E-Catalog > Metrol Touch Sensors Thailand Distributors > METROL switches

METROL switches are used for the application that requires high accuracy such as position detection and dimension discrimination.

Most widely used limit switches, micro switches, proximity sensors, and photoelectric sensors are called "existence detection sensor" to tell you that the objects are there or not, passing through or not.

And they are also used for counting objects. 

On the other hand, METROL precision switchesare called "position detection sensor" that can detect not only existence but also exact position and dimension of the objects.

Contact type switches are not affected by materials and shapes of detected objects.

Non-contact sensors

Conventional way

The signal point of non-contact sensors such as proximity sensors and photoelectric sensors vary according to the material of the object, surface condition of the object and the external conditions such as water, oil, dust, magnetic field, light intensity, and mutual interference, etc.

The repeatability can not be specified.

METROL Ultra precision Switches

Improved way

The signal point doesn't vary by the external conditions. 
Accidental signals do not occur, and the repleatability is guaranteed. (0.5 to 5 micron)

Eliminate costly intermediate actuators and design the machine compact.

Existence detection

Conventional way

Normally, those micro switches and non-contact type sensors (such as proximity sensors) are operated by the intermediate actuators or equivalent transmitting parts. And that results in costly designed machanism.

METROL Ultra precision Switches

Improved way

METROL switches can touch the detected objects directly by choosing the appropriate contacting part.

Simplify the process for preliminary installation, rearrangement, repair,and replacement.

Fixing the switch on a flange or a braket outside of the machine in advance and replacing the bracket and the switch as one unit, adjustment process in the machine is minimized.

Preliminary installing method cuts down the time for assembly,rearrangement, and repair. And more benefits are followings.

1) Machine capability and system functionality will be improved.
2) The availibality ratio on the machine will be improved. And that will bring high productivity.
3) The Mean Time Between Failure (MTBF) will be improved.
4) The Mean Time To Failure (MTTF) will be improved.

2 tasks with 1 device.

"Machine Components with a Built-in Switch" series can do two tasks with one device, eliminates extra machine parts, and save cost and space.

Ultra precision Switches are built in machine components like "Stopper bolts" , "Ball plungers" and "Spring plungers".

Limit switch

Conventional way

A dog and a stopper bolt are required.

Stopper Bolt with a Built-in Switch

Improved way

No need of dogs and stopper bolts.
Compact machine design

Cartridge system is applied to "Stopper bolt switches".

When the cartridge type switches need to be replaced, the process can be done by screwing out only the used cartridge from the switch case and replace with the new one.

This can eliminate the task of realignment of the signal point.

Even at initial setting, set the switch case first to avoid twisting the cable.