Bag gripper for robotic palletising

Paul Boughton
SAS Automation is introducing a new adjustable gripper for bag handling applications that eliminates the need for costly custom tooling and can be adjusted quickly and easily in minutes for different production runs using a simple handwheel. The company says the gripper is suitable for use with plastic, woven cloth and paper bags containing heavy products including grains, chemicals, dog food, minerals and plastic resins.
This innovative gripper uses stainless steel fingers for both strength and their ability to withstand harsh manufacturing environments. A decker mechanism is designed into the tool to facilitate an accurate bag drop once positioned over the pallet - which is important for a tightly packed pallet. In less than 30 seconds, the tool's bag width can be changed from 12 to 21 inches.
Weighing 78kg, the gripper can handle bags weighing up to 50kg. Bearings are double-sealed for long life and the gripper can be equipped with a servo drive to adjust the width automatically when handling mixed loads. High-flow pneumatic valves provide a complete open/close cycle in less than 600 milliseconds.
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