CKZ5N power clamp conforms to the NAAMS standard. The improved design reduced weight by up to 27% with aluminum body. Bottom unlocking mechanism improves the manual lock release operability. The arm opening angle ranges from 15° to 135°and can be easily changed by replacing the stopper body. Available in 50 and 63 bore sizes. The operating time for arm opening angles of 15° to 90° can be set to 0.6 s.