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Metal Coating Machinery (7)

equipo de pintura electrostatica

FOB Price: US $1 - 2,000 / Piece Get Latest Price
Min.Order Quantity: 1 Piece/Pieces
Supply Ability: 500 Piece/Pieces per Year
Port: shanghai
Payment Terms: T/T,Western Union,Paypal
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Quick Details

Type:
Powder coating unit
Substrate:
Aluminum
Coating:
Powder Coating
Place of Origin:
Zhejiang China (Mainland)
Brand Name:
COLO
Model Number:
COLO-151S,COLO-Optiflex

Packaging & Delivery

Packaging Detail: Wooden or Papaer carton ,Carton Size:L120cm,W 78CM,H 73CM,Net Weight:55KGS,Gross Weight :80KGS
Delivery Detail: 2 -10days

Specifications

1,equipo de pintura electrostatica
2,100% interchangeable with original
3,Coating: Powder Coating
4,0-100KV

equipamentos de pintura a pó

CG07 control unit of the powder coating equipment

Manual coating equipment Function description

the powder gun through the powder hose . The powder is electrostatically

charged at the nozzle of the gun. In addition, an electrostatic field is

created between the gun nozzle and the grounded object. The charged

powder spray remains adhered to the surface of the object.

The powder is fluidized by air forced through a porous plastic plate from

below. The powder acquires, thereby, fluid-like characteristics.

The conveying air, supplementary air, and rinsing air are set on the control

Unit

 

The process of the coating is like this: The powder is fluidized in the powder hopper. The injectors transport the powder through the hoses to the guns. The guns spray a powder/air mixture onto the workpieces

 

COLO Powder Coating Systems is a top supplier of powder coating systems and powder coating equipment including manual powder coating equipment, automatic equipment, spray booths,ovens and spare parts forfamous brand in China.

 

China Powder coating gun, China powder coating machine, China powder coating system, China powder coating equipment, powder coating control unit

.

 

A Brief About Powder Coating

Powder coating is a dry finishing process, using finely ground particles of pigment and resin that are generally electrostatically charged and sprayed onto electrically  grounded parts. The charged powder particles adhere to the parts and are held there until melted and fused into a smooth coating in a curing oven. Before coating, the parts to be coated are first pretreated similarly to conventional liquid coated parts. The pretreatment process is normally conducted in series with the coating and curing operatios.       

There is essentially two common ways of applying powder coating: by electrostatic spray and by fluidized bed powder coating. There are several other processes that have been developed, but they are far less used. These include flame spraying, spraying with a plasma gun, airless hot spray, and coating by electophoretic deposition.
To get an overview of the technology used in the powder coating industry click on the items below:

  • pretreatment
  • Electrostatic Spray
  • curing

Pretreatment.

Phosphating, or conversion coating, is the application of an iron or zinc phosphate coating to the substrate. Conversion coating can be a very critical part of the pretreatment process, adding significantly to the performance of the finished coating. A phosphate coating converts the metal substrate to a uniform, inert surface, which improves bonding, minimizes the spread of oxidation if the coating is scratchedand improves the overall corrosion resistance of the final part.

A conversion coating can be iron, zinc, polycrystalline, chromate, or manganese phosphate film. They are developed on both ferrous (iron based) and non-ferrous surfaces (zinc, aluminum, terne and manganese). Parts are subjected to an acidic bath and a chemical conversion forms a complete film on the part surface, changing the chemical and physical nature of the metal surface.

Henkelhas introduced a big breakthrough in surface treatment: Bonderite NT – a new surface pretreatment which is considerably more efficient, less complicated and more cost-effective than conventional iron phosphating 

Electrostatic Spray

Electrostatic spray powder coating uses a powder-air mixture from a small fluidized bed in a powder feed hopper. In some cases, the feed hoppers vibrate to help prevent clogging or clumping of powders prior to entry into the transport lines. The powder is supplied by a hose to the spray gun, which has a charged electrode in the nozzle fed by a high voltage dc power.

Electrostatic powder spray guns direct the flow of powder; control the deposition rate; control the pattern size, shape, and density of the spray; and charge the powder being sprayed .The spray guns can be manual (hand-held) or automatic, fixed or reciprocating, and mounted on one or both sides of a conveyorized spray booth. Electrostatic spray powder coating operations use collectors to reclaim over-spray. This reclaimed powder is then reused, adding significantly to the powder coating’s high transfer efficiency.

There are various gun designs that mainly differ in the method of applying electrostatic charge to the powder. In some cases, the powder is electrostatically charged by friction. The advantage is that the powder is free to deposit in an even layer over the entire surface of the part, and deposition into recesses is improved.

The film thickness is dependent on the powder chemistry, preheat temperature, and dwell time. Film thicknesses of  (40 - 60 µm) in case of plain powder ( 80 – 100 µm) in case of texture can generally be applied on  products.

Curing

When a thermoset powder is exposed to elevated temperature, it begins to melt, flows out, and then chemically reacts to form a higher molecular weight polymer in a network-like structure. This cure process, called cross linking, requires a certain degree of temperature for a certain length of time in order to reach full cure and establish the full film properties for which the material was designed. Normally the powders cure at 200°C (390°F) in 10 minutes. The curing schedule could vary according to the manufacturer’s specifications.

The application of energy to the product to be cured can be accomplished by convection cure ovens or infrared cure ovens.

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Hangzhou Color Powder Coating Equipment Co., Ltd. is leading manufcturer of powder coating equipment in china. Due to the great location, we produce the latest products. "Quality first, innovation and valuable services" is our endless purpose. Thanks to tireless efforts of all staff, we have developed into a manufacturing company specializing in the research, development, production, sales and service of electrostatic powder coating equipment. Our main products are complete automatic powder ... View detail

Basic Information Indicates information has been verified onsite by a certification specialist

Product/Service (We Sell): Electrostatic powder coating equipment  
Brands: HI COLO  
Number of Employees: 11 - 50 People  

Trade & Market

Main Markets: Africa
Eastern Asia
Western Europe
Mid East
Oceania
Southern Europe
South Asia
Northern Europe
Central America
Domestic Market
Southeast Asia
Eastern Europe
South America
North America
Total Annual Sales Volume: US$50 Million - US$100 Million  
Export Percentage: 81% - 90%  

Factory Information

Factory Size (Sq.meters): 3,000-5,000 square meters  
Factory Location: No. 57, Xiangcang Road, Xihu District, Hangzhou City, Zhejiang Province, China  
Number of Production Lines: 10  
Number of R&D Staff: Less than 5 People  
Number of QC Staff: Less than 5 People  
Management Certification: ISO9001  
Contract Manufacturing: OEM Service Offered   Design Service Offered  

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China (Mainland) | Manufacturer, Trading Company | Contact Details
Key Strengths: Assessment Report by Bureau Veritas
Top 3 Markets: North America 20.8% , South America 20.8% , Eastern Europe 8.3%
Experience: Established 2009

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