Gasket and Gland Packings Kneader

It uniformly mixes semi-solid, viscous compounds such as rubber, PTFE, graphite, aramid fibers, lubricants, and fillers. These form the base material for sheet gaskets (cut or molded for static sealing) and gland packings (braided or extruded into ropes/rings for dynamic sealing in pumps, valves, and shafts).

Key features include construction in Stainless Steel 316, 304, or Mild Steel; matt/mirror polish or epoxy-painted finishes; manual (hand-wheel) or hydraulic discharge; heating/cooling jackets with mineral wool insulation; tangential ‘Z’ (sigma) blades; PTFE shaft sealing for food-grade compatibility; minimal gap between trough and blades to prevent sticking; and optional spray or vacuum systems.

Tangential action of dual ‘Z’-type (sigma) kneading blades rotating at different speeds toward each other transfers product from one end to the other. Mixing combines bulk movement, stretching, folding, dividing, and recombining. Shearing against the blades and walls reduces solid particle size. Discharge occurs by tilting the container, bottom valves, or an extrusion screw.

In the tangential design (preferred for higher-viscosity materials like adhesives, rubber compounds, dyes, and pigments), blades meet tangentially and typically rotate at different speeds (often a 3:2 ratio). Overlapping blades rotate at the same speed, suit lighter-viscosity materials (e.g., carbon pastes, creams, ointments), provide faster material interchange, but deliver lower kneading and shearing action.

Models range from ASM-50 (approx. 50 L working / 80 L gross capacity, 5–7.5 HP) to ASM-3000 (approx. 3000 L working / 3800 L gross capacity, 100–120 HP). Both general and heavy-duty motor options are offered, and power voltage can be adjusted to local requirements.

Discharge can be manual (hand-wheel operated) or automatic (hydraulic operated). Additional options include an automatic valve discharge system or a screw (extrusion) system for controlled or continuous product removal.

Yes. A jacket for heating or cooling applications can be provided, complete with mineral wool insulation and cladding. Optional blade cooling arrangements further help maintain precise temperatures and minimize heat buildup during mixing of temperature-sensitive materials.

Optional features include a liquid spray system, vacuum system, blades cooling arrangement, screw system, and automatic valve discharge system. Custom configurations for heating/cooling and specialized process needs can also be supplied.

It is used in the pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries. It is especially valuable for producing consistent sealing materials that require homogeneous dispersion for reliable chemical resistance, durability, and performance in chemical processing, petrochemical, and manufacturing applications.