Smooth Transmission, Long Service Life & High Reliability – An Overview of HCHC New Favorite for Lubrication & Conveying Applications. CBRH Series Gear Pumps

For a long time, foreign brands have held a monopoly on hydraulic components for lubrication and medium conveying systems. This is mainly because such gear pumps set strict technical, manufacturing and service-life standards that create high industry entry barriers.

After years of in-depth research on helical gear technology, CHANGYUAN HYDRAULIC has made breakthroughs in gear machining and heat treatment correction processes. We repeatedly tested and refined every production detail, then successfully launched the CBRH series gear pumps for lubrication and conveying with displacements ranging from 16mL/r to 200mL/r – all models have passed mass production verification. Custom models with displacements between 200mL/r and 600mL/r are available upon customer request.

Standout Performance Makes CBRH Series Gear Pumps a Top Competitor in the Industry

Independently developed by CHANGYUAN HYDRAULIC, the CBRH series adopts a helical gear structure. It delivers low pressure pulsation, smooth medium delivery and stable power transmission. We also optimized gear tooth profiles and upgraded heat treatment correction technology to further cut operating noise during work.

Besides, high-pressure resistant shaft oil seals are fitted, which can withstand pressure up to 30 bar and guarantee reliable sealing. Most competing products on the market only support 0.5–10 bar pressure resistance.

All sealing rings of the CBRH series are made of HNBR (hydrogenated nitrile butadiene rubber). The material offers excellent sealing performance and wide temperature adaptability, enabling stable operation at temperatures from -40℃ to 150℃.

Constructed entirely from cast iron with no internal seals, these gear pumps support conveying a wide variety of media. We have completed testing on more than 30 types of media with ideal results, including printing ink, emulsion, dye, grease, antifreeze, gear oil, waste oil, drilling oil, diesel oil, brake fluid, quenching oil, resin, fuel oil, hydraulic oil, isocyanate, refrigeration oil, adhesive, plastic raw material, engine oil, paraffin, polyol, lubricating oil, cutting oil, heavy oil, heat transfer oil, softening oil, wire drawing wax and wax. Feel free to contact us if you need to transport other special media.

The CBRH series works with media whose kinematic viscosity falls between 12–20000 mm²/s, covering nearly all common working conditions. It also boasts great expandability and can be fitted with safety valves, special bearings and other accessories. The standard safety valves support adjustable pressure from 5 bar to 15 bar; customized safety valves for pressures over 15 bar are available on request.

Standard Technical Parameters of CBRH Series Gear Pumps

Application Fields of CBRH Series Gear Pumps

Driven by the booming new energy industry, wind power capacity is expanding rapidly. Our CBRH series gear pumps have undergone mass field verification in wind power projects, earning wide recognition for stable quality and outstanding reliability.

Beyond wind power, the pumps deliver superior performance across many other sectors, including machine tools, vacuum machinery, marine engines, speed reducers, centralized lubrication systems, filling equipment, printing machinery, centrifugal separators, refrigeration units, generators, gearboxes, plain bearings, rubber & tire manufacturing, heat transfer equipment, PUR processing equipment and compressors.

We warmly welcome partners from all related industries to get in touch with us for cooperation inquiries.