Zaytran Sigma grippers from SMC were developed for applications that impart high acceleration to heavy objects or require extremely long, precisely positioned jaws. These light weight grippers are capable of delivering gripping force in excess of 700 pounds and tolerate jaw torque of 1,000 foot pounds.
A unique feature of the Sigma gripper is the patented synchronous technology. The synchronous technology uses a synchronizing double helix that is independent from the gripper force system. The double helix's only function is to center the part to +/-0.001 inches. By keeping the force and synchronization systems independent the Sigma provides this level of precision over the 10,000,000+ cycle of the unit.
For a pdf catalog of the Zaytran grippers [click here]