How to Safely Mix High-Viscosity Epoxy & Solvents
Publish Time: 2026-05-22 Origin: Site
Overcoming High-Viscosity Mixing Challenges: Introducing the 30L Explosion-Proof Vacuum Planetary Mixer
Processing materials like epoxy resins, solvent-based coatings, conductive graphite, and ferrite pastes presents a unique set of challenges for manufacturers. These materials are not only highly viscous but often contain volatile solvents that pose serious flammability risks. Furthermore, trapped air during the mixing process can compromise the structural and electrical integrity of the final product.
To address these exact industry pain points, Karvil Machinery has engineered the 30L Explosion-Proof Vacuum Planetary Mixer, providing a pilot-to-production scale solution that guarantees safety, consistency, and zero-dead-spot mixing.
Absolute Safety for Volatile Environments
When working with solvents, standard equipment is simply not an option. Our 30L Planetary Mixer is built from the ground up with a comprehensive explosion-proof (EX) architecture.
Equipped with premium Siemens EX-proof motors (4kW for low speed, 5.5kW for high speed) and a 3kW EX-proof electric heating jacket, the machine ensures safe operation even in hazardous zones. The dedicated EX-control cabinet isolates all electrical components, giving operators complete peace of mind.
Mastering High-Viscosity Dispersion
Thick pastes like graphite slurry and ferrite easily clump and stick to vessel walls. This mixer utilizes a dual-action approach:
Kneading: A low-speed twist/spiral blade operates at 5-50rpm, forcing the dense material to fold and blend.
Shearing: Simultaneously, a high-speed toothed disc operates up to 1500rpm, rapidly breaking down agglomerates.
Scraping: A durable PTFE (Teflon) wall scraper continuously clears the inner walls of the SS304 vessel, ensuring 100% material participation with zero dead zones.
Void-Free Results with Integrated Vacuum
For epoxy and battery slurries, microscopic air bubbles are unacceptable. The integrated vacuum system achieves a strong -0.09 Mpa vacuum degree. Paired with a specialized anti-backflow buffer tank, it safely and continuously extracts entrapped air while the electric heating jacket lowers material viscosity for easier degassing.
Seamless Discharging
One of the biggest headaches in processing high-viscosity materials is getting the product out of the tank. Karvil’s 30L unit eliminates this issue by including an integrated hydraulic discharge press. Once mixing is complete, the press efficiently forces the heavy paste out through the bottom DN32 valve, minimizing waste and manual labor.
Core Technical Highlights
For engineering teams reviewing equipment specifications, here are the vital parameters of this turnkey system:
Model: 30L Vacuum Planetary Mixer
Design / Effective Volume: 32L / 30L
Vessel Dimensions: Inner Diameter: 390mm, Depth: 270mm
Contact Material: SS304 (Mirror Polished) + PTFE Scraper
Heating Method: Electric Heating (Jacketed), 3kW EX-proof heater
Low-Speed Mixing: 4kW Siemens Motor (EX-proof), Twist Blade, 5-50rpm
High-Speed Dispersing: 5.5kW Siemens Motor (EX-proof), Toothed Disc, 0-1500rpm
Wall Scraper Speed: 0 - 30 rpm
Vacuum Degree: -0.09 Mpa (with anti-backflow buffer tank)
Lifting System: Hydraulic Cylinder (Stroke: ≤350mm)
Control System: Schneider Electronics, Fuling Inverter, PLC + Buttons
Ready to Upgrade Your Mixing Process?
Whether you are scaling up your coating production or need a reliable pilot machine for advanced resin formulation, this 30L unit delivers uncompromising performance.