GMP’s Optical and Magnetic Encoder offerings are intended only for customers that are procuring a complete dc motor/encoder or dc gearmotor/encoder assembly. We do not sell theses encoders separately.



Magnetic Encoders – Low Cost

One of the most exciting offerings is low cost integrated magnetic encoders in both single track and quadrature variants. These encoders are integrated in iron core dc motors from 12 mm in diameter to 54 mm diameter. Gearboxes include Spur, Planetary, and a limited offering of right angle gearboxes. They are offered with standard 100 mm cables and connectors.

In spite of their low cost many offer optional dust covers or encoder caps. For production quantities custom connectors and cable length are offered.


Optical Encoders – Modular


In the Optical Encoder area we offer 22 mm diameter and 30 mm diameter modular encoders with up to 512 lines in quadrature and zero index. Additional encoders versions will be coming on line soon. 

The Optical Encoders are offered for a wide range of Coreless dc motors, ranging from 22 mm diameter 10-Watt Neodymium Iron Boron motors to 300 Watt plus designs as large as 62 mm diameter. All encoder ready coreless motors are offered with Copper Graphite Commutation.

Options include a multitude of line counts plus single and dual tract.


© Copyright 2011 George A. Beauchemin

All Rights Reserved


Motor Compatibility Motor Diameter Range Resolution per Channel Encoder Technology Number of Channels Voltage Range Nominal Current Motor Max Power Special Features Datasheet PDF
Volts Watts Download Here
Iron Core – Low Cost 12 mm to 54 mm Ø 1 to 7 Magnetic-Hall Effect 1 or 2 3.5-20 Volts 5 mA Nominal 60 Low Cost-Low Voltage-Low Current pdf icon
Coreless 16mm to 17 mm 512 Magneto Resistive 3 5 Volts ≤ 40 mA 10 Complementary Outputs pdf icon
Coreless 13mm 256 Magneto Resistive 3 5 Volts ≤ 40 mA 3.2 Complementary Outputs pdf icon
Coreless 10mm 12 Magnetic – Hall Effect 2 3-24 Volts ≤ 10 mA 1 TTL pdf icon
Coreless 16mm to 24 mm 200 Optical 2 5 Volts ≤ 23 mA 17 TTL Coming Soon