Categories / Precision structural parts
Precision structural parts
Structural parts are the load-bearing pieces of a robot: joint housings, arm links, bases, reducer housings. They set stiffness, weight and assembly accuracy.
The dominant process is CNC milling from a die-cast or forged blank, followed by anodising, bead blasting or nickel plating. Supply density is highest across Shenzhen and Dongguan.
Price differences come from blank type, number of setups, surface finishing and inspection requirements, not from the machine tool itself.
Basis: Industry-structure assessment (Tier C, our own judgement); contains no hard numbers.
Where the barrier sits
- Thin-wall distortion control: the thinner the wall, the more the fixturing decides the outcome
- Number of setups: every additional setup adds cumulative error and labour hours
- Surface-finish consistency: colour variation, coating thickness and masking lines drive most batch complaints
- Batch consistency: holding microns on one part is not the same as holding it across 500
Price and lead time
Price band pending. Any comparison must state: blank form (bar stock / forging / die casting), whether surface finishing is included, whether full CMM inspection is included, who absorbs material loss, and the order quantity band.
| Data sheet | Status | What the basis must cover |
|---|---|---|
| Cost breakdown | Pending | Material / machine time / finishing / inspection / tooling amortisation / tax |
| Lead-time distribution | Pending | Sample and batch reported separately, queueing included |
| Export destinations | Pending | Aggregated by customs code |
Who makes it
| Company | Listed / code | Field completeness |
|---|---|---|
| Everwin Precision Shenzhen · Shenzhen–Dongguan | SZSE ChiNext 300115 | 4 / 13 |
| Lingyi iTech Dongguan / Shenzhen · Shenzhen–Dongguan | SZSE 002600 · HKEX 01688 | 5 / 13 |
| Eontec Dongguan · Shenzhen–Dongguan | ChiNext 300328 | 4 / 13 |
Ranking follows field completeness and source tier, not payment. Open any company to see how far each of the thirteen fields has been verified.