Industry Solutions

The same gun, used on aluminum profiles versus automotive parts, requires completely different hangers, gun distance, voltage and conveyor speed. Below, recommended configurations and common issues are organized by industry — confirm the industry first, then the equipment.

Aluminum Profile

Aluminum Profile Coating

Constant gun travel on long parts, color change downtime and hanger conductivity are the three key points of an aluminum profile line.

Long parts with a long single-face stroke make it hard for manual gun travel to stay constant, causing film thickness to differ at the two endsMany colors and small individual batches mean long color change downtime, so small orders are hard to acceptHanger conductivity declines after long use and transfer efficiency falls month by month with no obvious cause

Home Appliance

Home Appliance Sheet Metal Coating

Appearance parts are extremely sensitive to color deviation and film thickness; bare edges and color deviation are the most common causes of rework.

Large flat parts such as refrigerator side panels and air conditioner housings get insufficient powder at the edges, leaving bare substrateFilm thickness fluctuates widely within the same batch, and the resulting appearance color deviation is judged non-conforming by the customerFrequent color changes leave powder residue in the booth and recovery system, causing color cross-contamination

Auto Parts

Auto Parts Coating

Requirements for film thickness consistency and batch stability are far higher than for ordinary industrial parts.

Film thickness varies widely between workpieces in the same batch, causing failed customer sampling inspectionInternal cavities and welded positions on complex structural parts are hard to coverHigh powder consumption per unit, and the reclaimed powder blend ratio is difficult to get right

Furniture Hardware

Furniture Hardware Coating

Many colors, small batches and mixed shapes mean an automatic line is often uneconomical; the focus is on color change speed.

Small quantities per batch with many colors make automatic line color change costs higher than manual workRecesses on irregular parts and the inner walls of tube parts are hard to coverLong parts such as folding chair frames and table legs are hard to coat with constant gun travel

New Energy Battery

New Energy Battery Housing Coating

Battery housings have additional requirements for insulation performance, film thickness uniformity and cleanliness.

Insufficient film thickness on the insulating coating causes the withstand voltage test to failHousings have deep structures and many internal cavities, making coating coverage difficultHigh cleanliness requirements mean workshop dust control and coating interfere with each other

Pipe & Guardrail

Pipe & Guardrail Coating

Long tube parts and mesh parts are two extremes: one is hard to run at constant speed, the other is hard to get powder to adhere to.

Long tube parts mean manual gun travel produces a noticeable film thickness difference from end to endWire mesh and grating workpieces have fine wire diameters that the electrostatic field cannot effectively adhere toHeavy individual pieces make hanger load capacity and grounding prone to problems