50L Laboratory Vertical Kneader

It is suitable for adhesives, organic silicon, electronic materials, new energy battery slurries, ceramic slurries, rubber compounding, cosmetic pastes, and polymer composites. Final selection should be based on material viscosity, solid content, temperature, and vacuum requirements to confirm the kneader configuration.

A 20L unit is better for small-sample testing and formulation screening; the 50L vertical kneader suits pilot scale-up, process validation, and small-batch production; and a 100L model is better for process validation closer to mass production. If you need to scale up from the lab to production, the 50L kneader is usually a flexible intermediate option.

Yes. It can be customized with an explosion-proof motor, PLC/HMI control, vacuum system, thermal oil heating, SUS316L material, special blade types, and discharge methods. Please provide material viscosity, process temperature, and site power conditions to confirm the final kneader configuration.

To ensure proper kneading performance and stable motor load, the filling coefficient is generally recommended between 0.55 and 0.70. This means the effective loading per batch for a 50L kneader is typically around 27.5L-35L, subject to the material’s specific gravity and viscosity.

A kneader is a mixing machine for high-viscosity materials. Two Z-type (or sigma-type) blades rotate in opposite directions inside the vessel, producing shear, folding and squeezing on the material for uniform kneading. It is widely used for silicone sealant, hot-melt adhesive, butyl rubber and battery slurry.

Vertical kneaders have a vertical vessel with blades entering from above - compact, space-saving, suitable for small-medium batches and frequent changeover. Horizontal kneaders have a horizontal vessel with larger batch capacity, suitable for medium-large production. The choice depends on batch size, workshop space and discharge method.

Kneaders handle pasty materials from 10,000 cP up to several million cP - the range that dispersers and mixers cannot cover. The upper limit depends on blade type, motor configuration and material properties.

The three cover different viscosity ranges. High-speed dispersers handle low-to-medium viscosity slurries below 10,000 cP through high-speed shear; planetary mixers use revolution plus rotation for pastes from tens of thousands to hundreds of thousands cP; kneaders are dedicated to materials above 100,000 cP, including semi-dry compounds, using folding and squeezing action - a common choice for sealants, hot-melt adhesives and battery slurry.