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Integrated gearmotors save on storage system space

A Parker Bayside product story
Edited by the Engineeringtalk editorial team Apr 23, 2003

Integrated servo gearmotors are an important part of a range of high-volume, specialised storage systems for chemical compounds made by RTS Life Science International.

For systems designed to fit purpose-built buildings, space limitations are always dictating factors.

Helping to overcome such constraints for RTS Life Science International on high-volume, specialised storage systems for chemical compounds are integrated servo gearmotors from Bayside Motion Group.

Employed on two axes of automated "pick and place" configurations (32 axes for initial installation), the Bayside units provide servo performance for the x and z axes while saving around 20% on length, compared with equivalent separate motor/gearhead packages.

Performance requirements are travel speeds of 1m/s, acceleration of 5m/s2 and multiposition location accuracies of 0.15mm with loads up to 14kg.

Both axis units have integral encoders and the z axis also has a brake, yet there is no increase in the standard unit dimensions.

According to Tony Ashworth, Senior Mechanical Engineer for RTS, the Bayside route was taken because the torque/speed performance requirements could be met by a standard product with proven track record and assured backup.

Plus, being an off-the-shelf product, supply lead times are minimised: all important factors for a system that will operate 24/7.

In addition, there is the simplified installation through the elimination of mounting components and avoidance of potential alignment problems.

There was also the added bonus of cost advantage over the conventional motor/gearhead option.

The pick-and-place duties involve the transferring of bar coded sample trays between eight holding locations, batching stations for localised sorting, and a conveyor line.

Each pick-and-place station has a handling capacity of 360 sample trays per hour contributing to the high throughput of the RTS system.

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