ARIS Stellantriebe GmbH

Electro-mechanical damper actuator

The Linearis N+ combines state-of-the-art and user-friendly linear technology with classic drive technology in a contemporary design.

A stainless steel split spindle with a dryspin® spindle nut ensures reliable and maintenance-free operation. Due to the high lead, 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 N+ uses anodized 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. The switching cams are supported by special planetary gear units required for the linear movement on the travel distance and allow an exact adjustment of the travel limit switches. A robust powder-coated housing reliably protects drive technology even in harsh industrial environments. Despite the compact dimensions of the drive head, the Linearis N+ allows all standard options, including emergency operation in case of power failure.

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

Other forces up to 7000 N and other stroke lengths are also available on request.



Nano+ 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

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

Linear unit


  • 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 lightweightLong 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©


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