Paper Impregnation & Coating Lines
35m/min High Speed Melamine Impregnation Line
As the leading supplier in China, NTRY brand 1500B 3+5 melamine paper impregnation line is designed for high-speed, high-efficiency production. This advanced line features a custom-designed hot air distribution system that ensures thorough and consistent heating for drying wet melamine formaldehyde resin. The system includes a synchronization unit and an additional half-bridge conveyor, enhancing operational stability and precision.

Core process capabilities
Production applications
Equipment and process details
Final parameters and system boundaries are confirmed against materials, process targets, capacity and site conditions.
Key Features
- Tailor-Made Hot Air Distribution System: Provides uniform heat distribution, critical for the efficient drying of melamine-impregnated paper.
- High Efficiency: Despite high-speed operation, the system maintains low energy consumption and minimal waste, ensuring cost-effective production.
- Synchronization Unit: Ensures precise coordination of the production process, minimizing defects and enhancing overall quality.
- Extra Half-Bridge Conveyor: Offers additional support and stability during the transfer process, reducing the risk of paper jams or misalignments.
Highlights in the 3+5 (8-Oven) Melamine Impregnation Line Design
Thick plate frame for steady impregnation unit, with high glossy chromed metering rollers, long time and easier resin add-on device.
Main Features
Printed paper has a thorough impregnation in resin bath; resin add-on is gauged by the gap between two metering rollers; the roller gap is automatically adjusted by screw motor device.
Scope
- Built-in thick steel plate structure, sturdy and stable, keeps metering roller gap tolerance after adjustment.
- S-roller tractor unit with three chrome-galvanized rollers driven by VVVF control to match unwinder speed and reduce paper breakage.
- Back-coating device with three chrome-galvanized rollers; one for back coating and two for angular adjustment during paper guidance.
- Electrical sky-roller device with one breathing roller and one banana roller; provides additional paper path length to improve glue impregnation.
- Doctor roller device with hard-chrome glossy rollers and adjustable gap control for precision resin add-on.
- Germany Baumer approach sensor feedback control for automatic digital doctor-roller gap adjustment.
- Glue scrapers at both ends of metering rollers to trim excess glue residue.
- Smoothing roller device with VVVF control to stabilize surface resin quantity.
- Resin bath device with full stainless inter-layered structure, movable lift, and integrated temperature control for stable operation and easy maintenance.
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1830 mm two-step high-speed melamine paper impregnation line with natural-gas heating, configured for 6 ft paper width and a 4+6 oven layout. Designed for 40-160 g/m2 decorative paper, with melamine and urea-formaldehyde resins, mechanical speed up to 60 m/min, working speed 40-45 m/min, working width 2100 mm, maximum paper width 2000 mm, resin pickup 50-150%, resin add-on accuracy within ±1%, volatility accuracy ±0.1% at 6.5%-8%, 10 heating zones, paper cutting accuracy ±1 mm, and metering roller movement accuracy of 0.002 m.

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