Double Z Blade Kneader

It uses two counter-rotating Z-shaped (sigma) blades mounted in a W-shaped trough. The blades operate at differential speeds in opposite directions, creating powerful shearing, folding, stretching, and recombining actions that break down agglomerates and produce highly uniform mixtures.

The machine is available in Stainless Steel 316, Stainless Steel 304, and Mild Steel. Stainless steel versions can be finished to matt or mirror polish as required, while mild steel models receive one coat of red oxide and two coats of epoxy paint.

Discharge can be manual (hand-wheel operated) or automatic (hydraulic operated). Additional options include an automatic valve discharge system or a screw/extruder system for controlled product removal. Tilting of the container is also possible.

Yes. A jacket for heating or cooling applications can be provided, along with mineral wool insulation and cladding. Optional blade cooling arrangements help manage heat buildup, especially with viscous or abrasive compounds.

In the tangential design (preferred for higher-viscosity materials such as adhesives, rubber compounds, dyes, and pigments), the blades meet tangentially and typically rotate at different speeds (often a 3:2 ratio). In the overlapping design (suited to lighter-viscosity materials such as creams, ointments, and carbon pastes), the blades overlap and rotate at the same speed, offering faster material interchange but lower kneading and shearing action.

Models range from ASM-50 (approx. 50 liters working / 80 liters gross) to ASM-3000 (approx. 3000 liters working / 3800 liters gross). Motor power varies by model and duty rating (general or heavy-duty), and voltage can be adjusted to meet local power requirements.

It is widely used in the pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries for processing high-viscosity compounds such as adhesives, rubber, polymers, food products, and other viscous materials.

Optional accessories include a liquid spray system, vacuum system, blades cooling arrangement, screw system, and automatic valve discharge system. Custom heating/cooling jackets and specialized configurations are also available on demand.

Key features include tangential Z-blades for uniform mixing, PTFE shaft sealing (suitable for food-grade applications), a minimum gap between the trough inner shell and blades to reduce product sticking, and robust heavy-duty construction that can incorporate wear-resistant materials for abrasive formulations.