

A soap noodles mixer, also widely known as a soap amalgamator or sigma mixer, is a critical piece of industrial equipment in the soap manufacturing industry. This specialized machine plays a vital role in transforming basic soap noodles into high-quality, market-ready soap bars by ensuring perfect blending of ingredients.
Soap noodles, which are pre-made soap pellets or chips typically derived from vegetable oils, animal fats, or a combination of both, serve as the primary base material in toilet soap and laundry soap production. The soap noodles mixer efficiently combines these noodles with various additives such as colors, perfumes, fragrances, essential oils, preservatives, fillers, and active ingredients like moisturizers, exfoliants, or medicinal compounds. The result is a homogeneous, uniform mixture that is ready for further processing, including extrusion, stamping, and final packaging.
Blending Dynamics & Agitation Architecture
Product Extraction Systems
Tangential Blade Arrangement
Overlapping Blade Arrangement
Model | Capacity – Liters | Motor (H.P.) | ||
Working Capacity approx. | Gross Capacity approx. | General | Heavy Duty | |
ASM – 50 | 50 Liters | 80 Liters | 5 H.P. | 7.5 H.P. |
ASM – 75 | 75 Liters | 110 Liters | 7.5 H.P. | 10 H.P. |
ASM – 100 | 100 Liters | 150 Liters | 10 H.P. | 15 H.P. |
ASM – 150 | 150 Liters | 200 Liters | 15 H.P. | 20 H.P. |
ASM – 200 | 200 Liters | 300 Liters | 20 H.P. | 25 H.P. |
ASM – 400 | 400 Liters | 550 Liters | 30 H.P. | 40 H.P. |
ASM – 500 | 500 Liters | 750 Liters | 40 H.P. | 50 H.P. |
ASM – 750 | 750 Liters | 1150 Liters | 50 H.P. | 60 H.P. |
ASM – 1000 | 1000 Liters | 1500 Liters | 60 H.P. | 70 H.P. |
ASM – 1500 | 1500 Liters | 2100 Liters | 75 H.P. | 80 H.P. |
ASM – 2000 | 2000 Liters | 2600 Liters | 80 H.P. | 90 H.P. |
ASM – 3000 | 3000 Liters | 3800 Liters | 100 H.P. | 120 H.P. |
* Power voltage can be adjusted as per customer’s domestic power voltage requirements.
* Rights of technical improvements & modification reserved.
* Illustrations & dimensions are shown for information purpose only.
A soap noodles mixer (also called a soap amalgamator or sigma mixer) is specialized industrial equipment that blends pre-made soap noodles/pellets with additives such as colors, fragrances, preservatives, fillers, moisturizers, and active ingredients. It creates a homogeneous, uniform mixture ready for extrusion, stamping, and packaging, forming a core part of toilet soap and laundry soap finishing lines.
The mixer is fabricated from premium industrial metals including Mild Steel (MS), SS 304, and SS 316. Surfaces can be customized from refined matte to high-reflectivity mirror polish. Mild steel versions receive an anti-corrosive red oxide primer plus dual-layer epoxy paint protection, with PTFE shaft seals for hygienic, food-grade compatibility.
Counter-rotating differential-speed ‘Z’-profile (sigma) agitators create tangential kneading action that continuously moves material axially. This combines mass displacement, stretching, folding, splitting, and re-merging with intense shearing between the blades and trough walls, delivering streak-free uniformity while eliminating dead zones or product retention.
Tangential ‘Z’ blades (typically at a 3:2 speed ratio) suit high-viscosity, sticky materials like soap dough through intense kneading. Overlapping blades (running at the same speed) are better for lower-viscosity, free-flowing substances. Ultra-tight clearance between blades and the trough wall prevents buildup.
Models range from ASM-50 (approx. 50 L working / 80 L gross, 5–7.5 HP) to ASM-3000 (approx. 3000 L working / 3800 L gross, 100–120 HP), with intermediate sizes and general or heavy-duty motor variants. Power voltage can be customized to local requirements.
Discharge options include manual hand-wheel tilting, automated hydraulic tilting, bottom-mounted outlet valves, or a lateral extrusion screw positioned beside the mixing basin, allowing flexible handling of different viscosities and production setups.
Yes. Adaptable jackets support external heating or cooling. The trough is insulated with high-density mineral wool and protected by external cladding. Optional blade cooling and automated thermal cycling (heating cutoff followed by cooling) are available for temperature-sensitive formulations.
Optional systems include vacuum integration for de-aeration, controlled liquid/fluid spray mechanisms, blade cooling arrangements, screw/extrusion discharge, and automatic valve systems. Specialized modular configurations can be supplied on request.
It delivers superior homogeneity that basic mixers cannot match, shortens mixing time (often 10–30 minutes per batch), lowers labor costs, boosts daily output, supports translucent/opaque/medicated soaps, ensures batch-to-batch consistency, and uses stainless steel contact parts for hygiene and durability.
While optimized for toilet and laundry soap lines, it is widely used in pharmaceutical, nutraceutical, herbal, Ayurvedic, biotech, cosmetic, and chemical industries for high-viscosity mixing and kneading of dense, sticky, or dough-like materials requiring consistent uniformity.
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Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.
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Connect with our engineering team to discuss your specific production requirements. We provide customized, cGMP-compliant machinery solutions designed to optimize your manufacturing facility and maximize output.
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