No 'pleasant cooperation' filler here — each case covers three things: what the bottleneck was, what we changed, and what the result became.
Challenge：Color changes required 40 minutes of downtime to clean the powder path, making small-batch orders nearly impossible to accept.
Solution：Rebuilt the powder supply loop with a quick-release structure, plus dual-hopper switching and an automatic purge program.
Result：Color-change downtime cut from 40 minutes to 12 minutes, significantly improving small-batch order capacity.
Challenge：Low transfer efficiency at refrigerator side-panel edges, causing a high rework rate.
Solution：Adjusted gun distance and voltage curves, added edge-compensation guns, and optimized conductive contact surfaces on the hangers.
Result：Edge coverage improved, rework rate reduced, and powder consumption per unit dropped accordingly.
Challenge：Variation in manual technique caused large film thickness fluctuations within the same batch.
Solution：Switched to automatic guns with a reciprocator, locking in gun distance and travel speed parameters.
Result：Film thickness consistency stabilized across batches, with less manual touch-up spraying.
Challenge：Many color codes and small batch sizes made an automatic line uneconomical.
Solution：Configured manual electrostatic powder guns with portable powder hoppers to shorten the color-change process.
Result：Small-batch, multi-color orders accepted as routine, with color changes kept to minutes.
Send workpiece samples and powder — we test on real equipment and deliver transfer-efficiency data and configuration recommendations.
