The ARRI cforce plus is the most powerful motor in the cforce range, with continuous torque of 0.7 Nm and a peak of 1 Nm. It reaches 210 teeth per second, runs on 12–34 V and weighs 325 g with gear and bracket.
With ALEXA Mini and ALEXA LF it connects directly via LBUS; with other cameras via AMC-1 or UMC-4. Up to three motors can be daisy-chained through two LBUS connectors. With stiff lenses or a weak battery, the manufacturer recommends separate motor power.
Ideal for
Why ARRI cforce plus motor
- High torque – 0.7 Nm continuous handles even stiff lenses.
- Speed – 210 teeth/s for fast refocusing.
- Daisy-chaining – Up to three motors via LBUS with a single cable.
- Mount – Holders compatible with CLM-4.
Key specs
| Type | Motor |
|---|---|
| Compatibility | ALEXA Mini/LF, cmotion; others via AMC-1 or UMC-4 |
| Power | 12–34 V DC, max 32 W |
| Weight | 325 g (with gear and bracket) |
Motor parameters
| Torque | 0.7 Nm continuous, 1 Nm peak |
|---|---|
| Speed | 210 teeth/s (with 60-tooth gear) |
| Connectors | 2 × LBUS (4-pin) |
| Dimensions | 130 × 89.1 × 28.8 mm |
| Operating temperature | -20 to +50 °C |









