Insulation Coating Busbar Solutions: Quality & Reliability
Jul 15, 2025
We design and manufacture Insulation Coating Busbar solutions that power demanding electrical systems. From Powder Coated Bus Bars for compact switchboards to Epoxy Spray Copper Battery Bus Bar assemblies for next-generation EV packs, every product is molded, coated, and tested in our ISO9001-2015-certified plant. Complete in-house machining also allows us to reproduce every metal accessory, so customers receive a single-source, fully finished power path. As our clients say, "You get what you pay for"-and what they pay for is zero-defect quality delivered on time.
Production process
Pre-treatment
Copper bars are degreased, shot-blasted, and pre-heated to 80 °C to remove oxides and create a micro-rough surface for optimal adhesion of the epoxy layer.
01
Electrostatic Epoxy Spray
A negative corona charges the powder particles; the grounded copper bar attracts them, forming a uniform 0.3–1.2 mm coating. This step is identical for Epoxy Spray Copper Bus Bar and Epoxy Spray Copper Battery Bus Bar lines.
02
Curing Oven
Parts travel through a 200 °C, 10-minute infrared tunnel, cross-linking the resin into a dense, pin-hole-free dielectric layer ≥30 kV/mm.
03
Precision Bending & Final Bake
CNC-controlled mandrels create Epoxy Powder Insulated Bending Copper Busbar shapes; a 15-minute post-bake eliminates internal stress and locks in dimensional tolerance ±0.1 mm.
04
100 % Electrical Test
Each Busbar Insulating Coating Powder withstands 5 kV AC for 60 s; partial discharge <10 pC at 1.5 kV confirms void-free insulation.
05
Standard Configuration
1. Conductor: High-conductivity Cu, cross-sections 10 × 2 mm to 120 × 12 mm.
2. Coating Thickness: 0.4 mm ± 0.05 mm standard; custom 0.7 mm for marine environments.
3. Dielectric Strength: ≥30 kV/mm.
4. Mechanical End Prep: Drilled, tapped, or welded studs; nickel-plated contact zones maintain <0.05 mΩ resistance after 500 mating cycles.
Type Summary
• Powder Coated Bus Bars – Flat or laminated, indoor switchboards, –40 °C…+120 °C.
• Epoxy Spray Copper Battery Bus Bar – Flexible links, vibration-proof for EV & energy storage.
• Epoxy Powder Insulated Bending Copper Busbar – shapes for compact inverters, minimal clearance.
• Hybrid Epoxy-Heat-Shrink Dual Layer – Outer protective sleeve for rail traction, salt-fog 1000 h.
Products feature
| Durability | Epoxy coatings resist UV, moisture, and chemical corrosion, ideal for outdoor or marine use. |
| Safety | Non-toxic, flame-retardant, and arc-resistant properties. |
| Precision | Ensures ±0.1mm tolerance for seamless integration. |
| Customization | Colors, logos, or tags can be embedded. |
Products application
Renewable Energy: Solar/Wind farm busbars with anti-corrosion coatings.
EV Battery Systems: Epoxy Spray Copper Battery Bus Bar for thermal management.
Industrial Machinery: Dust-proof coatings for mining equipment.
Data Centers: Low-impedance designs to reduce energy loss.
Packaging Transportation
1. Protective Packaging: Materials such as cardboard, foam inserts, and protective wraps are used.
2. Logistics: Global shipping with humidity-controlled containers for sensitive coatings.
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