Produce casting trees from waxes

Business Sectors (Suites): Jewellery Manufacture, Silversmithing and Allied Trades
Developed by: Creative & Cultural Skills
Approved on: 14 Aug 2015


This standard covers the skills to produce casting trees used in moulding and wax castings using different materials. In producing these you will work to instructions, understand the processes to make waxes, build different casting trees for different projects and use the correct temperatures and techniques appropriate to the type of metal being used. 

During, and on completion of, the tree making process, you will be expected to check the quality of your work. You will need to report any defects, to seek guidance on defects, advice on the action to rectify them, and to ensure that the finished work meets the required specification.

Performance criteria

You must be able to:

  1. complete preparatory work prior to waxing and casting in line with workplace instructions
  2. research techniques and procedures for wax injecting in line with industry best practice
  3. check the casting process is compatible with the proposed tree in line with workplace instructions
  4. produce a range of varying sized and shaped casting trees in line with project needs
  5. perform activities using safe working practices to avoid damage to self, others, components and equipment in line with health and safety practice
  6. seek support and guidance when problems arise in line with workplace instructions
  7. check the work for defects in line with the needs of the project
  8. take action to rectify any defects detected in line with workplace instructions
  9. complete the work to the given specification in line with workplace instructions

Knowledge and Understanding

You need to know and understand:

  1. safety precautions to be observed when making casting trees
  2. materials to be used
  3. the range of casting styles and which casting trees match these
  4. how alloy types affect the production of casting trees
  5. quantities and style combinations
  6. the flow required from the casting trees
  7. how to clean, maintain and use casting tree assembly and processing equipment
  8. the importance of assembling accurate wax trees including calculations and formula required
  9. who to ask for support and when to do so
  10. how to check that the casting tree meets the needs of the specification
  11. best practice in casting trees within chosen jewellery industry
  12. the importance of following the given specification and timescales
  13. common defects and ways to rectify these​


Scope Performance

Scope Knowledge





Links To Other NOS

External Links

Version Number


Indicative Review Date

14 Aug 2018





Originating Organisation

Creative & Cultural Skills

Original URN


Relevant Occupations

Design Associate Professionals, Skilled Trades NEC

SOC Code



Jewellery; design; technique; production; manufacture; wax; casting; silverware; silversmith; burnout; cast; components