The BZWZ type injection pump is composed of main components such as a high-pressure pump, explosion-proof motor, stainless steel automatic unload fluid control valve, and base. The high-pressure pump is a super high-pressure pump produced with technology imported from the United States, featuring small size, low noise, minimal pulsation, and stable operation. The power end utilizes forced lubrication, with the high-speed shaft and crankshaft driven by bevel gears for smooth and reliable transmission, with low temperature rise suitable for continuous operation over extended periods. The hydraulic end components are made of precipitation硬化 martensitic stainless steel; hard alloy plungers; and highly sealed materials with automatic compensation for long-lasting durability. The product is primarily used for hydraulic cutting and hydraulic caving along the airway in coal mine tunnels, hydraulic fracturing, and has been widely applied underground in coal mines.