BCW Series — Industrial Waterproof
The BCW series features large-size threaded contact positioning switches with M8 or M10 precision thread mounting. With IP67 ingress protection, they operate reliably in coolant splash and humid environments. The tungsten carbide contact tip has a hardness of HRA 90.5 for long-term wear resistance, suitable for CNC machining centers, automated production lines, and other demanding conditions.
BCW-M8 / BCWB-M8
- Mounting thread: M8×0.5, compatible with common fixtures and holders
- Contact head diameter: ø3mm Tungsten Carbide, small contact area for precision positioning
- BCW-M8: Standard straight body design
- BCWB-M8: L-shaped angled body, suitable for side mounting and tight spaces
BCW-M10 / BCWB-M10
- Mounting thread: M10×1.0, secure locking in heavy-duty fixtures
- Contact head diameter: ø5mm Tungsten Carbide, larger contact area for rough positioning applications
- BCW-M10: Standard straight body, mounting length 34.8mm
- BCWB-M10: L-shaped angled body, mounting length 35.5mm
BCW Series Specifications
| Specification Item | BCW-M8 / BCWB-M8 | BCW-M10 / BCWB-M10 |
|---|---|---|
| Mounting Thread | M8×0.5 | M10×1.0 |
| Contact Head Diameter | ø3mm | ø5mm |
| Contact Head Material | Tungsten Carbide HRA 90.5 | |
| Body Material | SUS303 Stainless Steel | |
| Contact Force | 0.8N | |
| Pre-travel | 1.5mm | |
| Repeatability (C type) | 0.001mm | 0.001mm |
| Repeatability (NC type) | 0.003mm | 0.003mm |
| Signal Voltage | DC 5V–24V | |
| Steady Current | Below 10mA (Peak below 20mA) | |
| Signal Output | B:NC (Normally Closed Contact) | |
| Ingress Protection Rating | IP67 (IP6X complete dust protection + IPX7 1m depth 30 min) | |
| Cable Length | Standard 2M / Optional 3M, 6M | |
| LED Indicator | Optional (No LED / Green LED) | |
| Standard Body Length | 34.8mm | 34.8mm |
| L-Type Body Length | 35.5mm (BCWB-M8) | 35.5mm (BCWB-M10) |
BCS Series — Compact & Economical
The BCS series features small-size straight rod contact positioning switches that are compact and highly responsive, suitable for equipment with limited installation space. While not waterproof, they deliver the same high-precision positioning performance as the BCW series in dry environments — an economical and efficient choice.
BCS Straight Rod Type
- Straight rod design, easy to install with minimal footprint
- SUS303 stainless steel body, tungsten carbide contact
- Repeatability 0.001mm
- Suitable for instrument equipment positioning, optical inspection platforms, automation modules, and other dry environments
- More economical compared to BCW series, ideal for large-scale deployment
BCS Series Specifications
| Specification Item | BCS Value |
|---|---|
| Form Factor | Straight Rod Type |
| Contact Head Material | Tungsten Carbide HRA 90.5 |
| Body Material | SUS303 Stainless Steel |
| Repeatability | 0.001mm |
| Ingress Protection | None (Recommended for dry environments) |
| Signal Voltage | DC 5V–24V |
| Signal Output | B:NC (Normally Closed Contact) |
| Suitable Environments | Instrument equipment, inspection platforms, automation modules |
Technical Advantages
Contact positioning switches detect position through physical contact. Unlike non-contact sensors (photoelectric, magnetic induction), they are unaffected by workpiece material, color, transparency, surface roughness, or ambient light — delivering more stable and reliable signal output.
0.001mm Repeatability
Type C achieves stable repeatability within 0.001mm on every contact, ensuring consistency and reliability in automated production lines.
Unaffected by Workpiece Material
Contact sensing is unaffected by workpiece color, transparency, surface roughness, magnetic field interference, and other factors — simple and reliable signal output.
Tungsten Carbide Contact · Long-Lasting Durability
Contact tip made of tungsten carbide with a hardness of HRA 90.5, excellent wear resistance, service life of over 10 million cycles.
Contact vs. Non-Contact Positioning Sensors
| Comparison Item | Contact Positioning Switch | Non-Contact (Photoelectric / Magnetic) |
|---|---|---|
| Sensing Principle | Physical contact trigger | Light reflection / Magnetic field change |
| Workpiece Material Effect | Unaffected | Affected by color, transparency, material |
| Ambient Light Effect | Unaffected | May be affected by strong light or infrared interference |
| Signal Accuracy | 0.001mm repeatability | Significantly affected by distance and angle |
| Liquid / Oil Environment | BCW series IP67 waterproof, operates normally | Lens contamination causes failure |
| Installation & Calibration | Mechanical contact point, intuitive and simple setup | Requires calibration of sensing distance and sensitivity |
| Service Life | Over 10 million cycles | No mechanical wear, but electronic components may degrade |
| Cost | Economical and affordable | Generally higher |
Catalog & Download
Download the BCW / BCS series contact positioning switch catalog