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Experts in electrostatic powder coating line equipment and solutions.
From advanced powder spraying machines to powder spraying lines, we provide cutting-edge solutions to improve efficiency and quality for customers with powder coating equipment needs around the world.

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Coating Production Lines

Elevator

Maximum workpiece passing size	611.5 (m)
Workpiece type	Elevator accessories
Production capacity	500 sets/month
Pretreatment method	Manual polishing
Spray room	Walk-in manual spray booth
Heating energy	Natural gas
Air supply	High-power circulation fan
Heat control	Variable temperature

This electrostatic coating equipment is designed and built by us for an elevator company. The maximum passing size of the production line is 6 meters long * 1 meter wide * 1.5 meters high. The coating products are mainly elevator assembly parts. The monthly spraying volume is 500 sets of elevators. The company is positioned in the middle and high end of the market. Process flow: workpiece grinding pretreatment - hanging workpiece - powder coating - out of the powder coating room into the curing furnace - curing completed - cooling and removing the workpiece.

Elevator industry

The elevator electrostatic powder coating line utilizes electrostatic spraying to coat elevators, offering environmental protection, efficiency, and an attractive finish. Widely used in elevator industries, it ensures safe, eco-friendly, and high-quality coating with proper equipment and process configuration.

The electrostatic powder coating line uses a high-voltage generator to create an electrostatic field, spraying powder onto workpieces for even coverage. High-temperature curing then forms a smooth, uniform, and durable layer that firmly adheres to the surface.

Components

Electrostatic generator

Generates an electrostatic field to provide electrostatic adsorption force for the spraying process.

Spray gun

Sprays powder coating onto the surface of the workpiece, has electrode self-cleaning function and improves powder atomization effect.

Powder supply system

Used to feed powder coating into the spray gun, with a variety of nozzles to choose from to adapt to various shapes of workpieces.

Electrical control system

Used to control the operation of electrostatic generators, spray guns and other equipment, and adjust electrostatic voltage, current and other parameters.

Drying/curing equipment

High-temperature curing of the coating so that it adheres firmly to the surface of the workpiece.

Conveying system

Used to feed the workpiece into the coating line to achieve automated production.

Features

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How to choose When purchasing a powder coating line in the elevator industry, here are some important considerations that
will help ensure the performance, efficiency, and final coating quality of the coating line:

Part size and shape

Consider the size and shape of the elevator parts to ensure that the coating line can accommodate parts of different sizes and complex shapes.

Coating efficiency

Select equipment that can provide an efficient coating process, including a highly automated spray system to improve production efficiency.

Coating quality

Ensure that the coating line can provide a uniform, high-quality coating, which is critical to the appearance and durability of the elevator.

Environmental standards

Powder coating is an environmentally friendly coating method because it contains almost no volatile organic compounds (VOCs). Choose equipment that meets local environmental standards and requirements.

Energy consumption and operating costs

Consider the energy consumption and overall operating costs of the coating line, including maintenance, powder consumption, and energy use.

Equipment reliability and maintenance

Select a reputable manufacturer to ensure the reliability of the equipment and consider long-term maintenance and support.

Pretreatment adaptability

Elevator parts usually require pretreatment before painting. Ensure that the coating line is compatible with pretreatment equipment, such as degreasing, phosphating and cleaning.

Automation

According to the production scale and demand, select a coating line with an appropriate degree of automation to reduce manual intervention and improve consistency.

Production line layout

Consider the layout design of the production line to ensure smooth logistics and reduce the moving distance and time of work-in-progress.

Technical support and training

Select a supplier that provides comprehensive technical support and operation training to ensure that operators can use and maintain the equipment correctly.

Scalability and upgrade capability

Consider possible future capacity expansion or technology upgrades, and select a coating line with scalability and upgrade capabilities.

Safety standards

Ensure that the coating line meets all relevant safety standards, including electrical safety, mechanical safety and operational safety.

Return on investment

Evaluate the overall return on investment, considering equipment cost, production efficiency, maintenance cost and expected benefits.

Order Process

Send requirements

First, please leave your contact information and we will contact you to understand your requirements. We will have professional technicians to communicate with you.
Design plan

The design team will carefully check your requirements and provide suggestions on how to improve your concept. We will design the equipment plan for you and quote.
confirmation

After the plan and quotation are confirmed, we will design detailed drawings for you, check the details with you, and develop the final implementation plan.
Cooperation and delivery

Signing a contract ensures the quality of your cooperation project with us. All items are customized and arranged in cargo containers to ensure that they arrive safely and on time.

Customization

2020/08/05

Customization of conveying system

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2020/08/05

Capacity customization

Plan production lines according to customer capacity to meet customer production needs.

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Customization of electrostatic powder spray booths

2020/08/05

Customization of electrostatic powder spray booths

Customize spray booths that meet spraying needs according to the type of customer product color.

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2020/08/05

Pre-treatment cleaning system

Customize pre-treatment systems that meet workpiece cleaning according to the customer's actual production needs.

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2020/08/05

Customization of heating system

Customize heating systems that meet customer needs according to the customer's local heating energy options.

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Customization of electrostatic powder spray guns

2020/08/05

Customization of electrostatic powder spray guns

Customize powder spray guns that meet customer production needs to improve coating quality and efficiency

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Customer Reviews

Ryan from Canada

Foshan Nanhai District Ketu Machinery Equipment Co., Ltd.'s professional knowledge and experience in the industry are truly excellent. Their team not only demonstrated superb technical capabilities, but also showed a high sense of responsibility and professionalism in cooperation.

Alexander from America

The quality and color of the products sprayed with their equipment are very good. When our products were inspected by our customers, the superb quality of the product coating was recognized by them, which helped us remain in their minds.

Ryan from Canada

We are very satisfied with choosing Ketu as the manufacturer of our electrostatic powder coating production line. They have rich knowledge in the field of coating and can quickly understand our needs. The production line they designed performs very well in space and energy efficiency, saving a lot of space at our site. Additionally, the equipment operation is very stable.

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1. Why is the coating not shiny enough?

Reasons: The baking time is too long, the temperature is too high, other harmful gases are mixed in the baking, the workpiece surface is too rough, and the pre-treatment method is not selected properly. Solutions: Adjust the baking time and temperature, ensure the baking environment is clean, and select the appropriate pre-treatment method
2. Why does the coating change color?

Reasons: Repeated baking, other gases are mixed in the oven, and the baking is excessive during curing.
Solutions: Optimize baking conditions, purify the baking oven, and strengthen cleaning before construction
3. Why is the coating surface orange peel?

Reasons: The thickness of the sprayed coating is uneven, the powder atomization is not good, the spray gun has powder accumulation, the curing temperature is low, the powder is damp, the workpiece grounding is poor, the baking temperature is too high, the workpiece itself has material problems, and the pre-treatment is not handled well.
Solutions: Adjust the distance and angle of the spray gun to ensure uniform powder atomization, control the curing temperature and coating thickness, adjust the workpiece material, and adjust the pre-treatment method.
4. Concave holes appear in the coating?

Reasons: improper treatment, incomplete degreasing, contaminated source, incomplete degreasing and dewatering of compressed air, uneven surface of workpiece, contaminated by dust or other impurities.
Solution: Strengthen pre-treatment, ensure that the compressed air is clean, and clean the surface of the workpiece
5. Why do bubbles appear in the coating?

Reasons: The moisture is not completely dried after the surface treatment of the workpiece, the degreasing and rust removal is not thorough, the bottom volatiles are not removed, there are pores on the surface of the workpiece, and the powder coating is too thick.
Solution: Thoroughly dry the surface of the workpiece, ensure thorough degreasing and rust removal, and control the thickness of the powder coating.
6. Why is the coating uneven?

Reasons: Uneven powder spraying, too close distance between the spray gun and the workpiece, and unstable high-voltage output.
Solution: Adjust the distance and angle of the spray gun to stabilize the high-voltage output
7. Why is the impact strength and adhesion of the coating poor?

Reasons: The phosphate film is too thick, the curing temperature is too low, the time is too short, and the base metal is not cleaned.
‌Solution‌: Control the thickness of the phosphating film, adjust the curing temperature and time, and ensure that the base metal is cleanly processed.
8. Why does the coating produce pinholes?

‌Reason‌: Foreign matter in the air, too high spray gun voltage, too close distance between the spray gun and the workpiece, too thin coating, and insufficient curing of the coating.
‌Solution‌: Clear foreign matter in the air, adjust the spray gun voltage and distance, and ensure that the coating is fully cured.
9. Why does a small amount of sand appear on the surface of the coating?

‌Reason‌: Spray blockage or poor airflow, poor spray gun atomization, powder dripping in the powder spraying room, and other debris contaminating the workpiece surface.
‌Solution‌: Clean the spray system, purify the powder spraying room, and avoid debris contamination.
10. Why does the coating fall off?

‌Reason‌: The surface treatment of the workpiece is not good, the degreasing and rust removal is not thorough, the output voltage of the high-voltage electrostatic generator is insufficient, and the workpiece grounding is poor.
‌Solution‌: Strengthen the surface treatment of the workpiece, ensure thorough degreasing and rust removal, check the output voltage of the electrostatic generator, and ensure that the workpiece is well grounded.
11. Why is the powder supply uneven?

‌Reason: The powder supply pipe or powder spray pipe is blocked, the air pressure is insufficient or unstable, the air compressor is mixed with oil or water, and the powder feeder fluidization is unstable.
‌Solution: Clean the powder supply pipe and powder spray pipe, ensure the air pressure is stable, check the air compressor, and adjust the powder feeder fluidization.
12. Why is the powder flying and the adsorption poor?

‌Reason: The electrostatic generator has insufficient high voltage, the workpiece is poorly grounded, and the air pressure is too high.
‌Solution: Check the output voltage of the electrostatic generator, ensure that the workpiece is well grounded, and adjust the air pressure.
13. Why is the powder spraying amount small?

‌Reason: Insufficient air pressure, insufficient air volume, too high air pressure, water vapor and oil mixed in the air.
‌Solution: Adjust the air pressure, ensure sufficient air volume, and clean the water vapor and oil in the air.
14. Why is the powder spraying pipe blocked?

‌Cause‌: Problem with the material of the powder spraying tube, the powder adheres and hardens at the nozzle, and the air pressure for conveying powder is too low.
‌Solution‌: Replace the material of the powder spraying tube, clean the nozzle regularly, and increase the air pressure for conveying powder.

Contaet With Ketu Todays!

Quote Now

Improve performance and sustainability

Coating Production Lines

Elevator industry

Components

Electrostatic generator

Spray gun

Powder supply system

Electrical control system

Drying/curing equipment

Conveying system

Features

Environmental protection

Efficiency

Beautiful

Safety

How to choose When purchasing a powder coating line in the elevator industry, here are some important considerations that will help ensure the performance, efficiency, and final coating quality of the coating line:

Part size and shape

Coating efficiency

Coating quality

Environmental standards

Energy consumption and operating costs

Equipment reliability and maintenance

Pretreatment adaptability

Automation

Production line layout

Technical support and training

Scalability and upgrade capability

Safety standards

Return on investment

Order Process

Customization

Customization of conveying system

Capacity customization

Customization of electrostatic powder spray booths

Pre-treatment cleaning system

Customization of heating system

Customization of electrostatic powder spray guns

Customer Reviews

Are you ready to optimize your coating operation?

Leave Your Message

1. Why is the coating not shiny enough?

2. Why does the coating change color?

3. Why is the coating surface orange peel?

4. Concave holes appear in the coating?

5. Why do bubbles appear in the coating?

6. Why is the coating uneven?

7. Why is the impact strength and adhesion of the coating poor?

8. Why does the coating produce pinholes?

9. Why does a small amount of sand appear on the surface of the coating?

10. Why does the coating fall off?

11. Why is the powder supply uneven?

12. Why is the powder flying and the adsorption poor?

13. Why is the powder spraying amount small?

14. Why is the powder spraying pipe blocked?

Contaet With Ketu Todays!

Improve performance
and sustainability

How to choose When purchasing a powder coating line in the elevator industry, here are some important considerations that
will help ensure the performance, efficiency, and final coating quality of the coating line: