YH-63 column back to the column type hydraulic pulling device 

 Specifications: Rated Pull: 58kN 
 Rated hydraulic pressure: 24MPa 
 Maximum telescopic stroke: I type type 480mm 680mm II 
 Both ends of the hook head center distance: I type 3.5m II-type 3.3m 
 Weight: I type type 18kg 22kg II technical characteristics: hydraulic cylinder made of seamless steel tube by a 5mm thick, the inner surface of anti-corrosion treatment; 
 Chrome plated piston rod, corrosion, wear resistance; 
 Polyurethane Y-ring, sealing performance, long life; 
 Traction chain of high strength, arc welding technology; 
 Valve for manual transfer valve, easy to use, good seal.