Linearis TE Ex 1

Fully electronic damper actuator for Ex-Zone 1

With the Tensor series, ARIS offers an innovative generation of electronically controlled actuators. The Tensor is based on a low-play precision gearbox in combination with a brushless DC motor. In the Tensor, the complete mechanical shut-off system was replaced by a wear-free and non-contact position detection based on the Hall effect. This sensor technology was developed years ago for use in the automotive industry and has proved itself through extreme robustness, wide temperature range and high reliability. ARIS actuators of the series Tensor Ex are designed for industrial use in zone 1 hazardous areas. They are used for the actuation of regulating and shut-off devices, e.g. flaps, valves, ball valves, dosing pumps etc., and offer a high safety level. The drives of Zone 1 are characterized by a high level of intrinsic and operational safety.

A stainless steel high-helix spindle with dryspin® spindle nut made of high-performance polymer ensures reliable and maintenance-free operation. Due to the high lead, the required engine speed is noticeably reduced in comparison to the classic design, so that the engines run significantly smoother and quieter, thus significantly increasing the service life of the engines. Instead of the commercially available castings, anodized aluminum machined parts are used with the Linearis TE, which are significantly more robust with a low weight. The Linearis has been developed by practitioners. Long holes in the brackets allow easy assembly. The dry running spindle nut prevents dirt build-up so that large and expensive bellows designs are no longer required. Likewise, the regular greasing is avoided by the lubricant-free construction.

The design of the Linearis lift unit also follows the Atex guidelines, so that the combination of linear unit and zone 1 drive form a reliable unit.




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Single component or complete unit.

  • Drive

    Tensor drive head

    • Robust industrial design
    • Installable in any position
    • Maintenance-free
    • Permanently monitored BLDC motor
    • Electronic setting of end and intermediate positions
    • Electronic wear- and backlash-free position indication via 2 Hall sensors
    • Multi voltage power supply (85-265 V AC) or low voltage power supply (24 V DC)
    • Several add-ons (bus, PID controller, electronic poti, position indicator, special characteristic curve etc.)
  • 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 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).

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

Tensor drive head

Atex Zone 1


Linearis lift unit

ATEX type


Dry Spin thread technology


Robust insustrial design

Damper actuator Linearis TE Ex 1
Linearis TE Ex 1
Forcemax. 5000 N (higher forces upon request)
Travel time0.5 mm…4 mm/s (load independant at AC)
Travel150/300 mm stroke (other strokes upon request)
Power supplyMulti voltage power supply (85-265 V AC) or low voltage power supply (AC/DC)
Ambient temperature–15 °C…+60 °C
Protection classIP 65
Duty cycle 100%
LABS free according to Daimler test standard approved by Fraunhofer Institute.