The high-viscosity rotor pump (i.e., cam rotor pump) is a positive displacement pump. Its core characteristic is achieving fluid suction, transfer, and discharge through periodic engagement and separation of rotors within a sealed pump chamber, causing regular changes in working volume. Specifically designed for high-viscosity media, it handles viscosity ranges from 10cp to 2,500,000cp, and is widely used in food, fine chemicals, papermaking, and daily chemical industries to solve high-viscosity fluid transfer challenges unmet by traditional pumps.
(Bonve Pumps Industry General-purpose Rotor Pump)
2. Core Working Principle
The outer rotor with internal teeth drives the inner rotor in co-rotational motion within the pump chamber. The key separating component—crescent plate—strictly isolates the inlet and outlet, forming a three-stage continuous workflow:
Volumetric Expansion (Suction): When rotors disengage, chamber volume increases creating negative pressure, continuously drawing in fluid;
Volumetric Sealing (Transfer): Rotating rotors form sealed chambers, pushing fluid toward the outlet;
Volumetric Compression (Discharge): Rotor re-engagement compresses chamber volume, discharging fluid under high pressure.
This process achieves absolute pulsation-free delivery and grants the equipment strong self-priming capability, completely eliminating flow fluctuations impacting pipeline systems.
(Bonve Pumps Industry Rotor Pump Working Principle)
3. Six Core Features
Extreme Viscosity: Stably conveys media from 10cp to 2,500,000cp, far exceeding centrifugal or screw pumps;
Wide Temperature Operation: Reliably works in -30℃ to +200℃ environments, requiring insulation for high-temperature conditions;
Low-Speed Precision Control: Standard speed 200~600 rpm minimizes fluid shear damage;
Pulsation-Free Output: Non-contact rotor design achieves zero flow fluctuation (vibration <0.5mm/s);
Material Hygiene: Medium-contact surfaces use SUS304/316L stainless steel, complying with food/pharmaceutical hygiene standards;
Long-Term Wear-Free Operation: No physical contact between rotors, theoretical service life >20,000 hours.
Bonve remains "wholeheartedly committed to perfecting rotor pumps," dedicated to providing customized transfer and mixing solutions for global clients. For technical inquiries, model selection, case references, or collaboration regarding Bonve rotor pumps, contact us anytime.
Service Hotline: 0574-87588986 13586591794
Official Website: www.bvpumps.com
Business Email: market@bonvepumps.com
We look forward to partnering with you to drive efficiency and innovation in industrial fluid transfer through precision technology.
