Linear position transducer RK-5

contactlessmagnetostrictiveanalog

Overview
Magnetostrictive, contactless linear position transducer using GEFRAN ONDA technology. Designed for installation fully inside oil-pressure/hydraulic cylinders with a flanged rod (AISI 316). Contactless cursor eliminates mechanical wear and ensures long service life. Available with analog outputs in direct or inverse configurations.

Main features

• Absolute position transducer (contactless, magnetostrictive)
• Flanged rod (AISI 316) for integration into hydraulic cylinders
• Stroke range: 50 to 2500 mm
• Direct analog output: RK-5 N / K / E
• Inverse analog output: RK-5 O / I / R
• Analog signal available as current or voltage depending on model

Performance and environments
Operating temperature: -40 °C to +105 °C. Working pressures up to 350 bar. High resistance to vibration (25 g, DIN IEC68T2/6) and shock (100 g), suitable for heavy-duty and mobile hydraulic applications. Excellent linearity, low hysteresis and good repeatability ensure reliable position feedback.

Technology and mechanical design
GEFRAN ONDA magnetostrictive technology provides a compact, modular structure and a contactless cursor to eliminate wear. Flanged rod design allows full installation within oil-pressure cylinders and supports multiple cursor configurations to match cylinder manufacturer specifications.

Electrical and power
Current output models: recommended supply 10 VDC … 32 VDC. Voltage output models: recommended supply 8 VDC … 32 VDC. Output polarity and wiring depend on model reference.

Applications

• Mobile hydraulics (construction, agricultural and lifting machinery)
• Heavy-duty hydraulic cylinders and industrial hydraulics
• Systems requiring durable, contactless absolute linear measurement under vibration/shock and high pressure

Technical specifications

• Technology: GEFRAN ONDA magnetostrictive (contactless)
• Transducer type: Absolute
• Mechanical form: Flanged rod (AISI 316) for cylinder integration
• Stroke options: 50 mm to 2500 mm
• Outputs: Direct analog (RK-5 N/K/E); Inverse analog (RK-5 O/I/R)
• Operating temperature: -40 °C to +105 °C
• Working pressure: up to 350 bar
• Vibration resistance: 25 g (DIN IEC68T2/6)
• Shock resistance: 100 g
• Power supply (current output): 10 VDC … 32 VDC
• Power supply (voltage output): 8 VDC … 32 VDC
• Performance: high linearity, low hysteresis, good repeatability
• Typical uses: mobile hydraulics, heavy-duty hydraulic cylinders, industrial systems requiring long-life contactless measurement