A rubber internal mixer, also commonly known as a Banbury mixer or rubber kneader, is essential equipment in the rubber processing industry for plasticating, mixing, and compounding various rubber materials . This heavy-duty industrial machine is designed to provide homogeneous mixtures of natural rubber, synthetic rubber, and various chemical additives under controlled temperature and pressure conditions .
The rubber internal mixer features a pair of specially shaped rotors that rotate at relative differential speeds within a sealed mixing chamber, creating intensive shearing and dispersing actions that ensure uniform compound quality .
1. Advanced Rotor Design Options
Our rubber internal mixer offers both tangential and intermeshing rotor types to meet diverse mixing requirements . Tangential rotors provide powerful dispersive mixing, while intermeshing rotors deliver superior distributive mixing for critical applications. Rotors are precision-machined using CNC technology and surface-treated with wear-resistant alloy to ensure long service life .
The mixing chamber is fabricated from advanced alloy steel with hard chrome plating or wear-resistant hard metal overlay on all contact surfaces . This construction achieves hardness up to HRC 55, significantly extending the machine's operational lifespan even when processing abrasive compounds .
Equipped with an automatic temperature and time control system, our rubber internal mixer ensures 100% mixing effectiveness . The chamber, rotors, discharge door, and ram are all circulation-cooled, allowing precise temperature management throughout the mixing cycle . This guarantees consistent compound quality batch after batch.
A pressurized and sealed mixing chamber prevents material leakage and environmental pollution .Our advanced hydraulic sealing structure ensures excellent containment of fine powders and additives, maintaining a clean working environment .
Our rubber internal mixer features multiple drive options including inverted AC motors or variable speed DC motors . The PLC control system with touchscreen interface enables programmable multi-step mixing cycles, reducing operation time by up to 30% compared to manual systems
Technical Specifications
|
Model |
Mixing Chamber Volume (L) |
Working Volume (L) |
Rotor Speed (r/min) |
Main Motor Power (kW) |
Weight (T) |
|
LX-35L |
35 |
26 |
4-40 |
110 |
9 |
|
LX-55L |
55 |
41 |
4-40 |
132 |
12.5 |
|
LX-75L |
75 |
56 |
4-40 |
160 |
16 |
|
LX-100L |
100 |
75 |
4-40 |
220 |
22 |
|
LX-160L |
160 |
120 |
4-40 |
400 |
28 |
|
LX-270L |
270 |
202 |
4-40 |
1250 |
45 |
Custom specifications available upon request
Our rubber internal mixer serves diverse industries including:
· Tire manufacturing – for producing various tire compounds
· Automotive rubber products – seals, gaskets, hoses, and bushings
· Wire and cable industry – insulation and sheathing compounds
· Industrial rubber goods – conveyor belts, transmission belts, and rollers
· Medical rubber products – stoppers, caps, and gloves
· Footwear industry – sole compounds and components
· Sporting goods – golf balls and athletic equipment
1. Superior mixing performance – Achieve excellent dispersion with batch-to-batch consistency
2. Energy efficiency – Reduced power consumption compared to conventional mixing methods
3. Low maintenance – Durable construction with easily replaceable wear parts
4. Quick color changes – Easy-clean chamber design minimizes downtime
5. Customizable solutions – Tailored to your specific production requirements
· Hydraulic or pneumatic top ram systems
· Temperature control units (TCU)
· Automatic feeding systems
· Batch-off equipment
· Remote monitoring and IoT integration
Invest in our high-performance rubber internal mixer to elevate your rubber compounding operations. With decades of manufacturing expertise, CE certification, and compliance with international quality standards, our machines deliver reliability, efficiency, and exceptional compound quality . Whether you need a laboratory-scale mixer for R&D or a large industrial unit for mass production, we have the perfect solution for your rubber processing needs.
Contact us today to discuss your requirements and request a customized quotation for your rubber internal mixer!
