Linearis CL Ex 1

Electro-mechanical damper actuator for Ex-Zone 1

The CL series offers classic drive technology with motor/gear combination and cam mechanism in a classic design. Three series up to 300 Nm in combination with various actuating times open up a wide range of applications for a wide variety of industrial tasks. Of course, the CL series offers not only a robust metal housing, but also all commercially available options, from the additional limit switch to the positioner with load cut-off. Three cable entries M20 x 1.5 allow easy wiring even in the case of high-cross-section leads. The CL series is also available in voltages of 230 V, 115 V, 24 V AC or 24 V DC.

A stainless steel split spindle with a dryspin® spindle nut ensures reliable and maintenance-free operation. Due to the high gradient, the required engine speed is significantly reduced in comparison to the classic design, so that the engines run much smoother and quieter. This considerably increases the service life of the motors. Instead of the commercially available castings, Linearis CL uses anodised aluminum machined parts, which are significantly more robust at low weight. The Linearis has been developed by practitioners. Long holes in the brackets allow easy assembly even by only one mechanic. Dirt deposits are prevented by the spindle in the dry run so that large and expensive bellows designs are no longer required. The synchronous motors used in the drive head operate with a purely frequency-dependent positioning time and thus ensure precise control. A robust powder-coated housing reliably protects drive technology even in harsh industrial environments. Despite the compact dimensions of the drive head, the Linearis CL allows all standard options, including emergency operation in case of power failure.

The Linearis lift unit is also designed to meet the requirements of the ATEX directives so that the combination of the linear unit and the zone 1 drive is a reliable unit.

The Linearis CL is available in standard stroke lengths of 150 and 300 mm for actuators up to 5000 N.

Other stroke lengths are also available on request.




Actuating time



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Single component or complete unit.

  • Drive

    • CL drive head
      • Robust industrial design
      • Installable in any position
      • Maintenance free
      • Short-circuit proof synchronous motor
      • Precisely adjustable switching cams
      • Numerous options, e.g. additional switches, potentiometer, position indicator, position controller, manual override etc.
      • Controller card PMR-Nano optional
      • Cover 98-178 mm, depending on options
      • Controller card PMR-CL optional
  • Lineareinheit


    • Stainless steel high-helix lead screw Ø18
    • Lead 40 mm with optimized efficiency
    • Less turns per stroke length
    • Long-life motor
    • Slow and smooth motor movement
    • Low noise and vibration
    • Holding torque by self-hold of the actuator
    • Separately exchangeable actuator
    • High-strength, anodized aluminum milled parts, corrosion resistant and lightweight
    • Long holes for fastening, i.e. easy installation
    • Maintenance-free by dry-run, no lubrication necessary, no dirt deposits on grease (longer life span)
    • Embedded (dry) lubricants inside the lead screw nut
    • High quality „dryspin® technology“. Lead screw and nut made by igus©
  • dryspin® technology

    High-helix: Higher life span and efficiency

    The dryspin® technology is based on wear-resisistant igus® high performance polymers, specially designed for screw drives, dryspin® offers a higher life span and effi ciency to high-helixes by their characteristics and geometries, specially matched to the nut and lead screw. By their freedom from lubrication, dryspin® screw drives are suitable for usage in rough industrial just as in clean and hygienic environments (e.g. laboratory automation).

    Spindle nut

    • Lubricant-free
    • High-tech polymer iglidur® J inside aluminum block
    • Optimal transmission of the torque by form closure
    • Vibration-isolating
    • Smooth and steady run

CL drive head

Atex Zone 1


Linearis lift unit

ATEX type


DrySpin thread technology


Robust industrial design

Specifications damper actuator Linearis CL Ex 1
Linearis CL Ex 1
Forcemax. 5000 N (higher forces upon request)
Travel time0.7 mm…8.5 mm/s (load independant at AC)
Travel150/300 mm Hub (more stroke lengths upon request)
Power supply230 V AC, 50/60 Hz
(optional 24/115 V AC, 400 V DS, 12/24 V DC)
Ambient temperature–15 °C…+60 °C
Protection classIP 65
Duty cycle 100%
LABS free according to Daimler test standard approved by Fraunhofer Institute.