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Actuators with Open Screw

Linear actuators with axially moving, open spindle are units consisting of worm or spur gear, fixed DC motor and trapezoidal thread spindle running through the gear. Linear actuators of this type impress with their simple design and high flexibility. A change of direction is achieved by a simple voltage reversal. This variant is the most economical way to generate a motorized linear motion. The combination with different gear reductions results in a large number of variants. In addition, the existing spindle can be replaced by spindles of various lengths, depending on the bearing arrangement. We will also be happy to advise you on a project-specific basis with regard to possible special designs.

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HG2-C7

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  • Load up to 3,500 N
  • Feed rate up to 56 mm/s
  • 12...24 VDC
  • Simple structure without encoder
  • Ideal for basic lifting and feeding tasks
Data Sheet

HG2-C7H

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  • Load up to 3,500 N
  • Feed rate up to 56 mm/s
  • 12...24 VDC
  • Integrated encoder
  • Outstanding control capability
Data Sheet

MHG100

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  • Load up to 1,000 N
  • Feed rate up to 18.5 mm/s
  • 12...24 VDC
  • Encoder optional
  • Reliability and long-term reliability for applications with high duty cycles
Data Sheet

HG200K

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  • Load up to 6,000 N
  • Feed rate up to 27.2 mm/s
  • 24...48 VDC
  • Encoder optional
  • The most powerful actuators in our range for demanding lifting tasks
Data Sheet

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We develop special solutions for the realization of your projects

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No application is like the other. Together with you, we develop solutions for the optimal realization of your technical challenge. No matter whether a specific drive solution, machined linear guides or spindles, or custom-made gear systems. We support the development from the idea to the implementation with our competence and broad knowledge in the field of linear systems and drive conception.

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We move in every industry

We feel at home across all industries. Wherever there is rotary or linear motion, products from Technische Antriebselemente are used. With decades of experience, we have acquired know-how in various industries.

  • Machinery and equipment
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  • Medical technology
  • Intralogistics



  • Electrical industry
  • Automation
  • Food industry
  • Packaging machines


What Our Customers Say

“The open-spindle actuators offer an impressive combination of precision and efficiency. Their open design makes maintenance easy, making them perfect for our demanding applications.”
“These spindle actuators deliver smooth motion and high load capacity. The open spindle allows for direct visual inspection, simplifying maintenance. A reliable product for precise movement!”

60 Years of Experience

4.000 Products

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Frequently Asked Questions About Actuators with Open Screw

Actuators with open spindles are known for their simple design and high flexibility. They typically consist of spur or worm gears, a fixed DC motor, and a trapezoidal lead screw. These actuators provide a cost-effective solution for motorized linear motion and offer various combinations of motor power and gear ratios. They are suitable for a wide range of applications, from basic adjustment mechanisms to complex positioning tasks.
Actuators with open spindles are ideal when a simple, versatile, and cost-efficient linear motion solution is required. They are particularly well-suited for applications where spindle length needs to be adjustable or where space is limited. These actuators are also a great choice for applications involving low to medium loads that require flexibility in speed and load capacity.
Selecting the right actuator depends on several factors, including required load capacity, speed, precision, and environmental conditions. Actuators designed for higher loads are best for demanding applications, while models for lower loads are ideal for precise, fine movements. Key considerations include positioning accuracy, environmental factors, force requirements, and available space. Choosing the right actuator is essential for optimal system performance and efficiency. Our team of experts is happy to assist you in making the best selection!
Spindle buckling is a critical factor in actuators with open spindles, especially in applications with longer strokes and higher loads. If not properly accounted for, spindle buckling can lead to unstable operation and potential actuator damage. To ensure optimal performance and longevity, it is essential to select the actuator’s maximum load and stroke length carefully to avoid spindle deformation.

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