Balluff BMF001L Magnetic Cylinder Sensor

Balluff BMF001L (BMF103K-PS-C-2A-SA2-S49-0.03) Magnetic Cylinder Sensor

Balluff BMF series miniature magnetic cylinder sensors are specially designed for multi-groove cylinders. Adopting the non-contact magnetic field detection principle, they accurately detect the position of cylinder pistons. Compatible with T-slot, C-slot, round and trapezoidal groove cylinders, they are ideal for short-stroke cylinders and grippers.

1. Model Code Explanation

Model Correction Note:

There is confusion regarding the model “BMF001F-BMF103K-PS-C-2A-SA2-S49-0.03”. The correct correspondence is as follows:

BMF001F: Matches BMF103K-PS-C-2A-PU-03 (3m cable, no connector)

BMF001L: Matches BMF103K-PS-C-2A-SA2-S49-0.03 (0.3m cable + M8 connector)

2. Core Technical Specifications

3. Full Series Model List

BMF103K Series Main Models

4. Cross-Model & Cross-Brand Replacement

4.1 Replacement within Balluff Series

Direct Replacement: No direct equivalent for BMF001L; it is a dedicated model of 103K series with short M8 cable.

Functional Alternatives:

Long cable: BMF001E (2m), BMF001F (3m)

NPN output: BMF0011

Normally closed output: BMF0013

4.2 Cross-Brand Equivalents

4.3 Domestic Alternatives

Recommended Models: Autonics PSN17-5DN, SICK MHT15-N2317

Notes: Verify dimensions, output type and response time for domestic alternatives. Use original parts for critical applications.

5. Application Environments & Industry Cases

5.1 Applicable Scenarios

Pneumatic & Hydraulic Systems: Cylinder piston position detection, travel limit and position confirmation; compatible with cylinders from Festo, SMC, AirTAC and other mainstream brands.

Automation Production Lines: Cylinder position monitoring for robotic arms, injection molding machines and packaging equipment to prevent over-travel or under-travel.

Short-stroke Applications: Optimized response distance for cylinders and grippers with stroke less than 50mm.

Compact Spaces: Ultra-small size (9×4.8×16mm) for equipment with limited installation space.

Harsh Environments: IP67 protection for dusty, oily and humid industrial conditions.

5.2 Non-recommended Scenarios

Magnetic Cylinder Barrels: Unable to detect through carbon steel or other magnetic cylinder walls due to magnetic shielding.

Strong Magnetic Interference: Detection accuracy will be affected near large electromagnets and motors.

High Temperature Environments: Performance degradation or failure occurs above +85℃.

Prolonged Underwater Use: IP67 only resists temporary water immersion, not continuous underwater operation.

5.3 Typical Application Cases

Case 1: Automotive Component Assembly Line

Equipment: Robotic grippers, pneumatic pressing machines

Configuration: BMF001L + Festo ADN short-stroke cylinder + PLC control

Benefits: Precise detection of gripper open/close status; positioning repeatability up to ±0.1mm for pressing process; 20% increase in product yield.

Case 2: Food Packaging Machinery

Equipment: Blister packaging machines, carton forming machines

Configuration: BMF001L + SMC CQ2 cylinder + HMI touch screen

Benefits: Non-contact detection avoids food contamination; IP67 design adapts to wet cleaning environments; 50% longer maintenance interval.

6. Model Identification & Quick Reference Rules

Mnemonic Rules

BMF magnetic sensors widely apply,

103K mini fits most supply;

PS stands for PNP NO state,

NS means NPN open rate;

C for universal groove seen,

2A refers to 3-pin routine;

SA2 for M8 connector joint,

PU for long flying lead point;

S49 keeps anti-twist tight,

Suffix digits show cable height;

Check groove and output first you know,

Match connection before you go;

103K for mini cylinder frame,

303K suits long-stroke claim!

Quick Reference Rules

1. Model Composition: BMF + Series Code + Output Type + Groove Code + Interface + Connection + Cable Length
2. Output Definition: PS=PNP NO, NS=NPN NO, PO=PNP NC, NO=NPN NC
3. Connection Definition: SA2=M8 connector, PU=Flying lead; trailing number = cable length (m)
4. Mounting Tips: Clean the groove before installation; align sensor with piston magnet; tightening torque: 0.5~0.8Nm
5. Common Faults & Troubleshooting

8. Ordering Information

Official Order Number: BMF001L (Full model: BMF103K-PS-C-2A-SA2-S49-0.3)

Minimum Order Quantity: 1 piece

Package: Factory sealed package including sensor body and installation manual

Spare Parts Suggestion: Prepare 1 set of BMF001L for every 20 cylinders

Origin: Germany (Original Balluff product)

Full Application Classification of Balluff BMF Magnetic Sensors

BMF series are dedicated magnetic sensors for cylinders. They operate by detecting the built-in magnet on cylinder pistons. Featuring IP67 rating, compact size, oil resistance and flex resistance, they are widely compatible with T-slot, C-slot, round and trapezoidal groove cylinders. Below is the classification by industry, equipment and application scenarios, together with applicable model features.

1. General Basic Applications (Applicable to all BMF series)

Core Functions

1. Cylinder End Position Detection

The most common application: Detect fully extended and fully retracted positions of cylinders, send switching signals to PLC for interlocking and process triggering.

2. Multi-point Detection at Intermediate Positions

Install multiple sensors in series on long-stroke cylinders to realize mid-positioning, segmented movement and accurate station docking.

3. Operation Interlock & Safety Protection

Implement sequence interlock via sensor signals for multiple linked pneumatic mechanisms to prevent mechanical collision and misoperation.

4. Equipment Status Monitoring

Remote monitoring of cylinder operating status for alarm triggering, fault diagnosis and data collection.

General Working Conditions

Standard indoor automation lines, power distribution cabinets and pneumatic operation stations

Ordinary industrial environments with oil, dust and temporary water spray

2. Industry-specific Applications

2.1 Automotive Manufacturing (Largest consumption)

Body Welding Line: Position detection for welding fixture cylinders, positioning cylinders and clamping cylinders

General Assembly Line: Pneumatic grippers and lifting cylinders for doors, seats and interior parts assembly

Stamping Workshop: Feeding cylinders, mold clamping cylinders and slider limit switches

Features: High-frequency reciprocating motion and multiple linked cylinders. BMF103K miniature long-life models are recommended.

2.2 Packaging & Logistics Industry

Food & Daily Chemical Packaging: Cylinder limit for carton sealers, labelers, flow wrappers and heat-sealing equipment

Logistics Sorting: Deflector cylinders, diverter cylinders, transfer manipulators and hopper pusher cylinders

Palletizing & Depalletizing: Position feedback for gripper clamping, lifting and rotating cylinders

Features: Dense equipment and limited mounting space. Mini BMF models with M8 connectors are preferred.

2.3 Machine Tools & Metal Processing

Machining Centers: Pneumatic fixtures, chuck clamping, automatic door cylinders and tool magazine shifting cylinders

Grinding & Milling Machines: Workpiece positioning cylinders, dust removal units and safety door limit switches

Bending & Shearing Machines: Backgauge cylinders and hold-down cylinder position detection

Features: Heavy coolant and oil contamination. All BMF models with PUR cable and IP67 rating are fully applicable.

2.4 3C Electronics Industry

Mobile & Electronic Component Assembly: Position detection for miniature cylinders, precision grippers and slide cylinders

Dispensers, Soldering Machines & Test Jigs: Accurate positioning for ultra-short-stroke cylinders

Stop, transfer and lifting cylinders for assembly line carriers

Features: Extremely limited space and numerous short-stroke cylinders. BMF103K ultra-compact series is the first choice.

2.5 Rubber, Plastic & Injection Molding Industry

Injection Molding Machines: Ejector cylinders, core-pulling cylinders, safety doors and hopper door limit switches

Rubber Extrusion & Die-cutting Equipment: Position feedback for pressing cylinders and cutter cylinders

Features: Elevated ambient temperature and plastic fumes. Standard models (-25℃ ~ +85℃) are applicable.

2.6 Construction Machinery & Agricultural Equipment

Pneumatic doors, supports and gear-shift cylinders for construction machinery cabs

Pneumatic actuators for sowing, sorting and material conveying in agricultural machinery

Lift and flip cylinder limit for sanitation waste bins

2.7 Water Treatment & Environmental Protection Equipment

Pneumatic valve actuators: On/off position feedback for pneumatic butterfly valves and ball valves

Pneumatic units for sewage treatment screens, scrapers and chemical dosing systems

Detection for ash cleaning cylinders and baffle cylinders in dust removal equipment

2.8 Medical & Pharmaceutical Equipment

Pneumatic mechanisms for pharmaceutical filling, tableting and conveying

Pneumatic push rods, safety doors and fixtures for medical devices

Features: Dust-free and low-wear requirements. Non-contact magnetic design fully meets hygiene standards.

3. Applications by Cylinder Type (Selection Guide)
4. Small / Miniature Cylinders (Stroke ＜50mm)

Mini grippers, finger cylinders and miniature slide cylinders → BMF103K Series (e.g. BMF103K-PS-C-2A…)

2. Standard T-slot Cylinders (Mainstream FESTO & SMC)

Standard cylinders for general automation → BMF07K, BMF103K universal groove models

3. Round / Compact Cylinders

Robots and space-restricted equipment → Universal C-code sensors (all models with suffix `-C`)

4. Long-stroke Tie-rod Cylinders

Conveying, lifting and large push-pull mechanisms → Multiple BMF sensors in parallel for multi-point positioning

5. Rotary / Oscillating Cylinders

Rotation limit and angle positioning → Universal compatibility with BMF series

4. Inapplicable Scenarios (Precautions)
5. DC electromagnets and hydraulic cylinders: No built-in piston magnet for detection.
6. Carbon steel / magnetically conductive cylinder barrels: Magnetic field shielding causes signal failure.
7. Strong electromagnetic interference areas: Shielding measures required near large frequency converters and high-frequency welders.
8. Prolonged underwater immersion & high-pressure water jet: IP67 only resists temporary water exposure.
9. Ultra-high temperature environments: Performance fails above 85℃ (exceeds standard operating range).
10. Quick Selection Summary

Limited space & miniature cylinders → BMF103K Mini Series

General standard cylinders & mixed groove types → Universal groove models with suffix `-C`

Frequent on-site wiring & disconnection → Models with M8 connector (SA2)

Fixed wiring & long transmission distance → Flying lead models (PU)