How to distinguish the pros and cons of the precision four-post cutting machine
1. hydraulic pump
The hydraulic pump is the heart of the hydraulic system, and hydraulic oil needs to flow into the system through pump pressure. Standard 40-ton models should use 41 large-displacement hydraulic pumps to ensure high-pressure and stable output of hydraulic oil. Low standard manufacturers use 36 second-gear pumps or even lower, and it is difficult to ensure stable pressure.
2. hydraulic valve
Domestic hydraulic component brands have risen rapidly in recent years, but there is still a big gap between imported brands in terms of quality and reliability.
Due to the long-term ultra-high pressure and frequent use of the hydraulic cutting machine system, the current high-standard hydraulic cutting machine companies still mainly use imported hydraulic components.
How to distinguish the pros and cons of the precision four-column hydraulic cutting machine
There is no need to mention low-standard manufacturers, bullying buyers do not understand, all kinds of inferior components can be blown away.
3. hydraulic system design
When the hydraulic system in the cutting machine is working, the hydraulic oil passes through the oil tank-the oil pump-the oil pipe-the hydraulic valve-the oil cylinder-and finally returns to the oil tank. This whole process completes the blanking operation and requires an as efficient, smooth and leak-free as possible Hydraulic circuit.
If the hydraulic circuit design is unreasonable and the various adapters are messy, the inner wall of the oil pipe will be worn out under the long-term action of the hydraulic oil air separation pressure and saturated vapor pressure, and the abrasion of the oil pipe will cause a vicious cycle, so the machine noise will become more and more. The pressure is getting smaller and smaller, and various leaks also appear.