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Heden M21VE-L 256-3.3k Digital Servo Motor

Hedén Engineering
Abel Code: HE-M21-100
Mfr. Code: M21-100
Estimated to Ship – 3-4 weeks
This Hedén M21VE-L vertical, high-resolution, digital servo motor features a 256 encoder, 3.3k id-resistor for use with Hedén Carat and BarTech digital wireless lens control systems.
Key Highlights
  • 256 encoder, 3.3k id-resistor design
  • For Hedén CARAT, BarTech digital LCS
  • 19mm/15mm rod mounting option


The Hedén M21VE-L Digital Servo Motor is a extremely small and lightweight motor for professional lens control applications. Its size makes the M21VE-L a popular choice for drone operators and other users with compact camera rigs or limited working space. While the M26VE (sold separately) features higher torque for stiffer lens rings, the M21VE-L is the ideal choice when size and weight are of greater concern.

The M21VE-L mounts vertically on a 19mm (0.75”) rod without the need for tools. The accompanying reduction insert will fit on a 15mm (0.59”) rod, and additional sizes are available (sold separately). Interchangeable, snap-on gears can be mounted on either side of the motor housing. Each motor includes a standard 0.8 pitch gear module, with 0.4, 0.5, 0.6 pitch modules available (sold separately). 

This motor features 256 encoders, 3.3k id-resistors for Hedén CARAT or BarTech (digital) wireless lens control systems.


  • Compatible with Hedén CARAT and BarTech digital lens control systems
  • No tools needed for mounting
  • Interchangeable, snap-on gears with automatic lock action mount on either side of the motor
  • Integrated adjustable rod mount bracket
  • High torque (1.0 N m) for its size
  • Quiet operation
  • Lghtweight, compact form factor


  • Height (Body Only): 1.1” (28mm)
  • Height (Body With Gear Housing): 1.33” (34mm)
  • Width: 0.83” (21mm)
  • Length: 4.19” (106.5mm)
  • Weight: 0.30 lb (135.5g), without bracket and gears
  • Connector: LEMO 7-pin connector

What's in the Box

  • Heden M21VE-L Digital Servo Motor


Key Highlights

  • 256 encoder, 3.3k id-resistor design
  • For Hedén CARAT, BarTech digital LCS
  • 19mm/15mm rod mounting option

Compatibility - Lens Control System

BarTech Digital Receiver/Amplifier

Lens Accessories

Pitch Drive Gear:
0.8 - Included
Rod Clamp Size:
15mm - with insert/adapter (included)


Power Input:
LEMO 7-pin


7 in
11 in
9 in
4.44 lb
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