Mini Stopper Switch STM

STM Series

Ultra-compact touch switch with hardened stopper surface.

At its smallest, size of φ8 and L dimension of 8 mm is available. Machine miniaturization can be achieved by embedding it in a narrow mounting space. It can also be mounted on the fingertip of a robot.

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Product Line

  • Made in Japan
  • High Durability
  • Long-selling
  • Cust Reduction
  • High Precision
  • Ultra-compact

Why Choose Us

Compact stopper touch switch

Compact stopper touch switch

Direct mounting in a limited space for checking the chuck of a robot hand or checking the seating of a workpiece, among other uses, enables miniaturization of machines.
Mini-switch with hardened, or tempered, stopper surface.

Impact, water, and oil resistant and can be used for diverse applications

Impact, water, and oil resistant and can be used for diverse applications

The end face of the switch is tempered to make it durable against collisions and can be used as a stopper.
Also, a model with an IP67 protection rating is available, allowing use in environments where oil or water.

Extensive lineup to match operating conditions

Extensive lineup to match operating conditions

We offer an extensive lineup of products, from long, short to ball-touch type that can be applied to sliding workpieces to meet your needs.

Customization Options for Your Needs:

Customization Options for Your Needs:

– Adding LEDs

[Positioning Touch Switch] Application

Product Line

Long type: Cabtyre cable type

PN Output mode Repeatability Outer Stroke IP code / protective structure LED Price Download
STM12A STM12A A:NO 10μm φ8×15 0.5mm IP44 without Buy on VONA
STM12A-L A:NO 10μm φ8×15 0.5mm IP44 with Buy on VONA
STM32A STM32A A:NO 10μm M10×0.75 0.5mm IP44 without Buy on VONA
STM32A-L A:NO 10μm M10×0.75 0.5mm IP44 with Buy on VONA Buy on
AutomationDirect
STM36A STM36A A:NO 10μm M10×0.75 0.5mm IP44 without Buy on VONA
STM36A-L A:NO 10μm M10×0.75 0.5mm IP44 with Buy on VONA
STM62A STM62A A:NO 10μm φ9×18.5 0.3mm IP67 without Buy on VONA
STM62A-L A:NO 10μm φ9×18.5 0.3mm IP67 with Buy on VONA
STM82A STM82A A:NO 10μm M10×0.75 0.3mm IP67 without Buy on VONA
STM82A-L A:NO 10μm M10×0.75 0.3mm IP67 with Buy on VONA Buy on
AutomationDirect
STMB12A STMB12A A:NO 10μm φ8×18 0.5mm IP44 without Buy on VONA
STMB12A-L A:NO 10μm φ8×18 0.5mm IP44 with Buy on VONA

Short type: Rose wire cable type

PN Output mode Repeatability Outer Stroke IP code / protective structure LED Price Download
STM11A STM11A A:NO 10μm φ8×8 0.5mm IP44 without Buy on VONA
STM31A STM31A A:NO 10μm M10×0.75 0.5mm IP44 without Buy on VONA Buy on
AutomationDirect
STM35A STM35A A:NO 10μm M10×0.75 0.5mm IP44 without Buy on VONA
STMB11A STMB11A A:NO 10μm φ8×11 0.5mm IP44 without Buy on VONA

Main Specifications

Repeatability  10μm (Range)
Contact Force  0.8Ｎ - 1Ｎ
Outer diameter 8 - 10mm
Overall length 8 - 19mm
How to touch the objects Straight-on touch / Angled-touch
Stroke  0.3ｍｍ - 0.5ｍｍ
Protective structure IP44 - IP67
Operating temperature range 0~80℃
Switch structure Dry contact
Output mode A : NO
Signal Point Middle of the stroke
Movement differential 0
Contact life time 10 million (No bungle caused by vibration and use under contracting rating)
Contact material SUS HRC50 -
Case and Stopper surface material SUS HRC45
Cable Short type: Core-wire cable 0.5m(×2) Oil resistant φ0.6 Tensile strength 15N
Long type: Cabtyre cable 2m Oil resistant φ2.8 / 2 cores, Tensile strength 30N
Operating temperature range 0℃ - 80℃　(Ice free)
Temperature drift 0 (because of no amplifier)
Oscillation 10 - 55Hz　Total amplitude 1.5 for X、Y、Z each direction
Impact 300㎨　for X、Y、Z each direction
Contact rating DC5V - DC24V　Steady current: 10mA or less (Rush current: 20mA or less）
When using the switch with LED, limit the current below 10mA.
Withstand load (N) 1500N - 3000N
Impact resistance (J) 0.2Ｊ
Note: Operating speed slower than 10mm/min is NOT recommended

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