EURO IV Truck Crane
Big arm: 70 manganese plate is selected as the big arm, 70 manganese strength high toughness, low alloy, increase the strength of the arm, reduce their weight.
Cylinder: It depends on material, thickness, hollow core and dead core, processing technology, galvanizing or chromium plating, welding quality at both ends, pinhole wear-resistant sleeve.
Hydraulic oil: 46#.68#, its viscosity, viscosity, temperature resistance, abrasion resistance and rust resistance are different. Compared with regenerated oil, good hydraulic oil has the same power, no heat generation, fast starting speed, time-saving, labor-saving and high efficiency. Its service life can reach 3-5 years without oil change, which is more than twice that of ordinary mechanical oil.