The feedstock gas booster unit for LNG liquefaction plants primarily adopts complete sets of main engines from the MH/WH series of COOPER, USA. The main engine speed ranges from 1000 to 1200 RPM and is electrically driven. It features an oil-free lubrication structure to ensure gas purity and can meet the requirements for long-term continuous operation. The gas volume and exhaust pressure can be customized according to user needs.