Roll-to-Roll Continuous Doctor Blade Coating Line
Our doctor blade coating line enables continuous or batch coating of slurries, pastes, inks, and sol-gel materials onto glass, metal foil, polymer film, or paper. It features high thickness uniformity (< ±2%), low material waste, and stable gap control. Ideal for R&D labs, pilot lines, and full-scale production.
Technical Parameters
| Parameter |
Standard Range |
Customizable Option |
| Coating method |
Doctor blade (lab) / Slot die (production) |
Comma roll / Microgravure customizable |
| Coating width |
150 mm (lab) / 600 mm (production) |
50 - 1600 mm |
| Substrate type |
Glass, film, metal foil |
Rigid or flexible customizable |
| Wet coating thickness |
10 - 500 µm |
1 - 2000 µm |
| Thickness uniformity |
±2% |
±0.5% (servo gap control) |
| Line speed |
0.1 - 5 m/min (lab) |
0.05 - 50 m/min |
| Gap adjustment method |
Manual micrometer |
Motorized servo customizable |
| Drying temperature |
RT - 150°C |
RT - 300°C (multi-zone) |
| Substrate width (roll-to-roll) |
300 mm |
100 - 1500 mm customizable |
| Tension control range |
10 - 200 N |
5 - 500 N customizable |
| Power supply |
220V / 50Hz single phase |
380V three phase available |
Applications
- Lithium-ion battery electrode coating (anode & cathode)
- Perovskite and organic solar cell active layers
- Quantum dot light-emitting diode (QLED / OLED) films
- Ceramic green tape for MLCC capacitors
- Adhesive, sealant, and thermal interface materials
- Pharmaceutical transdermal patches
- Flexible printed electronics (Ag nanowires, graphene)
- Optical films (anti-reflective, hard coating)
Process parameters customizable for each material type.
Customization Options
- Coating head material: Stainless steel 316L / Tungsten carbide / Polymer
- Blade / die gap adjustment resolution down to 0.1 µm
- Shimming design for patterned or multi-layer coating
- Substrate vacuum chuck or magnetic clamping (for rigid substrates)
- Automated slurry circulation and degassing system
- Exhaust VOC treatment (carbon filter or wet scrubber)
- Cleanroom integration (ISO 5 - ISO 8) with customizable footprint
- Recipe-based PLC control with touch interface
- Edge bead removal (EBR) air knife or suction nozzle
Key Features
- Precision ground doctor blade with wear-resistant edge
- Real-time gap feedback via laser displacement sensor
- Touchscreen HMI with recipe storage for 100+ coating parameters
- Modular design for future upgrades (add dryer, unwind/rewind)
- Anti-drip and overshoot protection for start/stop
- Low material dead volume (< 5 ml for small-scale head)
- Customizable software triggers for vision or thickness measurement
- Optional: thickness gauge integration (confocal / eddy current)
Support and Services
- Free process consultation prior to purchase (upload your material MSDS)
- On-site installation and commissioning by certified engineers
- 18 months warranty on coating head and gap actuator
- Remote support via TeamViewer or equivalent
- Annual calibration service - customizable service plan (1/3/5 years)
- Spare parts inventory for blades, gaskets, and bearings
- Operator training manual & video library included
Packing and Shipping
Packing: Anti-static film + foam padding + plywood export case
Coating head shipped separately in protective oil coating
Dimensions (small lab line): 130×60×60 cm (approx. 180 kg)
Dimensions (production R2R line): depends on length - customizable packing layout
Shipping: FCL preferred, LCL available, air freight for urgent lab units
All packages labeled with lifting points and "Fragile - Precision Gap"
Frequently Asked Questions
Q1: Can this line handle both rigid glass and flexible PET film?
Yes. We offer customizable substrate fixtures: vacuum chuck for glass, pin-lift for rigid panels, or roller nip for film.
Q2: What is the minimum coating quantity for a lab-scale line?
With a small slot die, you can coat with just 5-10 ml of slurry. Die reservoir volume is customizable down to 2 ml.
Q3: Is the drying oven configurable for inert gas (N₂) environment?
Absolutely. Oven gas purging and oxygen monitoring are customizable options for moisture/air-sensitive materials.
