4kW Cam Rotor Pump for High-Viscosity Materials

Specifications

Standard configurations are shown below. Alternative capacities, materials and automation levels are available for custom projects.

Description

The cam rotor pump is a high-performance positive displacement pump engineered for the reliable and efficient conveyance of high-viscosity, non-Newtonian, and particulate-containing fluids across industrial sectors. Its core structure consists of two intermeshing cam-shaped rotors housed in a precision-machined pump casing; the rotors rotate in opposite directions, forming a series of sealed, fixed-volume cavities between the rotor lobes, casing, and end covers. As the rotors turn, these sealed cavities continuously draw in material from the suction port, transport it along the inner wall of the casing to the discharge port, and expel the material through the volumetric change caused by rotor meshing—achieving stable, pulse-free fluid transfer with a flow rate directly proportional to the rotational speed.

Designed with a low-shear operating principle, the pump minimizes mechanical shear and turbulence during material conveyance, effectively preserving the integrity of sensitive ingredients, suspended particles, and molecular structures of the fluid. This makes it an ideal choice for handling shear-sensitive and high-viscosity media (viscosity range typically from 100 cP to over 1,000,000 cP) such as pastes, creams, gels, slurries, and emulsions. The pump’s rotor and casing are fabricated from food-grade, pharmaceutical-grade, or industrial stainless steel (e.g., 304/316L) with a polished surface finish, ensuring compliance with strict hygiene standards (e.g., GMP) and preventing material adhesion or retention. Its seal system (mechanical seal, lip seal, or sanitary seal) is optimized for leak-proof operation, even under high pressure and high-viscosity working conditions.

In terms of performance and usability, the cam rotor pump features stable flow output, no priming required for self-priming capability, and strong adaptability to variations in inlet pressure and material viscosity. The modular structural design allows for easy disassembly, cleaning, and maintenance—rotors, seals, and wear parts can be quickly replaced without complex tools, reducing downtime for production lines. It is also highly compatible with variable frequency drive (VFD) systems, enabling stepless flow regulation to match different process requirements. Widely applied in the pharmaceutical, food and beverage, cosmetic, and fine chemical industries, the cam rotor pump is used for conveying a wide range of materials including pharmaceutical ointments, syrups, herbal extracts, food pastes, sauces, jams, cosmetic creams, lotions, adhesives, and lubricating greases. It is suitable for various process links such as material transfer, batching, filling, and circulation, and can be integrated into fully automated production lines as a core conveying component, delivering consistent, hygienic, and efficient material handling solutions for industrial production.

Key Performance Highlights

1.Low shear, non-destructive to material components and particulate matter 2.Sanitary design, GMP compliant, suitable for food and pharmaceutical production 3.High self-priming capacity, stable pulse-free flow, adjustable flow rate 4.Wear-resistant, corrosion-resistant, adaptable to harsh working conditions 5.Easy disassembly and cleaning, low maintenance costs 6.Compact structure, easy integration with automated production systems

Applications

Typical products and production contexts for this equipment:

Conveying pharmaceutical ointments, syrups, herbal extracts, drug pastes, suspension preparations and other high-viscosity pharmaceutical raw materials and semi-finished products; applicable to GMP-compliant clean production processes such as material batching, filling and in-line circulation.

Transferring jams, sauces, pastes, butter, cheese, fruit puree, honey, edible oil and other viscous food materials; suitable for hygienic production links including mixing feeding, filling and material recycling.

Conveying creams, lotions, facial masks, hair gels, body butters and other high-viscosity cosmetic semi-finished products/finished products; applicable to automated production processes such as emulsification feeding, filling and product circulation.

Handling adhesives, lubricating greases, resin pastes, paint slurries and other viscous chemical materials; suitable for industrial material transfer and batching processes with particle-containing medium requirements.

Competitive advantage

• Low-shear Material Conveyance
• Minimizes mechanical shear during transfer, effectively preserving the integrity of shear-sensitive ingredients, suspended particles and molecular structures of high-viscosity media, suitable for pharmaceutical, food and cosmetic materials with strict component requirements.
• Sanitary & Hygienic Design
• Wetted parts adopt food/pharmaceutical grade SUS304/SUS316L with polished surface (Ra≤0.8μm), no material retention or dead angle; compliant with GMP/3A/FDA hygiene standards, meeting the clean production requirements of food and pharmaceutical industries.
• Stable & Pulse-free Flow Output
• Positive displacement working principle ensures flow rate is directly proportional to rotational speed, realizing stable, continuous and pulse-free conveyance; high suction lift (≤5m) and self-priming capacity, adaptable to various material transfer conditions.
• Strong Material Adaptability
• Wide viscosity range (100~1,000,000 cP) for conveying high-viscosity, non-Newtonian and particulate-containing materials; corrosion and wear resistance of key parts, applicable to multi-scenario industrial production.
• Easy Maintenance & Modular Structure
• Modular design of rotors, seals and wetted parts enables quick disassembly, cleaning and replacement without complex tools; low wear rate of core components, reducing production downtime and maintenance costs.
• Flexible & Intelligent Compatibility
• Support variable frequency drive (VFD) for stepless flow regulation, matching different process requirements of batching, filling and circulation; compact structure, easy to integrate into fully automated production lines.
• Reliable Sealing & Leak-proof
• Optimized sanitary mechanical seal/lip seal system, ensuring excellent leak-proof performance under high pressure and high-viscosity working conditions, avoiding material loss and environmental pollution.