Vertical Kneader
Z-blade vertical agitation for high-viscosity mixing and kneading
The vertical kneader uses vertically arranged Z-type blades that rotate in opposite directions inside the mixing vessel, generating strong shear, folding and squeezing action on high-viscosity materials. Its compact structure saves floor space and suits mixing and kneading of silicone sealant, hot-melt adhesive and battery slurry.

How it Works
During operation, two Z-type blades rotate in opposite directions inside the vertical vessel. The clearance between blades and vessel wall is only 2-5mm, so the material is repeatedly sheared, folded and squeezed between the blades and wall for uniform kneading. A hydraulic lift raises the agitator out of the vessel for easy charging, cleaning and batch change.
Features at a Glance
Z-blade design
Small clearance between blade and wall delivers strong shear, uniform kneading and no dead zone.
Hydraulic lift
The agitator lifts as a whole for fast batch change and cleaning; a vacuum hood is available for vacuum kneading.
Variable speed
Variable frequency drive adapts to kneading process requirements of different viscosities.
Stainless steel contact parts
Contact parts are made of 304/316L stainless steel, meeting food and pharmaceutical grade cleaning requirements.
Technical Specifications
| Working capacity | 100L – 3000L |
|---|---|
| Blade type | Z 型 / Σ型 (Z-type / Sigma-type) |
| Agitator speed | 0 – 45 rpm(变频可调) |
| Motor power | 11 – 110 kW |
| Vacuum rating | -0.098 MPa |
| Contact material | 304 / 316L 不锈钢 |
| Heating | 导热油 / 蒸汽 / 电加热(可选) |
| Discharge | 翻缸 / 底部出料 / 螺杆出料(可选) |
Frequently Asked Questions
The vertical kneader handles pasty materials from 10,000 cP up to several million cP, such as silicone sealant, hot-melt adhesive and gum base. The upper limit depends on material properties and motor configuration; a sample test is recommended.
Vertical models are compact and suit small-medium batches with frequent changeover; horizontal models offer larger batch capacity for medium-large continuous production. Choose based on batch size, viscosity, workshop space and discharge requirements.
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.
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