Main features: 1. Optimally designedsteel-frame structure, is sturdy and durable 2. Single piston double-acting hydraulic oil cylinder, is durable 3. Up stroke and down stroke ofcylinder rod controlled by manual, is convenient and flexible 4. Beam of work platform moves lifting device from up to down, is convenient and easy 5. Electric pump, manual compensation, easy to operate 6. Electric pump, manual compensation, easy to operate Piston rod chromium plating laye 3μm 7. Sealing element grade B

Main features: J23 D type with adjustable stroke 1. Adopts horizontally placed crankshaft. 2. Rigid rotated bond clutch. 3. D23-63A/80A adopts dual rotated bondstructure to overcome rebound of punching effectively. 4. Manual shut height adjustment with scaledisplay. 5. The type with “A” equipped with emergencystop device,which could make the slide stop at 0°～135°areaand equipped with light curtain protector as well. 6. Adopts horizontally placed crankshaft. 7. Strokeadjustment device mounted on crankshaft. 8. Rigidrotated bond clutch. 9. Manualshut height adjustment with scale display.