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Designed with Z-axis movement in mind, the new Hepcomotion SDM Screw Driven Module has been designed for applications such as gantry systems and pick-and-place mechanisms.

As well as providing the necessary rigidity, the in-line SDM linear actuator reduces the danger of back driving when matched to a suitable geared motor.

The SDM module has been developed for both single and Z-axis movements to complement other products in the Hepcomotion linear actuator range that are optimally suited for X and Y axis operation.

This product is based on the Hepcomotion SBD – sealed belt drive – linear actuators, which offer a streamlined design and suitability for high loads and demanding duty cycles.

The SDM design differs in that it incorporates a ballscrew that provides greater stiffness and precision.

Common to both is quality sealing that is provided by a stainless-steel band running along the length of the beam and kept in contact by a magnetic strip.

This arrangement is effective at preventing the ingress of dirt and debris, allowing both the SBD and its derivative, SDM, to be used in harsh industrial environments.

SDM units are supplied in beam length increments of 60mm (SDM 20-80) and 80mm (SDM 30-100) up to 2,800mm in one piece; longer units are available on request.

In all, five variants of ballscrew size and pitch are provided.

A long-carriage version of the Hepcomotion SDM screw-driven module may also be specified, which features two LBG bearing blocks in the carriage and has greater load capacity.

Designing a unique engineering principle and making it a commercial success is quite an accomplishment.  Developing that concept and embracing complementary technologies to the point where the business becomes a world leader in its field takes that achievement into a different league.  HepcoMotion has achieved both and in 2009 celebrates 40th year of trading.   

Today HepcoMotion is one of the world’s foremost innovators and manufacturers of linear motion technology.  And this can be attributed to the important tenet – continued investment in its people processes and products.  This has allowed the company to grow even at times of economical difficulty.  

Although its range of individual, linear motion products remains an important part of its business the growth area for HepcoMotion in recent years is in specials and assemblies.  Almost one fifth of its shop floor space is devoted to assembly and the company has invested heavily in flexible manufacturing to ensure that even last minute changes can be accommodated to customer specification.  

Constantly re-assessing its strengths against changing market demands continues to provide HepcoMotion with the momentum for business growth.  The culture of ongoing investment has certainly worked well throughout its first 40 years and will continue to underpin its business in the decades to come.

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