High Precision MT-Touch Switches

MT Series

The most advanced model of touch switches, highest precision and high durability

Amplifier-free and repeatability in the range 0.5µm.
Protection rating IP67 ensures stabilized detection even in environments with water, oil, or coolant.
With the stability and accuracy achieved through contact-method technology, this touch switch contributes to the reduction of man-hours in the manufacturing process and downtime on the production line.

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Product Line

  • Made in Japan
  • High Durability
  • Long-selling
  • Cust Reduction
  • High Precision
  • Low Contact Force

Why Choose Us

Protection rating IP67 ensures resistance to oil and chips.

Protection rating IP67 ensures resistance to oil and chips.

Precise positioning, enabled by the contact, or touch, technology, is available even in adverse environments with splashing water, oil, coolant, and chips.
Proven track record of application in CNC machine tools, automotive production lines, and in adverse environments where chemicals are involved.

High-precision positioning with a repeatability of 0.5 μm (range)

High-precision positioning with a repeatability of 0.5 μm (range)

Co-developed with Toyota Motor Corporation as a switch that provides stable output of high-precision position signals even on automobile production lines.
With a track record of 500,000 units used in machine tools for positioning the origin of cutting tools and tables, we boast the world’s top share of the machine tool market.

Customization of the contact-probe is easy.

Customization of the contact-probe is easy.

Customizing the contact-probe is possible for a variety of objects to be measured. If the measuring contact probe has an M2.5 mounting area, it can be installed by the customer, whether made by another company or by yourself.
*For P10DH series[ Download document ]

Amplifier-free, precision mechanical system prevents false detection

Amplifier-free, precision mechanical system prevents false detection

Metrol touch switches avoid false detection due to mutual interference between sensors or changes in magnetic fields, unlike electric sensors.
In addition, the absence of amplifiers eliminates temperature drift and stress differences due to self-heating and enables detection of minute movements in the micron range.
This prevents defects and minor production stoppages caused by false detection, contributing to improved production efficiency and quality.

The following customizations are available depending on your intended application:

The following customizations are available depending on your intended application:

– Modification of measuring contact point/probe
– Change or add sensor protection boots
– Install protective cover for chips
– Adjusting the pressure of contact
– Cord length/protection, change/addition of relay connector

Please see catalog for details.

The interface unit (CL-1F) is recommended for overcurrent protection

The interface unit (CL-1F) is recommended for overcurrent protection

In areas with unstable current, there is a risk of damage to the internal contacts due to excessive inrush current or overcurrent. Please use a relay (CL-1F) as a set to protect the sensor’s contact before use. We have received inquiries about problems caused by overcurrent, especially in areas such as India.

[For Beginners]
Thorough Explanation of High-precision Touch Switch Applications

[Must-see for Designers]
Introduction of the P10DH Series with Free Customization of the Contacting Parts

Product Line

For straight-on touch application

PN Output mode Repeatability Outer Stroke IP code / protective structure LED Price Download
P10DA-A P10DA-A A:NO 0.5μm M10×0.5 3mm IP67 without Buy on VONA
P10DA-AL P10DA-AL A:NO 0.5μm M10×0.5 3mm IP67 with Buy on VONA Buy on
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P10DB-A P10DB-A B:NC 0.5μm M10×0.5 3mm IP67 without Buy on VONA
P10DB-AL P10DB-AL B:NC 0.5μm M10×0.5 3mm IP67 with Buy on VONA Buy on
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P10DLB-A P10DLB-A B:NC 0.5μm M10×0.5 10mm IP67 without Buy on VONA
P10DLB-AL P10DLB-AL B:NC 0.5μm M10×0.5 10mm IP67 with Buy on VONA Buy on
AutomationDirect
P10SA-A P10SA-A A:NO 0.5μm φ10 3mm IP67 without Buy on VONA
P10SA-AL A:NO 0.5μm φ10 3mm IP67 with Buy on VONA
P10SB-A P10SB-A B:NC 0.5μm φ10 3mm IP67 without Buy on VONA
P10SB-AL B:NC 0.5μm φ10 3mm IP67 with Buy on VONA
P12DA-A P12DA-A A:NO 0.5μm 10×18×31 3mm IP67 without Buy on VONA
P12DA-AL A:NO 0.5μm 10×18×31 3mm IP67 with Buy on VONA
P12DB-A P12DB-A B:NC 0.5μm 10×18×23 3mm IP67 without Buy on VONA
P12DB-AL B:NC 0.5μm 10×18×23 3mm IP67 with Buy on VONA
P12DLB-A P12DLB-A B:NC 0.5μm 10×18×39 10mm IP67 without Buy on VONA
P12DLB-AL B:NC 0.5μm 10×18×39 10mm IP67 with Buy on VONA
P085DB-A P085DB-A B:NC 0.5μm M8×0.5 3mm IP67 without Buy on VONA
P085DB-AL P085DB-AL B:NC 0.5μm M8×0.5 3mm IP67 with Buy on VONA Buy on
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P08SB-A P08SB-A B:NC 0.5μm φ8 3mm IP67 without Buy on VONA
P08SB-AL B:NC 0.5μm φ8 3mm IP67 with Buy on VONA

Contact probe NOT included
*Please prepare measuring contact probe sold separately.

PN Output mode Repeatability Outer Stroke IP code / protective structure LED Price Download
P10DHA-T P10DHA-T A:NO 0.5μm M14×0.5 3mm IP67 without
P10DHA-TL A:NO 0.5μm M14×0.5 3mm IP67 with
P10DHB-T P10DHB-T B:NC 0.5μm M14×0.5 3mm IP67 without
P10DHB-TL B:NC 0.5μm M14×0.5 3mm IP67 with
P10DHLTB-T P10DHLTB-T B:NC 0.5μm M14×0.5 10mm IP67 without
P10DHLTB-TL B:NC 0.5μm M14×0.5 10mm IP67 with
P10SHA-T P10SHA-T A:NO 0.5μm φ14 3mm IP67 without
P10SHA-TL A:NO 0.5μm φ14 3mm IP67 with
P10SHB-T P10SHB-T B:NC 0.5μm φ14 3mm IP67 without
P10SHB-TL B:NC 0.5μm φ14 3mm IP67 with

Flat type / For straight-on touch application

PN Output mode Repeatability Outer Stroke IP code / protective structure LED Price Download
P11DDB-DU P11DDB-DU B:NC 0.5μm dimension 3mm IP67 without Buy on VONA
P11DDB-DULD P11DDB-DULD B:NC 0.5μm dimension 3mm IP67 with Buy on VONA Buy on
AutomationDirect
P11DMB-DU P11DMB-DU B:NC 0.5μm dimension 3mm IP67 without Buy on VONA
P11DMB-DULD P11DMB-DULD B:NC 0.5μm dimension 3mm IP67 with Buy on VONA
P11EDB-DU P11EDB-DU B:NC 0.5μm dimension 5mm IP67 without Buy on VONA
P11EDB-DULD P11EDB-DULD B:NC 0.5μm dimension 5mm IP67 with Buy on VONA Buy on
AutomationDirect
P11EMB-DU P11EMB-DU B:NC 0.5μm dimension 5mm IP67 without Buy on VONA
P11EMB-DULD P11EMB-DULD B:NC 0.5μm dimension 5mm IP67 with Buy on VONA

Main Specifications

Repeatability  0.5μm（Range）
Contact Force  1Ｎ - 1.5Ｎ
Outer diameter　※除外　 8 - 14mm
Overall length ※除外　 38 - 84mm
How to touch the objects Straight-on touch / Angled-touch
Stroke  3mm - 10ｍｍ
Protective structure IP67
Operating temperature range 0 - 80℃
Switch Structure Dry contact
Output mode A : NO ／ B : NC
Pretravel 0 - 0.2ｍｍ
Movement differential 0
Contact life time 3 million (No bungle caused by vibration and use under contracting rating)
Contact material Cemented carbide
Case material SUS303/ BsBM+Ni plating /A2017
Cable Standard length ３ｍ　Oil resistant φ５ / 2 cores　Tensile strength３０N
※Only P08 series: φ4 / 2 cores Minimum bending R7
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.
Standard accessory Two fixing nuts for threaded type
Note: *Operating speed slower than 10mm/min is NOT recommended.

Applications: (Examples)

Prevention of doubling of thin sheet metal

Prevention of doubling of thin sheet metal

Detects two pieces of 0.5 mm thick sheet metal at 1/10 the price of a contact-type displacement sensor

Origin setting for semiconductor inspection table

Origin setting for semiconductor inspection table

Correction of thermal displacement of XY-axis table in microns

Compensation of thermal displacement of tabletop robots

Compensation of thermal displacement of tabletop robots

Compensates for thermal displacement of the robot's Z-axis in microns

Printing machine drum misalignment detection

Printing machine drum misalignment detection

Stabilized detection of misalignment of each CMYK drum in microns

Grinding wheel wear detection

Grinding wheel wear detection

Compensates for wear of grinding machine wheels in adverse environments with an accuracy of 0.5 μm.

Pulse motor drive origin setting

Pulse motor drive origin setting

Originating the drive unit, the performance comparable to a servo motor.

Comparison with other blands

METROL's
High-precision MT-Touch Switch		 Contact digital sensor Laser sensor
Switch structure Contact type
(precision instrument) 		Contact type
(electricity) 		Non-contact type
(light)
Repeatability ✔ 0.5μm ✔ 1μm ✔ 1μm
Movement differential ✔ None x Occur
Temperature drift / Influence on external environment ✔ Not affected
(No master conformity is needed) 		x Affected by the change in external environment or self-generation.
(Require frequent conformity to the master)
Affects on objects by the reflection rate / roughness / adhesion of Water drops ✔ Not affected ✔ Not affected x Affected
Protective structure ✔ IP67
(Resistant to harsh environments with coolant oil or metal cuttings.) 		✔ IP67
(Unsuitable for an environment where coolant or cutting chips splatter.)
Contact life time 3 million times 10 million times None
(Many elements damaged due to overcurrent)
Numeral display x No display
(ON / OFF signals) 		✔ Display
(Many of the automated in-lines need no number display)

Disadvantages of Contact Type

  • 　Liquids, soft workpieces, and other objects that are not touchable cannot be detected.
  • 　Takt time (TT) may be longer because of the time required to contact the workpiece.
  • 　Since the detection is made by making contact with the workpiece, the measuring range is shorter than the non-contact type sensors.

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