Bonve Leverages Profound Technical Expertise to Launch High-Performance Cam-Type Twin Rotor Pump Series，The design originates from in-depth exploration and validation of over 3,000 types of fluids across industries including fine chemicals, daily chemicals, food, and papermaking. Its core advantage lies in efficiently, stably, and non-destructively conveying complex fluids that conventional pumps cannot handle.
（The Working Principle of Bonve Rotor Pump Rotors）
After over a decade of continuous R&D and iterative upgrades, Bonve’s cam-type twin rotor pump has now evolved to the fourth generation. This generation is not merely a simple optimization but achieves critical innovations in structural design, fully incorporating valuable application experience accumulated by global customers during long-term use. The result is a significant extension of the pump’s overall service life, reduced maintenance frequency and costs, and further enhanced reliability and adaptability in harsh operating conditions. It is these continuous improvements that have enabled the fourth-generation Bonve cam-type twin rotor pump to gain recognition and application across broader industrial sectors, becoming key equipment for solving challenging fluid transfer problems.
Core Working Principle
The core driving force of the Bonve cam-type twin rotor pump stems from its precision synchronous gear transmission system. Located within a robust pump housing, this system comprises a set of finely machined high-precision gears. The main drive shaft (typically connected to a motor or reducer) and the auxiliary shaft achieve exact 1:1 rotational speed matching through these synchronous gears, ensuring absolute synchronization in power transmission.
Driven by the synchronous gears, a pair of special rotors (cams) mounted on the two shafts begin to rotate in precisely synchronized opposite directions. Their rotational motion directly causes periodic volume changes within the pump chamber:
1.Suction Process: As the rotors disengage and rotate away from the meshing point, the enclosed volume formed between the rotors and the pump casing on the suction side gradually increases, creating a partial vacuum (i.e., high vacuum level). This forcibly draws the medium from the suction pipeline into the pump chamber.
（The Working Principle of Bonve Rotor Pump Rotors）
2.Discharge Process: As rotation continues, the drawn medium is enclosed within cavities formed by the two rotors and the pump casing, then smoothly pushed toward the discharge side along the pump chamber. When the rotors approach the meshing point again, the enclosed volume continuously decreases, exerting strong compression on the medium (generating high discharge pressure), ultimately forcing the medium into the outlet pipeline.
A key technical highlight of this design is that a meticulously calculated and machined micro-sized, constant gap is always maintained between the rotors and between the rotors and the pump body. The existence of this gap means:
· Zero Metal-on-Metal Contact Friction: The rotors operate without mechanical contact during rotation, eliminating wear, heat generation, and power loss caused by friction in traditional pumps.
· Ultra-Long Service Life: Frictionless operation fundamentally extends the service life of core components (rotors, pump body) and reduces failure rates.
· Non-Destructive Medium Transfer: This "shear-free" positive displacement transfer method is extremely gentle on the medium. It does not damage suspended solid particles, long fibers, or sensitive components (e.g., pulp in food, catalyst particles in chemical products, flocs in wastewater).
· Chemical Compatibility: As the pumping process relies neither on high-speed shearing nor agitation, and key wetted parts can be made of corrosion-resistant materials (e.g., stainless steel, special alloys, coatings, or rubber) according to medium properties, the pump induces virtually no adverse physical or chemical reactions. This makes it especially suitable for the safe transfer of corrosive fluids.
Bonve will always uphold the philosophy of "wholeheartedly crafting rotor pumps", dedicated to providing global customers with customized conveying and mixing solutions. If you have any technical consultations, selection requirements, case references, or other cooperation intentions regarding Bonvei rotor pumps in the future, please feel free to contact us. Service Hotline: 0574-87588986 / 13586591794 Official Website: www.bvpumps.com Business Email: market@bonvepumps.com Looking forward to joining hands with you, driving the efficiency and innovation of industrial fluid transmission through precise technology.
