The ARRI CLM-4 (Controlled Lens Motor) is a robust and versatile lens motor designed for professional cinematography. It serves as a middle-ground workhorse in ARRI’s Electronic Control System (ECS), offering a balance of high torque and quiet operation. Unlike the LBUS-based cforce motors, the CLM-4 uses a standard CLM connection, making it the primary choice for legacy systems like the ALEXA Plus and universal motor controllers.
Key Features and Benefits
Modular Design: The motor unit, gears, cables, and brackets are all independent, allowing for easy maintenance and flexible rigging.
Quiet & High Torque: Powerful enough to drive stiff vintage glass while remaining silent enough for dialogue-heavy scenes.
Flexible Gear Placement: Drive gears can be attached to either side of the motor, allowing it to be mounted above or below the lens in tight camera configurations.
Broad Compatibility: Works seamlessly with ARRI UMC-4, SMC-1, and WCU-4 controllers, as well as Alexa Plus and Studio camera bodies.
Interchangeable Gears: Supports multiple gear mods (0.8, 0.6, 0.5, and 0.4) to accommodate standard Cine lenses as well as ENG-style lenses.
Universal Mounting: Features a clamp that fits both 19mm and 15mm rods via an included insert.
“Feel free to call or email and make your best offer.”
cost: 1600 EURO
Marko Procházka
marko@filmsupport.sk
R-01-07-26
Price Investigation:
Newlifecine: WUC4 $ 9,000
Justcinemagear: Wireless kit 13,650 dollars – 7,250 dollars – 9,650 dollars
AI says:
In the global second-hand market for 2026, the ARRI CLM-4 Motor continues to hold significant value due to its durability and high-torque performance. While the newer cforce motors are more common for compact setups, the CLM-4 remains the standard for larger studio builds and legacy ARRI systems.
The average price for a used ARRI CLM-4 motor unit typically ranges from $900 to $1,800 USD (€850 to €1,700), depending on the included accessories (gears, cables, and brackets).
Average Used Market Pricing
Model / Condition Estimated Used Price Range (USD) Estimated Used Price Range (EUR)
Motor Unit Only $900 – $1,100 €850 – €1,050
Basic Set (1 Gear + Cable) $1,200 – $1,500 €1,150 – €1,400
Full Kit (4 Gears + Bracket + Case) $1,600 – $1,900 €1,500 – €1,800
ARRI Certified Pre-Owned (CPO) $2,000 – $2,300 €1,900 – €2,150
“Feel free to call or email and make your best offer.”
