Ultra-small Precision Positioning Switch [PT]
The world’s smallest!
M5 x 17 mm
The world’s smallest Precision positioning switches.
These switches make it possible to downsize machines by installing directly to semi-conductor manufacturing / automotive manufacturing / metal mold / medical equipment.
Reasons to choose Ultra-small Precision Positioning Switch
Downsize machines with the world’s smallest switches!
The world’s smallest M5 x 17 mm Precision positioning switches.
Used for origin detection in various industrial machines and medical machines such as CNC machine tools, semiconductor production equipments, microscopes for neurosurgery and disc brakes.
1μm repeatability, 3 million contact life time!
The precision positioning switch using no amp does not cause signal point drift due to external environment or self-generation and can output stable high precision signals.
This ultra small switches endure 3 million times operation mechanically and electrically.
Product list
Repeatability : 1μm type
| Product No. | Output | IP | Size | LED | Order | Download | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Worldwide | ||||||||||
 |
PT5M1WB | B：NC | IP40 | M5 | – | SHOP NOW |
Catalog (PDF) |
2D CAD
|
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| PT5M1WB-L | with | |||||||||
 |
PT5S1WB | φ5 | – | |||||||
| PT5S1WB-L | with | |||||||||
 |
PT5M1CB | M5 | – | |||||||
| PT5M1CB-L | with | |||||||||
 |
PT5S1CB | φ5 | – | |||||||
| PT5S1CB-L | with | |||||||||
 |
PTP5M1CB | IP67 | M5 | – | ||||||
| PTP5M1CB-L | with | |||||||||
 |
PTP5S1CB | φ5 | – | |||||||
| PTP5S1CB-L | with | |||||||||
 |
PT5M1WA | A：NO | IP40 | M5 | – | |||||
| PT5M1WA-L | with | |||||||||
 |
PT5S1WA | φ5 | – | |||||||
| PT5S1WA-L | with | |||||||||
Repeatability : 3μm type
| Product No. | Output | IP | Size | LED | Order | Download | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Worldwide | USA | ||||||||||
 |
PT5M3WB | B：NC | IP40 | M5 | – | SHOP NOW |
 |
Catalog (PDF) |
2D CAD
|
||
 |
PT5S3WB | φ5 | – | ||||||||
 |
PT5M3CB | M5 | – | ||||||||
| PT5M3CB-L | with | ||||||||||
 |
PT5S3CB | φ5 | – | ||||||||
| PT5S3CB-L | with | ||||||||||
 |
PTP5M3CB | IP67 | M5 | – | |||||||
| PTP5M3CB-L | with | ||||||||||
 |
PTP5S3CB | φ5 | – | ||||||||
| PTP5S3CB-L | with | ||||||||||
 |
PT5M3WA | A：NO | IP40 | M5 | – | ||||||
 |
PT5S3WA | φ5 | – | ||||||||
Electrical specification ｜ Options / Precautions｜ Technical guide
Specification
| Switch structure | Dry contact |
|---|---|
| Repeatability | 1μm type : 0.001mm 3μm type : 0.003mm |
| Pretravel | Approximately 0.3mm (A : NO) / No pretravel (B : NC) |
| Stroke | 1.5mm |
| Movement differential | 0 |
| Contact life time | 3 million |
| Contact force | IP40：0.5N IP67：0.8N |
| Temperature drift | 0 |
| Operating temperature range | 0℃-80℃ (Ice-free) →10-5Pa Vacuum-resistant Switches |
| Contact rating | DC5V-DC24V |
Metrol VS Competitor
| Metrol’s Ultra Small Size Positioning Switches | Proximity sensor / Photo sensor | Laser sensor | Contact displacement sensor | |
|---|---|---|---|---|
| Switch structure | Contact type (precision machines) |
Non-contact type (magnetism / light) | Non-contact type (light) | Contact type (electricity) |
| Repeatability |  1μm |
 10μm〜 |
1μm |
|
| Movement differential | None |
Occur |
||
| Temperature drift/Influence on external environment | Not affected (No master conformity is needed) |
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 |
Affected |
Not affected |
|
| Contact life time | 3 million times | None (Many elements damaged due to overcurrent) |
10 million times | |
| Numeral display | No display (ON / OFF signals) |
No display (ON / OFF signals) |
Display (Many of the automated in-lines need no number display) |
|
Disadvantages of contact type
- Untouchable objects such as liquid or soft objects cannot be detected.
- The takt time might be longer because a switch takes time to touch a workpiece.
- Measuring range gets narrower compared to non-contact type due to detection by touching workpieces.
[Metrol’s switches]
- The high repeatability and precision positioning switches under harsh working conditions where coolant or cutting chips splatter. →High-precision Positioning Switch [MT]
- Low cost switches for applications, the precision positioning not requiring high accuracy. →Positioning Switch [CS]
Applications
The starting point of the inspection table for semiconductors
Correction of thermal displacements of the X- and Y-axes of the table by micron increment.
Detection of height of the nozzle of the dispenser
Correction of the Z-axis of a desktop soldering robot by micron increment.
Prevention of double feeding thin metal sheets
Detection of double feeding of 0.5 mm thickness of metal sheets at 1/10 price of contact-type displacement sensors.
Open-Close confirmation of the brake friction pad
Stable detection of 0.5 mm or less of slight movement.
Detecting the starting point of a stteper motor
The starting point of the driving parts realizes high performance like a servo motor.
Detection of gaps in the printing machine drums
Stable detection of gaps the CMYK drums by micron increment.
Related Article
[ Product Story ]One day, a customer demanded a switch like this.・Switch diameter M5 and the length should be less…
Posted by Metrol Tool Setter (for CNC Machine) on 2015年12月13日
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