Why do hydraulic presses have the advantages of energy saving?

Why do hydraulic presses have the advantages of energy saving?

Many people think that the price of hydraulic press is higher than that of traditional hydraulic press, but its performance ratio is far better than that of traditional hydraulic press. One of the obvious aspects is energy saving. However, what kind of machinery is used and energy consumption are one of the issues we are most concerned about. Compared with traditional hydraulic presses, driving hydraulic presses can save electricity in the range of 20% to 60%. So what causes the hydraulic press to save so much electricity than the traditional hydraulic press?



1. Compared with ordinary motors, the efficiency of the motor is about 1% to 3% higher, which determines that the driving hydraulic press is more energy-saving;

2. In the pressure holding stage, the speed of the motor driving the hydraulic press only supplements the leakage of the pump and the system. The speed is generally between 10rpm and 150rpm, and the power consumption is only 1% to 10% of the rated power. Traditional hydraulic presses consume 30% to 100% of the rated power in the pressure-holding stage according to different pressure-holding methods;

3. When the slider is rapidly lowered and the slider is stationary at the upper limit, the motor does not rotate, so it does not consume electricity, while the traditional hydraulic motor is still at rated speed and rotates at the speed, and still needs to consume 20% to 30% of the rated power. , and these rated powers are mainly consumed in the energy consumed by the motor cable, the friction of the pump, the resistance of the hydraulic passage, the pressure drop of the valve, the connection of the mechanical transmission, etc.

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