Belt-drive axes offer higher performance
Multi-axis and more demanding single-axis applications can now take advantage of the design, performance and cost benefits of enhanced Profile Driven Units from Hepcomotion.
The PDU2M delivers a 200 per cent increase in moment load capacity and 1000 per cent uplift in moment load stiffness compared to a standard PDU2. Direct load capacity is also 50 per cent greater. In practice this means, for example, that designers can use a single PDU2M unit as a horizontal axis in an X-Y system, where previously two PDU2 units working in parallel would have been required to provide the necessary rigidity and strength.
Key to this capability is the extra ultra-high-performance Hepcomotion Herculane wheels that are mounted on adjustable eccentric studs. These wheels run virtually friction-free on the inside of the profile to provide stable support for the carriage plate; felt wipers sweep debris from their path. The unit is available with a number of carriage designs to allow the quick and easy construction of multi-axis systems with a minimal requirement for brackets and other hardware.
In common with the PDU2, the PDU2M comprises a rigid but lightweight aluminium slotted profile into which fits the toothed belt drive and carriage - an arrangement that effectively encloses the unit. It is rated for operating at speeds of up to 6m/s and is available with a choice of motors providing driving forces up to 280N. The options include a Smartdrive Taranis stepper motor drive and control package for multi-axis applications.
Left, right or double drive shafts can be specified, together with a range of options such as brakes, positioning encoders and mechanical or inductive limit switches. End-of-stroke protection is provided as standard at both ends by internal buffers.
For more information, visit www.hepcomotion.com
