PK Rodless rectilinear displacement transducers are based on potentiometric technology for every kind of linear displacement. The word potentiometer comes from potential, which refers to voltage potential, or difference. A potentiometer then is a device for measuring voltage difference.

In fact, a potentiometer is simply a resistor with a variable resistance value. Typically it is composed of a resistive material through which a current is passed. Unlike a static resistor, however, the point at which the current exits the resistive material is variable. Most often this is done by using a brush, which makes electrical contact with the resistive material, and which can be moved using a handle.

By moving the brush, the voltage potential being measured can be modified. For these sensors the rod is the brush and the further it is pulled the higher the reading. These Gefran sensors are drop in replacements for other popular brands, such as Novotechnik. For any questions, give our sales team a call.

  • The transducer has been improved in order to guarantee greater reliability under all conditions
  • Mechanical linkage using joint with take up of play, M5 thread
  • 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
  • Grade of protection IP40

Gefran PK Series Features

Enhanced transducer for reliable performance in all conditions. Mechanical linkage with play adjustment, M5 thread. Simplified installation with consistent output signal. New grooves offer an excellent alternative to brackets. Suitable for plastic injection presses, vertical presses, and other processing machines. IP40 protection rating.

Gefran PK Series Specifications

Useful electrical stroke
(C.E.U.) + 3 / -0
Theoretical electrical stroke (C.E.T.) ± 1mm103133153178204229254279305355365406458509559611
Resistance (C.E.T.)55555555510101010101010
Mechanical stroke (C.M.)mm113143163188214239264289315365375416468519569621
Case length (A)mm253283303328354379404429455505515556508659684761
Useful electrical stroke
(C.E.U.) + 3 / -0
Theoretical electrical stroke (C.E.T.) ± 1mm660713763815865915101711171271152117712021227122753025
Resistance (C.E.T.)101010101010101020202020202020
Mechanical stroke (C.M.)mm671723773825875925102711271281153117812031229127953045
Case length (A)mm88186391396510151065116712671421167119212171240629353185

Novotechnik TLH series Replacements

PKM series is a direct cross to the Novotechnik TLH series. Convert your Novotechnik TLH series part numbers to Gefran PK Series with the chart below.

Novotechnik Model NumberStrokeGefran Model

Improve Your Injection Molding Processes with Gefran Linear Transducers

Hi-Watt offers reliable linear potentiometers by GEFRAN to maximize your productivity and efficiency. Reach out to us today to learn more about our line of products.