High Voltage Cascade for Electrostatic Powder Coating Guns

The high voltage cascade is one of the most critical components in an electrostatic powder coating system. It converts the low-voltage power supplied by the controller into a stable high-voltage output, enabling powder particles to become electrically charged and evenly adhere to grounded workpieces.

At Tianwang, we specialize in the development and manufacturing of powder coating gun high voltage module for manual and automatic powder coating equipment. Our products are designed for stable voltage output, excellent insulation performance, and long service life, making them suitable for demanding industrial coating environments.

With over three decades of experience in high-voltage electronic technology, we provide OEM and ODM solutions for powder coating equipment manufacturers worldwide.

Product Specification:

Parameter	Specification
Product Name	High Voltage Cascade Module
Product Type	Electrostatic Powder Coating High Voltage Cascade
Application	Electrostatic Powder Coating Gun
Input Voltage	12V / 15V / 24V DC (Customizable)
Output Voltage	80kV – 120kV (Customizable)
High Voltage Output	Negative High Voltage
Operating Principle	High Voltage Cascade Rectifier
Potting Material	Epoxy Resin (Transparent or White)
Input Cable Length	Customizable
Output Cable Length	Customizable
Output Cable Quantity	2 / 3 / 4 Wires (Optional)
Installation	Internal Installation for Powder Coating Gun
Compatible Brands	Gema, Wagner, KCI and  Other Compatible Models
Working Environment	Industrial Powder Coating Equipment
Manufacturing Service	OEM & ODM Available
Sample Service	Available

What is a High Voltage Cascade?

A High Voltage Cascade, also known as a Cascade Module or HV Cascade Module, is the high-voltage generating unit installed inside an electrostatic powder coating gun.

Its primary function is to increase the low input voltage into a stable high-voltage electrostatic field, allowing powder particles to be charged before they are sprayed onto the grounded workpiece.

The stability of the cascade directly affects:Powder charging efficiency,Transfer efficiency ,Coating thickness consistency ,Edge coverage ,Recess penetration ,Overall coating quality

How Does the powder coating gun cascade Work?

Inside the powder coating gun, the controller supplies low-voltage power to the cascade module.

The cascade then converts this input into a controlled high-voltage output, typically between 80 kV and 120 kV, creating a strong electrostatic field at the spray gun nozzle. Powder particles become negatively charged and are attracted to the grounded workpiece, resulting in uniform powder deposition and reduced material waste. This operating range aligns with the customization options described in your product documentation.

Compared with conventional coating methods, electrostatic powder coating offers:Higher transfer efficiency,Better edge coverage,Uniform coating thickness,Lower powder consumption,Environmentally friendly operation,Excellent corrosion resistance

High Voltage Cascade Key Features and Applications:

Product Feature:
In the electrostatic powder coating process, an electrostatic field is generated by a high-voltage electrostatic generator to charge powder particles, enabling them to adhere to workpieces. This process boasts prominent advantages including strong coating adhesion, excellent surface flatness, and high powder utilization rate. As the core power source, the high-voltage module’s voltage stability and the uniformity of electrostatic field distribution directly determine the final coating quality.

Product Application:
Electrostatic Powder Coating Guns, Manual Powder Coating Guns, Automatic Powder Coating Systems, Powder Coating Robots, Powder Coating Production Lines, Industrial Coating Equipment, Metal Furniture Coating, Automotive Parts Coating, Home Appliance Coating, Construction Hardware Coating, Agricultural Machinery Coating ,Aluminum Profile Coating

RFQ

Q1: What is the difference between a high voltage cascade and an ordinary transformer?

A: A high voltage cascade (HV module) integrates a high frequency transformer plus a voltage multiplier rectifier circuit, fully potted into one compact unit. It accepts low voltage input and directly outputs high voltage DC for electrostatic charging. A standard transformer only converts AC voltage and cannot produce high voltage DC alone.

Q2: Can you supply replacement cascades for Gema, Wagner and KCI spray guns?

A: Yes. Our replacement voltage multiplier module fit most mainstream manual & automatic guns from Gema, Wagner, KCI and other well known brands. Please share your original model number for accurate cross reference.

Q3: What input & output voltage options are available? A: Common input voltages include 12 V, 15 V, 24 V,110 V,220 V. Standard output ranges cover 80 kV~120 kV. Custom voltage and current specifications are supported upon request.

Q4: What customizations can I get for a high voltage diode cascade module?

A: Customizable items include input/output voltage & current, wire out quantity (2/3/4 wires), wire length, bottom terminal type (wire or pogo pin), adhesive type (white glue / transparent glue), overall dimensions and connector styles.

Q5: How long is the service life of vacuum epoxy potted cascade modules?

A: Service life heavily depends on working environment, continuous operation time and dust/humidity level. Under standard industrial working conditions, our vacuum potted cascades achieve significantly longer service life compared with non vacuum encapsulated versions.

Q6: Do you offer OEM & ODM service for powder coating cascade module?

A: Yes. We provide full OEM and ODM support for powder coating equipment manufacturers. We can develop modules according to your drawings, samples or technical specifications.

Q7: What causes poor powder coating edge coverage or weak electrostatic effect?

A: Unstable high voltage output from the cascade is one major cause. Voltage fluctuation, insulation failure or aging inside the HV module will reduce charging efficiency, resulting in poor edge coverage and recess penetration.

Contact us