Compact short-stroke axis for dynamic assembly applications

The result is an extremely compact, rigid and dynamic module which is able to position comparatively high loads with a long-term excellent repeat accuracy of 0.01mm.

The maximum acceleration is 100 ms-2 and the maximum speed is 4 ms-1. Since the driving force (maximum: 150 N) is transmitted directly and without gears to the slide by the play-free junction roller guide, the operators benefit from the outstanding precision, extremely short cycle times as well as high productivity and process stability especially in the case of demanding joining and placement processes. In addition, the modules have mostly wear-free parts, so that maintenance costs and unplanned downtimes are almost nonexistent and you can count on particularly long service lives.

The innovative family-owned company offers its precision module in three stroke variants: 50 mm, 75 mm and 125 mm. It can be optionally equipped with an incremental stroke measuring system (sine/cosine interface) or with an absolute displacement encoder (Hiperface or SSI interface). An absolute-value transducer eliminates the need for complex reference runs when starting up the plant and after emergency stops. Moreover, the module doesn’t need end or reference sensors, which reduce investment costs, programming work and the number of cables in the cable set. The unit is controlled either by the Bosch Rexroth IndraDrive controller or by the Siemens SINAMICS inverter. By using standard controller interfaces (such as Sercos III, Profinet IO, EtherNet/IP, EtherCat, Profibus, Sercos 2, CANopen or DeviceNet), the module can be quickly and easily integrated into higher-level control systems. Optionally, the short-stroke axis can be equipped with a pneumatic load-balancing system or with a holding brake for use as a Z axis.

Thanks to a standardized drilling pattern, it can be combined directly with numerous modules from the world's largest system program for modular high-performance assembly by SCHUNK. The pneumatic LM 100 linear module by SCHUNK can be replaced 1:1 by the SCHUNK linear motor axis ELB, which allows significantly higher flexibility in use.