Cate 420d LOADER 2354109 235-4109 Hydraulic Piston Pump

Hydraulic pump is to provide a hydraulic pressure liquid components, is a kind of pump.It is the function of the engine (such as electric motors and internal combustion engine) to convert the mechanical energy of the liquid pressure

The characteristics of

Aluminum alloy manufacture, high strength, corrosion resistance, light weight, suitable for all kinds of environment.

Double speed characteristic, decrease the number down rapidly under load to work hard in the low pressure chamber, immediately into a high pressure, shortening the period of each job.

Equipped with a pressure regulator, the adjustable control and set the working pressure

1. The pressure of hydraulic pump

Hydraulic pump working pressure refers to the pump (or motor) in the practical work of output (or input) oil pressure, is determined by the external load.

Pressure rated refers to under normal working conditions, as stipulated in the standard test can continuous operation of the highest pressure.If its size is limited by the life, more than the rated working pressure, the service life of the pump (or motor) will be shorter than design.When the work pressure is greater than the rated pressure by overload.

2. The speed

Job rotation speed (or motor) refers to the pump at work the actual rotational speed.

Rated speed refers to the rated pressure, can continuous working for a long time the highest speed.If the pump more than the rated speed work may result in lack of oil absorption, vibration and noise, parts will be subjected to cavitation damage, reduce the service life.

The minimum stable speed refers to the normal operation of motor is allowed to the minimum speed.Under the speed, the motor is not appear crawl phenomenon.