E-Catalog > VEKTEK USA > Pull-Down Clamps

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Product Information :

Name :
Pull-Down Clamps
Category :
  1. เครื่องจักร, อุปกรณ์เกี่ยวกับเครื่องจักร, เครื่องมือกล
Sub - Category :
  1. VEKTEK USA
Brand :
Vektek Pull-Down Clamps
Product Type :
  1. สินค้า, ผลิตภัณฑ์
Short Description :
Vektek Pull-Down Clamps จำหน่ายสินค้า vektek

Product Detail :

 

Collet Vises

If you are looking for a way to quickly fixture a number of round parts, Vektek's collet vises are an excellent solution. Designed to be flexible and conserve space, they can be ganged to fixture 3, 6, 9, 12 or more parts in a small space. Screw machine parts can be fixtured easily for speedy secondary operations. It is made to accept all collets designed to fit 5-C closers, even specials. The single, end located port even makes plumbing a breeze.

Vises, Hydraulic Collet

5-C Hydraulic Collet Vise

Specifications

 

image
 
Specifications
Model No. ***Mounting StyleNo. of Collet Stations **Approx. Radial Clamp Force
Per Station
(lb.)*
Approx. Downward Clamp Force
(lb.)*
Maximum Oil Capacity ,
(cu.in.)
Single Acting (S/A) Collet Closer, actuated hydraulically 1 direction, spring returned
15-5111-01  Manifold 1 15,000  4950 0.18
15-5119-01 Base 1 15,000 4950 0.18
15-5119-03 Base 3 15,000 4950 0.54
 

* Capacities are given at 5,000 psi maximum operation pressure.

** Collets not included.

5-C Pneumatic Collet Vise

Specifications

   
 
Specifications
Model No.Base StyleApprox. Radial
Clamp Force
Per Station
(lb.)*
Approx. Downward
Clamp Force
Per Station
(lb.)**
Weight
Double Acting (D/A) Collet Closer, actuated pneumatically both directions
15-5435-00 Square 2550 lbs. 750 lbs. 4.5 lbs
15-5435-01 Flange Mount 2550 lbs. 750 lbs. 5 lbs
 

* At 100 psi air pressure with a Ø 0.500 collet

 NOTE: Do not exceed 150 psi maximum inlet pressure

Pull Down Clamps

Specifications

 

For proper sealing, mating surface must be flat within 0.003 in.
with a maximum 63 µin Ra surface finish.

Specifications
Model
No.
Plumbing
Style
Lateral Clamping Force
(lb.)*
Pull Down Force
(lb.)*
Effective Horizontal Stroke
(in.)
Oil Capacity
(cu. in.)
Piston Area
(sq. in.)
Recommended Mounting Bolts
(not supplied)
Mounting Bolts Max. Torque
(ft. lb.)
Single Acting (S/A) Cylinders, actuated hydraulically 1 direction, spring returned.
15-3105-00 Manifold &
SAE Ported
870 290 0.20 0.03 0.175 5/16 18
15-3110-00 Manifold &
SAE Ported
3900 1300 0.31 0.24 0.761 7/16 63
15-3112-00 Manifold &
SAE Ported
6300 2100 0.39 0.49 1.247 5/8 150

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying the hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

image

Specifications
Model No.Clamping
Force (lb.) *
Horizontal Stroke (in.)Clamping Stroke (in.)Clamp Position Oil Capacity (in³)
Single Acting Cylinder, Hydraulically Advanced, Spring Returned
15-4108-01 1700 0.74 0.12 1.1
15-4108-03 3300 0.88 0.16 2.1

*Clamping Forces shown are for units operating at 5000 psi, the maximum operating pressure. Back pressure not to exceed 10 psi for consistent unclamping stroke.

Edge Clamps

Specifications

image
 

For proper sealing, mating surface must be flat within 0.003 in. with a maximum 63 µin Ra surface finish

 
Specifications
Model No.Plumbing StyleClamp Force (lb.*)Effective Horizontal StrokeVertical Blade MovementBody SizePiston Area (sq. in.)Oil Capacity (cu. in.)Approximate Pressure To Extend
Horiz.Vert.
Single Acting (S/A) Cylinders, actuated hydraulically one direction, spring returned.
15-3108-01 SAE Ported 2000 500 0.20 0.06 1.62 X 2.88 0.442 0.09 200 PSI
15-3108-00 Manifold 2000 500 0.20 0.06 1.62 X 2.50 0.442 0.09 200 PSI

Manifold mating surface shoud be flat to .003, with a maximum RA63 surface finish.

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

ID Expansion Clamps

Features

  • Ideal for clamping in blind holes
    or bore holes.
  • Save hours and fatigue by not
    manual clamping.
  • Consistent clamping force without
    the use of a torque wrench.
  • Range of expansion .010 to .015
    depending upon size.
  • Mandrel can be modified to
    fit application***
  • All cylinder pistons are chrome
    plated, hardened alloy steel.
image

 

 

 

 

 

 

Centering Clamp, Small Bore – 3 Point Contact

Double Acting

  • Bore clamp with 3 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Normally used with other clamps to secure the part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-01 3150 3 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-01 1.10 - 1.26 .99
15-8212-01 1.26 - 1.42 1.01
15-8213-01 1.42 - 1.57 1.27
15-8214-01 1.54 - 1.69 .06 1.30
15-8215-01 1.65 - 1.81 1.34
15-8216-01 1.77 - 1.93 1.38
15-8217-01 1.89 - 2.05 1.41
15-8218-01 2.01 - 2.17 1.46

Centering Clamp, Small Bore, 2 Point Contact

Double Acting

  • Often used when trying to locate using 2 bores on the same part. Use the 3 point Centering Clamp for the first bore, the 2 point unit for the second bore. This allows for minimal part variance of the second bore in a third clocking axis, while centralizing both.
  • Bore clamp with 2 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Can be used to center a slot, keyway or other non-round feature, but normally the 2nd bore in 1 part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-00 3150 2 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-00 1.10 - 1.26 .99
15-8212-00 1.26 - 1.42 1.01
15-8213-00 1.42 - 1.57 1.27
15-8214-00 1.54 - 1.69 .06 1.30
15-8215-00 1.65 - 1.81 1.33
15-8216-00 1.77 - 1.93 1.37
15-8217-00 1.89 - 2.05 1.40
15-8218-00 2.01 - 2.17 1.44

 

 

 

 

Special Use Clamps

 

  • Part Crowder, edge, pull-down, retract clamps and 5C collet vises
  • SAE Ported and manifold mount versions
  • Low profiles for milling over the clamp in most cases
  • 5C collet vises use standard collets, incorporate features to minimize collet "lobing" effect


Centering Clamps 

Small Bore and Large Bore Centering Clamps with 2 or 3 centering posts

Centering Clamps are essentially a bore clamp used for locating a part. They are capable of centering parts using a rough or finished bored hole. Internal clamping posts expands radially to the bore diameter of the workpiece to be clamped. If 1 clamp is used, most applications call for a 3 point clamp to center the bore, if a second bore clamp is to be used, a 2 point clamp provides centering and clocking for the secondary bore.

Position repeatability ±.001”.

We offer two styles of Centering Clamps, with either 2 or 3 clamping points, in Small and Large Bore sizes. The Small size centers bores .98” to 2.17”. The Large size clamps bores 2.13” to 5.12.” 

The compact design of the smaller has a clamping force of 3,150 lb at 5,000 psi. The larger models offer three clamping force ranges of 2,520, 3,930 and 6,300 lb at 5,000 psi, enough to position even heavy parts.
 All models are double acting. Which means the cylinder is actuated hydraulically in both directions. All components are made from high-grade case-hardened steel.

A simple cavity design makes machining for manifold mounting simple. Hydraulic fluid is supplied through manifold channels drilled in the fixture body. Alternatively if surface mounted, hydraulic fluid may be supplied through a connection plate. Connection plates are available for either pipe connections or bolt down O-ring manifold mounting. 

Note: Centering Clamps are not suitable for use on lathes or without additional clamps for holding against rotational forces. Be sure that your bore will not be damaged by contact from the posts which contact the part. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

Collet Vises

If you are looking for a way to quickly fixture a number of round parts, Vektek's collet vises are an excellent solution. Designed to be flexible and conserve space, they can be ganged to fixture 3, 6, 9, 12 or more parts in a small space. Screw machine parts can be fixtured easily for speedy secondary operations. It is made to accept all collets designed to fit 5-C closers, even specials. The single, end located port even makes plumbing a breeze.

Vises, Hydraulic Collet

5-C Hydraulic Collet Vise

Specifications

 

image
 
Specifications
Model No. ***Mounting StyleNo. of Collet Stations **Approx. Radial Clamp Force
Per Station
(lb.)*
Approx. Downward Clamp Force
(lb.)*
Maximum Oil Capacity ,
(cu.in.)
Single Acting (S/A) Collet Closer, actuated hydraulically 1 direction, spring returned
15-5111-01  Manifold 1 15,000  4950 0.18
15-5119-01 Base 1 15,000 4950 0.18
15-5119-03 Base 3 15,000 4950 0.54
 

* Capacities are given at 5,000 psi maximum operation pressure.

** Collets not included.

5-C Pneumatic Collet Vise

Specifications

   
 
Specifications
Model No.Base StyleApprox. Radial
Clamp Force
Per Station
(lb.)*
Approx. Downward
Clamp Force
Per Station
(lb.)**
Weight
Double Acting (D/A) Collet Closer, actuated pneumatically both directions
15-5435-00 Square 2550 lbs. 750 lbs. 4.5 lbs
15-5435-01 Flange Mount 2550 lbs. 750 lbs. 5 lbs
 

* At 100 psi air pressure with a Ø 0.500 collet

 NOTE: Do not exceed 150 psi maximum inlet pressure

Pull Down Clamps

Specifications

 

For proper sealing, mating surface must be flat within 0.003 in.
with a maximum 63 µin Ra surface finish.

Specifications
Model
No.
Plumbing
Style
Lateral Clamping Force
(lb.)*
Pull Down Force
(lb.)*
Effective Horizontal Stroke
(in.)
Oil Capacity
(cu. in.)
Piston Area
(sq. in.)
Recommended Mounting Bolts
(not supplied)
Mounting Bolts Max. Torque
(ft. lb.)
Single Acting (S/A) Cylinders, actuated hydraulically 1 direction, spring returned.
15-3105-00 Manifold &
SAE Ported
870 290 0.20 0.03 0.175 5/16 18
15-3110-00 Manifold &
SAE Ported
3900 1300 0.31 0.24 0.761 7/16 63
15-3112-00 Manifold &
SAE Ported
6300 2100 0.39 0.49 1.247 5/8 150

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying the hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

image

Specifications
Model No.Clamping
Force (lb.) *
Horizontal Stroke (in.)Clamping Stroke (in.)Clamp Position Oil Capacity (in³)
Single Acting Cylinder, Hydraulically Advanced, Spring Returned
15-4108-01 1700 0.74 0.12 1.1
15-4108-03 3300 0.88 0.16 2.1

*Clamping Forces shown are for units operating at 5000 psi, the maximum operating pressure. Back pressure not to exceed 10 psi for consistent unclamping stroke.

Edge Clamps

Specifications

image
 

For proper sealing, mating surface must be flat within 0.003 in. with a maximum 63 µin Ra surface finish

 
Specifications
Model No.Plumbing StyleClamp Force (lb.*)Effective Horizontal StrokeVertical Blade MovementBody SizePiston Area (sq. in.)Oil Capacity (cu. in.)Approximate Pressure To Extend
Horiz.Vert.
Single Acting (S/A) Cylinders, actuated hydraulically one direction, spring returned.
15-3108-01 SAE Ported 2000 500 0.20 0.06 1.62 X 2.88 0.442 0.09 200 PSI
15-3108-00 Manifold 2000 500 0.20 0.06 1.62 X 2.50 0.442 0.09 200 PSI

Manifold mating surface shoud be flat to .003, with a maximum RA63 surface finish.

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

ID Expansion Clamps

Features

  • Ideal for clamping in blind holes
    or bore holes.
  • Save hours and fatigue by not
    manual clamping.
  • Consistent clamping force without
    the use of a torque wrench.
  • Range of expansion .010 to .015
    depending upon size.
  • Mandrel can be modified to
    fit application***
  • All cylinder pistons are chrome
    plated, hardened alloy steel.
image

 

 

 

 

 

 

Centering Clamp, Small Bore – 3 Point Contact

Double Acting

  • Bore clamp with 3 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Normally used with other clamps to secure the part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-01 3150 3 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-01 1.10 - 1.26 .99
15-8212-01 1.26 - 1.42 1.01
15-8213-01 1.42 - 1.57 1.27
15-8214-01 1.54 - 1.69 .06 1.30
15-8215-01 1.65 - 1.81 1.34
15-8216-01 1.77 - 1.93 1.38
15-8217-01 1.89 - 2.05 1.41
15-8218-01 2.01 - 2.17 1.46

Centering Clamp, Small Bore, 2 Point Contact

Double Acting

  • Often used when trying to locate using 2 bores on the same part. Use the 3 point Centering Clamp for the first bore, the 2 point unit for the second bore. This allows for minimal part variance of the second bore in a third clocking axis, while centralizing both.
  • Bore clamp with 2 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Can be used to center a slot, keyway or other non-round feature, but normally the 2nd bore in 1 part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-00 3150 2 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-00 1.10 - 1.26 .99
15-8212-00 1.26 - 1.42 1.01
15-8213-00 1.42 - 1.57 1.27
15-8214-00 1.54 - 1.69 .06 1.30
15-8215-00 1.65 - 1.81 1.33
15-8216-00 1.77 - 1.93 1.37
15-8217-00 1.89 - 2.05 1.40
15-8218-00 2.01 - 2.17 1.44

 

 

 

 

Special Use Clamps

 

  • Part Crowder, edge, pull-down, retract clamps and 5C collet vises
  • SAE Ported and manifold mount versions
  • Low profiles for milling over the clamp in most cases
  • 5C collet vises use standard collets, incorporate features to minimize collet "lobing" effect


Centering Clamps 

Small Bore and Large Bore Centering Clamps with 2 or 3 centering posts

Centering Clamps are essentially a bore clamp used for locating a part. They are capable of centering parts using a rough or finished bored hole. Internal clamping posts expands radially to the bore diameter of the workpiece to be clamped. If 1 clamp is used, most applications call for a 3 point clamp to center the bore, if a second bore clamp is to be used, a 2 point clamp provides centering and clocking for the secondary bore.

Position repeatability ±.001”.

We offer two styles of Centering Clamps, with either 2 or 3 clamping points, in Small and Large Bore sizes. The Small size centers bores .98” to 2.17”. The Large size clamps bores 2.13” to 5.12.” 

The compact design of the smaller has a clamping force of 3,150 lb at 5,000 psi. The larger models offer three clamping force ranges of 2,520, 3,930 and 6,300 lb at 5,000 psi, enough to position even heavy parts.
 All models are double acting. Which means the cylinder is actuated hydraulically in both directions. All components are made from high-grade case-hardened steel.

A simple cavity design makes machining for manifold mounting simple. Hydraulic fluid is supplied through manifold channels drilled in the fixture body. Alternatively if surface mounted, hydraulic fluid may be supplied through a connection plate. Connection plates are available for either pipe connections or bolt down O-ring manifold mounting. 

Note: Centering Clamps are not suitable for use on lathes or without additional clamps for holding against rotational forces. Be sure that your bore will not be damaged by contact from the posts which contact the part. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

Collet Vises

If you are looking for a way to quickly fixture a number of round parts, Vektek's collet vises are an excellent solution. Designed to be flexible and conserve space, they can be ganged to fixture 3, 6, 9, 12 or more parts in a small space. Screw machine parts can be fixtured easily for speedy secondary operations. It is made to accept all collets designed to fit 5-C closers, even specials. The single, end located port even makes plumbing a breeze.

Vises, Hydraulic Collet

5-C Hydraulic Collet Vise

Specifications

 

image
 
Specifications
Model No. ***Mounting StyleNo. of Collet Stations **Approx. Radial Clamp Force
Per Station
(lb.)*
Approx. Downward Clamp Force
(lb.)*
Maximum Oil Capacity ,
(cu.in.)
Single Acting (S/A) Collet Closer, actuated hydraulically 1 direction, spring returned
15-5111-01  Manifold 1 15,000  4950 0.18
15-5119-01 Base 1 15,000 4950 0.18
15-5119-03 Base 3 15,000 4950 0.54
 

* Capacities are given at 5,000 psi maximum operation pressure.

** Collets not included.

5-C Pneumatic Collet Vise

Specifications

   
 
Specifications
Model No.Base StyleApprox. Radial
Clamp Force
Per Station
(lb.)*
Approx. Downward
Clamp Force
Per Station
(lb.)**
Weight
Double Acting (D/A) Collet Closer, actuated pneumatically both directions
15-5435-00 Square 2550 lbs. 750 lbs. 4.5 lbs
15-5435-01 Flange Mount 2550 lbs. 750 lbs. 5 lbs
 

* At 100 psi air pressure with a Ø 0.500 collet

 NOTE: Do not exceed 150 psi maximum inlet pressure

Pull Down Clamps

Specifications

 

For proper sealing, mating surface must be flat within 0.003 in.
with a maximum 63 µin Ra surface finish.

Specifications
Model
No.
Plumbing
Style
Lateral Clamping Force
(lb.)*
Pull Down Force
(lb.)*
Effective Horizontal Stroke
(in.)
Oil Capacity
(cu. in.)
Piston Area
(sq. in.)
Recommended Mounting Bolts
(not supplied)
Mounting Bolts Max. Torque
(ft. lb.)
Single Acting (S/A) Cylinders, actuated hydraulically 1 direction, spring returned.
15-3105-00 Manifold &
SAE Ported
870 290 0.20 0.03 0.175 5/16 18
15-3110-00 Manifold &
SAE Ported
3900 1300 0.31 0.24 0.761 7/16 63
15-3112-00 Manifold &
SAE Ported
6300 2100 0.39 0.49 1.247 5/8 150

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying the hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

image

Specifications
Model No.Clamping
Force (lb.) *
Horizontal Stroke (in.)Clamping Stroke (in.)Clamp Position Oil Capacity (in³)
Single Acting Cylinder, Hydraulically Advanced, Spring Returned
15-4108-01 1700 0.74 0.12 1.1
15-4108-03 3300 0.88 0.16 2.1

*Clamping Forces shown are for units operating at 5000 psi, the maximum operating pressure. Back pressure not to exceed 10 psi for consistent unclamping stroke.

Edge Clamps

Specifications

image
 

For proper sealing, mating surface must be flat within 0.003 in. with a maximum 63 µin Ra surface finish

 
Specifications
Model No.Plumbing StyleClamp Force (lb.*)Effective Horizontal StrokeVertical Blade MovementBody SizePiston Area (sq. in.)Oil Capacity (cu. in.)Approximate Pressure To Extend
Horiz.Vert.
Single Acting (S/A) Cylinders, actuated hydraulically one direction, spring returned.
15-3108-01 SAE Ported 2000 500 0.20 0.06 1.62 X 2.88 0.442 0.09 200 PSI
15-3108-00 Manifold 2000 500 0.20 0.06 1.62 X 2.50 0.442 0.09 200 PSI

Manifold mating surface shoud be flat to .003, with a maximum RA63 surface finish.

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

ID Expansion Clamps

Features

  • Ideal for clamping in blind holes
    or bore holes.
  • Save hours and fatigue by not
    manual clamping.
  • Consistent clamping force without
    the use of a torque wrench.
  • Range of expansion .010 to .015
    depending upon size.
  • Mandrel can be modified to
    fit application***
  • All cylinder pistons are chrome
    plated, hardened alloy steel.
image

 

 

 

 

 

 

Centering Clamp, Small Bore – 3 Point Contact

Double Acting

  • Bore clamp with 3 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Normally used with other clamps to secure the part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-01 3150 3 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-01 1.10 - 1.26 .99
15-8212-01 1.26 - 1.42 1.01
15-8213-01 1.42 - 1.57 1.27
15-8214-01 1.54 - 1.69 .06 1.30
15-8215-01 1.65 - 1.81 1.34
15-8216-01 1.77 - 1.93 1.38
15-8217-01 1.89 - 2.05 1.41
15-8218-01 2.01 - 2.17 1.46

Centering Clamp, Small Bore, 2 Point Contact

Double Acting

  • Often used when trying to locate using 2 bores on the same part. Use the 3 point Centering Clamp for the first bore, the 2 point unit for the second bore. This allows for minimal part variance of the second bore in a third clocking axis, while centralizing both.
  • Bore clamp with 2 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Can be used to center a slot, keyway or other non-round feature, but normally the 2nd bore in 1 part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-00 3150 2 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-00 1.10 - 1.26 .99
15-8212-00 1.26 - 1.42 1.01
15-8213-00 1.42 - 1.57 1.27
15-8214-00 1.54 - 1.69 .06 1.30
15-8215-00 1.65 - 1.81 1.33
15-8216-00 1.77 - 1.93 1.37
15-8217-00 1.89 - 2.05 1.40
15-8218-00 2.01 - 2.17 1.44

 

 

 

 

Special Use Clamps

 

  • Part Crowder, edge, pull-down, retract clamps and 5C collet vises
  • SAE Ported and manifold mount versions
  • Low profiles for milling over the clamp in most cases
  • 5C collet vises use standard collets, incorporate features to minimize collet "lobing" effect


Centering Clamps 

Small Bore and Large Bore Centering Clamps with 2 or 3 centering posts

Centering Clamps are essentially a bore clamp used for locating a part. They are capable of centering parts using a rough or finished bored hole. Internal clamping posts expands radially to the bore diameter of the workpiece to be clamped. If 1 clamp is used, most applications call for a 3 point clamp to center the bore, if a second bore clamp is to be used, a 2 point clamp provides centering and clocking for the secondary bore.

Position repeatability ±.001”.

We offer two styles of Centering Clamps, with either 2 or 3 clamping points, in Small and Large Bore sizes. The Small size centers bores .98” to 2.17”. The Large size clamps bores 2.13” to 5.12.” 

The compact design of the smaller has a clamping force of 3,150 lb at 5,000 psi. The larger models offer three clamping force ranges of 2,520, 3,930 and 6,300 lb at 5,000 psi, enough to position even heavy parts.
 All models are double acting. Which means the cylinder is actuated hydraulically in both directions. All components are made from high-grade case-hardened steel.

A simple cavity design makes machining for manifold mounting simple. Hydraulic fluid is supplied through manifold channels drilled in the fixture body. Alternatively if surface mounted, hydraulic fluid may be supplied through a connection plate. Connection plates are available for either pipe connections or bolt down O-ring manifold mounting. 

Note: Centering Clamps are not suitable for use on lathes or without additional clamps for holding against rotational forces. Be sure that your bore will not be damaged by contact from the posts which contact the part. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

Collet Vises

If you are looking for a way to quickly fixture a number of round parts, Vektek's collet vises are an excellent solution. Designed to be flexible and conserve space, they can be ganged to fixture 3, 6, 9, 12 or more parts in a small space. Screw machine parts can be fixtured easily for speedy secondary operations. It is made to accept all collets designed to fit 5-C closers, even specials. The single, end located port even makes plumbing a breeze.

Vises, Hydraulic Collet

5-C Hydraulic Collet Vise

Specifications

 

image
 
Specifications
Model No. ***Mounting StyleNo. of Collet Stations **Approx. Radial Clamp Force
Per Station
(lb.)*
Approx. Downward Clamp Force
(lb.)*
Maximum Oil Capacity ,
(cu.in.)
Single Acting (S/A) Collet Closer, actuated hydraulically 1 direction, spring returned
15-5111-01  Manifold 1 15,000  4950 0.18
15-5119-01 Base 1 15,000 4950 0.18
15-5119-03 Base 3 15,000 4950 0.54
 

* Capacities are given at 5,000 psi maximum operation pressure.

** Collets not included.

5-C Pneumatic Collet Vise

Specifications

   
 
Specifications
Model No.Base StyleApprox. Radial
Clamp Force
Per Station
(lb.)*
Approx. Downward
Clamp Force
Per Station
(lb.)**
Weight
Double Acting (D/A) Collet Closer, actuated pneumatically both directions
15-5435-00 Square 2550 lbs. 750 lbs. 4.5 lbs
15-5435-01 Flange Mount 2550 lbs. 750 lbs. 5 lbs
 

* At 100 psi air pressure with a Ø 0.500 collet

 NOTE: Do not exceed 150 psi maximum inlet pressure

Pull Down Clamps

Specifications

 

For proper sealing, mating surface must be flat within 0.003 in.
with a maximum 63 µin Ra surface finish.

Specifications
Model
No.
Plumbing
Style
Lateral Clamping Force
(lb.)*
Pull Down Force
(lb.)*
Effective Horizontal Stroke
(in.)
Oil Capacity
(cu. in.)
Piston Area
(sq. in.)
Recommended Mounting Bolts
(not supplied)
Mounting Bolts Max. Torque
(ft. lb.)
Single Acting (S/A) Cylinders, actuated hydraulically 1 direction, spring returned.
15-3105-00 Manifold &
SAE Ported
870 290 0.20 0.03 0.175 5/16 18
15-3110-00 Manifold &
SAE Ported
3900 1300 0.31 0.24 0.761 7/16 63
15-3112-00 Manifold &
SAE Ported
6300 2100 0.39 0.49 1.247 5/8 150

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying the hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

image

Specifications
Model No.Clamping
Force (lb.) *
Horizontal Stroke (in.)Clamping Stroke (in.)Clamp Position Oil Capacity (in³)
Single Acting Cylinder, Hydraulically Advanced, Spring Returned
15-4108-01 1700 0.74 0.12 1.1
15-4108-03 3300 0.88 0.16 2.1

*Clamping Forces shown are for units operating at 5000 psi, the maximum operating pressure. Back pressure not to exceed 10 psi for consistent unclamping stroke.

Edge Clamps

Specifications

image
 

For proper sealing, mating surface must be flat within 0.003 in. with a maximum 63 µin Ra surface finish

 
Specifications
Model No.Plumbing StyleClamp Force (lb.*)Effective Horizontal StrokeVertical Blade MovementBody SizePiston Area (sq. in.)Oil Capacity (cu. in.)Approximate Pressure To Extend
Horiz.Vert.
Single Acting (S/A) Cylinders, actuated hydraulically one direction, spring returned.
15-3108-01 SAE Ported 2000 500 0.20 0.06 1.62 X 2.88 0.442 0.09 200 PSI
15-3108-00 Manifold 2000 500 0.20 0.06 1.62 X 2.50 0.442 0.09 200 PSI

Manifold mating surface shoud be flat to .003, with a maximum RA63 surface finish.

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

ID Expansion Clamps

Features

  • Ideal for clamping in blind holes
    or bore holes.
  • Save hours and fatigue by not
    manual clamping.
  • Consistent clamping force without
    the use of a torque wrench.
  • Range of expansion .010 to .015
    depending upon size.
  • Mandrel can be modified to
    fit application***
  • All cylinder pistons are chrome
    plated, hardened alloy steel.
image

 

 

 

 

 

 

Centering Clamp, Small Bore – 3 Point Contact

Double Acting

  • Bore clamp with 3 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Normally used with other clamps to secure the part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-01 3150 3 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-01 1.10 - 1.26 .99
15-8212-01 1.26 - 1.42 1.01
15-8213-01 1.42 - 1.57 1.27
15-8214-01 1.54 - 1.69 .06 1.30
15-8215-01 1.65 - 1.81 1.34
15-8216-01 1.77 - 1.93 1.38
15-8217-01 1.89 - 2.05 1.41
15-8218-01 2.01 - 2.17 1.46

Centering Clamp, Small Bore, 2 Point Contact

Double Acting

  • Often used when trying to locate using 2 bores on the same part. Use the 3 point Centering Clamp for the first bore, the 2 point unit for the second bore. This allows for minimal part variance of the second bore in a third clocking axis, while centralizing both.
  • Bore clamp with 2 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Can be used to center a slot, keyway or other non-round feature, but normally the 2nd bore in 1 part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-00 3150 2 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-00 1.10 - 1.26 .99
15-8212-00 1.26 - 1.42 1.01
15-8213-00 1.42 - 1.57 1.27
15-8214-00 1.54 - 1.69 .06 1.30
15-8215-00 1.65 - 1.81 1.33
15-8216-00 1.77 - 1.93 1.37
15-8217-00 1.89 - 2.05 1.40
15-8218-00 2.01 - 2.17 1.44

 

 

 

 

Special Use Clamps

 

  • Part Crowder, edge, pull-down, retract clamps and 5C collet vises
  • SAE Ported and manifold mount versions
  • Low profiles for milling over the clamp in most cases
  • 5C collet vises use standard collets, incorporate features to minimize collet "lobing" effect


Centering Clamps 

Small Bore and Large Bore Centering Clamps with 2 or 3 centering posts

Centering Clamps are essentially a bore clamp used for locating a part. They are capable of centering parts using a rough or finished bored hole. Internal clamping posts expands radially to the bore diameter of the workpiece to be clamped. If 1 clamp is used, most applications call for a 3 point clamp to center the bore, if a second bore clamp is to be used, a 2 point clamp provides centering and clocking for the secondary bore.

Position repeatability ±.001”.

We offer two styles of Centering Clamps, with either 2 or 3 clamping points, in Small and Large Bore sizes. The Small size centers bores .98” to 2.17”. The Large size clamps bores 2.13” to 5.12.” 

The compact design of the smaller has a clamping force of 3,150 lb at 5,000 psi. The larger models offer three clamping force ranges of 2,520, 3,930 and 6,300 lb at 5,000 psi, enough to position even heavy parts.
 All models are double acting. Which means the cylinder is actuated hydraulically in both directions. All components are made from high-grade case-hardened steel.

A simple cavity design makes machining for manifold mounting simple. Hydraulic fluid is supplied through manifold channels drilled in the fixture body. Alternatively if surface mounted, hydraulic fluid may be supplied through a connection plate. Connection plates are available for either pipe connections or bolt down O-ring manifold mounting. 

Note: Centering Clamps are not suitable for use on lathes or without additional clamps for holding against rotational forces. Be sure that your bore will not be damaged by contact from the posts which contact the part. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

Collet Vises

If you are looking for a way to quickly fixture a number of round parts, Vektek's collet vises are an excellent solution. Designed to be flexible and conserve space, they can be ganged to fixture 3, 6, 9, 12 or more parts in a small space. Screw machine parts can be fixtured easily for speedy secondary operations. It is made to accept all collets designed to fit 5-C closers, even specials. The single, end located port even makes plumbing a breeze.

Vises, Hydraulic Collet

5-C Hydraulic Collet Vise

Specifications

 

image
 
Specifications
Model No. ***Mounting StyleNo. of Collet Stations **Approx. Radial Clamp Force
Per Station
(lb.)*
Approx. Downward Clamp Force
(lb.)*
Maximum Oil Capacity ,
(cu.in.)
Single Acting (S/A) Collet Closer, actuated hydraulically 1 direction, spring returned
15-5111-01  Manifold 1 15,000  4950 0.18
15-5119-01 Base 1 15,000 4950 0.18
15-5119-03 Base 3 15,000 4950 0.54
 

* Capacities are given at 5,000 psi maximum operation pressure.

** Collets not included.

5-C Pneumatic Collet Vise

Specifications

   
 
Specifications
Model No.Base StyleApprox. Radial
Clamp Force
Per Station
(lb.)*
Approx. Downward
Clamp Force
Per Station
(lb.)**
Weight
Double Acting (D/A) Collet Closer, actuated pneumatically both directions
15-5435-00 Square 2550 lbs. 750 lbs. 4.5 lbs
15-5435-01 Flange Mount 2550 lbs. 750 lbs. 5 lbs
 

* At 100 psi air pressure with a Ø 0.500 collet

 NOTE: Do not exceed 150 psi maximum inlet pressure

Pull Down Clamps

Specifications

 

For proper sealing, mating surface must be flat within 0.003 in.
with a maximum 63 µin Ra surface finish.

Specifications
Model
No.
Plumbing
Style
Lateral Clamping Force
(lb.)*
Pull Down Force
(lb.)*
Effective Horizontal Stroke
(in.)
Oil Capacity
(cu. in.)
Piston Area
(sq. in.)
Recommended Mounting Bolts
(not supplied)
Mounting Bolts Max. Torque
(ft. lb.)
Single Acting (S/A) Cylinders, actuated hydraulically 1 direction, spring returned.
15-3105-00 Manifold &
SAE Ported
870 290 0.20 0.03 0.175 5/16 18
15-3110-00 Manifold &
SAE Ported
3900 1300 0.31 0.24 0.761 7/16 63
15-3112-00 Manifold &
SAE Ported
6300 2100 0.39 0.49 1.247 5/8 150

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying the hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

image

Specifications
Model No.Clamping
Force (lb.) *
Horizontal Stroke (in.)Clamping Stroke (in.)Clamp Position Oil Capacity (in³)
Single Acting Cylinder, Hydraulically Advanced, Spring Returned
15-4108-01 1700 0.74 0.12 1.1
15-4108-03 3300 0.88 0.16 2.1

*Clamping Forces shown are for units operating at 5000 psi, the maximum operating pressure. Back pressure not to exceed 10 psi for consistent unclamping stroke.

Edge Clamps

Specifications

image
 

For proper sealing, mating surface must be flat within 0.003 in. with a maximum 63 µin Ra surface finish

 
Specifications
Model No.Plumbing StyleClamp Force (lb.*)Effective Horizontal StrokeVertical Blade MovementBody SizePiston Area (sq. in.)Oil Capacity (cu. in.)Approximate Pressure To Extend
Horiz.Vert.
Single Acting (S/A) Cylinders, actuated hydraulically one direction, spring returned.
15-3108-01 SAE Ported 2000 500 0.20 0.06 1.62 X 2.88 0.442 0.09 200 PSI
15-3108-00 Manifold 2000 500 0.20 0.06 1.62 X 2.50 0.442 0.09 200 PSI

Manifold mating surface shoud be flat to .003, with a maximum RA63 surface finish.

* Cylinder capacities are listed at 5,000 psi maximum operating pressure. The output force is adjustable by varying hydraulic system pressure. (Actual force may vary slightly due to friction loss, seal and wiper drag, and/or return springs.)

 

ID Expansion Clamps

Features

  • Ideal for clamping in blind holes
    or bore holes.
  • Save hours and fatigue by not
    manual clamping.
  • Consistent clamping force without
    the use of a torque wrench.
  • Range of expansion .010 to .015
    depending upon size.
  • Mandrel can be modified to
    fit application***
  • All cylinder pistons are chrome
    plated, hardened alloy steel.
image

 

 

 

 

 

 

Centering Clamp, Small Bore – 3 Point Contact

Double Acting

  • Bore clamp with 3 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Normally used with other clamps to secure the part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-01 3150 3 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-01 1.10 - 1.26 .99
15-8212-01 1.26 - 1.42 1.01
15-8213-01 1.42 - 1.57 1.27
15-8214-01 1.54 - 1.69 .06 1.30
15-8215-01 1.65 - 1.81 1.34
15-8216-01 1.77 - 1.93 1.38
15-8217-01 1.89 - 2.05 1.41
15-8218-01 2.01 - 2.17 1.46

Centering Clamp, Small Bore, 2 Point Contact

Double Acting

  • Often used when trying to locate using 2 bores on the same part. Use the 3 point Centering Clamp for the first bore, the 2 point unit for the second bore. This allows for minimal part variance of the second bore in a third clocking axis, while centralizing both.
  • Bore clamp with 2 point used for concentric positioning of a bore.
  • Capable of moving a part approximately 0.100” after the part is placed over the center mandrel.
  • The clamping points retract for easy loading, then expand hydraulically to center the bore.
  • Positional repeatability of ±.001”.
  • Compact design keeps the large capacity working cylinder out of the way and below the part.
  • May be manifold mounted as shown or purchase the optional Mounting Plate for bolt-down or access to porting when mounting.
  • Fits bore sizes from 1-2.17”.
  • Can be used to center a slot, keyway or other non-round feature, but normally the 2nd bore in 1 part. Requires the use of fixed stops and or additional clamps to resist direct rotational torque.

 

Specifications
Model No.Clamp Force at 5000 psi (lb)Clamping PointsClamping Range Ø (in)Repeatability ± (in)Oil Capacity Extend (cu. in.)Oil Capacity Retract (cu. in.)Weight (lb)Centering Clamp Adapter
Double Acting (D/A) Cylinders actuated hydraulically both directions.
15-8210-00 3150 2 .98 - 1.14 .001 .10 .08 .97 15-8200-06
15-8211-00 1.10 - 1.26 .99
15-8212-00 1.26 - 1.42 1.01
15-8213-00 1.42 - 1.57 1.27
15-8214-00 1.54 - 1.69 .06 1.30
15-8215-00 1.65 - 1.81 1.33
15-8216-00 1.77 - 1.93 1.37
15-8217-00 1.89 - 2.05 1.40
15-8218-00 2.01 - 2.17 1.44

 

 

 

 

Special Use Clamps

 

  • Part Crowder, edge, pull-down, retract clamps and 5C collet vises
  • SAE Ported and manifold mount versions
  • Low profiles for milling over the clamp in most cases
  • 5C collet vises use standard collets, incorporate features to minimize collet "lobing" effect


Centering Clamps 

Small Bore and Large Bore Centering Clamps with 2 or 3 centering posts

Centering Clamps are essentially a bore clamp used for locating a part. They are capable of centering parts using a rough or finished bored hole. Internal clamping posts expands radially to the bore diameter of the workpiece to be clamped. If 1 clamp is used, most applications call for a 3 point clamp to center the bore, if a second bore clamp is to be used, a 2 point clamp provides centering and clocking for the secondary bore.

Position repeatability ±.001”.

We offer two styles of Centering Clamps, with either 2 or 3 clamping points, in Small and Large Bore sizes. The Small size centers bores .98” to 2.17”. The Large size clamps bores 2.13” to 5.12.” 

The compact design of the smaller has a clamping force of 3,150 lb at 5,000 psi. The larger models offer three clamping force ranges of 2,520, 3,930 and 6,300 lb at 5,000 psi, enough to position even heavy parts.
 All models are double acting. Which means the cylinder is actuated hydraulically in both directions. All components are made from high-grade case-hardened steel.

A simple cavity design makes machining for manifold mounting simple. Hydraulic fluid is supplied through manifold channels drilled in the fixture body. Alternatively if surface mounted, hydraulic fluid may be supplied through a connection plate. Connection plates are available for either pipe connections or bolt down O-ring manifold mounting. 

Note: Centering Clamps are not suitable for use on lathes or without additional clamps for holding against rotational forces. Be sure that your bore will not be damaged by contact from the posts which contact the part. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



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