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Powder Coating Line

 
Why Choose Us?
 
01/

Rich Experience
Qingdao JOBON Science & Tech Development Co., Ltd, started from 1999 for the designing and manufacturing of powder coating machinery. The company has two worldwide brands: JOBON, PENTOO.

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Wide range of applications
Powder coating equipment can be widely used for all industries, ranging from small car repair shops to busy high automation factories.

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Quality Guaranteed
JOBON Company is continuously taking the leading role in the industry of powder coating and enamel coating equipment and solution. And our JOBON people is keeping hard working toward our expectation: technology makes spraying more perfect.

04/

Professional technical team
JOBON Company has been dedicated to the powder coating equipment manufacturing field, focusing on research and design. With more than 20years developing time, the company has accumulated 62 patents, and has been awarded as High Tech Enterprise from 2013 and was selected into the provincial "specialized, fined, peculiar and new area" enterprises list in 2020.

 

Definition of Powder Coating Line

A powder coating line is a production line that is used to apply a powder coating to metal products. Powder coating is a type of finishing process that uses dry powder paint to create a durable and long-lasting finish on metal surfaces. Powder coating lines are designed for applying protective and decorative polymer coatings to a wide range of metal products, including structural furniture, household appliances, automotive and agricultural machinery components, armored doors, commercial equipment, architectural aluminum profiles, and much more.

 

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Benefits of Powder Coating Line

 
 
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Easy automation

The powder coating line can be easily automated, saving time and labor. Automated systems can precisely and continuously control the coating process, minimizing human errors and increasing production efficiency.

 
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Wide range of applications

Passed ISO9001 certification and obtained relevant patent certificates.

 
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Efficiency and cost savings

Utilizing a powder coating line can minimize material and resource waste, enhance production efficiency, and reduce costs associated with the coating process.

Semi Automatic Powder Coating Line

 

Process of Powder Coating Line

 

 

A powder coating line is made up of three different processes:
① Pretreatment: Where the product or substrate is cleaned before coating to ensure adhesion.
② Application: Where the powder is sprayed on, or the product dipped into the powder.
③ Curing: The curing process first melts the powder so that it flows into an even coat, then cures it to form the durable finish.

Each application process has its own set of equipment requirements, which will depend on whether you choose to use manual or automated systems. Equipment requirements can also vary depending on the type of application, where spray or dip impacts not just the way the powder is applied, but the speed at which can happen, and the space required to perform this process.

 

 

Complete Set of Powder Coating Line
The items to be coated are hung on a conveyor and successively go through all stages of powder painting technology. The coating line includes:
• Chemical pretreatment tunnel for surface cleaning and formation of a protective conversion layer;
• Drying oven with intensive hot air blowing for drying parts after washing;
• Paint booth for applying powder paint automatically or manually;
• Powder polymerization oven to form a monolithic coating with specified aesthetic and functional properties;
• Overhead conveyor for transporting coated items through all stages of the technological cycle;
• Computerized PLC control panel with contact screen to monitor process parameters and control line operation.

 

Maintenance of Powder Coating Line: Keep Your Racks and Parts as Clean as Possible

 

The powder coating process will inevitably be a messy one, so you can expect to see contaminants such as dirt, oil, grime, rust, grit, and other forms of residue building up on your rack and parts. The reason why such contaminants are so undesirable is the fact that they are capable of causing flakes, bubbles, and cracks to form on the powder coating in the course of the curing process.


The best way to avoid these potential dangers will be to thoroughly clean out the parts and racks before you start the spraying process so that you eliminate any possible surface contaminants. The most effective cleaning methods include using chemical pretreatments and blasting followed by wipe-downs. An essential element of parts preparation includes making sure that all racks are properly grounded.


This is of vital importance to the safety of powder spray operators as it will keep them safe from potential short circuits and electrical risks. Rods and Faraday cages should be incorporated into the booth design and kept entirely free of any debris or residue, as these may interfere with their effectiveness.


Without these approaches, powder painters might have an unnecessarily difficult time performing their duties, especially when it comes to dealing with corners and tight angles.

 

vertical powder coating line

 

Powder Coating Line: Is Powder Coating Better Than Paint?

• Powder coating and painting offer similar benefits. They protect parts from corrosion and damage while providing an aesthetically pleasing finish. As we've discussed, each has advantages and disadvantages. Which is "best" depends on the requirements of the project.
• Powder coating generally provides a thicker, more damage‑resistant finish that needs less maintenance than painted finishes. It is, however, more expensive, and it is not appropriate for parts that require thin finishes. On the other hand, paint is sufficiently durable for many applications, components can easily be repainted in the field, and painting is inexpensive compared to powder coating.
• Finish thickness in the U.S. is measured in "mils," which are equivalent to a thousandth of an inch or about 0.025 mm. Powder coating thickness varies depending on the application, but between 2.5 and 3 mils is a typical minimum, rising to 6 mils and more for applications that require additional protection. Paint's thickness varies with the type of paint and the number of coats, but between 1 and 2 mils per coat is a reasonable estimate. If thinner finishes are desired, galvanization or conversion coating may be a better option.
• Before choosing a powder‑coated finish or a painted finish for your parts, consider the durability, appearance, maintenance, thickness tolerances, and cost requirements on a case‑by‑case basis.

 

Building a Powder Coating Line

 

 

Building a line means selecting the right equipment that meets your needs. If you have a small run of products that are done by hand, then obviously the equipment required will be much reduced compared to someone setting up a fully automated production line to coat hundreds of products per day.

 

Understanding your own needs is a big part of planning the installation. Think about how you will coat products. If it's a manual system, will it be faster to work in batches? If so, you will need a spray booth big enough to fit them. Think about how best to optimize your process, and if working on 20 products at a time is the best outcome, you need a paint booth and curing oven big enough to fit those 20 objects in.

 

As you can see, the key to setting up an effective and efficient powder coating line is to assess your own specific needs and plan accordingly. In addition, think about how the product will move through the various stages of the process, from pretreatment to application and curing. For automated systems this may be a continual conveyor, for manual systems, ensuring that there is ample room to maneuver parts by hand, and space to store them before being worked on should be considered too.

 

Through careful planning, and with the help of industry experts, a powder coating line that meets your precise needs can be installed and operational relatively quickly, providing years of effective performance.

 

How to Choose the Most Suitable Powder Coating Line for Your Business?
 

As one of metal surface treatment methods, powder coating line is more and more used for many industries. Such as aluminum profiles, electric cabinets, racks,shelves, agricultural machinery, and other metal industries. There are many different kinds of powder coating line in the market, different supplier has different structure on powder coating line.

1.What products do you plan to spray, and what's the maximum size of them and the capacity requirement.
These three information affects the space of your factory needed.
① The capacity decides the type of the line you need: fully automated powder coating line, semi-automatic powder coating line or manual powder coating system.
② The maximum size of the products decide the size of the curing oven. Powder coating oven as one of the most important part of powder coating line, curing time will affects the scale of the line.
③ The products you plan to spray also decide the steps of the powder coating line. For example, whether the products need pretreatment system or pre-heating before powder coating. Different material of the products use different process and time of powder coating line.

2. The weight of products will affect the conveyor. We have different kinds of conveyor for powder coating line. From less than 1kg to more than 10 tons products, we could provide the most suitable solution for your business.

 

Our Factory
 

Qingdao JOBON Science & Tech Development Co., Ltd, started from 1999 for the designing and manufacturing of powder coating machinery. The company has two worldwide brands: JOBON, PENTOO.
JOBON Company has been dedicated to the powder coating equipment manufacturing field, focusing on research and design. With more than 20years developing time, the company has accumulated 62 patents, and has been awarded as High Tech Enterprise from 2013 and was selected into the provincial "specialized, fined, peculiar and new area" enterprises list in 2020.
JOBON Company is continuously taking the leading role in the industry of powder coating and enamel coating equipment and solution. And our JOBON people is keeping hard working toward our expectation: technology makes spraying more perfect.
Powder coating equipment can be widely used for all industries, ranging from small car repair shops to busy high automation factories. It can be used for perfect metal surface powder coating of different types of products: auto parts, wheels, LED radiator, heating radiator, air conditioner housing, washing machine cabinet, water heater tank, kitchen appliance, BBQ grill, extinguisher box, electrical cabinet, industrial shelf, fitness equipment, aluminum profile, security door, steel pipe, gate, fence, cylinder, water meter, air compressor tank, gas tank etc.

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Main Products Development History
 

In 2004, the first generation of electrostatic powder coating machine PF-01A was launched.
In 2004, the high-voltage built-in PF-02K electrostatic powder coating machine was launched.
In 2005, MA3300 high-voltage built-in electrostatic powder coating machine was put on the market.
In 2011, MA3300D digital control electrostatic powder coating machine was launched.
In 2018, the S10 series touch screen electrostatic powder coating machine is launched.
In 2020, M2 digital control electrostatic powder coating machine is launched.
In 2021, the S20 series touch screen electrostatic powder coating machine is launched.

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Our Certificate
 

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Ultimate FAQ Guide to Powder Coating Line
 

 

Q: What is a powder coating line?

A: Powder coating lines are designed for applying protective and decorative polymer coatings to a wide range of metal products, including structural furniture, household appliances, automotive and agricultural machinery components, armored doors, commercial equipment, architectural aluminum profiles, and much more.

Q: What is the process of powder coating lines?

A: Preheating: Parts are preheated to ensure the powder adheres effectively.
Dip-Coating: The next step involves dip-coating the preheated part.
Submerging: The part remains submerged in the fluid bed to allow the powder paint to create a thick, wear-resistant coating.

Q: What is the powder coating line process step by step?

A: First, an alkaline cleaner takes off organic liquid and dust contaminants. This stage finishes with two thorough rinses to remove all surface debris and cleaning chemical. Next, the part undergoes an iron phosphate application to prepare the surface for better powder coating adhesion, and improved corrosion resistance.

Q: What is the sequence of powder coating line?

A: As the parts to be coated are grounded, the powder is attracted towards the part via the electrostatic process. Once the powder is applied the parts are cured in an oven, which melts and cross-links the powder over the surface of the part and creates a tough, scratch resistant and beautiful finish.

Q: What is the principle of powder coating line?

A: Powder coating is based on the principle that objects with opposite electric charges (positive and negative) attract one another. Powder particles are negatively charged by passing them through a special spraying gun. This results in an electric field between the spray gun and the earthed component.

Q: What is the life expectancy of powder coating line?

A: Most powder coating line applications last for 15-20 years. These coatings are highly resistant to weather, chemicals, and corrosion, and offer electrical insulation, and vibration and sound deadening benefits.

Q: Can you recoat over powder coating line?

A: Most of the time – is yes. There's nothing about powder coating that makes the material fundamentally incompatible with more powder coating. You can have the powder applied and cured to form a new coating that looks just like new, in most cases.

Q: Powder coating line:How can you tell if powder coating is good quality?

A: You can grasp the powder with your hand and feel it is smooth. The smoothness is generally good quality. If the feeling is rough, the quality of such powder coating is poor. It may not be easy to spray, and it may be easy to drop powder.

Q: Powder coating line: How to make powdercoat more durable?

A: Cleaning can include washing, wiping, and/or blasting. Other pre-treatment processes like phosphating or etching will improve the adhesion of the powder coating giving you a better, more durable finish. There are several different steps to prepare the surface depending on the metal, the part, and your requirements.

Q: How do I get a smooth finish with powder coating line?

A: A smooth powder appearance requires a clean and smooth substrate surface. Coating smoothness can also be affected by cure time and temperature profile and by the rate of increase in the temperature. The specific powder material and the flow additives can be affected by the profile in the cure oven.

Q: How do you fix peeling powder coating line?

A: Clean off the object, scrape away loose powder coat and paint, and then sand it smoothly to provide a better surface for the paint to adhere to. After you prime the surface, it's ready to paint!2

Q: What is the principle of powder coating line?

A: In this coating process, powder granules are electrostatically charged during spraying with air and attracted to the earthed component as a powder cloud. The powder layer melts when the component is heated and forms a closed coating after cooling. Eps is a very environmentally friendly and economical coating process. Different types of powder coatings can be used to coat different substrate materials and meet different requirements.

Q: Powder coating line:What is the electrostatic phenomenon in powder coating?

A: Because opposite charges attract, negative electrons rush toward the relatively positive ground, and positive ions try to escape from the coating layer toward the gun's negative electrode. As a result of this intensive flow of electrons and ions, streamers develop through the layer of powder coating.

Q: What is surface preparation for powder coating line?

A: The first step to prepare a surface for powder coating is to wash away surface soils. Clean, reverse osmosis or deionized water should be used to remove dirt, dust, grime, and grease from the substrate. For tougher soils, you can use a pressure cleaner to remove them mechanically.

Q: What is the process of powder coating lines?

A: Preheating: Parts are preheated to ensure the powder adheres effectively.
Dip-coating: The next step involves dip-coating the preheated part.
Submerging: The part remains submerged in the fluid bed to allow the powder paint to create a thick, wear-resistant coating.

Q: What are the raw materials for powder coating line?

A: Powder coating is a type of coating that is the size of a micron, comprised of solid raw materials such as resin, and does not contain any solvents. All powder coating raw materials such as pigments, hardeners, fillers, and additives are in solid form and these materials are homogenized by being mixed together.

Q: What is the manufacturing technology of powder coating line?

A: Powder coating is a dry finishing process, using finely ground particles of pigment and resin that are generally electro statically 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.

Q: What is the 7 times process in powder coating line?

A: The 7 tank process is a widely used method for surface preparation in powder coating. It involves a series of steps that ensure the surface is thoroughly cleaned, free from contaminants, and properly prepared.

Q: What is the preparation for powder coating line?

A: First, an alkaline cleaner takes off organic liquid and dust contaminants. This stage finishes with two thorough rinses to remove all surface debris and cleaning chemical. Next, the part undergoes an iron phosphate application to prepare the surface for better powder coating adhesion, and improved corrosion resistance.

Q: powder coating line: What is coating manufacturing process?

A: Coating processes are aimed at transferring a liquid onto a web. The simplest forms of coating process rely on the viscosity of the liquid to control the thickness and uniformity. Coatings applied at atmospheric pressure have solvents added to reduce the viscosity and so assisting flow and leveling.

Q: What is the manufacturing process of powder coating line?

A: Powder coating product manufacture and quality control. The state of the art technology used for producing industrial powder coatings consists of several distinct stages, namely: Weighing, premixing and size reduction of raw materials. Extrusion of pre-mix, cooling and crushing of the extrudate into chips. Micronising the chips into the final powder.

As one of the leading powder coating line manufacturers and suppliers in China, we warmly welcome you to buy high-grade powder coating line for sale here from our factory. All our products are with high quality and competitive price.

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