Hydraulic Pumps

HELICAL ROTOR PUMP

INQUIRY

HELICAL ROTOR PUMP

Jilihydraulics has pioneered, patented and industrialized the fully silent helical rotor pump.

Modern industrial manufacturing increasingly prioritizes optimized working environments, which directly contributes to enhanced operational efficiency, reduced production costs, and improved workplace comfort for on-site personnel. Lowering operational noise levels has become an essential approach to achieving these comprehensive production and environmental optimization goals.

Conventional hydraulic pumps, particularly those operating under high-pressure conditions, generate excessive noise and mechanical vibration that fail to meet the upgraded standards of contemporary industrial equipment and newly developed application scenarios. To resolve this industry pain point, Jilihydraulics has independently developed an innovative silent pump technology that effectively eliminates operational noise and mechanical vibration at the source.

The key factors that trigger noise generation in hydraulic pump operation mainly include fluid cavitation, instantaneous pressure spikes caused by fluid entrapment during meshing processes, and periodic flow ripple and fluid pulsation. Featuring upgraded structural design and precision manufacturing techniques, the helical rotor pump completely eliminates these fundamental noise-inducing defects.

Key Performance & Technical Advantages

Custom optimized rotor profile structure completely prevents fluid entrapment (oil encapsulation)
Superior silent performance: operating noise is 15dB(A) lower on average than standard gear pumps and vane pumps
Ultra-low mechanical vibration and minimal flow pulsation for stable long-term operation
High-efficiency operation across a wide speed range, with a maximum rotational speed of 6,500 RPM
Consistent and reliable performance under variable speed conditions, maintaining stability even during sudden speed fluctuations
Supports high-pressure operation with a maximum working pressure of 300 bar
Covers a wide displacement range from 2.0cc to 200cc to meet diverse application needs
Perfect dimensional and functional compatibility, enabling direct replacement of standard gear pumps

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