Extruders - Brampton Engineering Inc. - #1

Brampton's standard profile extruders are air-cooled, unitized machines. All components including the power panel, temperature control and drive transformers are mounted and pre-wired on one base for fast, easy installation. The air-cooled design with cast aluminum heaters provides accurate temperature control for quality products. Liquid-cooled extruders are also available.

Air and liquid-cooled film extruders are designed for a wide range of applications, from simple monolayer lines to sophisticated multilayer coextrusion lines incorporating computer-controlled gravimetric blender systems. These hopper systems provide optimum control of gauge thickness and layer-to-layer ratios.

Brampton Engineering's air and liquid-cooled extruders are the most economical, energy-efficient, and easy-to-service machines on the market today.

• heat/cool system with deep-finned cast aluminum heaters enclosed by insulated shrouds

• fins provide optimum heat transfer through high surface area

• aluminum heaters extend the full length of each barrel zone ensuring total zone coverage, minimizing heat/cool stress and increasing heating/cooling efficiency

• precision-machined internal diameter

• clam-shell heater covers provide easy maintenance for minimum downtime

• dual-impeller blower for each zone further maximizes air flow.

• stainless steel piping on the hot, closed-loop side

• stainless steel manifolds run the length of the barrel and are connected to the individual solenoid-operated flow-control valves for each heat/cool zone

• valves connected to the heaters use a flexible hose system of high temperature resistant, non-corrosive PTFE (Teflon) tubing.

By incorporating these features, Brampton Engineering's liquid-cooled extruders minimize maintenance and increase life by reducing corrosion and decreasing stress on fittings.

Brampton Engineering specifically selects each screw to match a particular process to provide high extrudate quality at optimum throughput rates. BE screws feature

• custom-designed melt channel or compression screws for excellent melt temperature control and high output rates

• square cut screw shank with keyway gives solid contact without wobble.

For more information see Brampton Engineering Melt Channel Screw product sheet.

• barrel temperature zone regulated by a microprocessor-based instrument for accurate temperature control

• full PID programs and alarms for common heater problems

• solid state contactors to reduce both current cycle times and maintenance

• customized control panel to fit operating position and equipment layout.

Available supervisory control packages include remotely programmable and fully integrated line control systems.

• rugged design gearboxes provide horsepower and torque ratings that surpass the usual standards

• hardened and precision-ground gears feature a helical design to ensure years of non-stop production

• integrally-mounted thrust bearing assures precise alignment to ensure that the bearing achieves a long working life

• oil-circulation pump standard on some models.

Optional: oil cooling, filter, circulation system.

Unique unitized construction option (available with ITALYCS) eliminates field control wiring

• each pre-wired extruder is attached as a node on the network

• each pre-wired unit is checked at Brampton prior to shipping

• installation time and costs are reduced significantly.

• AC flux vector drives provide optimum energy efficiency and precise control

• bi-metallic barrel with integral feed throat provides excellent wear protection

• floating barrel support allows thermal expansion without barrel distortion

• accessible powder seal at rear of screw prevents material leakage from feed area for cleaner operation and easier service

• extra large hopper with sight-glass, slide-gate shut-off, and dump chute

• water-cooled feed throat prevents premature melting and bridging.

Brampton Engineering manufactures a wide range of extruders covering the majority of plastics processing applications including blown film, pipe, tubing, profile and wire coating products. Standard model smooth-bore feed throat extruders are available in screw diameters from 20 to 150mm (3/4 to 6in.) and L/D ratios of 24:1 and 30:1.

One of Brampton Engineering's major strengths is its ability to customize a system to fit the user's needs-whether the requirement is for low screw speed and high torque or high screw speed and high melt throughput. BE recognizes that each application places a different demand on the extruder.

Quality: Brampton Engineering world headquarters continues to meet the ISO 9001 standard which covers design, manufacture, assembly, installation and service of our products.