Schunk SRU-plus 20-S rotary module gives greater speed or weight capacity
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Lightweight components and a patented shock absorbing system enable Schunk's SRU-plus 20-S to provide rotation times from 0.3 sec and up to 3,700 cycles per hour. Alternatively, a load of up to three times or more than that of standard rotary units of the same size is possible, claims the company.
The shock absorbing system of the SRU-plus 20-S combines an elastomer with an oil-damped shock absorber. Arranged in a stack, the damping provided significantly shortens cycle times and increases the number of cycles possible, or enables the rotation of much higher mass inertias or loads.
All variants of the SRU-plus 20-S rotary unit are completely modular in design whereby existing SRU or SRU-plus modules can be replaced 1:1 by all variants of the SRU-plus, including the high speed version. System integrators therefore benefit from maximum flexibility in the planning of systems.
Depending on the requirements, customers can choose one of three damping variants: the hard-damped version SRU-plus H for minimal interfering contours at high loads; the soft-damped version SRU-plus W for short cycle times in combination with minimal installation space, or the SRU-plus S version with high performance damping for high cycles per hour or for particularly compact systems.
To match the particular application, all SRU-plus versions are available with media feed-through, with stepless adjustment of the end positions or with pneumatic or locked central positioning. The series is available in different sizes from 20 to 60 (versions H and W). The rotary angle of 90 or 180° with an end position adjustment of +3°/-3° or +3°/-90° also allows flexibility in the design of assembly processes.
Integrated feed-through enables the passage of gases, liquids and vacuums without cumbersome and interference-prone hoses. Optionally, electric rotary feed-through that ensures long-term reliability of sensor and actuator signals is also possible.
The Schunk swivel head series SRH-plus also benefits directly from the expansion of the rotary module series. The numerous SRU-plus variants that include the high speed version with high performance damping, are available in a combined SRH-plus swivel head version. The swivel heads can be equipped with electric signal feed-through and a media feed-through to enable the design of very compact and reliable systems.
Interference caused by defective cables or hoses are practically eliminated as a result of the integrated rotary feed-through system. As the swivel heads meet protection class IP67, they can also be used reliably in demanding environments.
