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.

Vertical Kneader

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 capacity100L – 3000L
Blade typeZ 型 / Σ型 (Z-type / Sigma-type)
Agitator speed0 – 45 rpm(变频可调)
Motor power11 – 110 kW
Vacuum rating-0.098 MPa
Contact material304 / 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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