Nemicon – Small Hollow Shaft Encoder 38HG

Small Hollow Shaft Delivery Encoder (Outer Diameter φ38mm)

Brand : Nemicon

The Nemicon 38HG Series is a small hollow shaft incremental rotary encoder designed to provide high performance motion feedback for industrial automation and precision control systems. With an outer diameter of 38 mm and hollow shaft construction, the encoder is engineered to fit directly onto motor or machine shafts without the need for couplings, enabling easier installation and reducing mechanical complexity. Its rugged build and stable signal output make it suitable for use in conveyors, packaging machines, robotics, and other automated equipment requiring accurate rotational detection.

The 38HG encoder supports a wide range of resolutions to meet varying application requirements and offers standard A, B, and Z phase outputs for position, speed, and direction feedback. It also features selectable output driver types such as open collector and line driver, making the encoder compatible with different controllers, PLCs, and motion control systems. With high response frequency capability and robust performance at elevated rotational speeds, the 38HG delivers dependable feedback for demanding industrial environments.

For more info, download our full technical spec.

Specifications

Parameter Specification
Encoder Type Incremental Rotary Encoder
Encoder Design Hollow Shaft Type
Outer Diameter 38 mm
Hollow Shaft Diameter 6 mm to 10 mm depending on model
Resolution 100 to 5000 pulses per revolution (P/R)
Output Signals A, B, Z Phase
Output Type Open Collector or Line Driver
Power Supply DC 4.5 to 13.2 V depending on output type
Maximum Response Frequency 300 kHz max depending on resolution
Maximum Permissible Speed 6000 rpm
Operating Temperature -10°C to +85°C
Storage Temperature -30°C to +85°C
Humidity 85% RH max without condensation
Protection Rating IP50
Weight Approx. 100 g without cable

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