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Magnetic translational measuring system position detection on hydraulic cylinders

The measuring system MTM-Q is based on the physical principle of magnetism and is used for high-precision detection of position, length and / or speed on fixed round profiles, e.g. non-rotating piston rods in hydraulic cylinders. The contactless and wear-free single-track measuring system as quasi-absolute version:

  • Contactless, wear-free measuring principle
  • Very robust and proven measuring technology
  • Insensitive to contamination
  • High shock and vibration resistance
  • Interface: Analog output or CANopen
  • Power supply: 10 ... 30 VDC

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Measuring principleincremental (quasi-absolute)
Repeat accuracy± 1 increment
System accuracy in µm at 20 °C± (1000 + 20 x L), L = measuring length in meters
Distance sensor / piston rodcoding with 10 mm: max. 2.0 mm,
coding with 20 mm: max. 5.0 mm
Sensor housing materialmeasuring system: aluminium with casting compound
Housing dimensions
(L x W x H)
MTMQ-S: 64 x 44 x 43 mm,
MTMQ-L: 64 x 44 x 55 mm,
entire system: depending on used cylinder system and stroke length of the round rod
Available round rod diametersaccording to ISO 3320
min. 20 mm ... max. 360 mm
Available cylinder diametersaccording to ISO 3320
min. 40 mm ... max. 400 mm
 Pole pitch of piston rod16 mm
Maximum measuring length2500 mm (available in 10 mm steps)
Connectionsoption 0: open cable ends
option 1: 8-pin M12 x 1 (male) round connector at the housing,
option 2: 8-pin M12 x 1 (male) round connector at the signal cable
Sensor cable1.5 m standard length, others on request
Sensor cable bending radius60 mm
WeightMTMQ-S: approx. 170 g,
MTMQ-L: approx. 180 g
entire system: depends on measuring length  (= stroke length to be monitored) and application,
cable: approx. 60 g/m


Power supply voltage 10 ... 30 VDC
Residual ripple10 ... 30 VDC: < 10%
Current consumption10 ... 30 VDC: max. 150 mA
Battery operating timeup to 1 year after power-off (under optimal charging and ambient conditions)
Output interface (depends on order information) 12 bit analog (U) 0.5 ... 4.5 V,
12 bit analog output (I) 4 ... 20 mA,
CANopen standard (DS406)
Operating speed2 m/s


Storage temperature-25 ... +85 °C
Operating temperature-25 ... +85 °C
Humiditiymax. 95 %, non-condensing
Protection classMTM-Q measuring system:
standard: IP65, optional: IP69K
mechanical system:
depending on used cylinder system


Data sheet MTM-Q