Positive‑Pressure Wood Door Fully Automatic CNC Spray Painting Machine

• Maximum Working Length:2400 mm
• Maximum Working Width:1100 mm
• Maximum Working Thickness: 150mm
• Spray Gun Calibre:0.8 / 1.0 / 1.3 mm (selectable)
• Required Air Pressure: 0.6 MPa
• Applicable Paint Types: PE, PC, PU, UC, NC, UV, water‑based paints, and more
• Application : The Positive‑Pressure Wood Door Spray Painting Machine is specifically designed for coating complex workpieces such asspraying primer and topcoat on engineering doors, home decoration doors, double doors, steel-wood doors, fireproof doors and panel furniture.

Building on our proven door‑finishing platform, this advanced model integrates a positive‑pressure air purification system, a built‑in water‑curtain and floor cleaning setup, and an automatic protective door that seals the spraying chamber for enhanced environmental control. The rotary dual‑station worktable with integrated positioning fixtures ensures smooth loading/unloading and continuous production flow. With a larger footprint to accommodate these features, this machine delivers superior finish quality, reduced maintenance effort, and a safer, cleaner working environment – ideal for high‑end door manufacturers who demand both productivity and sustainability.

1. Integrated Positive‑Pressure Air Purification System

An upgraded air filtration unit supplies clean, pressurised air into the spraying chamber, effectively reducing airborne contaminants and ensuring a dust‑free coating environment. This positive‑pressure design also minimises the ingress of external particles, resulting in a noticeably smoother, blemish‑free finish – especially critical for high‑gloss and clear‑coat applications.

2. Self‑Cleaning Water‑Curtain & Floor Washing System

The machine is equipped with a water‑curtain scrubber that continuously captures overspray and paint mist, while a floor cleaning device automatically flushes residues from the working area. This built‑in cleaning system drastically reduces manual maintenance, shortens colour‑changeover time, and keeps the production floor clean and safe – a major advantage for facilities running multiple colours or frequent batch changes.

3. Automatic Protective Sealing Door

A vertically moving protective door seals the spraying zone during operation, creating an enclosed, negative‑pressure (or balanced) environment that contains paint mist and reduces solvent emissions. This not only improves operator safety but also enhances coating transfer efficiency and consistency by stabilising airflow within the chamber.

4. Rotary Dual‑Station Worktable with Work‑Holding Fixtures

The machine features an A/B dual‑station rotary table, each equipped with dedicated positioning fixtures for doors of various sizes. While one door is being sprayed, the other station can be loaded or unloaded – eliminating idle time and enabling seamless, uninterrupted production. The fixtures ensure accurate placement, so even heavy or oversized doors are held securely, maintaining precise spray alignment.

5. High‑Throughput & Low‑Labour Operation

With just two general operators for loading/unloading and system monitoring, the machine achieves a production output comparable to the standard model (up to 160–240 doors per 8‑hour shift), while the enhanced automation and cleaning systems further reduce non‑productive time.

6. Precision Servo‑Driven Gun Control

Powered by a 4 kW servo motor, the two spray guns move smoothly at speeds adjustable from 0 to 1500 mm/s. The CNC‑controlled paths ensure uniform film thickness, sharp edge coverage, and consistent corner penetration – delivering premium results door after door.

7. Broad Paint Compatibility

Supports all common wood coatings – PE, PC, PU, UC, NC, UV, and water‑based paints – providing flexibility for different finish requirements, from durable industrial topcoats to eco‑friendly water‑borne systems.

• Enhanced environmental control – Positive‑pressure air purification and a sealing door reduce dust contamination and overspray exposure, improving finish quality and operator safety.

• Minimised maintenance downtime – The self‑cleaning water‑curtain and floor washing system automate the most tedious cleaning tasks, cutting changeover time by up to 40%.

• Continuous production flow – The A/B dual‑station rotary table with fixtures eliminates loading/unloading delays, maximising throughput.

• Consistent, premium‑grade finish – CNC‑controlled servo motion and precise gun positioning ensure identical coating thickness across flat surfaces, edges, and recesses – free from drips, sags, or misses.

• Only 2 operators required – Simple fixture‑based loading and automated cleaning keep labour costs low while maintaining high output (160–240 doors per shift).

• Paint savings – Optimised spray patterns and reduced overspray (thanks to sealed chamber and precise control) improve material utilisation by up to 30% compared to manual spraying.

• Premium solid wood and engineered doors – Interior, exterior, and fire‑rated doors requiring flawless surfaces and edge coverage, with the added benefit of dust‑free finishing.

• Cabinet doors and decorative panels – Kitchen, bathroom, and wardrobe doors with profiled surfaces, grooves, and shaped edges achieve a furniture‑grade finish.

• High‑gloss and clear‑coat finishes – The positive‑pressure environment is especially beneficial for gloss and transparent coatings where even microscopic dust particles can cause rejects.

• Facilities with frequent colour changes – The self‑cleaning system and quick‑release paint circuits drastically reduce downtime between colour switches.

• Custom and small‑batch production – Quick programme recall and easy fixture adjustment allow rapid adaptation to different door designs, making the machine equally suitable for custom order shops.