About US

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Chongqing Quanjing Machinery Manufacturing Co., Ltd., formerly an enterprise restructured from Chongqing Fuchai Industry, has over 40 years of history in internal combustion engine production. The company is certified under the ISO9001 system and holds multiple domestic and international certifications including CCC, CE, EPA, and SONCAP, along with import and export operation rights. It is equipped with a full set of precision inspection equipment such as three-coordinate measuring machines and engine dynamometers, and conducts product R&D using 2D and 3D software. Its main products include motorcycle gasoline engines, general-purpose gasoline engines, gasoline engine water pumps, and gasoline generator sets, and it holds multiple national patents. Adhering to the philosophy of "No best, only better," the company continuously provides customers with high-quality, low-cost "Quanjing" and "Xinli" series products.

1958

Established

200+

Number of Stores

600000

Annual Output

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Products

Strong R&D Capability, Constantly Developing Marketable New Products

Gasoline Water Pump P50KB-2

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SERVICES

Service & Support

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FAQ
TechDocs

Q: What outlet sizes are available for QJMC self‑priming water pumps? What are their flow rate and head parameters?
A: Our main‑selling models are 2‑inch and 3‑inch gasoline‑powered self‑priming water pumps with in‑house die‑cast aluminum pump housings. Exact flow rate, head and suction‑lift figures vary by model. Please check product pages or contact sales for the full specification sheet.
Q: How do I choose between rated power and peak power for generators? What is the function of AVR?
A: Rated power refers to sustainable continuous output, while peak power is the instantaneous maximum output at startup. We recommend reserving a 20 % power margin against your total load. AVR (Automatic Voltage Regulator) stabilizes output voltage and protects sensitive electric devices such as computers and lamps.
Q: Are pump parts interchangeable? Can I purchase wearing parts separately?
A: QJMC original spare parts fit the corresponding pump models. Wearing components including seals, impellers, spark plugs and recoil starters can be purchased individually. Long‑term spare‑parts supply is guaranteed.