Application Example: LHMT

High-torque rotating unit: compact and fast

Compact design with direct drive. The ST 140 rotating unit is ideally suited for the precise multilayer technology of PCBs.

Challenge

LHMT is an equipment specialist for the PCB industry. The cam-driven tables previously used were unsuitable for the new multi-layer trimming machine as they were too large and got in the way when processing small PCBs.

Solution

Thanks to its slimline design, the ST 140 rotary module from WEISS met both the geometric and mechanical requirements. Equipped with direct drive and absolute rotary encoder for free positioning, the unit was able to achieve faster swivelling movements at only marginally higher costs. In addition, thanks to the W.A.S. (WEISS Application Software) it was possible to quickly and easily set up the positioning programs and connect the unit to the master CNC control system.

Products in use

ST model range
High-torque rotating unit

At first glance, a rotary module with direct motor seems excessive for simple 90-degree swivel movements. But the ST140 from WEISS is significantly faster and ultimately doesn’t cost much more than a cam-driven table.

Werner Binhack
Head of Design and Development at LHMT

Solutions

Rotating unit with suction plate performing the 90-degree swivel movement of the PCBs
The ST 140 rotary module met all geometric and mechanical requirements thanks to its slim design
Faster swivel movements and a simple integration thanks to W.A.S. (WEISS Application Software)

Multilayer trimming machine from LHMT for processing PCBs
The slimline ST 140 in action
Extremely compact and highly dynamic: the ST 140 high-torque rotating unit