High viscosity mixers are essential for processing sealants, adhesives, pastes, gels, and other non-flowing materials that conventional mixers cannot handle effectively. Chinese manufacturers have developed extensive expertise in planetary, butterfly, concentric, and triple-shaft mixer designs, with capacities ranging from laboratory 1 L units through production 12,000 L systems capable of handling viscosities up to 1,500,000 cps. This guide profiles the leading Chinese high viscosity mixer manufacturers in 2026 to help you identify suppliers that match your material, capacity, and process requirements.
What makes a high viscosity mixer different
High viscosity mixers use specialized agitator geometries (planetary blades, butterfly discs, anchor scrapers, concentric shafts) that generate sufficient shear and kneading action to process materials with poor fluidity. Unlike standard propeller or turbine mixers that rely on material flow, high viscosity mixers physically move the material through the mixing zone, ensuring uniform blending even for pastes and gels that do not flow under gravity. Key features include PTFE wall scrapers, vacuum degassing, jacketed heating/cooling, and hydraulic discharge systems.
1. POLYC MACHINE (Shanghai Polyc Technology Co., Ltd.)
Location: Shanghai, China | Founded: 2001 (25 years) | Key products: Planetary mixers, butterfly double-shaft mixers, concentric double-shaft mixers, triple-shaft mixers, hydraulic discharge machines, 1-12,000 L capacity
POLYC MACHINE offers one of the most comprehensive high viscosity mixer ranges in China, covering planetary, butterfly, concentric, and triple-shaft configurations from laboratory 1 L units through production 12,000 L systems. Their planetary mixers handle viscosities up to 1,500,000 cps with vacuum degassing to -0.098 MPa and precise temperature control to 220C. The butterfly double-shaft and concentric double-shaft mixers are designed for medium-to-high viscosity sealants and adhesives, while the triple-shaft mixers combine low-speed stirring, high-speed dispersion, and high-shear emulsification in a single vessel. All models are CE-certified with options for explosion-proof electrical systems and SS304/SS316L metallurgy. POLYC provides 24-hour technical response for export customers.
Best for: Full-range high viscosity mixing from lab to production, with strong customization for vacuum, explosion-proof, and high-viscosity applications up to 1,500,000 cps.
2. Shanghai ELE Mechanical & Electrical Equipment Co., Ltd.
Location: Shanghai | Key products: Planetary mixers, double planetary mixers, high viscosity mixers, vacuum mixers
Shanghai ELE focuses on high-end planetary and double planetary mixers for ultra-high viscosity materials including electronic pastes, conductive adhesives, and specialty chemicals. Their planetary mixers feature precision gearboxes, PTFE scrapers, and integrated vacuum systems with capabilities up to 1,000,000 cps. They offer both standard and custom configurations with PLC control and recipe management for consistent production. Their equipment is widely used in the electronic materials and advanced manufacturing industries.
Best for: Ultra-high viscosity electronic materials, conductive adhesives, and specialty chemicals requiring precise process control and clean operation.
3. Wuxi Hongyuan Chemical Machinery Co., Ltd.
Location: Wuxi, Jiangsu | Key products: Planetary mixers, double-shaft mixers, high viscosity mixers, dispersers
Wuxi Hongyuan offers a solid range of high viscosity mixers including planetary and double-shaft configurations from 5 L to 5,000 L. Their mixers feature standard hydraulic lifting, PTFE scrapers, and variable-speed drives, with options for vacuum operation and jacketed heating/cooling. They are known for competitive pricing on standard production models and reliable delivery times. Their mixers are widely used in the sealant, adhesive, and coating industries across China and export markets.
Best for: Standard production high viscosity mixers at competitive price points for sealants, adhesives, and coatings.
4. Guangzhou Lijie Chemical Machinery Co., Ltd.
Location: Guangzhou, Guangdong | Key products: Planetary mixers, double-shaft mixers, high viscosity mixers, dispersers
Guangzhou Lijie serves the South China market with high viscosity mixers from 5 L to 3,000 L, with particular focus on the silicone sealant and adhesive industries. Their planetary and double-shaft mixers feature robust construction and straightforward maintenance, with options for vacuum operation and hydraulic discharge. They have strong experience serving the construction chemical and adhesive sectors in South China and Southeast Asia, with good after-sales support in the region.
Best for: Silicone sealants, construction chemicals, and adhesives in South China and Southeast Asia.
5. Zhejiang Lishou Machinery Co., Ltd.
Location: Wenzhou, Zhejiang | Key products: Planetary mixers, high viscosity mixers, emulsifiers, reactors, filling machines
Zhejiang Lishou offers high viscosity mixers as part of their integrated chemical equipment range, with planetary and double-shaft models from 10 L to 5,000 L. Their strength lies in turnkey production line solutions that combine high viscosity mixers with dispersers, reactors, and filling machines for complete sealant or adhesive production. Their mixers feature standard hydraulic lifting and variable-speed drives, with options for custom voltages and certifications. They provide comprehensive project management for complete production line installations.
Best for: Turnkey sealant and adhesive production lines requiring multiple processing stages from a single supplier.
6. Jiangsu Yinhong Chemical Equipment Co., Ltd.
Location: Yixing, Jiangsu | Key products: Planetary mixers, double-shaft mixers, high viscosity mixers, dispersers
Jiangsu Yinhong offers mid-range high viscosity mixers from 10 L to 2,000 L, focusing on reliable performance for standard sealant and adhesive formulations. Their planetary and double-shaft mixers feature straightforward hydraulic lifting and variable-speed drives, with robust construction for continuous production use. They offer basic customization for special voltages and certifications, and their machines are priced competitively for budget-conscious buyers. They have good experience serving the pesticide and agrochemical industry for high-viscosity SC formulations.
Best for: Cost-effective standard high viscosity mixers for sealants, adhesives, and agrochemical production.
7. Shenzhen Boyu Industrial Equipment Co., Ltd.
Location: Shenzhen, Guangdong | Key products: Planetary mixers, high viscosity mixers, three-roll mills, dispersers
Shenzhen Boyu serves the South China market with high viscosity mixers from 5 L to 1,000 L, with particular focus on the electronic adhesive and printing ink industries. Their planetary mixers feature compact designs for space-constrained facilities and easy operation for small-to-medium batch production. They offer both standard and custom configurations, with good after-sales support for customers in the Pearl River Delta region and Southeast Asia. Their equipment is widely used in the electronic materials and packaging adhesive industries.
Best for: Electronic adhesives, packaging adhesives, and printing inks in South China and Southeast Asia.
8. Shanghai Root Mechanical & Electrical Equipment Co., Ltd.
Location: Shanghai | Key products: Laboratory planetary mixers, high viscosity mixers, double planetary mixers, dispersers
Shanghai Root specializes in laboratory and pilot-scale planetary mixers for R&D and small-batch production. Their laboratory planetary mixer range covers 0.5 L to 50 L, with precision speed control, vacuum capability, and data logging for formulation development. They offer scale-up support from laboratory to production volumes, helping customers transition from R&D to manufacturing with consistent process parameters. Their equipment is widely used in corporate R&D centers and university laboratories for high viscosity material development.
Best for: Laboratory and pilot-scale high viscosity mixing for R&D, formulation development, and small-batch specialty production.
Key considerations when selecting a high viscosity mixer supplier
Viscosity range and material characteristics: Determine the maximum viscosity of your material and whether it is thixotropic, pseudoplastic, or Bingham plastic. Planetary mixers handle the highest viscosities (up to 1,500,000 cps), while butterfly and concentric mixers are better for medium-to-high viscosity (10,000-500,000 cps). Always request material testing with your actual formulation.
Agitator configuration: Select the appropriate agitator geometry based on your material: planetary blades for ultra-high viscosity and kneading, butterfly discs for medium-to-high viscosity with good turnover, anchor scrapers for wall scraping and heat transfer, and concentric shafts for combining low-speed stirring with high-speed dispersion.
Vacuum and temperature control: If your product is sensitive to air entrainment (bubble-free sealants, electronic materials), confirm the supplier can provide vacuum systems to -0.098 MPa or better. For temperature-sensitive materials, verify jacketed heating/cooling capability and temperature control accuracy.
Discharge method: High viscosity materials often require hydraulic discharge or press-out systems for complete removal. Evaluate whether the supplier offers hydraulic discharge, screw discharge, or tilt-pour options, and confirm discharge efficiency for your specific material.
Key Takeaways
- Chinese high viscosity mixer manufacturers offer planetary, butterfly, concentric, and triple-shaft configurations from laboratory 1 L through production 12,000 L systems, handling viscosities up to 1,500,000 cps.
- POLYC MACHINE offers the most comprehensive range (1-12,000 L) with 25 years of manufacturing experience, CE certification, and strong customization for vacuum, explosion-proof, and ultra-high viscosity applications.
- Shanghai ELE excels in ultra-high viscosity electronic materials, while Guangzhou Lijie focuses on silicone sealants and construction chemicals in South China.
- Always verify viscosity capability with actual material testing, agitator configuration match, vacuum and temperature control options, and discharge method compatibility with your material.
Frequently Asked Questions
Q: What is the maximum viscosity a planetary mixer can handle?
A: Modern planetary mixers with powerful gearboxes and dual-motion agitators can handle viscosities up to 1,500,000 cps (1.5 million centipoise), which covers most high-viscosity pastes, gels, and sealants. POLYC MACHINE planetary mixers are rated for 0-1,500,000 cps with standard configurations. For materials exceeding this range (e.g., very high filler loading pastes), special gearbox configurations and extended mixing times may be required. Always confirm with material testing using your actual formulation.
Q: What is the difference between a planetary mixer and a double planetary mixer?
A: A standard planetary mixer has one set of agitator blades that revolve around the vessel center while rotating on their own axis. A double planetary mixer has two sets of agitator blades that both revolve around the vessel center and rotate independently, creating more intense shear and kneading action. Double planetary mixers are preferred for ultra-high viscosity materials (500,000+ cps) and difficult-to-mix formulations, while standard planetary mixers offer cost-effective performance for medium-to-high viscosity materials (10,000-500,000 cps).
Q: How important is vacuum degassing for high viscosity mixing?
A: Vacuum degassing is critical for products that require bubble-free quality, such as electronic encapsulants, optical adhesives, medical devices, and high-performance sealants. High viscosity materials trap air easily during mixing, and these bubbles can cause defects in the final product including reduced strength, poor adhesion, and visual imperfections. A vacuum system to -0.098 MPa (approximately 29.5 inches Hg) can remove 95%+ of entrained air. For products where air entrainment is not critical (e.g., construction adhesives, general-purpose sealants), vacuum may be optional but still recommended for improved quality.
Q: What is the typical lead time for a custom high viscosity mixer from China?
A: Standard models typically ship within 30-45 days from order confirmation. Custom configurations (special voltages, explosion-proof certification, custom agitator geometries, vacuum systems, hydraulic discharge) may require 60-90 days. Large production systems (5,000 L+) or complete production lines may require 90-120 days including factory acceptance testing. High viscosity mixers with custom gearboxes or special metallurgy may require additional lead time. Always confirm lead time in writing and build buffer time into your project schedule.
Q: Can a high viscosity mixer also perform dispersion and emulsification?
A: Yes, many high viscosity mixers can be configured with additional shafts for high-speed dispersion and high-shear emulsification. Triple-shaft mixers combine low-speed stirring (anchor or frame), high-speed dispersion (toothed Cowles disc), and high-shear emulsification (rotor-stator head) in a single vessel, eliminating the need for multiple processing machines. Concentric double-shaft mixers combine low-speed stirring with high-speed dispersion. These multi-function configurations are particularly useful for formulations that require both high-viscosity mixing and pigment dispersion, such as pigmented sealants, colored adhesives, and thick coatings.
Ready to discuss your high viscosity mixer requirements?
POLYC MACHINE offers free material testing and technical consultation for high viscosity mixer selection. Our process engineers can help you determine the optimal mixer configuration, agitator geometry, and capacity for your specific application. Contact us today to discuss your project, or explore our complete high viscosity mixer product range.