Start up extrusion line EX-2 on 110 mm PN16 pipe
You are a trainee extrusion operator working with the line operator.
What has happened
The 110 millimetre PN16 die and calibrator have been fitted to line EX-2 and the PE100 black pipe compound lot is in the silo. Job card JC-26-3315 for Riverbend Water Corporation is at First-off pending. Yesterday the line ran for twenty minutes before a wall thickness was recorded and a process deviation was logged. A burn from a purging on this line earlier in the week has put long gloves at every line. The supervisor wants the line started up to the procedure, the pipe brought to specification and measured at four points, the marking checked and the start-up scrap weighed before the job card moves to Running.
Deliverables
- Pre-start checklist with die, calibrator and lot confirmation
- Written heating, purging and threading sequence with safety points
- Dimension and marking records on the job card with adjustments
- Start-up scrap record and first-off approval
Documents to use
Systems to use
Production Job Cards
Tracks every production, trial and site service job from release through setup, first-off approval, running, inspection and packing.
Tool and Die Register
Holds every mould, extrusion die, calibrator and cable die with its version, condition, service history, cavity or size details and storage location.
Raw Materials and Compounds Stock
Keeps the stock record for resins, masterbatch, copper rod, rubber ingredients, compounds and chemicals with lot numbers, quantities and locations.
Quality Nonconformance Register
Records nonconforming product, process deviations, cable test failures and customer complaints with disposition and corrective action.
Units of competency
Current on training.gov.au for the Plastics, Rubber and Cablemaking as at 10 September 2026.
PMBPREP303ESet up equipment for continuous operationPMBPROD213EOperate polymer extrudersPMBPROD313EProduce extruded polymer productsPMBPROD306EPrepare and start equipment for productionQualifications
PMB20121Certificate II in Polymer ProcessingPMB30121Certificate III in Polymer ProcessingWhat to look for
Evidence guide
Look for the die soak and purge handled safely, hands kept clear during threading, dimensions measured at four points against stated tolerances and adjustments made only within the sheet limits and recorded. The job card must not move to Running before the first-off conforms. The marking check must cover every required element.