How to save fuel for four-column hydraulic press

Shanghai WORLD Press Machine Machinery Equipment Co., Ltd. is a manufacturer specializing in the design, manufacture, sales and maintenance of various standard and non-standard hydraulic machinery and hydraulic machinery, CNC machinery and automatic machinery. The main products of WORLD Press Machine machinery: presses, single-column hydraulic presses, four-column hydraulic presses, slide-type hydraulic presses, multi-station hydraulic presses, etc., which are widely used in motor rotor press-fitting, bearing press-fitting, hardware accessories press-fitting, copper parts, zinc alloys, Edge punching and shaping of aluminum alloy and other metal die castings, PVC/PET/PC die-cutting and other processes. Let's follow the Shanghai WORLD Press Machine of the four-column hydraulic press manufacturer to learn about the fuel-saving method of the four-column hydraulic press.

The power consumption of the hydraulic oil pump of the four-column hydraulic press accounts for 97% of the power consumption of the entire hydraulic press, so reducing its power consumption is the key to the energy saving of the hydraulic press. The pressure and flow required by the four-column hydraulic press change in the stages of accelerating down, slow down, pressure maintaining, pressure relief return, piston ejection, piston retraction, buffer cylinder ejection, etc. When the oil demand of the hydraulic press changes, The load pressure and flow rate are adjusted by the relief valve at the outlet of the oil pump, while the output power of the hydraulic press motor remains unchanged, thus resulting in energy waste.

The four-column hydraulic press frequency conversion speed regulation equipment is composed of a rectifier circuit, a filter circuit, an inverter circuit and a control circuit. Its function is to rectify and filter the communication electric energy through the rectification link into DC electric energy, and then convert it into the communication electric energy of different frequencies through the inverter link. output to the motor. Therefore, the hydraulic oil pump motor of the four-column hydraulic press can be operated at different speeds.

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