Anti-corrosion extrusion twin-screw PROMIX-26

high durabilitywear-resistantfor rubber

Description
A twin screw extruder is continuous processing equipment using two rotating screws inside a heated barrel to feed, melt, mix, vent, pressurize and discharge materials for compounding, granulation, pharmaceutical extrusion, food extrusion and specialty material production. The core applications for this model include plastic modification, PVC granulation, bio-plastic materials, rubber and plastic recycling granulation, new energy (lithium battery separator & electrode substrate materials), cable compounds (XLPE/PVC), food / Hot Melt Extrusion (HME) for drugs and sustained-release microspheres, GMP-grade solid dispersions, and chemicals.

Core applications

• Plastic modification
• PVC granulation
• Bio-plastic materials
• Rubber and plastic recycling granulation
• New energy: lithium-battery separator & electrode substrate materials
• Cable compounds (XLPE / PVC)
• Food / Hot Melt Extrusion (HME) drugs, sustained-release microspheres, GMP-grade solid dispersions
• Chemicals

Key components

• High-efficiency gearbox
• Torque limiter
• Modular barrel
• Side feeder
• Integrated heating and cooling systems
• Pressure and temperature sensors
• Operator HMI

Advantages & Key Features
1. Maxxtorque
Higher output and improved operating safety achieved by a high-power drive solution and a gearbox engineered to transmit ultra-high torque while resisting strong reverse axial pressure. The transmission gearbox employs a dual power distribution structure; designed/engineered for high loads.

The Gearbox Advantages:

• Thick-walled housing
• Highest degree of efficiency
• Noise-optimized via specially finished gears
• Continuous lubrication to avoid churning losses
• Optimized service life through use of high-performance oils
• For certain extruder sizes: torque measurement capability on drive shafts

2. Maxxshaft
DIN 5480 involute splines are adopted on shafts.

Advantages:

• Capable of withstanding high torque
• Higher load capacity, longer service life and more stable operation
• Adaptable to high-output and high-load working conditions
• Easier maintenance

3. Maxxvolume
Increased throughput via increased screw/barrel volume. When outer/inner diameter ratio is 1.66, an optimal balance between volume and effective energy input is achieved. Using lower cut screw flights with larger external diameters can yield throughput improvements up to ~30% for volume-restricted processes (dry-blends, pigment preparations, fillers, additive concentrates).

4. Maxxcooling
Enhanced cooling capacity for a larger process window: doubled number of inlets/outlets for each barrel, sophisticated cooling valve control and integrated cooling pipe installation in the functional carrier system. High-quality coax valves are assembled space-efficiently in the frame.

Why choose coax valves?

• Zero-differential-pressure startup: pressure-balanced design enables reliable opening/closing at high or low pressure
• Low flow resistance and large flow rate due to straight-through flow channel
• Multi-medium compatibility (high-viscosity oil, particle-containing fluids, high-pressure gases)
• Long lifespan and high reliability; even stress on valve core and reduced seal wear for frequent startups/stops

5. Modular Screw System
The screw is the heart of the extruder. Screw material and screw combination can be customized per material and formulation. Typical element categories shown: convey & mixing elements, kneading elements, conveying elements intermeshing, conveying element non-self-wiping.

6. Modular Barrel System
Barrel can be customized with openings or inserts for feeding, degassing and venting to match the screw and process. Heating cartridges are used for rapid, efficient barrel heating, offering short heat-up times, quick melting/wetting, energy savings vs. heating bands, and standardized spare part administration.

7. Raw Material Solution
Material solutions for barrels and screws can be provided (including high-wear and corrosion-resistant alloys) to match processing requirements.

8. Surface-treatment
Mirror-surface quality and coating options (e.g., Balzers·MOLDENA PVD coating) for improved durability and performance.

Technical specifications

• Model: PROMIX-26
• Diameter: 25.7 mm
• Barrel Length: 1000 mm
• L/D: 40:1
• Motor Power: 37 kW
• Max. Screw Speed: 900 rpm
• N.m Per Shaft: 140 N.m
• Specific Torque: 15
• Dimensions (L*W*H): 2600 x 740 x 1680 mm
• Weight: 1500 kg
• Output range: 50 - 200 kg/h

Application examples

• PEEK processing
• Pharmaceutical extrusion
• Medical plastics
• Separator & cathode/anode materials (battery)
• PVC compounds
• Thermoplastic Elastomer (TPE/TPR)
• Bio-plastic compounds (starch / bamboo powder / straw filling)
• Thermosetting materials (PF/EP/PU/UPR/UF)
• PVC cable compounds
• Color masterbatch
• Food - plant-based meat (HMMA)
• XLPE cable compounds

Characteristics / specifications

• Model: PROMIX-26 (listed/spec in table as PROMIX-26S)
• Diameter: 25.7 mm
• Barrel Length: 1000 mm
• Motor: 37 kW, max 900 rpm
• Torque per shaft: 140 N.m
• Specific torque: 15
• Dimensions (L*W*H): 2600 x 740 x 1680 mm
• Weight: 1500 kg
• Output range: 50–200 kg/h