High Voltage Cascade for Electrostatic Spray Guns

A high voltage cascade is the high-voltage generation component used in many electrostatic spray guns. It converts a low-voltage DC input into a high-voltage, low-current output for charging powder or liquid coating particles during the spraying process.

The cascade works together with the spray gun, charging electrode, nozzle and control circuit. Its electrical performance can affect charging stability, powder distribution and the consistency of the coating process. For a replacement project or a new spray gun design, the output voltage, input voltage, power, dimensions and connection method should be matched to the complete system.

Jiangsu Tianwang Solar Technology Co., Ltd. has been developing and manufacturing high-voltage electronic products since 1990. Our high voltage cascade solutions are designed for electrostatic powder coating equipment, electrostatic spray guns and other industrial electrostatic applications. Standard configurations and customized OEM solutions are available.

What Is a High Voltage Cascade?

A high voltage cascade is a compact high-voltage module that converts low-voltage electrical power into the high-voltage output required by an electrostatic spray gun.

In a powder coating gun, the high-voltage output is connected to the charging system. As powder passes through the charging area, the particles become electrically charged. The charged particles are then attracted toward the grounded workpiece, helping the powder adhere to the surface during spraying.

The cascade is only one part of the complete electrostatic coating system. Spray gun design, powder characteristics, nozzle geometry, grounding, airflow and the distance between the gun and workpiece can also affect coating performance.

High Voltage Cascade for Powder Coating Guns

Our high voltage cascade is developed for electrostatic powder coating applications where stable high-voltage output is required.

Powder coating is commonly used on metal products such as doors and windows, cabinets, appliances, automotive components, hardware and other manufactured parts. The electrical characteristics of the spray gun need to be matched to the coating material and application conditions.

A properly configured cascade can provide the high-voltage output required to charge the powder and maintain stable operation of the spray gun.

For different workpiece shapes and coating requirements, nozzle design and electrostatic charging conditions may need to be adjusted together. Therefore, the cascade should be selected according to the complete spray gun system rather than output voltage alone.

Key Features of Our High Voltage Cascade

Stable High-Voltage Output

Consistent high-voltage output helps maintain a stable charging condition during electrostatic spraying.

Our cascade is designed for continuous high-voltage generation within its specified operating conditions. The output can be configured according to the requirements of the spray gun and coating system.

Compact High-Voltage Module

The cascade integrates the high-voltage generating components into a compact module, making it suitable for installation inside electrostatic spray equipment.

The physical dimensions and connection configuration can also be customized for OEM projects where installation space is limited.

Epoxy Encapsulation

Epoxy encapsulation provides electrical insulation and helps protect internal components from dust, moisture and the working conditions commonly found around industrial coating equipment.

The material and encapsulation structure can be selected according to the requirements of the application.

High-Temperature and Corrosion Resistance

The existing powder coating gun cascade is designed with materials and construction suitable for industrial coating environments.

Its resistance to temperature, moisture and chemical exposure depends on the selected materials and actual operating conditions.

OEM and Replacement Customization

Not every electrostatic spray gun uses the same cascade. Different systems may require different voltage, current, dimensions and connection configurations.

Tianwang can customize the cascade according to:

Input voltage

Output voltage

Rated power

Module dimensions

Wire length

Connection method

Electrical characteristics

Installation requirements

Customers can provide an existing cascade, technical drawing, spray gun model or electrical specification for evaluation.

Technical Specifications

Note: Electrical parameters may be customized according to the spray gun and coating system requirements. Please contact Tianwang to confirm the configuration before ordering.

How Does an Electrostatic Spray Gun Cascade Work?

Learn more about how a high voltage cascade works.

The operating process can be understood in four basic stages:

1. DC power input

The spray gun supplies low-voltage DC power to the cascade.

2. High-voltage conversion

The cascade converts the input power into a high-voltage output suitable for the electrostatic charging system.

3. Particle charging

The high-voltage output creates the electrical conditions required to charge the powder particles as they pass through the spray gun.

4. Electrostatic attraction

The charged particles are attracted toward the grounded workpiece and form the coating layer on its surface.

This process helps powder reach and adhere to the workpiece during electrostatic spraying. The actual coating result depends on the complete equipment setup and operating parameters.

How to Choose a High Voltage Cascade

Choosing a replacement cascade requires more than checking the output voltage. The following information should be confirmed before selecting a module.

1. Input Voltage

Check the DC voltage supplied by the original spray gun or control circuit. Our current powder coating cascade supports 12V and 24V input configurations, with customized options available.

2. Output Voltage

Confirm the required high-voltage range of the spray gun and charging electrode. The current powder coating gun model is specified for 80–120 kV output.

3. Rated Power and Electrical Characteristics

Power and frequency should be considered together with the spray gun's control circuit and load conditions. A replacement cascade should be matched to the original electrical design.

4. Physical Dimensions

The module must fit the available space inside the spray gun or coating equipment. Installation position, mounting method and wire routing should also be considered.

5. Connection Method

Check the number, position and definition of the input and output wires. Two cascade modules with similar voltage ratings may have different connection configurations.

6. Application

Determine whether the module is intended for powder coating, liquid electrostatic painting or another electrostatic application. Different applications can require different electrical configurations.

Providing the original module or a technical drawing is the easiest way to evaluate a replacement solution.

OEM High Voltage Cascade Development

Tianwang provides customized high voltage cascade solutions for spray gun manufacturers, coating equipment companies and industrial system integrators.

For new product development, our engineers can work from your electrical specifications, mechanical drawings or prototype requirements.

For replacement applications, we can evaluate an existing cascade based on its:

Product dimensions

Input voltage

Output voltage

Power requirements

Frequency

Wire configuration

Connector or pin definition

Installation method

The objective is to develop a cascade that is electrically and mechanically compatible with the target equipment.

High Voltage Cascade Applications

The cascade can be used in:

Electrostatic Powder Coating Guns

For charging powder particles during industrial powder coating processes.

Automatic Electrostatic Spray Equipment

For automated coating equipment where the cascade is integrated into the spray system.

Industrial Coating Systems

For electrostatic coating applications involving metal products and other suitable workpieces.

Spray Gun OEM Manufacturing

For manufacturers developing new electrostatic spray guns or upgrading existing models.

Replacement and Aftermarket Applications

For maintenance companies and equipment owners looking for a compatible replacement high-voltage module.

Why Choose Tianwang?

Jiangsu Tianwang Solar Technology Co., Ltd. was established in 1990 and specializes in the development and manufacturing of high-voltage electronic products.

Our product range includes high-voltage generators, electrostatic modules, ignition transformers and other high-voltage electronic components.

For electrostatic coating customers, we provide both standard products and customized development services. Samples can be evaluated before volume production, allowing customers to verify electrical and mechanical compatibility with their equipment.

Our factory and engineering team support the complete process from technical communication and sample development to production and quality inspection.

Frequently Asked Questions

What is a high voltage cascade used for?

A high voltage cascade converts low-voltage DC power into a high-voltage output used by an electrostatic spray gun to charge coating particles. It is commonly used in electrostatic powder coating equipment.

What voltage does a powder coating gun cascade produce?

The current Tianwang high voltage cascade for powder coating guns is specified for an output of 80–120 kV. Different spray gun designs may require different electrical parameters, so the exact specification should be confirmed before replacement.

What is the input voltage of the cascade?

The current model supports 12V or 24V DC input. Customized input configurations can also be discussed for OEM projects.

Can this high voltage cascade be used as a replacement?

A replacement is possible when the electrical and mechanical characteristics are compatible. The input voltage, output voltage, power, frequency, dimensions and wire configuration should all be checked.

Can you customize a high voltage cascade?

Yes. Tianwang supports customization of electrical parameters, dimensions and connection configurations according to the customer's spray gun or coating equipment requirements.

Can you develop a cascade from our existing sample?

Yes. An existing cascade, product drawing, electrical specification or spray gun model can be used as a starting point for a compatibility evaluation and customized development.

Can the cascade be used for liquid electrostatic painting?

The suitability depends on the electrical requirements of the liquid electrostatic spray system. The required voltage, current, insulation and control characteristics should be evaluated before selecting a module.

Can we order samples before placing a bulk order?

Yes. Sample testing can be arranged so that customers can evaluate the module's electrical and mechanical compatibility before moving to mass production.

Request a High Voltage Cascade Sample or Quote

Looking for a high voltage cascade for an electrostatic spray gun, a replacement module or a customized OEM solution?

Send us your existing cascade information, spray gun model, technical drawing or electrical requirements. Useful information includes:

Input voltage

Required output voltage

Rated power

Frequency

Module dimensions

Wire or connector configuration

Application and spray gun model

Our engineering team can review the requirements and recommend a suitable configuration.

Contact Jiangsu Tianwang Solar Technology Co., Ltd. for a high voltage cascade sample, replacement solution or OEM quotation.

Request a Quote

Send your cascade model, dimensions or electrical specifications for a compatibility assessment.