Overview
AKUSENSE MR series magnetic cylinder sensors detect the piston position of pneumatic cylinders through magnetic sensing, providing reliable end-position and stroke detection for automated machinery. Available in T-Type, C-Type and U-Type designs to fit different cylinder grooves, the series covers N-pole / S-pole sensing versions (MR-C6 / MR-C8) and dual-pole N+S sensing versions (MR-C81 / MR-C86 / MR-C80 / MR-70). With ultra-fast response down to 5μs, IP67 enclosure rating, wide operating voltage and built-in circuit protection, they deliver stable, precise and durable performance in industrial automation applications. NPN output, normally-open operation and oil-resistant PUR cable options are available across the range.
Key Features
- Magnetic Piston Detection — reliable cylinder piston position sensing for end-position and stroke control
- 3 Groove Designs — T-Type, C-Type and U-Type housings fit different cylinder groove profiles
- N / S Pole Sensing Options — MR-C6 and MR-C8 series available in N-pole and S-pole versions
- Dual-Pole N+S Sensing — MR-C81 / C86 / C80 / MR-70 detect both N and S poles for wider compatibility
- Ultra-Fast Response — 5μs response time for high-speed cylinder operation
- Wide Operating Voltage — 5~24V DC (MR-C6 / C8) and 10~30V DC (2-wire models)
- IP67 Enclosure Rating — dust-proof and water-jet resistant for harsh environments
- Oil-Resistant PUR Cable — 2-wire models with oil-resistant PUR cable for machine tool applications
- Red LED Indicator — clear on-site output status display
- Built-in Circuit Protection — reverse polarity / short-circuit / surge protection
Technical Specifications
| Parameter | Specification |
|---|---|
| Working Principle | Magnetic sensor |
| Sensing Method | Electronic |
| Operation Mode | Normally Open |
| Output Mode | NPN (MR-C6 / MR-C8); 2-wire switch (MR-C81 / C86 / C80 / MR-70) |
| Sensing Pole | N-pole / S-pole (MR-C6 / C8); N-pole + S-pole (2-wire models) |
| Magnetic Sensitivity | 2.5~3.5mT (MR-C6); 4.5~6.0mT (MR-C8); 2.5~100mT (2-wire models) |
| Response Time | 5μs (MR-C6 / C8); 50μs (2-wire models) |
| Operating Voltage | 5~24V DC (MR-C6 / C8); 10~30V DC (2-wire models) |
| Output Current | ≤12mA (MR-C6 / C8); ≤100mA (2-wire models) |
| No Load Current | ≤12mA (MR-C6 / C8); ≤6μA (2-wire models) |
| Operating Temperature | -20℃ ~ 85℃ (MR-C6 / C8); -10℃ ~ 70℃ (2-wire models) |
| Operating Humidity | 30% ~ 95% RH (No Condensation) |
| Housing Material | PBT (MR-C6 / C8); PC (2-wire models) |
| Design | T-Type (MR-C6); C-Type (MR-C8, MR-C81, MR-C86); U-Type (MR-C80, MR-70) |
| Weight | Approx. 14.4g / 11.3g / 19.5g / 23.5g (by model) |
| Connection | 1m / 3-wire cable (MR-C6 / C8); 1m / 2-wire oil-resistant PUR cable (2-wire models) |
| Enclosure Rating | IP67 |
| Vibration Resistance | 10~55Hz, 1.5mm double amplitude, 1h per axis (X/Y/Z) |
| Dielectric Strength | 1000V AC at 50/60Hz for 1 min |
| Insulation Resistance | ≥20MΩ / 250V DC |
| Protection Circuit | Reverse polarity / Short-circuit (MR-C6 / C8); Surge (2-wire models) |
Model Selection Table
| Model | Design | Output | Sensing Pole | Response | Voltage | Cable |
|---|---|---|---|---|---|---|
| MR-C6-N | T-Type | NPN, N.O. | N-pole | 5μs | 5~24V DC | 1m/3-wire |
| MR-C6-S | T-Type | NPN, N.O. | S-pole | 5μs | 5~24V DC | 1m/3-wire |
| MR-C8-C-N | C-Type | NPN, N.O. | N-pole | 5μs | 5~24V DC | 1m/3-wire |
| MR-C8-C-S | C-Type | NPN, N.O. | S-pole | 5μs | 5~24V DC | 1m/3-wire |
| MR-C81 | C-Type | 2-wire | N + S | 50μs | 10~30V DC | 1m/2-wire PUR |
| MR-C86 | C-Type | 2-wire | N + S | 50μs | 10~30V DC | 1m/2-wire PUR |
| MR-C80 | U-Type | 2-wire | N + S | 50μs | 10~30V DC | 1m/2-wire PUR |
| MR-70 | U-Type | 2-wire | N + S | 50μs | 10~30V DC | 1m/2-wire PUR |
*Indicator: Red LED (all models)
Applications
- Pneumatic cylinder end-position detection
- Cylinder stroke position sensing in automated assembly machines
- Piston position feedback for pick-and-place and clamping units
- Packaging, filling and material handling automation
- Machine tool fixture and clamp position monitoring
- General industrial automation position control
How to Select
- Select groove design by cylinder type
T-Type (MR-C6) for T-groove cylinders; C-Type (MR-C8 / C81 / C86) for C-groove cylinders; U-Type (MR-C80 / MR-70) for U-groove cylinders. - Select sensing pole by magnet polarity
N-pole (N suffix) or S-pole (S suffix) for MR-C6 / C8; dual N+S pole for 2-wire models. - Select output by control system
NPN output with normally-open operation for MR-C6 / C8; 2-wire switch for MR-C81 / C86 / C80 / MR-70.
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