How to reform 400 tons hydraulic cylinder

Hydraulic cylinder in use process will be transformed because of the demand, the hydraulic cylinder transformation technology is strong, in the transformation process needs to pay attention to many, the following small compilation according to the collection of transformation knowledge and share with you.

The system defects and hydraulic system have been greatly improved, and the double cylinder is replaced by the single cylinder with the guide rod type. How to apply the advantages of the new hydraulic system (single cylinder) to the 400t double cylinder hydraulic press, the first problem to be solved is how to connect and fix the liquid filling valve and the double cylinder.

How to reform 400 tons hydraulic cylinder

After repeated research, the four diameter base block which can support the fixed liquid filling valve and connect the liquid filled tubing and the pressurizing oil pipe is designed. At the same time, the hydraulic system principle of the new 400t single cylinder hydraulic press is used for reference and further optimized:

1, the centralized set of slide valve instead of cartridge valve hydraulic station;

2, the 63SCY14-1B manual variable to the 63YCY14-1B pressure compensation variable piston pump, with the motor power reduced from 40kW to 22kWD, the system has no-load unloading and reversing pressure relief circuit, so the system runs smoothly, low noise.

How to reform 400 tons hydraulic cylinder

3. Filling a double cylinder with a big diameter CF1-H125 type filling valve;

4, the use of cartridge valve hydraulic station has a compact structure, small size, flexible and reliable action, less leakage, low noise, the main components (spool, valve sleeve, pilot valve) versatility, interchangeability, installation and maintenance of the system is convenient.

5, the system parts layout is reasonable and beautiful, all parts of the seal plate flange with 0 type sealing ring, easy installation, sealing effect is good.

6, the high level tank, liquid filling valve to double cylinder rapid filling, air and return speed increased from 30m/min to 80m/min. using pressure compensation variable piston pump the slider in the workpiece is pressed when the action speed of the slider with the work pressure is gradually increased and gradually from fast, easy to operate.

The electrical control is simple, easy to operate, the original system has 3 oil pumps, after the transformation of only one (the total power of the motor reduced from the original 53kW to 22kW), power saving 38.5%. since the transformation in July 1995, since the use of investment, the work is normal and reliable, hydraulic system does not appear fault.