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Automatic Powder Coating Line with Spraying Pretreatment

COLO provide professional service of powder coating line designing, manufacturing, assembling, commissioning and training for global customers, meets the demands of different scale productions, budgets, factory size, simple or complex shaped workparts, etc.
 
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COLO Automatic Powder Coating Line with Spray Washing Pretreatment

This automatic powder coating line realizes fully-continuous productions from pretreatment spray washing, drying, powder spraying  to curing, achieves highest production capacity, superior finishing quality,  fast color change demands, requires minimum labor and downtime, suitable for customer who has sufficient factory space and budget.

COLO Automatic Powder Coating Line with Spray Washing Pretreatment

Automatic Powder Coating Line with Spraying Pretreatment Working Process

  • A complete automatic powder coating line has a closed-circuit overhead conveyor for continuous transporting workparts from stage to stage,

  • The beling coated workparts will be firstly transported into the spray washing tunnel for pretreatment chemical and water cleaning, in order to get clean, adhesive surfaces.

  • The workparts after washing must be sent into a drying tunnel oven to remove moisture in order to not affact powder applyimg.

  • After drying  they will pass through the spray booth obtaining consistent and uniform powder spraying by automatic powder guns and reciprocators.

  • This process is accomplished at an automatic powder booth with cyclone and filter stage, thus oversprayed powders are mostly collected that ensures a dustless workshop, at the same time those powders will be transferred to a powder management center for recycling.

  • After powder spraying, workparts will enter into a uniformly-heated curing tunnel, when they exit from the tunnel, they get quality cured results with a durable powder film.

(Automatic Powder Coating Line Customer Case in Argentina)


Automatic Powder Coating Line Configurations

powder coating pretreatment

Spray Washing Powder Coating Pretreatment

Spray washing powder coating pretreatment is suited for simple shaped workparts with bulk production in fully-automatic line

The processing of a basic spray washing system mainly include 3-5 stages, such as degrease, conditioning, phosphate, rinse. Actual stages should be decided and built according to customer's products.

Works by using spraying nozzles and circulation pump to spray chemicals onto the processed objects to remove rusts, oxide layers, old coats to prepare clean, adhesive surfaces

The system mainly configures tunnels, pharmaceutical tanks, water tanks which are made of tainless steel, as well as durable spraying fan Nozzles


drying tunnel oven

Drying Tunnel Oven

1. Remove the moisture and dry the workparts after spraying wash pretreatment,  designed for continuous operations in automatic coating line.

2. Applies Italy Riello burner for quickly raising to required drying temperature, save your time.

3 Configures powerful circulation fans creating uniform hot airflow in inner chamber

4 Construced with 100mm thickness rock wool board, ensures minium temperature dropping, as well as 1.5mm thick SGCC durable wall.

5. Designed air curtains at both ends, minimizes heat loss, saves your energy.



Automatic Powder Coating Booth

Automatic Powder Coating Booth

PP plastic made powder coating booth with cyclone recovery is the most efficient solution for fast color change or high powder recovery demands in automatic production line.

As the anti-static plastic does not attract powders, the booth is easier to clean and more powders will be recycled, greatly reduces you production costs.

Mono-cyclone separator and after filter unit recovey system, make the least powder accumulation and the most environmental-friendly emission.

The powder coating booth is designed with automatic spraying station for reciprocating guns, as well as manual coating station for after-checking.


powder coating booth floor - 副本

Self-cleaning Booth Floor

The powder spray booth floor is designed with air knives and mesh plates specially for self-cleaning.

The cleaning system is controlled by air blasts, which remove the powder accumulated on the booth floor and push it to the extraction and recovery system, increasing powder coating recovery.

COLO could design different booth floors to suits special products and requirements.



colo-191s powder gun control

COLO-191S Automatic Powder Coating Control

COLO-191S powder coating unit applies latest DVC technology allows a flexible and accurate setting of all parameters. 

Three are touch keys to select 3 pre-set application programs ideal for beginners,  "Flat-parts coating," "Complicated parts coating," or "Re-coating Workpiece."

Allows experienced users to create and store 20 application programs, optimized for their parts and powder.

This precise control unit delivers more uniform powder cloud and easy to penetrate deep corners.




automatic powder spray gun

100kv Automatic Powder Spray Gun

The COLO-08 100 kV electrostatic spray gun maximizes powder charging capacity, and always maintains highest transfer efficiency even after long time, most powders are attracted to the metal parts with least material waste.

Comes with full array of nozzle assortment to optimize your spraying effect, including flat nozzles,  round snozzles with different size deflectors, and extension nozzles for better penetration.



Automatic Powder Coating Reciprocator

Powder Coating Reciprocator & Central Cabinet

All spraying guns are mounted on an arm extended from a carriage, whose movement is programmed in various speeds & strokes to suit conveyor speed & object height respectively.

All powder coating controllers are integrated in a central cabinet for convenient operation, it enables to set parameters only at one host unit to control whole system. The quantity of the controller units can be customized

The heavy-loaded reciprocator could adapt to continual load everyday, driven by frequency motor controlled via PLC, giving more smooth, stable and precise motion, ensures consistent powder film thickness with great powedr savings.

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powder coating feed center

COLO-6600 Powder Feed Center

COLO advanced Powder feed center continuously, uniformly, quantificationally feed the powder to the spray gun, improve application quality

Achieves automatic cleaning of spray guns, powder hoses, injectors during color change, reduce manpower and increase efficiency.

A sieving section makes sure only quality powders are recyled, the mixing of fresh and recovery powders dissolving and loosening of powder accumulations for even powder flow,

A user-friendly PLC control system with touching screen panel makes it easy to handle the process.



powder curing tunnel

Powder Coating Curing Tunnel

Our curing tunnel is ideal for automatic powder coating line in continuous operation with highest productivity.

Made of 100mm rock wool board with galvanized sheet wall and durable steel skin , features durable, long life and heat-resistent.

Applies Riello burner quckly raising to required temperature up to 250'C,  saving your time everyday. Heating source is recommended using gas or diesel.

With  fans circles hot air throught the entire chamber ensures even temperature and quality curing results.

Designed air curtains at both entrance and exit, minimizes heat loss, saves your energy.

Thanks to all the high performance components and structures, the heat variance over the entire oven is less than 3 degrees.



powder coating conveyor system

Overhead Conveyor System

A complete overhead conveyor system includes, rails (or I beam), chains, drive unit, hangers, trolleys, tension device, etc

We supply lightweight track conveyor system with single point loading capacity less than 100kgs and heavy-duty I beam conveyor system with loading capacity 100-500kgs

The type of conveyor selected for your operation will depend on the weight, size and even the shape of the items being transported. COLO design conveyor system based on your production requirements.


COLO Powder Coating Line Cases -Global Projects for Various Industrial Applications

Automatic powder coating Aluminium Profiles
Aluminium Profiles
Automatic powder coating auto parts
Auto Parts
Automatic powder coating furniture
Metal Chair & Furniture 
Automatic powder coating shelves
Metal Shelves & Plates


If You Require an Automatic Powder Coating Line Specially for Your Products and Requirements, Welcome Send us a Consultation

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