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High speed belt axis delivers increased speed and load capacities

Festo : 03 June, 2013  (New Product)
Festo has introduced a cost-effective belt drive ELGA-RF with increased speed and load capacities. The compact axis enables machine builders and engineers to increase their machine throughput and efficiencies, while benefiting from low maintenance and reduced operational costs.
High speed belt axis delivers increased speed and load capacities

The reliable ELGA-RF has robust roller bearings, which enables it to move at a faster speed of up to 10 m/s compared with alternative belt drives that use ball bearing guides. It can also handle almost double the payload capacity of previous roller bearings. As a result, users can position heavier loads, faster and more accurately.

The drive is robust and suitable for use in harsh operating conditions. It incorporates a stainless steel corrosion-resistant cover strip making it suited to dusty environments, and a magnetic attachment ensures the strip protects the bearings and belt even when inverted.

The ELGA-RF axis is available in three sizes (70, 80 and 120mm) and with stroke lengths from 50mm up to 7400mm. It includes oil impregnated felt which ensures a maintenance free lifetime of over five million metres of travel. This reduces maintenance costs and downtime, therefore enabling the user to increase efficiencies.

The sturdy ELGA-RF has been designed with a low, flat profile and the bearings are spaced wide apart, meaning it can accurately handle and position loads of up to 160kg, which is 100kg more than previously possible with the roller bearing – all without taking up additional space on the machine.

Motor mounting is simple and space saving. The axis features flexible mountings on all four corners as standard, so the drive can be best set up for individual applications.

The ELGA-RF features a lightweight aluminium carriage, providing low inertia. However, as it is capable of carrying high loads, users should ensure that the mountings are secure. Festo helicoil all mounting threads to increase the reliability and robustness of the drive further. All Festo’s drives have centring rings on all mounting faces to reduce shear stress in the bolts, and as a result, offer excellent accuracy.

“Ball bearing guides provide reliable and robust linear movement, however they have limited speed,” says Nigel Dawson, Product Manager for electric drives at Festo. “Now with Festo’s roller bearing ELGA-RF, machine builders can achieve higher speeds of up to 10m/s, and at no extra cost. Delivered ready-to-install, the ELGA-RF is easy to use and fit, making it is suitable for handling, feeding and conveying automation applications in the electronics and packaging industries.”

The ELGA-RF linear drives are simple to size and order using Festo’s free Positioning Drives software. The software can be downloaded from Festo’s website and users enter their requirements, such as load and stroke length etc, to efficiently size electric drives, motors and gearboxes easily. Axes are built and delivered ready to install in 7-10 working days.

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