Sigma mixer, or double Z blade kneader, for very viscous masses over 500,000 cP, 1–3,000 L, with tilting discharge or a screw extruder. Request a quote.
| Type | Batch sigma mixer with two Z blades |
| Product viscosity | Over 500,000 cP |
| Versions | Standard or with screw extruder below the blades, on its own drive |
| Total volume | 1–3,000 L |
| Working volume | 0.6–1,800 L |
| Blade power | 1.1–110 kW |
| Extruder screw power | 0.55–45 kW |
| Blades | Two cast Z blades at different speeds, in a 3 to 2 ratio |
| Trough | W shaped, made of two half cylinders, with thicker walls than mixers for powders |
| Materials | Stainless steel 304, 316 or 316L for food and pharma; hardened steel, Hastelloy or titanium for abrasive or corrosive products; carbon steel where cost comes first |
| Internal finish | Mirror polished, 180 grit |
| Heating and cooling | Dimple jacket, half pipe coil or full jacket |
| Drive | Helical gearbox for high torque; fluid coupling or frequency drive for soft start |
| Discharge | Tilting, bottom valve or screw extruder |
| CE marking | Yes |
| Warranty | 60 months |
| Model | Total volume (L) |
| UZX-MZ-1 | 1 |
| UZX-MZ-5 | 5 |
| UZX-MZ-15 | 15 |
| UZX-MZ-50 | 50 |
| UZX-MZ-100 | 100 |
| UZX-MZ-150 | 150 |
| UZX-MZ-200 | 200 |
| UZX-MZ-300 | 300 |
| UZX-MZ-400 | 400 |
| UZX-MZ-600 | 600 |
| UZX-MZ-800 | 800 |
| UZX-MZ-1000 | 1,000 |
| UZX-MZ-2000 | 2,000 |
| UZX-MZ-3000 | 3,000 |
| Model | Total volume (L) |
| UZX-MZE-1 | 1 |
| UZX-MZE-5 | 5 |
| UZX-MZE-15 | 15 |
| UZX-MZE-50 | 50 |
| UZX-MZE-100 | 100 |
| UZX-MZE-150 | 150 |
| UZX-MZE-200 | 200 |
| UZX-MZE-300 | 300 |
| UZX-MZE-400 | 400 |
| UZX-MZE-600 | 600 |
| UZX-MZE-800 | 800 |
| UZX-MZE-1000 | 1,000 |
| UZX-MZE-2000 | 2,000 |
| UZX-MZE-3000 | 3,000 |
The UZX-984 sigma mixer kneads very viscous masses, over 500,000 cP, with two Z shaped blades. It is built for plants that make sealants, adhesives, rubber, chewing gum, technical pastes and soap, where ribbon or paddle blenders run out of torque. Sizes range from a 1 L lab unit to 3,000 L.
It is also called a Z blade mixer, sigma blade mixer, double arm kneader or sigma kneader. It comes in two versions, standard and with a screw extruder below the blades, which helps the mixing and discharges the mass.
| Parameter | Value |
|---|---|
| Type | Batch sigma mixer with two Z blades |
| Product viscosity | Over 500,000 cP |
| Versions | Standard or with screw extruder below the blades, on its own drive |
| Total volume | 1–3,000 L |
| Working volume | 0.6–1,800 L |
| Blade power | 1.1–110 kW |
| Extruder screw power | 0.55–45 kW |
| Blades | Two cast Z blades at different speeds, in a 3 to 2 ratio |
| Trough | W shaped, made of two half cylinders, with thicker walls than mixers for powders |
| Materials | Stainless steel 304, 316 or 316L for food and pharma; hardened steel, Hastelloy or titanium for abrasive or corrosive products; carbon steel where cost comes first |
| Internal finish | Mirror polished, 180 grit |
| Heating and cooling | Dimple jacket, half pipe coil or full jacket |
| Drive | Helical gearbox for high torque; fluid coupling or frequency drive for soft start |
| Discharge | Tilting, bottom valve or screw extruder |
| CE marking | Yes |
| Warranty | 60 months |
The model code gives the total volume. The standard version is coded UZX-MZ and the extruder version UZX-MZE. The working volume is 60% of the total volume.
| Model | Total volume (L) | Working volume (L) | Blade power (kW) | Dimensions L × W × H (mm) |
|---|---|---|---|---|
| UZX-MZ-1 | 1 | 0.6 | 1.1 | 640 × 690 × 650 |
| UZX-MZ-5 | 5 | 3 | 1.1 | 1,250 × 580 × 406 |
| UZX-MZ-15 | 15 | 9 | 2.2 | 1,180 × 1,000 × 1,300 |
| UZX-MZ-50 | 50 | 30 | 4 | 1,850 × 1,100 × 1,500 |
| UZX-MZ-100 | 100 | 60 | 5.5 | 2,050 × 1,250 × 1,650 |
| UZX-MZ-150 | 150 | 90 | 7.5 | 2,290 × 1,400 × 1,700 |
| UZX-MZ-200 | 200 | 120 | 11 | 2,530 × 1,450 × 2,100 |
| UZX-MZ-300 | 300 | 180 | 15 | 2,730 × 1,550 × 2,200 |
| UZX-MZ-400 | 400 | 240 | 22 | 2,850 × 1,600 × 2,250 |
| UZX-MZ-600 | 600 | 360 | 30 | 3,070 × 1,680 × 2,300 |
| UZX-MZ-800 | 800 | 480 | 37 | 3,450 × 1,850 × 2,450 |
| UZX-MZ-1000 | 1,000 | 600 | 45 | 3,600 × 1,900 × 2,550 |
| UZX-MZ-2000 | 2,000 | 1,200 | 75 | 4,800 × 2,800 × 3,100 |
| UZX-MZ-3000 | 3,000 | 1,800 | 110 | 5,900 × 3,900 × 3,500 |
| Model | Total volume (L) | Working volume (L) | Blade power (kW) | Screw power (kW) | Dimensions L × W × H (mm) |
|---|---|---|---|---|---|
| UZX-MZE-1 | 1 | 0.6 | 1.1 | 0.55 | 1,040 × 620 × 680 |
| UZX-MZE-5 | 5 | 3 | 1.1 | 0.55 | 1,350 × 650 × 800 |
| UZX-MZE-15 | 15 | 9 | 2.2 | 1.1 | 1,480 × 930 × 1,320 |
| UZX-MZE-50 | 50 | 30 | 4 | 1.5 | 1,800 × 980 × 1,340 |
| UZX-MZE-100 | 100 | 60 | 5.5 | 3 | 2,100 × 1,285 × 1,390 |
| UZX-MZE-150 | 150 | 90 | 7.5 | 4 | 2,425 × 1,255 × 1,520 |
| UZX-MZE-200 | 200 | 120 | 11 | 5.5 | 2,500 × 1,270 × 1,650 |
| UZX-MZE-300 | 300 | 180 | 15 | 5.5 | 3,000 × 1,450 × 1,850 |
| UZX-MZE-400 | 400 | 240 | 22 | 7.5 | 3,200 × 1,530 × 1,800 |
| UZX-MZE-600 | 600 | 360 | 30 | 11 | 3,450 × 1,750 × 2,100 |
| UZX-MZE-800 | 800 | 480 | 37 | 15 | 3,800 × 1,480 × 2,200 |
| UZX-MZE-1000 | 1,000 | 600 | 45 | 15 | 4,500 × 1,600 × 2,240 |
| UZX-MZE-2000 | 2,000 | 1,200 | 75 | 30 | 5,850 × 1,800 × 2,600 |
| UZX-MZE-3000 | 3,000 | 1,800 | 110 | 45 | 6,520 × 2,180 × 3,130 |
Power depends on the product and may vary. Dimensions are approximate, and we confirm them in the quote together with the power.
The two Z blades turn towards each other in the W shaped trough, at different speeds. The fast blade kneads and shears the mass, while the slow blade feeds it back into the zone between the blades. No material stays still at the trough ends.
With every turn the mass is compressed, stretched, folded and kneaded. The blades pass close to the wall and partly overlap, so they wipe the trough and leave no unmixed zones, even with sticky pastes.
In the extruder version, the screw below the blades runs in reverse during mixing and lifts the mass towards the blades. At the end it runs forward and discharges the product. The screw has its own drive.
• Handles masses over 500,000 cP that no longer respond to turbulent mixing.
• Blades at different speeds, in a 3 to 2 ratio, keep returning the mass to the kneading zone.
• The extruder version removes dead zones at the bottom of the trough, speeds up mixing and discharges without product loss.
• Mirror polished interior, 180 grit, so the product sticks less.
• The same blade tip speed from 1 to 3,000 L, so a recipe tuned in the lab repeats in production.
• Food, for chewing gum base, heavy doughs, chocolate masses, caramel and fondants.
• Sealants, such as butyl sealants, mastics and highly filled polyester putties.
• Adhesives, resins, pigments, lubricants and silicone rubber.
• Rubber compounds, thermoplastic elastomers, masterbatches and brake linings.
• Cosmetics, such as lipsticks, balms, creams, soaps and gels.
• Pharmaceuticals, such as adhesive plasters, ointments and viscous active ingredients.
• Electronics and batteries, for conductive silver pastes, silicone based thermal materials and battery pastes.
• Printing inks, pigment concentrates and ceramic pastes.
A sigma mixer is the right choice when the mass no longer responds to turbulent mixing. If the product sticks to the agitator and turns with it as one lump, a ribbon or paddle blender is no longer enough.
The working volume is 60% of the total volume, so a 120 L batch fits the 200 L model. Choose the extruder version for sticky products that are hard to discharge, or when you want to mix in less time.
For liquids of low to medium viscosity, see the high speed disperser UZX-983 with 1, 2 or 3 shafts, 5–8,000 L. For air-free creams and emulsions, the right machine is the vacuum emulsifying mixer UZX-985 for creams, emulsions and sauces, 10–2,000 L.
• Heating and cooling jacket for exothermic reactions.
• Vacuum execution to remove air and volatiles from dense pastes.
• Vacuum mixing and drying, with a condenser and a tank for solvent recovery.
• Quick release of the blades and screw for complete cleaning between batches.
• Non-stick PTFE lining for very sticky sealants.
• Spray nozzles for metering plasticizers or binders into the mass.
• Manual loading through covers, pneumatic or vacuum conveying, bag dump stations and drum lifts.
• Weighing and batch monitoring, PLC with touchscreen, recipes and traceability.
• Cleaning in place (CIP) and hygienic seals.
• ATEX execution for explosive atmospheres.
The price depends on the volume, the version, the materials and the options, such as the jacket, vacuum or extruder. Send us your product, its viscosity, the batch size and the working temperature. UZINEX engineers will recommend the configuration and send you a quote.
If the sigma mixer is part of a project funded by EU grants or the Romanian recovery plan (PNRR), we help you before the application is written. The technical advice is free. Together we set the volume, version and options, and you receive the technical documents for the file.
• Transport, installation and commissioning included, on site, with operator training.
• 60 month warranty, standard across the catalogue.
• Nationwide service in Romania, with an on-site response within 24 hours.
• Technical documents for public tenders in Romania (SEAP/SICAP).
• Configuration to order, with the materials, jacket and discharge that suit your product.
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