Overview
The Turck BI8-M18-RP6X-H1141 inductive proximity sensor is a compact M18 cylindrical design engineered for reliable metal detection in automated manufacturing and control systems. Operating with contactless, wear-free sensing via a high-frequency electromagnetic field, this sensor offers dependable performance in demanding industrial environments. Its 8 mm rated switching distance and flush-mounting capability make it ideal for positioning, part placement, and robotic automation applications.
Key Features
- 8 mm switching distance with increased detection range for stable target positioning
- PNP, normally-open (NO) output compatible with standard DC control circuits
- M18 x 1 threaded barrel with chrome-plated metal housing for corrosion resistance
- IP67 protection rating seals against dust and moisture in harsh conditions
- Operating range: 10–30 VDC, 200 mA load current
- Temperature rated: –25°C to +70°C, with ≤±10% temperature drift
- M12 × 1 connector for quick disconnection and field replacement
- LED indicator provides visual confirmation of switching state (yellow)
Technical Specifications
- Sensing Principle: Inductive (high-frequency electromagnetic field)
- Switching Distance (Sn): 8 mm
- Output Type: 3-wire, PNP, normally open
- Supply Voltage: 10–30 VDC
- Load Current (Max): 200 mA
- Voltage Drop (Max): 1.8 VDC at maximum load
- Repeat Accuracy: ≤2% of full scale
- Barrel Diameter: M18 × 1 (threaded)
- Housing Material: Metal (CuZn), chrome-plated
- Active Area Material: Plastic (PA12-GF30)
- Overall Length: 52 mm
- Connection: M12 × 1 male connector
- Protection Class: IP67 (dust and water resistant)
- Operating Temperature: –25°C to +70°C
- Storage Temperature: –25°C to +70°C
- Vibration Resistance: 55 Hz (1 mm)
- Shock Resistance: 30 g (11 ms)
- MTTF: 2283 years (per SN 29500)
Typical Applications
- Positioning and alignment control in transfer systems and automated workstations
- Parts counting and presence detection on production conveyors
- Robotic gripper feedback for tool and workpiece confirmation
- Metal part sorting and inspection in quality-control gates
- Limit switching for machine enclosure and safety interlocks
- Speed and motion detection in rotating machinery and slat conveyors
Compatibility & Replacements
Compatible With
- PLC systems and controllers with standard 10–30 VDC input modules
- DC motor drives and stepping motor controllers
- Industrial relays and proximity switch input cards
- Programmable logic controllers (Allen-Bradley, Siemens, Mitsubishi, Omron)
- Safety interlock circuits with PNP sensor support
- 24 VDC and 12 VDC control voltage supplies
Replaces / Drop-In Replacement For
The Turck BI8-M18 series sensors with equivalent M18 × 1 barrel, PNP output, and M12 connector can be considered functionally compatible. The RP6X connector variant is specific to this model. Verify connector pinout and supply voltage before field substitution.
Works With
- M12 × 1 male connector and eurofast wiring accessories
- Standard DC relay logic and hardwired control circuits
- PLC analog and discrete input modules (10–30 VDC compatible)
- Safety-rated control systems with PNP input validation
- Industrial automation networking protocols (EtherNet/IP, PROFINET, CANopen when paired with appropriate gateways)
