Product Announcement from Yaskawa America, Inc. - Motion Division
For more powerful, higher positioning accuracy, direct drive factory automation applications the Sigma Series servo system product line now realizes up to 5310 in. lb. peak torque and up to 500 rpm max. without gearboxes utilizing the latest advances in motor design and amplifier power electronics. In many semiconductor, material handling, high speed assembly, and packaging processing lines, the Direct Drive SGMCS product line will provide faster, more accurate positioning for rotary table, assembly, inspection and test equipment. It also provides a programmable alternative to the fixed motion of a traditional mechanical cam indexer.
The Direct Drive SGMCS servomotors include:
1) Six frame sizes, seventeen models ranging from 15 in.lb. peak in a 135mm diameter package to 5310 in.lb. peak torque in a 360mm diameter
2) Up to 500 rpm max.
3) High precision 20-bit (1,048,576 ppr) resolution per rotation
4) A higher torque, low noise, no backlash, gearless construction
5) A hollow space in the motor can be used for wiring and piping
The size of the machine's drive section is reduced due to the compact nature of the motor construction and the ability to directly drive higher torque loads. No homing is necessary with use of the absolute encoder function. For this reason, higher torque AC servo performance is now available where previous choices had been limited to motors with gearboxes, timing belts, cam boxes, etc.