Robot OEMs need housings and structural plastics that survive vibration, thermal cycling, and tight assembly — not commodity brackets. Robotics plastic parts contract manufacturing pairs lightweight geometry with repeatable dimensions across ramp volumes.
What robotics programs require from a molder
- Strength-to-weight — ribbed housings, composite-filled grades where justified
- Repeatable bores and faces — arm covers, joint shells, sensor mounts
- Cosmetic durability — Class A surfaces that resist handling and UV
- Integration readiness — insert pockets, cable channels, label zones
- Documentation — FAI on CTQs that affect alignment and safety
See Deuchi’s application focus: robotics & intelligent equipment.
Common failure modes in robotics plastic sourcing
| Symptom | Often traces to |
|---|---|
| Cover fits at T1, drifts at ramp | Unstable process or wrong shrink model |
| Cracking at screw bosses | Thick sections / poor rib ratio |
| Missed weight target | Solid sections not cored in DFM |
| Delayed launch | Quote without side-action planning |
Contract manufacturing scope for robotics OEMs
Beyond molding: ultrasonic weld, insert installation, sub-assembly, and kitting reduce line-side labor. Define ship state in RFQ — component only vs module ready for final robot assembly.
When to involve your molder
At concept or prototype — before locking aluminum or sheet metal assumptions. A DFM review can consolidate parts and cut fastener count while improving stiffness.
FAQ
Can injection molding replace machined aluminum covers?
Often yes for non-primary-structure covers — with filled engineering resins and proper ribbing. Primary load paths may still need metal.
What volumes justify production steel?
Typically thousands per year depending on part size; bridge tooling may serve pilot builds — see low-volume contract molding.
Next step: Share arm geometry and CTQs for a robotics molding quote.