New benchmark for centric grippers

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2016-08-19 11:50:00

After the spectacular relaunch of the SCHUNK PGN-plus parallel gripper, the competence leader for clamping technology and gripping systems is now rolling out the superior features of its flagship product for inclusion in the 3-finger gripper series. This way, the new SCHUNK PZN-plus centric gripper is equipped with a permanent lubrication in the multi-tooth guidance which, under normal, clean operating conditions, ensures lifelong maintenance-free operation.

With short strokes in particular, the continuous lubricant pockets produce a particularly fast and even distribution of lubricant along the entire multi-tooth guide contour. By enlarging the supporting dimensions between the six load-bearing shoulders of the patented multi-tooth guidance, higher moments can be accommodated and thus longer fingers can be used. In order to ensure a perfect accuracy of fit, each individual base jaw was carefully manually ground and individually fitted to its casing.

In addition, the large piston drive area produces maximum gripping force. Compared with conventional T-slot-guided centric grippers, the new SCHUNK PZN-plus enables up to 50% longer gripper fingers, and a finger load up to 120% higher. Versatile screw-on options, matching those of the previous model, ensure complete compatibility and maximum flexibility with the process and system design.
An enlarged supporting dimension of the multi-tooth guidance and continuous lubrication pockets in the multi-tooth guide contour distinguish the maintenance-free SCHUNK PZN-plus centric gripper.

Comprehensive accessories
As part of the universal SCHUNK gripper module, the new SCHUNK PZN-plus centric grippers benefit from a range of accessories which is unique in its scope. Almost the entire spectrum of conceivable automation applications can today be achieved in a reliable process, from machine and system loading in the machining industry and foundries through to assembly applications in the automotive and electrical industries as well as sensitive handling tasks in medical technology and the pharmaceutical industry.

The universal grippers are equally well-suited for use in areas with high temperatures, contamination, and aggressive media, as well as for cleanrooms. Optionally, the energy supply can be connected with screws or using a hose-free direct connection. On request, the modules are available with spring safety, mechanical gripping force maintenance, compensation units for compensating angular misalignment, dust-proof versions, or as special high-precision versions.

Furthermore, a wide range of sensors is available, from inductive proximity switches and magnetic switches through to position sensors for querying and monitoring stroke position. Instead of many isolated applications, users can reduce their coordination costs with the standardized gripper program, in addition to speeding up their parts procurement process. The SCHUNK longlife warranty for the pneumatic SCHUNK PGN-plus and PZN-plus modules even enables TCO planning of the total costs throughout the entire life of a system.

https://in.schunk.com/in_en/press/presse-service/press-releases/#/article/2871-new-benchmark-for-centric-grippers

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