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Hydraulic Coupling Fuel Standard
Oct 14, 2017

The working oil of the hydraulic coupling is the medium of the transmission torque of the coupler, and the amount of oil filled by the hydraulic coupling has a great influence on the transmission torque size and the overload protection of the coupler.So we must pay attention to the quantity and method of liquid coupling.

For the coupling of the same type and specification, the amount of oil filled directly affects the torque of the hydraulic coupler.The basic rule is that in the prescribed oil filling range, the more oil is charged, the greater the transmission torque of the coupler.When the torque is constant, the more oil filling, the higher the efficiency of the hydraulic coupling, but the starting torque will also increase, and the overload coefficient will increase accordingly.Different oil filling can be used to match the hydraulic coupling of the same specification with several different power motor, so as to apply different working machine requirements.

The volume of hydraulic coupling is the same as that of the specification hydraulic coupler, which has a certain range of transmission torque, which is called power belt, and this power belt corresponds to the filling range of the coupler.Normally, the liquid-filled range shall be 60%~80% of the total volume of the coupler, not exceeding this range and not filling.When the hydraulic coupling charging amount more than 80% volume, coupling in turns, rose sharply due to overload and booster, lead to the expansion of the working fluid volume, coupling of the internal pressure increases, lead to the sealing parts, causing leakage, even cause coupling shell crack, caused by mechanical damage.

Therefore, please be sure to pay attention to the oil quantity and oil filling method when filling the hydraulic coupling.