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‘One-type-fits-all’ doesn’t work for X-Y-Z positioning, says HepcoMotion

01 April 2010

The notion that any type of linear actuator can be chosen for any axis in an X-Y-Z system will be challenged by HepcoMotion at this year’s Machine Building Show, which forms part of the Advanced Manufacturing event (NEC, April 27 and 28 2010).  The demands on each of the axes vary considerably so a ‘one-type-fits-all’ approach will ultimately compromise performance, reliability and service life of the overall system.

On a specially developed demonstration unit the company will show that with the correct choice of linear actuator, each axis will operate optimally. It has developed a family of actuators to address the different characteristics in each axis. If required, these elements can then be incorporated into a chassis made from HepcoMotion’s comprehensive MCS machine construction system and given intelligent control through the company’s partnership with Smart Drive.

The demonstrator will show the HepcoMotion PDU2 linear actuator operating as the X-axis foundation of the system. This product features high-performance Herculane wheel technology in a compact and cost-effective belt driven unit.

As a Y-axis typically requires high load capacity and stiffness against twisting loads, the PDU2M with high moment load capacity will feature. And the needs of the Z-axis are different again, with enhanced linear force and higher gearing a common requirement.

The new PSD80 is a good choice for this task, with drive from a super-smooth stainless steel lead screw operating with a bearing polymer nut. It, too, uses Herculane wheel technology in a unit that is perfectly matched to the other axes in terms of performance, size and cost. These X-Y-Z systems can be supplied as individual parts, in kit form or as fully assembled units.


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