The Cooler In The Hydraulic Press Machine

Generally speaking, a cooler should be installed in the hydraulic system of a hydraulic press machine. Because the cooler plays a vital role in the hydraulic press machine:

1. There must be enough heat dissipation area to keep the oil temperature within the allowable range
2. The pressure loss should be small when the oil passes
3. When the system load changes, it is easy to control the oil to maintain a constant temperature

4. Have enough strength.

How to install the cooler

The cooler is generally installed in the oil return pipeline or low pressure pipeline, and can also be installed in the oil outlet of the hydraulic pump when necessary to form an independent cooling circuit. Details are as follows:

1. The cooler is installed at the overflow port of the main overflow valve. The characteristics of this installation method are: the hot oil produced by the overflow valve can be directly cooled, and it is not affected by the impact pressure of the system. The one-way valve plays a protective role, and the shut-off valve can directly return the hydraulic oil to the tank when it is started. .
2. The cooling is installed on the main oil return line. The characteristic of this installation method is that the cooler is directly installed on the main oil return line, and the cooling speed is fast, but when the system loop has an impact pressure, the cooler is required to withstand higher pressure.

3. Independent cooling circuit The advantage of the independent cooling circuit is that a separate hydraulic pump passes the hot working medium into the cooler, and the cooler is not affected by hydraulic shock.

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