Unit of competency Outline

Date retreived
22/07/2026 6:49 AM AWST

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Produce products using twin screw extruders

Produce products using twin screw extruders

Unit of competency
National Code
PMBPROD334
State Code
BAI52
TGA Status
Deleted
DTWD Status
Deleted
Current Release Number
1.00
Current Release Date
22/06/2016
View on TGA
State Implementation and Classification
Approved Date
05/08/2016
Field of Education
030305 - Materials Engineering
Original Release Date
05/08/2016
Nominal Hours
70
Description
This unit of competency covers the skills and knowledge required to operate and adjust twin screw extrusion equipment to produce product. It applies to products such as pipe, sheet, profile, film, cable and rod that are extruded from dry blend PVC powder/resin or similar materials.This unit of competency applies to experienced operators who are required to start up and shut down twin screw extrusion equipment, monitor equipment operation, establish a stable process, make adjustments to remedy faults and non-conformity and solve problems within area of responsibility.This unit of competency applies to an experienced operator demonstrating theoretical and technical knowledge and well developed skills in situations that require some discretion and judgement. The advanced operator may work alone or as a member of a team or group and will work in liaison with other shift team members, team leader and supervisor, as appropriate.No licensing, legislative or certification requirements apply to this unit at the time of publication.
Notes
Elements and Performance Criteria
1 Plan own work requirements
  • 1.1 Identify the most appropriate equipment to be used for production process, upstream and downstream operations from production plan or request
  • 1.2 Identify and check materials required, including additives and regrind and their amounts or percentages
  • 1.3 Implement measures to control identified hazards in line with procedures and duty of care
  • 1.4 Identify requirements for materials, quality, production and equipment checks
2 Start up twin screw extrusion process to procedures
  • 2.1 Identify process settings required for product
  • 2.2 Set process to required settings
  • 2.3 Check materials are correct
  • 2.4 Take appropriate action for non-conforming materials
  • 2.5 Set up date, batch and materials markings as required
  • 2.6 Complete pre-start checks
  • 2.7 Start up ancillary equipment as required
  • 2.8 Start up extrusion process
  • 2.9 Synchronise/balance system components as required
3 Operate and make adjustments to the twin screw extrusion process to procedures
  • 3.1 Operate extrusion process, noting key variables
  • 3.2 Monitor controls/displays/terminals for production and process data
  • 3.3 Take samples as required and identify product out of specification
  • 3.4 Monitor product/process quality
  • 3.5 Make adjustments to remedy faults and nonconformity as required
  • 3.6 Establish a stable compounding and extrusion process
  • 3.7 Adjust process to minimise scrap and trim
  • 3.8 Clean, adjust and lubricate equipment as required
4 Shut down twin screw extruder to procedures
  • 4.1 Determine type of shutdown
  • 4.2 Select appropriate purging method
  • 4.3 Purge efficiently and adequately as required
  • 4.4 Leave machine in appropriate condition and with appropriate locks, tags or notices
  • 4.5 Complete relevant documentation
  • 4.6 Ensure area is clean and clear after the shutdown in readiness for the next start-up
5 Anticipate and solve problems
  • 5.1 Recognise a problem or a potential problem
  • 5.2 Determine problems needing priority action
  • 5.3 Refer problems outside area of responsibility to appropriate person, with possible causes
  • 5.4 Seek information and assistance as required to solve problems
  • 5.5 Solve problems within area of responsibility
  • 5.6 Follow through items initiated until final resolution has occurred
No information
No information
Replaces
State Code National Code Title Type
W7646 PMBPROD334A Produce products using twin screw extruders Unit of competency
State Code National Code Title Type
BCT3 PMB30116 Certificate III in Polymer Processing Qualification
BCU0 PMB40116 Certificate IV in Polymer Technology Qualification