Sigma blade mixer

batchfor liquidsfor the cosmetics industry

Product Overview
Liquid soap sigma mixer uses the powerful shearing and tumbling action of its double σ-shaped blades to evenly disperse soap base, fragrance, colorant and other additives, improving product quality stability and production efficiency. The sigma kneader is a heavy-duty, high-efficiency mixing device designed for uniform mixing and vigorous kneading of high-viscosity materials and plays a crucial role in mixing, kneading and grinding operations.

Applications

• Production and processing of liquid soap, liquid detergent, soap noodle, soap & detergent
• Adhesives, pharmaceuticals, polyester compounds, food, chemicals, dyes, pigments, fiberglass and confectionery

Construction and Materials
The main body consists of a welded double U-shaped mixing tank with two Z-shaped (∑-shaped) agitators rotating in opposite directions to generate strong shearing and kneading forces. To achieve optimal mixing results, the gap between agitators and tank walls is kept minimal. The mixing tank and paddles can be fabricated from low carbon steel, SS304 or SS316 to meet different material and process requirements.

Working Principle
The two ∑-shaped agitators installed in a double U-shaped mixing cylinder rotate in opposite directions. High-viscosity materials are subjected to shearing, squeezing, tumbling and friction to achieve uniform mixing, kneading and dispersion. The small clearance between agitators and cylinder walls ensures thorough processing during circulation, making the machine suitable for high-viscosity systems such as hot melt adhesives, silicone rubber, sealants and inks.

Primary Uses in Soap Production

• Soap base mixing
• Uniform dispersion of fragrances and colorants
• Additive mixing
• Improving material uniformity
• Reducing agglomeration and clumping

Technical Specification of Sigma Mixer (table)
Equipment colume: 5-10000L
Working volume: 60-70%
Gear reducer: Hardened gear reducer, 1 set
Inverter: Heavy-duty inverter, 1 set
Shaft drive: Two stirring shafts driven by double-gear mechanism with gear tank
Heating medium: External circulation heating via hot oil circulation
Cylinder structure: W-shaped cylinder body; blades polished with high precision to prevent sticking and to provide excellent shearing and kneading effects
Inner cylinder: 16mm SS304 stainless steel plate, high-precision polished
Jacket: 14mm Q235-B carbon steel plate with diversion reinforcement plate
Side plates: 35mm Q235-B carbon steel plate + 6mm SS304 lining plate, high-precision polished
Agitator blades: Integral cast steel, coated with 6mm SS304 stainless steel, finely polished; 2 sets
Clearance between blades and cylinder: 3-6mm
Clearance between blades and side plates: 3-4mm
Mixing Speed: Front Blade : Rear Blade = 0~48/32 RPM, Variable Frequency Control
Lid (Open): Hydraulic lid opening device with hydraulic station
Unloading Method: Hydraulic tilting cylinder discharge, tilt angle ≥ 95°
Cylinder head locking mode: Pneumatic locking
Sealing: 8mm-SS304, fluorosilicate strip seal
Agitator shaft seal: Combined structure: stainless steel sleeve + PTFE V-ring + PTFE sealing root (4 sets)
Electronic cabinet: Floor-standing control cabinet with power distribution ammeter/voltmeter; main motor forward/reverse control; hydraulic cover opening and hydraulic tilting cylinder control; temperature display and visual light control

Notes
Liquid soap sigma mixer can be designed according to customer actual needs.

Caractéristiques / spécifications techniques

• Capacity range: 5–10,000 L
• Working fill rate: ~60–70%
• Construction materials: options include low carbon steel, SS304, SS316
• Inner cylinder thickness: 16 mm SS304, high-precision polished
• Jacket thickness: 14 mm Q235-B carbon steel with reinforcement
• Side plate construction: 35 mm Q235-B + 6 mm SS304 lining
• Agitator blades: integral cast steel coated with 6 mm SS304, 2 sets
• Clearances: blade-to-cylinder 3–6 mm; blade-to-side plate 3–4 mm
• Drive & control: hardened gear reducer, heavy-duty inverter, variable frequency speed control; double-gear driven shafts
• Heating: external hot oil circulation
• Lid/opening & discharge: hydraulic lid opening and hydraulic tilting discharge (≥95°)
• Sealing: 8 mm SS304 fluorosilicate strip and combined PTFE-based agitator shaft seal
• Electronic control: floor-standing cabinet with motor forward/reverse, hydraulic controls and temperature display