Ultra-quiet helical rotor pumpCBXB4 Ultra-quiet helical rotor pump

Our CBXB Ultra-Silent Gear Pump is equipped with independently designed high-precision helical gears featuring optimized curve parameters, delivering exceptional noise reduction performance. Under rated operating conditions, noise levels are below 55 dB(A)—an average reduction of 15 dB compared to traditional external gear pumps.

The front cover incorporates a reduced high-pressure zone, while the rear cover integrates a high-pressure pin mechanism that eliminates radial force. Combined with a dedicated floating bearing, the pump offers high overall load capacity and outstanding reliability.

Its arc-shaped tooth profile and helical gear design ensure zero backlash during meshing, enabling nearly continuous and quiet fluid flow while eliminating oil trapping between teeth.

Within the specified pressure and speed ranges, the pump operates with significantly reduced noise and 75% lower flow pulsation, greatly minimizing equipment vibration. The ultra-low pulsation also reduces vibration in other hydraulic system components, contributing to lower overall machine noise.

The CBXB series achieves a volumetric efficiency of over 92% under rated conditions, and also delivers superior volumetric efficiency at low speeds compared with conventional gear pumps.

Compared with traditional external gear pumps, it features lower noise, lower pulsation, higher efficiency and longer service life, and can directly replace standard involute external gear pumps.

Additionally, it can be paired with various motor types, available in coaxial or non-coaxial configurations to meet customer requirements.