1. Robust S41mm hexgon shaft with adjustable clearance design, manual locking mechanism.

2. Durable copper wire motor

3. The end of worm shaft of gear box uses thrust bearing.

4. Iron bead-breaking air cylinder with anti-rust processed inner wall, equipped with quick ventilaton valve on the front cover. 

5. Square turntable with self-centering chucks protected by sliding plates greatly prolongs the life of use.

6. Standard aluminum pedal with stepping movement function which makes the claw stop at any position.