Take a virtual tour of our 15,000 m² modern manufacturing facility in Hengyang, Hunan — where every SINOR progressive cavity pump is engineered, machined, assembled, and tested under one roof.
Ready for shipment
Hunan Sinore Precision Machinery Co., Ltd. operates a brand-new, standardized production campus covering 15,000 m² in Hengyang, Hunan. Every line on the shop floor — from CNC machining centers to stator molding cells, dynamic balancing stations, hydrostatic test benches, and final assembly — was designed and laid out specifically for the manufacture of progressive cavity pumps.
SINOR (Guangzhou) Trading Co. operates as the overseas sales and service arm under the same corporate group, supporting global customers with technical selection, application engineering, OEM/ODM programs, and aftermarket spare parts.
7 CNC centers produce rotor blanks, drive shafts, connecting rods, universal joints, and pump housings to ±0.02 mm tolerance.
Specialized CNC lathes grind each rotor’s helical profile to match its mating stator cavity — the geometric core of every PC pump’s volumetric efficiency.
Rotor dynamic balancing to G2.5 grade (ISO 1940) — verified before assembly to eliminate vibration, protect bearings, and extend seal life.
In-house elastomer lines mold NBR, EPDM, FKM and HNBR stators under controlled temperature and pressure — every batch validated against the BOM elastomer grade.
Dedicated seal fit-up stations in a controlled environment — single mechanical seal, double mechanical seal, and packed gland options all available.
Hydrostatic, flow-rate, discharge pressure, vibration, and temperature test benches verify every pump before shipment.
Hundreds of molded stators in multiple compounds and sizes are kept in stock to support short lead times for both standard and spare-parts orders.
Our engineering team in Hengyang welcomes qualified buyers, distributors, and OEM partners. Tell us about your application and we will arrange a tour, a video walkthrough, or a sample build.
