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Linear Drive CLSP

Servo Drive CLSP

The servo drive CLSP is a hydraulic linear drive from the Voith product family of self-contained drives. Characteristics for self-contained Voith servo drives are the high energy efficiency, overload safety and nearly wear-free operation.

The CLSP drive additionally has an automatic load-dependent change-over of the hydraulic transmission. As a result, the electric connection power is significantly reduced with the result that the size of the motor and the inverter are smaller.
The main components of the CLSP are a servo motor, a 4Q internal gear pump and a directly coupled hydraulic cylinder. No hydraulic unit or oil tank is required for the operation of the self-contained drive. All hydraulic components are integrated into the CLSP servo drive.
The drive is suitable for force control and position control. The sensors used provide the basis for a complete integration in automated production plants.


Voith Turbo H + L Hydraulic GmbH & Co. KG

Schuckertstra├če 15 71277 Rutesheim Deutschland


t +49 7152 992-3

f +49 7152 992-400

Technical Data

Ambient temperature -5°C to +40°C
Mounting position any
Force up to 300 kN
(higher forces on request)
Stroke lenght 50, 100, 200mm
Position measuring system (option) absolute encoder
Positioning accuracy 0,01 mm, typical
Pressure control accuracy 0,5% FS (full scale), typical
Repeatability 0,01 mm, typical
Protection class IP54 / IP64
Control position and / or force control
Maintenance interval 3 years or 20 000 operating hours

Typical applications

  • Bending machines
  • Cutting machines
  • Forming machines
  • Presses
  • Special machines
  • General replacement of spindle drives with servo motor
  • Material handling
  • Testing machines and laboratory applications
  • Food industry

Product Characteristics




  • Servo drive with hydraulic power transmission
  • The drive is wear-resistant and absolutely overload-safe
  • Your drive components and moving parts have a long lifetime
  • After an overload occurs, your machine or equipment can be quickly and easily restarted
  • The drive has only a few electrical interfaces
  • This keeps your startup effort and costs low
  • No staff with knowledge of hydraulics is required
  • Closed-loop hydraulic system with no directional control valves or servo valves
  • The integrated hydraulic system is a stand-alone system (self-contained)
  • You save the procurement and maintenance costs required for an external hydraulic power pack with all of its piping and tubing
  • The linear drive is easy and cost-effective to install in machines and equipment
  • Cylinder with automatic gear shifting and automatic recognition of the load
  • The drive requires small volume flows and correspondingly small pumps and servomotors as well as converters
  • The installed electrical power and the installation costs are low
  • The drive is very fast
  • The productivity of the plant is very high
  • The hydraulic cylinder is controlled with a servo pump whose flow rate is matched to the cylinder surfaces
  • Simple and compact design with no classic valve and control technology
  • The linear drive requires up to 50% less energy, reducing your operational costs
  • The costs for commissioning, training, and maintenance are low
  • Hydraulic system throttle losses are kept to a minimum
  • The drive is energy-efficient and has low cooling requirements
  • Standardized linear drive with very few components and modular design
  • This keeps planning costs associated with system integration low
  • A large number of designs and sizes are available
  • This reduces development times and development costs associated with your machinery or equipment