Assembly & Post-processing
Post-Processing & Assembly
From raw molded part to market-ready product
From raw molded part to market-ready product
What is Post-Processing and why it’s critical
Post-processing means every operation that improves appearance, function, or durability after the part leaves the injection mold.
For most plastic products, post-processing is what turns a “component” into a “finished good” that can be sold at premium price.
We perform 13 of the most demanded post-processing operations every single day:
| Process | Why buyers need it | Our real capability (running daily) |
|---|---|---|
| Electroplating (Chrome) | Luxury automotive, cosmetics, sanitary parts | Full ABS → Cu → Ni → Cr line, bright chrome, satin chrome, trivalent Cr, thickness 15–40 μm |
| Vacuum Metallizing (PVD) | Mirror-like chrome without heavy metals (eco-friendly) | UV base-coat + aluminum sputtering + UV top-coat, used on cosmetic caps and reflectors |
| Painting & Soft-Touch | Piano black, matte, rubberized feel, anti-scratch | 2 automatic spray lines + IR curing oven, 2K paint capable |
| Pad Printing | Logos & icons on curved or textured surfaces | 6 closed-cup machines, up to 4 colors in one pass, 3000 pcs/h |
| Hot Stamping | Metallic gold / silver foil, luxury look | 4 roll-on machines, perfect registration on round parts |
| Silk-Screen Printing | Large flat graphics, durable | 3 automatic silk-screen lines + UV curing |
| Laser Etching / Marking | Permanent serial numbers, no ink peeling | 2 fiber lasers (black / white / color-change marking) |
| UV Hard Coating | Scratch-resistant lenses & transparent parts | Automatic dip or spray UV coating line |
| EMI / RFI Shielding | Conductive coating for electronic housings | Vacuum aluminum + lacquer coating |
| Texture & Grain Etching | Leather, wood, geometric patterns on mold surface | Chemical & laser texturing in-house |
All processes are RoHS / REACH compliant and include full thickness & adhesion testing.
Assembly – The final step before shipping
After the part looks perfect, we assemble it into the finished product you actually sell.
| Assembly Process | Why it matters to you | Our daily capability |
|---|---|---|
| Ultrasonic Welding | Strong, clean, hermetic seal | 12 welders, medical-grade traceability |
| Heat Staking & Inserting | Replaces metal nuts, zero loose parts | 18-station automated lines with vision verification |
| Mechanical Assembly | Screws, clips, springs, metal brackets | 10 dedicated cells with torque-controlled screwdrivers |
| Snap-Fit & Press Assembly | Fast, no extra hardware | Fully automatic pressing stations |
| Adhesive Bonding | Structural or flexible bonding | Robotic dispensing + UV/anaerobic curing |
| Leak & Functional Testing | Medical & automotive parts must work first time | Automatic helium, pressure decay, flow testers with data logging |
| Cleanroom Assembly (ISO 8) | Medical devices, baby products, some electronics | 10,000 sq ft dedicated cleanroom with welding, printing, testing |
| Final Packaging & Labeling | Retail-ready or ocean-freight safe | Blister sealing, skin-pack, carton erecting, palletizing, custom export packaging |
How to include post-processing & assembly in your project
Simply mention your requirements when you send the first 3D file or sample.
We will quote everything together — molding + post-processing + assembly — from day one.
Send Sample or 3D File Now → Get Quote in 24h