Tightener

　　1. Material: 45 # steel seamless circular tube;

　　2. Shaft diameter φ 27.8—— φ 27.95mm;

　　3. Surface roughness: Ra3.2;

　　4. Surface treatment: Black hair and black rust prevention treatment after finishing;

　　5. Pressure: 300kg;

　　6. Handle operation: rubber handle/movable handle.

Industrial robot integration