Automotive Bumper Cathodic Electrophoretic Coating Production Line

ST-EC-AB2320

Price: USD100,000~300,000

British HAYTON technology combined with FAW (China First Automobile Works) technology is adopted
A ship-type pass-through cathodic electrophoresis tank is used
The electrophoresis tank is manufactured from thickened δ15 reinforced PP plates
A four-stage spray process is applied after electrophoresis to ensure full recovery of electrophoretic paint, achieving a recovery rate of over 99%

◆ Operation platforms and dust-proof rooms are installed on both sides of the electrophoresis tank;
◆ The post-electrophoresis spray rinsing section is equipped with a stainless steel sheet booth;
◆ All post-electrophoresis solution storage tanks are made of PP plates;
◆ The total height of the post-electrophoresis tanks is 2900 mm, which is 100 mm higher than the electrophoresis tank. This design allows UF1, UF2, and other post-electrophoresis tanks to overflow freely, facilitating bath solution management and adjustment. UF0 is sprayed directly on the auxiliary electrophoresis tank.

Coating solutions for Industry

Automotive Industry

Electrophoretic Coating Line for Automotive Bumpers

Application

This electrophoretic coating (E-coat) production line is engineered for coating automotive battery boxes, delivering a strong, long-lasting surface that effectively resists corrosion and harsh environmental conditions.

Project Summary

From the initial stage to final delivery, we worked in close coordination with the customer to fully understand their technical and operational needs. Each section of the production line was carefully engineered according to the actual site layout, with detailed drawings developed and repeatedly optimized until a complete and practical E-coating line design was confirmed. Manufacturing was carried out strictly in accordance with the approved drawings, supported by stringent quality control procedures and regular progress reporting. After shipment, our technical team traveled overseas to supervise installation and provide on-site operational support. Following six months of careful installation, testing, and commissioning, the project was completed on time, with all systems operating reliably and as designed.

E-Coating Process

Electrophoretic coating—also referred to as electrophoretic deposition (EPD), electrocoating, cathodic electrodeposition, or electrophoretic painting—is a surface treatment method in which metal components are submerged in a water-based paint bath. When an electric current is applied, the paint particles migrate toward the metal surface and form a uniform, dense, and highly durable coating.

Customized Solutions and Quotation

If you are looking for a tailored design, please contact us. We provide customized coating production line solutions based on your product specifications, helping you achieve optimal productivity, coating performance, and overall quality.

Electrophoretic Coating Process Parameters

No	Item	Detailed Configuration
1	Process Type	Full immersion type
2	Treatment Time	3.0min
3	Section Lengths	Entry section: 5.00 m; Treatment section: 9.00 m; Exit section: 5.80 m; Total length: 19.80 m
4	Temperature	25–35 °C
5	Booth Dimensions	L19.80 × W2.76 × H6.15 (m); leg height: 2.15 m
6	Operating Platform	L19.80 × W0.70 × H2.20 (m); leg height: 2.15 m
7	Materials	E-coat tank: δ15 reinforced PP plate; frame: 160 × 80 × 4 rectangular steel tube Dust-proof enclosure: frame made of 50 × 50 × 3 galvanized square tube; wall & roof panels made of δ0.80 SUS304 stainless steel sheet; windows made of δ5 glass Operating platform: support frame made of 50 galvanized square tube; walkway made of δ2.5 checkered steel plate
8	E-coat Agitation Pumps	HCZ100-80-315; speed: 1450 r/min; power: 15.0 kW; quantity: 2 units; horizontal type (shared operation)
9	All Piping	Before plate heat exchanger: PPR pipes; after plate heat exchanger: PVC pipes
10	Agitation Spray Nozzles	Venturi nozzles G90: 39 pcs; G40: 5 pcs; total 14 rows
11	Ultrafiltration Unit	SUF-1200; domestic manufacture; Hydranautics (USA) membranes
12	Chiller & Heater Unit	40 HP heating & cooling unit; manufactured by Angus (Hong Kong); heating capacity: 72 kW
13	Rectifier	400 A / 300 V
14	Anode Pipes	Effective length: 2000 mm; total length: 2600 mm; total quantity: 30 sets
15	Stainless Steel Bag Filters	RB-4AL; 2 units
16	Stainless Steel Plate Heat Exchanger	Heat exchange area: 20.0 m²; model: BR0.2T
17	Anolyte System	Tank, pumps, and piping made of PP plates and UPVC pipes
18	Pure Water System	Capacity: 3 T; 1 unit; equipped with two pure water tanks; single-stage reverse osmosis
19	Backup Power Supply	Supplied by customer