286 Demonstrate Knowledge of Advanced Extrusion Tooling and Change Extruder Screws

Explanatory notes

1Definitions

Enterprise– an organisation where training and/or assessment is taking place, and/or where the trainee is employed.

Enterprise procedures– actions which comply with the policies, systems, and directives in a particular enterprise. Enterprise procedure must comply with the requirements of the Health and Safety in Employment Act 1992, and subsequent amendments.

Advanced extrusion tooling refers to – mechanically and thermally auto-centred pipe dies; multi-strand dies; co-extrusion dies for sheet, pipe, profile, and cablemaking.

2For assessment, the performance of all outcomes must take place in accordance with enterprise procedures.

Outcomes and evidence requirements

Outcome 1

Demonstrate knowledge of the construction of advanced extrusion tooling.

Evidence requirements

1.1The construction and applications of advanced extrusion tooling are described using engineering drawings.

Rangeadvanced extrusion tooling includes – mechanically and thermally auto-centred pipe dies; multi-strand dies; co-extrusion dies for sheet, pipe, profile, and cablemaking.

Outcome 2

Describe the reasons for the removal and refitting of extruder screws, and remove and refit an extruder screw or screws.

Evidence requirements

2.1The reasons for removing, measuring, and refitting extruder screw or screws are described.

2.2Screw or screws are removed using machine manufacturer’s specifications.

2.3Screw or screws and barrel are cleaned and inspected for wear and damage.

2.4Screw or screws are identified and fitted using machine manufacturer’s specifications.

This unit standard is expiring. Assessment against the standard must take place by the last date for assessment set out below.

Status information and last date for assessment for superseded versions

This CMR can be accessed at

Please note

Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.

Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.

Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.

Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.