- The extruder is completely disassembled and steam cleaned
- All gearbox shafts are inspected for wear and concentricity. They are repaired or replaced as necessary
- All shaft bearings are replaced
- The main thrust bearing is inspected and replaced if necessary
- The main bull gear is inspected and turned 180 degrees.
- New lubrication filter and plumbing are installed on the gearbox
- The Gearbox is reassembled with new sealant and bearing shims to original axial tolerances
- A rebuilt or new feed throat section is installed
- A new barrel with customer specified bi-metallic liner is installed and aligned with feed section and gearbox
- Cast aluminum heaters are tested and replaced as necessary
- New blowers and blower motors are installed
- Head clamp, including shear pins, are inspected and repaired as necessary
- New over pressure rupture plug is installed
- New wiring, thermocouples and barrel guards are installed
- Supplied with new customer specified screw design and stainless steel hopper
- The machine is painted to customer specifications
Most extruder rebuilds are accompanied with other line components like rebuilt payoffs, preheaters, accumulators/dancers, capstans (dual wheel, belt wrap, caterpuller type) and single/dual reel take-ups. We carry extrusion equipment from Davis Standard, Nokia Maillefer, Nextrom, Royle, and more.
In all instances, new drive and temperature control panels are built in-house with customer specified drives which can be AC Vector or Digital DC. Panel logic can be either PLC (programmable logic control) controlled or PC based. Discreet temperature instruments or a touch screen front end can be installed per customer requirements. All electrical drawings are prepared in Autocad format and provided to the client.
Examples of our reconditioned extruders: