Bubble Gum Sigma Mixer Hydraulic Kneading Machine

Two counter-rotating Z-shaped (sigma) blades operate at differential speeds (typically a 3:2 ratio in the tangential design). This creates strong shearing, stretching, folding, and kneading forces that transfer material between the blades, eliminate dead zones, and deliver even mixing with minimal gaps between the blades and trough walls for optimal performance.

The mixer 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. Mild-steel units receive one coat of red oxide primer followed by two coats of epoxy paint. PTFE shaft sealing is provided for food-grade compatibility.

Models range from ASM-50 (approx. 50 L working / 80 L gross capacity) to ASM-3000 (approx. 3000 L working / 3800 L gross capacity). Motor power is available in both general and heavy-duty ratings, with voltage adjustable to local power supply requirements.

Discharge can be performed manually via a hand-wheel-operated mechanism or automatically via a hydraulic tilting system that allows complete emptying of the trough and simplifies cleaning. Additional options include screw extrusion or a bottom ball/automatic valve for controlled or high-volume product removal.

Yes. A jacket for heating or cooling can be fitted, complete with mineral-wool insulation and cladding. Heating options include electric, steam, or circulating hot oil, while cooling is achieved with circulating water—important for managing process temperatures and post-mixing stages.

Key features include precision-machined sigma blades that maintain minimal gaps with the trough walls, a robust U-shaped or trough-style chamber built from thick-gauge metal, a high-capacity motor and heavy-duty gearbox, safety guards and shaft seals, and a hydraulic tilting mechanism for efficient discharge of highly viscous, sticky gum bases.

Optional features include a liquid spray system, vacuum system, blades cooling arrangement, screw system, and automatic valve discharge system. These enhance process flexibility for adding flavors, removing air, or controlling product consistency.

In the tangential design (preferred for higher-viscosity materials such as gum bases), the blades meet tangentially and rotate at different speeds (usually 3:2), delivering intensive shearing and kneading. In the overlapping design, blades rotate at the same speed, provide faster material interchange, and produce lower shear—more suited to lighter-viscosity materials.

It delivers dependable, efficient mixing that improves product quality, reduces processing time, and boosts overall production efficiency. The combination of intense kneading action, food-grade construction, precise temperature control, and easy hydraulic discharge makes it ideal for both traditional chewing gum and modern bubble gum formulations in continuous production lines.