The curtain coating machine is an automated, precision-metered adhesive application system. It utilizes a sealed adhesive supply, precise metering, and continuous curtain or reciprocating application to evenly coat the surfaces of boards or workpieces with single- or dual-component adhesives. Replacing manual brushing, it offers adhesive savings, high efficiency, and uniform coating thickness; the equipment is available in two main configurations: standalone units and fully automated production lines featuring gantry or robotic arm systems. II. Mainstream Classifications

1. By Automation Level

1. Semi-automatic curtain coater: Compact standalone unit; manual loading/unloading; suitable for small batches and small panels; low budget.

2. Fully automatic gantry-style curtain coater: Servo-driven gantry with reciprocating motion; paired with roller conveyor lines; features automatic panel dimension recognition, automatic coating, and one-touch cleaning; suitable for mass production lines of honeycomb panels and cleanroom panels.

3. Swing-arm long-span curtain coater: Features an extra-long cantilever track; suitable for cold storage panels, RV wall panels, and large integrated insulation panels (widths exceeding 3 meters).

2. By Adhesive Type

• Two-component (A/B) curtain coater (market mainstream): For polyurethane (PU), epoxy resin, and structural adhesives; features automatic proportioning and dynamic mixing (mixing accuracy ±0.5%); used for panel lamination and bonding.

• Single-component curtain coater: For water-based adhesives and single-component PU; simple structure; commonly used for thin-film coating on furniture and "crystal porcelain" art panels.

• Explosion-proof curtain coater: Designed for low-flashpoint adhesives and new energy panels; features explosion-proof pump assemblies and sealed adhesive circuits.

3. By Application Industry

1. Construction Panels (Highest demand)

Aluminum honeycomb panels, cleanroom panels, rock wool insulation boards, magnesium oxide (MGO) boards, cold storage vehicle panels, fire-rated doors, prefabricated partition panels.

2. Home Furnishing Industry

All-aluminum furniture, soundproofing panels, cabinet panels, "crystal porcelain" art panel coating, composite wood door manufacturing.

3. Others

Fiberglass (FRP), new energy battery busbars, premium gift box packaging, automotive interior panels.

III. Core Standard Features (Determining Equipment Stability)

1. Adhesive Supply & Metering System (Core Component)

High-precision gear pumps or plunger pumps; includes constant-temperature heating, anti-settling agitation, and low-level alarms; two-component models feature automatic shutdown protection for ratio deviations to prevent panel waste.

2. Curtain Coating Mechanism

Gantry servo or long swing-arm system; adjustable height for controlling coating thickness; optional multi-head configuration; ensures a continuous, gap-free adhesive curtain without missed spots.

3. Control System

PLC with touchscreen interface; stores multiple sets of panel parameters and automatically adjusts speed based on panel dimensions; one-touch automatic adhesive line purging to minimize maintenance due to clogging.

Conveying System

Powered roller conveyors and belt conveyors; compatible with hot press and lamination equipment to form a fully automated composite production line.