24-Station Rotary Spin Coating Line for Pulp Molded Tableware
This fully automated, inline 24-Station Spin Coating Production Line is engineered for high-volume, precision application of barrier coatings (PE, PLA, PFAS-free aqueous dispersions, photoresist, polymers) onto substrates including pulp-molded tableware, semiconductor wafers, glass panels, and flexible films. Using precision rotary indexing with individual spin coating stations, the system ensures consistent, uniform, and pinhole-free film deposition while integrating dosing, spinning, and curing into one continuous process.
Technical Specifications
| Parameter | Standard Value | Customizable Range |
|---|
| Number of work stations | 24 positions (rotary indexing) | 12 / 16 / 24 / 32 stations |
| Production capacity | 15 - 35 cycles/min (360 - 840 pcs/hr) | Customizable based on drying time & part size |
| Max substrate size | 200 mm diameter or 300×300 mm panel | Up to 450 mm / customizable chuck size |
| Spin speed range | 100 - 8,000 RPM | Customizable up to 12,000 RPM |
| Speed accuracy | ±1 RPM (servo-controlled) | ±0.5 RPM closed-loop customizable |
| Coating weight / thickness | 5 - 25 gsm (dry) / 5 - 200 µm (wet) | Customizable via pump & spin profile |
| Coating uniformity | >95% (across 24 stations) | Upgradable to ±1% / customizable |
| Coating application method | Precision metering pump + high-speed spin coating | Customizable (needle, spray, inkjet) |
| Drying method | Multi-stage tunnel (IR + forced hot air) | Customizable length, zones, UV option |
| Main construction material | 304 Stainless Steel (frame), food-grade fluid paths | 316L / PTFE coatings customizable |
| Control system | Mitsubishi PLC + 7″ HMI touchscreen | Delta / customizable brand |
| Power supply | 380V / 50Hz (3-phase), ~80-120kW peak | 220V - 480V, 50/60Hz customizable |
| Compressed air | 0.6 - 0.8 MPa, ~150 NL/min | Customizable flow rate |
| Material transfer efficiency | >90% | Customizable with EBR & recovery bowl |
| Line footprint (L×W×H) | Approx. 12m × 3.5m × 2.2m | Fully customizable to fit existing plant |
Applications
- Pulp-molded tableware - plates, bowls, trays, clamshell containers (PE, PLA, bio-based barrier coatings)
- Semiconductor & MEMS - photoresist coating on wafers (up to 300mm)
- OLED / perovskite solar cells - thin-film deposition for displays and photovoltaic panels
- Food packaging - water/oil barrier coating for disposable eco-friendly packaging
- Medical device coating - bio-compatible films on implants or components
- Customizable for: flexible films, glass panels, ceramic tapes, lithium battery electrodes
Key Features
- Individual station control - each station can run independent spin programs (speed, time, acceleration)
- High efficiency & yield - >90% material transfer efficiency vs. spraying
- Precision & uniformity - servo-controlled dosing and spinning guarantee consistent coating weight
- Quick changeover - modular tooling design allows fast product changeovers
- Smart control & data logging - HMI with recipe library (up to 999 recipes), real-time monitoring
- Robust & hygienic design - 304 stainless steel construction, easy to clean
- Material saving logic - smart recovery system reduces chemical consumption by 25-40%
- Safety interlock - emergency stop, cover interlocks, vacuum detection for substrate hold
Customization Options
- Station count: 8 / 12 / 16 / 24 / 32 stations - customizable
- Part nests & tooling: custom-machined fixtures for specific product shapes
- Dosing system: pump type, capacity, and nozzle design for different coating viscosities - customizable
- Drying tunnel: length, heating zones, IR wavelength, or UV curing - customizable
- Spin profiles: speed, acceleration, time per station - independently customizable per recipe
- Layout configuration: circular, linear, or L-shaped - customizable for floor space
- Integration: interface with existing molding presses, conveyors, or MES systems - customizable
- Material recovery: EBR recycling, low dead-volume lines, solvent recovery bowls - customizable for minimum waste
- Environmental control: cleanroom compatibility (Class 10 - Class 100,000), inert gas purge - customizable
Support and Services
- 12 - 24 months warranty (extendable based on model)
- Project consulting - feasibility analysis and process solution design
- Installation & commissioning - supervised on-site installation and calibration
- Remote troubleshooting - via WhatsApp, Teams, or TeamViewer
- Spare parts supply - stocked for 7+ years
- Operator training - on-site training for your production team
- Customization engineering support - CAD drawings + PLC code adjustment included
Packing and Shipping
Packing includes anti-static vacuum bag + foam padding + reinforced plywood export crate with VCI anti-rust paper and moisture-proof barrier on sensitive components. Shipping methods available: FOB (Shanghai / Shenzhen / Qingdao) or CIF by sea, air, or rail. Lead time: 30 - 60 days based on customization level. Documents included: User manual, calibration certificate, CE declaration, electrical schematics.
Frequently Asked Questions
Q: Can the 24 stations run different spin programs simultaneously?
A: Yes. In the independent motor version, each station supports a customizable independent recipe (speed, time, acceleration).
Q: What substrate sizes can be handled?
A: Standard supports up to 200mm wafers or 300×300mm panels. We can customize chucks for substrates from 5×5mm chips up to 450mm panels.
Q: Can this line handle both water-based and solvent-based coatings?
A: Yes. We can customize the fluid path materials (PTFE, 316L) and add explosion-proof electricals for solvent compatibility.
Q: Is the drying tunnel length adjustable?
A: Yes. The drying tunnel can be customized (lengthened/shortened, different heating zones) based on your coating curing profile.
Q: How do I change between different product shapes?
A: The machine uses modular tooling. Part nests are customizable and can be swapped in under 15 minutes for quick changeovers.
Q: Can the line integrate with my existing molding press?
A: Yes. We provide customizable infeed/outfeed interfaces, speed matching, and PLC communication protocols for seamless integration.
Q: What is the minimum order quantity for a customized line?
A: 1 unit for configuration changes (nests, nozzles, speed). 2+ units for full mechanical redesign and custom layout.
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