The complete jewellery manufacturing process, stage by stage
9 min read · Powertech Industries
Modern jewellery manufacturing is a precise, multi-stage process. Here is how each machine contributes — from digital design to the finished cast tree.
Stage 1 — Design and pattern (CAD CAM & 3D printing)
It starts with a digital model. CAD CAM design and resin 3D printing produce an exact master pattern, removing the variation of hand carving and enabling thin, intricate designs.
Stage 2 — Mould making (die press)
A digital die press vulcanizes rubber around a master to create a durable mould. Even curing here means accurate, long-life moulds that hold fine detail.
Stage 3 — Wax injection
Automatic or digital wax injectors fill the rubber moulds with wax to create patterns, which are assembled onto a wax tree for casting.
Stage 4 — Investment and burnout
The tree is invested in plaster inside a flask, then a burnout furnace melts out the wax and cures the investment through controlled ramp stages, leaving a clean cavity.
Stage 5 — Melting and casting
An induction furnace melts the metal, and a vacuum casting machine pours it into the hot flask under vacuum for a dense, defect-free casting.
- Design → 3D print → rubber mould
- Wax injection → tree assembly
- Investment → burnout
- Melt → vacuum cast → finish
One line, one supplier
Because each stage feeds the next, machines that are engineered to work together produce tighter tolerances and fewer problems. Powertech manufactures every machine in this workflow.