Gefran sensor Wood Industry

Gefran is supply by Jon&Jul Automation Vietnam.

Gefran sensor Wood Industry Position transducer for wood sanding machine

The LT and PYI position transducer controls the position of the working table with a repeatability of between 0.2 and 0.3 mm in sanding machines by managing:

• the position of the table according to the thickness because the dimension is displayed on an indicator;
• the position of the belt rollers, displaying the different dimensions on an operator panel with the support of a PLC.

Gefran sensor Wood Industry Position sensors/ Potentiometers/ LT With shaft

• The transducer has been improved in order to guarantee greater reliability under all conditions
• A sturdier structure makes the LT series even stronger for applications with heavy vibration
• Installation is made simpler by the absence of electrical signal variation in output, outside the Theoretical Electrical Stroke
• The new grooves provide an excellent alternative to the usual system of fastening with brackets
• Ideal for applications on plastic injection presses, vertical presses, and on many other processing machines

Gefran sensor Wood Industry Position sensors/ Potentiometers/ PY1 Touch version

• 25 to 150 mm stroke
• Mechanical linkage using joint with take up of play, M4 thread
• Independent linearity up to ± 0.05%
• Infinite resolution
• No variation of electrical signal outside theoretical electrical stroke
• Displacement speed up to 10 m/s
• Working temperature: -30…+100°C
• Electrical connections:
• PY1 F 3 wire 1m screened cable
• PY1 C 5-pole connectors DIN43322
• Life duration: > 100×106 operations (within C.E.U.)
• Double support of the control rod
• Grade of protection IP40

Gefran sensor Wood Industry Magnetostrictive transducer for cylinder and blade positions in sawmills

The sawmill machine is the sawing or cutting system thatturns round log into square timbers.

WRA-S controls the cylinder position and WPA-S the blade position with a resolution of 0.05 µm

The HYPERWAVE WRA-S and WPA-S magnetostrictive transducers allow to control cylinders and blades in sawmills by:

• aligning the log;
• providing the exact position of the band saw with an absolute and precise signal: linearity ≤±0.01%/FS;
• ensuring high resistance to vibrations;
• guaranteeing IP67 degree of protection avoiding dust damage at the end of the cut.

Gefran sensor Wood Industry Position sensors/ Magnetostrictives /WRA-S Advanced Contactless - Magnetostrictive - ROD Thread AISI 316 - SSI digital output –

• Optimized mechanical structure
• Strokes from 50 to 4000 mm
• Wide range of connectors for the electrical connection
• Rod, nipple, exagonal flange AISI 316
• Power supply 10….32 Vdc
• Resistance to vibration (DIN IEC68T2/6 15g)
• Protection IP67
• Work temperature: -30°…+90°C
• Synchronous Serial Interface direct to controllers
• Output data resolution available from 0.5 to 40μm
• Data format: binary or Gray code; incremental/decremental
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU

Gefran sensor Wood Industry Position sensors/ Magnetostrictives/ WPA-S Advanced Contactless - Magnetostrictive - Aluminum Profile - SSI Digital Outputs –

• Optimised mechanical structure
• Strokes from 50 to 4000 mm
• Fast installation by mean of steel brackets
• Sliding or floating magnetic cursor
• Synchronous Serial Interface direct to controllers
• Output data resolution available from 0.5 to 40 μm
• Data format: binary or Gray code; incremental/
• decremental
• Power supply 10…32 Vdc
• Resistance to vibration (DIN IEC68T2/6 15g)
• IP67 protection
• Work temperature: -30…+90°C
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU

Gefran sensor Wood Industry Magnetostrictive transducer for log splitter control

The splitting log machinery includes equipment used for splitting firewood from softwood or hardwood logs. Many log splitters consist of a hydraulic or electrical rod and piston assembly and these are often rated by the tons of force.

In the hydraulic machinery, a log splitter either uses a hydraulic piston to drive the log through a stationary blade or a rotating cone shaped screw mandrel that pulls the log up over the edge. The higher the force rating, the greater the thickness or length of the log that can be split.

The hydraulic log splitter consists of three hydraulic actuators that move all the process phases.

The HYPERWAVE WRP-A and WPP-A magnetostrictive transducers allow to control the position of cylinders and the feeding system with a linearity error ≤±0,02%/FS thanks to:

• absolute and precise signal: ≤±0,02%/FS linearity error;
• high reliability (theoretically infinite);
• IP67 environmental protection rating;
• high vibration resistance: 15g/10…2000Hz (DIN IEC68T2-6).

Gefran sensor Wood Industry Position sensors / Magnetostrictives / WRP-A Plus Contactless - Magnetostrictive - ROD Thread AISI 316 - Analogues Outputs –

• Optimized mechanical structure
• Strokes from 50 to 2500 mm
• Wide range of connectors for the electrical connection
• Rod, nipple, exagonal flange AISI 316
• Work temperature: -30°…+75°C
• Resistance to vibrations (DIN IEC68T2/6 12g)
• Power supply 24Vdc ± 20%
• Protection IP67
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU

Gefran sensor Wood Industry Position sensors/ Magnetostrictives/ WPP-A Plus Contactless - Magnetostrictive - Aluminum Profile - Analogues Outputs –

• Optimised mechanical structure
• Strokes from 50 to 2500 mm
• Sliding or floating magnetic cursor
• Availability of several analogue outputs (voltage or current)  for direct position and speed measurement or reverse  measurement (only position)
• Single or double cursors models availability
• Power supply 24Vdc ±20%
• Resistance to vibration (DIN IEC68T2/6 12g)
• IP67 protection
• Work temperature: -30…+75°C
• Electromagnetic compatibility EMC 2014/30/EU
• Compliant to the directive RoHS 2011/65/EU

For more Gefran products, please click here

Click here to for see more Gefran application: 

1. Gefran sensor in Plastic Industry
2. Gefran sensor in Metal Industry

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Please feel free to contact me:

Ms. Trinh

Hotline: 094.103.5500

Email:  trinh@jon-jul.com