Rubber Screw Extruders and Preformers – Barwell SX Range

Cold Feed Rubber Screw Extruders and Preformers – ideal for the continuous extrusion/preforming of most basic rubber processing compounds.

Rubber Screw Extruders and Preformers – Barwell SX Range

Cold Feed Rubber Screw Extruders and Preformers – ideal for the continuous extrusion/preforming of most basic rubber processing compounds.

Barwell SX range of Rubber Screw Extruders and Preformers

The Barwell SX range of cold-feed rubber screw extruders and rubber preformers are designed for the precise and accurate process control of rubber and polymer compounds.

Our new high-efficiency screw extruders are built with innovative features, which focus on efficiency, more accurate process control, and high output levels. SX machines provide a more cost-effective method and a viable alternative to a Barwell Gear Pump when continuous performance is needed but without the complexities experienced when using various material types and hardnesses.

Provides 24/7 rubber production
A cost-effective alternative to a Gear Pump if the material is not complex to process
A quick and automated method of rubber production
Operator-friendly, requiring minimal user training, increasing production capability
Robust, safe, reliable, and easy to maintain

Features

TCU Heating controls
Schneider low voltage electrical appliance
ABB Speed control frequency converter
Screw driven belt driven motor and reducer
Temperature control precision +/- 1°C
Screw hardness rated to HRC65-68
Barrel hardness rated to HRC65-70
Screw material (38GrMoAcA)
Nitride Steel (HV900)
Siemens AC motor screw for speeds ranging from 1-70 rpm
Feeding system uses powered rollers to the screw and includes a broken feed alarm
Pressure sensor and pressure protection, including temperature sensor
Speed control frequency converter for the main screw drive with temperature control precision
All powered devices linked to Emergency Stops
Variable Feed roller with a servo motor to ensure consistent feed for the screw

Options

Barrier flight mixing screw or Transfer Screw
Vacuum screw option – used to remove moisture and gases from extruded material
Industry 4.0 – 9” Colour HMI with 5000 product database Including:
- WiFi remote VNC and iPhone app control.
- Data capture module to collect working data
- Allow remote access to plc and machine to email alarm messages
- OPC-UA connectivity for SPC data collection
Screw servo motor for precise screw speed operation
Oil-cooled TCUs for certain materials exceeding 80 shore hardness

Sizes available and outputs

50mm – 20D – 80 kg /h
65mm – 20D – 128 kg/h
75mm – 12D – 135 kg/h
75mm – 16D – 135 kg/h
75mm – 20D – 135 kg/h
90mm – 12D – 320 kg/h
90mm – 16D – 320 kg/h
90mm – 20D – 320 kg/h
120mm – 12D – 800 kg/h
120mm – 16D – 800 kg/h
120mm – 20D – 800 kg/h
150mm – 8D – 1000 Kg/h
150mm – 16D – 1000 kg/h
150mm – 20D – 1000 kg/h

Benefits

Highly accurate and consistent production – consistent mixing of material and temperature control throughout the process (temperature control precision)
24/7 production capability
Ease of operation and maintenance
Minimal waste and low production costs
Reduced downtime
Processing flexibility
Designed for safety