CED Coating Plant in South Africa
SEW Surface Coating Pvt. Ltd. designs, manufactures and installs CED (cathodic electro-deposition) coating plants for manufacturers in South Africa. Every plant is built at our own works in Pune, India, then export-packed and shipped to South Africa, with erection and commissioning support from our engineers.
CED is a water-based primer coating used mostly in automotive paint shops. Charged paint particles move to the component (the cathode) under a direct current, so paint reaches every corner of complex shapes. Un-deposited paint is rinsed and recovered through ultra-filtration (UF), and the film becomes hard after baking.
- Batch & Conveyorised
- UF Paint Recovery
- 1200+ hrs Salt Spray
- Exported to South Africa
CED Coating Plants for South Africa's Industry
South Africa has the continent's most developed manufacturing sector. Gauteng (Johannesburg, Germiston, Pretoria–Rosslyn), Durban and Pietermaritzburg, Gqeberha, East London and Cape Town host automotive, mining equipment, steel, appliance and electrical makers.
In South Africa, demand for CED coating plants comes mainly from automotive and component makers, engineering and fabrication units and steel structure fabricators. CED primer gives uniform film thickness, full coverage inside box sections and sharp edges, and salt spray resistance of more than 1200 hours. Paint utilisation is close to 100 percent, and because the process is water-based it carries less fire risk than solvent coatings.
Automotive and mining equipment suppliers here need finishing that meets international OEM standards.
Types of CED Coating Plants We Supply in South Africa
Batch Type (Dip Tanks)
Components are loaded in jigs and moved through dip tanks by hoist or PLC-controlled transporter.
Best for: Mixed components and medium volumes.
Continuous Conveyorised
An overhead conveyor carries parts through pretreatment, the CED tank, UF rinses and the baking oven without stopping.
Best for: High-volume automotive and component production.
Combination of Dip and Spray
Spray stages for cleaning and rinsing are combined with dip stages for phosphating and CED, to suit the part and output.
Best for: Lines that need both throughput and full coverage.
CED Coating Process Sequence
The CED process on our plants follows this sequence:
- LoadParts are hung on jigs or the conveyor.
- DegreaseRemoves oil and grease.
- Water Rinse 1 / 2Two rinses after degreasing.
- ActivationPrepares the surface for phosphating.
- PhosphateBuilds the conversion coating.
- DM Water Rinse 1 / 2Clean demineralised water rinses.
- CEDElectro-deposition of primer.
- UF 1 and UF 2Ultra-filtrate rinses recover un-deposited paint.
- DM Water Rinse 3Final rinse before baking.
- Baking OvenThe film is baked hard.
- UnloadParts are inspected and unloaded.
Fully automatic operation needs less manual effort and allows the film thickness to be controlled.
Advantages of CED Over Conventional Primer
Uniform coating
Controlled film thickness and better coverage on interior surfaces, complex shapes and sharp corners.
No runs or sags
No runs, sags or solvent boils, giving a consistent primer surface.
Corrosion resistance
Surface salt spray resistance lasts for more than 1200 hours.
About 100% paint utilisation
UF recovers un-deposited paint, which makes the process cost effective.
Safer and cleaner
Water-based process with less fire risk and fewer pollution and health hazards than solvent coatings.
Industries in South Africa That Use Our CED Coating Plants
Automotive
Vehicle plants and suppliers in Rosslyn, Durban and the Eastern Cape process body and chassis parts.
Typical requirement: Conveyorised CED line for chassis, brackets and body parts before topcoat.
Mining Equipment
Mining equipment makers process heavy fabrications.
Typical requirement: Batch CED for complex fabrications and tubular parts.
Steel Structures
Steel fabricators supply construction and mining.
Typical requirement: Batch or conveyorised CED line sized to the component and output.
Appliances
Appliance makers process sheet-metal parts.
Typical requirement: CED primer for appliance and HVAC parts that need high corrosion resistance.
Electrical & Panels
Electrical makers supply power and industry.
Typical requirement: Batch or conveyorised CED line sized to the component and output.
CED Coating Plant Specifications
| Plant types | Batch (dip tanks), continuous conveyorised, or combination of dip and spray |
|---|---|
| Process | Degrease, rinses, activation, phosphate, DM rinses, CED, UF 1 and UF 2, DM rinse, baking oven |
| Paint recovery | Ultra-filtration (UF) equipment |
| Material handling | Hoist, PLC-controlled transporter or overhead conveyor |
| Corrosion performance | Salt spray resistance of more than 1200 hours |
| Controls | Automatic operation; PLC and SCADA on request |
| Scope of supply | Design, manufacturing, erection and commissioning |
Final configuration is fixed after we study your component drawings, production rate and available floor space.
From Our Pune Works to South Africa
Plants for South Africa are fabricated and pre-assembled at our factory in Ranje, Pune, India. They are export-packed and shipped from Nhava Sheva (JNPT) port near Mumbai to Durban, and our engineers can travel to supervise erection and commissioning at your site.
- Technical study from your drawings, component details and production data
- Plant layout and process design in minimum floor space
- Fabrication and inspection at our Pune works
- Export packing and shipping documentation
- Erection and commissioning supervision by our engineers
Why Buyers in South Africa Choose SEW Surface Coating
In-house manufacturing since 1996
Our own fabrication unit in Pune gives one-roof control over design, quality and delivery commitments.
25+ years in coating systems
More than two and a half decades of experience in powder and liquid painting systems for automobile, appliance, electrical, furniture and other industries.
Layouts in minimum space
We specialise in fitting a complete line into the floor space you actually have.
Low running cost
Plants are engineered for low fuel consumption, with options such as camel back ovens, solar-assisted heating and Waste Heat Recovery Systems (WHRS).
Modern technology
Nano-technology spray pretreatment, PLC-controlled transporters and SCADA monitoring are part of our installed base.
Export experience
We handle export packing and documentation and support erection and commissioning for customers in South Africa.
Industrial Areas We Serve in South Africa
CED Coating Plant in South Africa – Frequently Asked Questions
Do you export CED coating plants to South Africa?
Yes. SEW Surface Coating Pvt. Ltd. manufactures CED coating plants at its factory in Pune, India, and exports them to customers in South Africa, with erection and commissioning support from our engineers.
What is CED coating?
Cathodic electro-deposition (CED) is a water-based primer coating. Charged paint particles move to the component under direct current, so paint reaches every corner, and the film becomes hard after baking.
What is the role of UF in a CED plant?
Ultra-filtration separates paint ingredients that do not form film and recovers un-deposited paint from the rinses, which gives close to 100 percent paint utilisation.
How much corrosion resistance does CED give?
The baked CED film gives surface salt spray resistance of more than 1200 hours.
Can the CED plant be automatic?
Yes. CED lines run on a PLC-controlled transporter or a continuous conveyor, with automatic operation and controlled film thickness.
How is the plant shipped to South Africa?
The plant is fabricated at our Pune works, export-packed and shipped from Nhava Sheva (JNPT) port near Mumbai to Durban. Our engineers can travel to supervise erection and commissioning.
How do I get a quotation for a CED coating plant in South Africa?
Send your component size and weight, production rate and topcoat requirement through our enquiry page, or call +91-99758 35066. Our engineers will prepare a layout and technical offer.
Other Products We Supply in South Africa
CED Coating Plants in Other Countries
- CED Coating Plant in Tanzania
- CED Coating Plant in Kenya
- CED Coating Plant in Uganda
- CED Coating Plant in Ethiopia
- CED Coating Plant in Nigeria
- CED Coating Plant in Ghana
- CED Coating Plant in Saudi Arabia
- CED Coating Plant in Qatar
CED Coating Plants – main product page | All locations we serve
Need a CED Coating Plant in South Africa?
Share your component size and weight, production rate and topcoat requirement. Our engineers will send a plant layout and technical offer for South Africa.
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