MLCC Gravure Printer
Combined coater + gravure machine that prints internal electrodes onto green sheets at high speed and quality using gravure roll screens.
Ni paste is precisely printed onto formed green sheets with a gravure roll, then continuously dried in a 6-zone floating-type dryer. Auto splicers on the turret unwinder and rewinder enable non-stop operation.
Basic specifications
Specifications are for the standard model. Width, speed, heat source and configuration are customized to your line conditions.
| Web | PET film · thickness 32 µm · width max 400 mm |
|---|---|
| Printing method | Gravure printing |
| Print thickness | 0.2 – 1 µm (dry) |
| Paste | Ni paste · viscosity ≤ 1,000 cps |
| Machine speed | Max 120 m/min (normal 100 m/min) |
| Dryer length | Approx. 2.1 m × 6 zones (total ≈ 12.6 m) |
| Drying temperature | Max 150 ℃ |
| Heat source | Electric heater |
| Main drive | Servo motor |
| Power | Main 380 V × 60 Hz 3-phase · control AC 380 V 60/50 Hz · DC 24 V |
| Pneumatics | 5 – 6 kg/cm² |
Configuration & detailed specifications
Turret Unwinder
2-axis turret + auto splicer (arm swing type). ø78 silicone conductive rubber press roll. Max web ø450 mm · 50 kg per roll.
| Tension control | AC servo 4.4 kW · dancer type 10–100 N |
|---|---|
| Turret drive | Geared motor 0.75 kW |
Infeed Unit
Suction roll type · AC servo 1.8 kW · interlocked front/rear air dancers. Web defect inspection system can be installed.
Gravure Printing Unit
ø153 × 510 mm printing roll, half-immersed in the paste container with variable speed. Impression roll ø75 mm NBR 80–85 Hs. Doctor blade with manual position/angle adjustment and ±7 mm lateral oscillation.
Printing Pan
SUS304 with bottom valve. Manual vertical/lateral adjustment under the printing cylinder for easy cleaning and replacement.
Dryer (6 Zone Floating Type)
Total 12.6 m. Upper/lower air circulation. SUS304 + SS400 with 75 mm insulation. HEPA clean filter, gas explosion vent, differential pressure gauge and dampers for air pressure control.
| Zone 1–2 | Upper counter-flow + lower roll-mounted nozzles, 8 EA |
|---|---|
| Zone 3–4 | Upper air atomizing + lower roll nozzles, 16 EA · 10 m/s · 50 m³/min |
| Zone 5–6 | Upper/lower slit nozzles, 16 EA · 10 m/s · 50 m³/min |
| Heater | Electric · PID control |
| Blower | Turbo fan with inverter control · 3.7 kW |
EPC + Outfeed
Center-pivot EPC · ultrasonic sensor · automatic return to center on power-off. Outfeed suction roll with AC servo 1.8 kW, load cell tension 10–100 N.
Turret Rewinder
2-axis turret · print layer wound outside. Max web 400 mm · ø450 mm · 100 kg per roll. AC servo 4.4 kW with dancer-type tension control. Linear-type splicer + serrated air cutter.
Electrical & Controls
Main panel + operator touch screen. Real-time display of A/B core outer diameter, tension in 1 N increments, automatic alarm logging, and automatic stop at a preset minimum diameter.
