Total Volume: 400L
Contact Material: Stainless Steel 304 (mirror polished)
Blades: Heavy-duty Z-shape, cast steel with SS304 cladding
Discharge Method: Hydraulic tilting
Lid: Two sight glasses (one with lighting)
Sealing System: PTFE stuffing box, easy to maintain
Frame & Cover: Carbon steel with protective coating
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NH-400
Karvil
Customizable Design
The Karvil 400L Heavy-Duty Sigma Mixer (Z Blade Kneader) is designed for highly viscous, sticky, and tough materials. This model is widely applied in the production of solid watercolor cakes, adhesives, polymers, sealants, and rubber compounds, where ordinary mixers often fail.
Featuring hydraulic tilting discharge, heavy-duty Z blades, and a robust sealing system, it ensures both high-efficiency mixing and long-term durability.
Heavy-Duty Design: Built to handle hard and sticky materials with high glue content.
Hydraulic Tilting Discharge: Safe, labor-saving, and clean discharge of material.
Durable Blades: Cast steel with stainless steel cladding for longer life.
Easy Maintenance: PTFE stuffing box allows quick seal replacement.
Hygienic Construction: Contact parts in mirror-polished SS304, easy to clean.
Versatile Applications: From watercolors and resins to polymers and sealants.
The sigma mixer (Z blade mixer) works with two blades rotang towards each other at different speeds inside a W-shaped chamber. This movement creates:
Intense shear force – breaks down tough lumps and ensures thorough blending.
Strong kneading action – ideal for sticky and elastic materials like rubber or gum base.
Efficient material turnover – guarantees uniform mixing even for glue-rich or semi-solid compounds.
For sticky and viscous materials, the hydraulic tilting discharge ensures fast and clean emptying, reducing waste and labor effort.
| Feature | Standard Sigma Mixer | Heavy-Duty Sigma Mixer (This Model) |
|---|---|---|
| Blade Type | Standard Z blades | Reinforced heavy-duty Z blades |
| Material Handling | Medium viscosity pastes, doughs | High-viscosity, hard, sticky compounds |
| Construction | Normal stainless steel or mild steel | Cast steel with SS304 cladding, mirror-polished contact parts |
| Durability | For regular production loads | Built to withstand extreme loads and abrasive materials |
| Discharge | Manual or basic hydraulic | Robust hydraulic tilting system |
| Applications | Food pastes, cosmetics, low-viscosity adhesives | Solid watercolors, polymers, rubber compounds, high-viscosity sealants |
Technical Parameters
FAQ
Q1: What is the advantage of a heavy-duty sigma mixer?
A: Compared with standard mixers, the heavy-duty version is designed for extremely viscous and glue-rich materials, with reinforced blades, stronger motors, and more durable construction.
Q2: How does the hydraulic tilting discharge help?
A: It ensures safe, fast, and complete emptying, minimizing residue and operator effort.
Q3: Can I add heating or cooling functions?
A: Yes. Jackets for heating/cooling and temperature control can be added based on your material requirements.
Q4: How do I maintain the sealing system?
A: The PTFE stuffing box design makes seal replacement simple and reduces downtime.
Q5: Can the mixer be customized?
A: Absolutely. Options include vacuum mixing, explosion-proof motors, PLC automation, and custom blade materials.
