Maintenance of four-column hydraulic press

Maintenance of four-column hydraulic press

Proper use of machinery and equipment, careful maintenance and compliance with safe operating procedures are necessary to extend the life of the equipment to ensure safe production. First of all, you should be familiar with the structural performance and operating procedures of the machine and master the features.

●Maintenance

1.Hydraulic oil is recommended to use N46# anti-wear hydraulic oil.

2.The oil should be strictly filtered before entering the tank. The oil in the tank should not be lower than the oil mark. The filling tank should be filled up to the oil return.

3.The hydraulic oil should be replaced once every six months, and the first replacement time should not exceed 2 months.

4.The surface of the column and the exposed piston should be sprayed with oil frequently, and should be sprayed once a day before work.

5.Under the nominal force of 315KN, the maximum allowable eccentricity of the maximum load is 20mm, and the eccentricity should be too large to cause the column or other undesirable phenomena.

6.Check the pressure gauge every six months.

7.When the machine is deactivated for a long time, the surface should be wiped clean and coated with anti-rust oil. If the ejector system is not in use, release the corresponding valve.

8.According to the use of shifts, check the filling valve fixing nut regularly for 2-3 months, and do not loosen.

●Safety operation procedures

1.Those who do not understand the structural performance of the machine or the operating procedures should not start the machine without authorization.

2.The machine should not be repaired or adjusted during the working process.

3.When the machine has serious oil leakage or other phenomena (such as unreliable operation, loud noise, vibration, etc.). Should stop to analyze the reasons, try to eliminate, do not allow disease to put into production.

4.Do not overload or exceed the maximum eccentric distance.

5.It is strictly forbidden to exceed the maximum stroke of the slider (the minimum closing height of the mold shall not be less than 450mm).

6.Electrical equipment should be grounded firmly and reliably.

7.When the machine is not in use, the slider should be dropped and closed with the mold.

8.Fill the slider with oil before each shift.