Hongnuo (shenyang) General Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of hydraulic cylinder linear position sensor in China. Welcome to buy high quality hydraulic cylinder linear position sensor at competitive price from our factory. We also accept customized orders.

The HNL80-A hydraulic cylinder linear position sensor is an industrial-grade magnetostrictive device engineered for high-precision position measurement in hydraulic systems, ideal for shield tunneling equipment, marine engineering, wind power, and metallurgical coking applications. Designed for built-in cylinder installation, this sensor delivers absolute position output (no zero reset required) and non-contact measurement, ensuring zero wear and long-term reliability in harsh operating conditions.

Crafted with 304L stainless steel sensor head and pressure-resistant outer tube, paired with Viton75 fluoroelastomer seals, it boasts exceptional durability-withstanding pressures up to 53MPa (peak) and temperatures ranging from -40℃ to 105℃ (high-temperature model). It offers ultra-high precision: <±0.01% F.S. nonlinearity, <±0.001% F.S. repeatability, and 16-bit D/A resolution (up to 0.5μm), complemented by fast update times (>1ms) for real-time data transmission.

Versatile in configuration, the sensor supports multiple signal outputs (4-20mA, 0-10V, SSI, Profibus-DP, CANbus) and flexible installation (M18x1.5/M20x1.5 threads, various rod diameters and magnet sizes). Its split design allows easy replacement of the electronic compartment without relieving cylinder pressure, while the compact, flexible core adapts to narrow spaces. With IP67/IP68 protection rating, explosion-proof certification, and resistance to vibration (15g) and shock (100g), it meets strict EMC and industrial standards.

The HNL80-A hydraulic cylinder linear position sensor integrates dual-channel output (position + speed) and dual-color LED status indication for easy diagnostics. Whether for heavy-duty hydraulic systems or precision industrial machinery, it delivers consistent, maintenance-free performance-making it a trusted choice for businesses seeking explosion-proof, high-precision position control in critical applications.

HNL80-A Magnetostrictive Linear Displacement Sensor Parameters
Specific Parameters	Value / Description
Measurement Principle	The HNL80-A magnetostrictive linear displacement sensor is a core device in hydraulic systems for precise piston position detection. Based on the magnetostrictive effect, it achieves non-contact absolute displacement measurement through an "electric-magnetic-acoustic-electric" signal conversion. Its working process is as follows: The electronic head emits current pulses to the waveguide wire to generate a circular magnetic field. When this magnetic field encounters the axial magnetic field of the permanent magnet on the piston, it triggers the waveguide wire to generate an ultrasonic torsional wave. The system calculates the precise piston displacement by measuring the time difference between the current pulse emission and the received ultrasonic echo, combined with the ultrasonic wave propagation speed. This sensor features non-contact operation, wear-free operation, long lifespan, and contamination resistance. It supports micron-level high-precision measurement and absolute position output, is suitable for the pressure-resistant and oil-resistant working environments of hydraulic cylinders, and is widely used in hydraulic systems requiring precise displacement feedback, such as those in engineering machinery and metallurgical equipment.
Measuring Medium	Mineral oil-based hydraulic fluids, synthetic hydraulic fluids, water-glycol/phosphate ester fire-resistant hydraulic fluids, emulsions, and other types of hydraulic working media.
Electronic Warehouse Length	68mm,78mm,48mm (Explosion-proof)
Measurement Range	25~7620mm,50~2500mm (Explosion-proof type)
Mounting Threads	M18x1.5 ,M20x1.5 ,3/4″-16UNF-3A
Magnetic Ring Outer Diameter	OD17.4,OD25.4,OD33,OD63.5
Measuring Rod Diameter	7mm, 8mm ,10mm ,12mm
Material	304L Stainless Steel
Outputs	4~20mA, 0~10V, etc.
Power Supply	24VDC
Protection Level	IP67 (standard model), IP68 (custom model)
Operating Temperature	-40℃-85℃ (standard), -40℃-105℃ (temperature resistant type)
Certificate	CE certified
Ordering Information	-

Hot Tags: hydraulic cylinder linear position sensor, China hydraulic cylinder linear position sensor manufacturers, suppliers, factory

Hydraulic Cylinder Linear Position Sensor