Editorial Technical Reference

Electrostatic Spray Gun

This page explains how Electrostatic Spray Gun is classified within Fabricated Metal Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A handheld or automated device that applies powder coating to surfaces using electrostatic charge.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Electrostatic Spray Gun

Definition
The electrostatic spray gun is a component of a powder coating system used in fabricated metal product manufacturing. It atomizes and propels dry powder particles toward a grounded workpiece. The gun imparts a high-voltage electrostatic charge to the powder particles, causing them to be attracted to and adhere to the grounded surface, ensuring efficient, uniform, and high-quality coating application with minimal overspray. The gun typically operates with a charging voltage of 0–100 kV and a charging current of 0–200 µA, with higher voltage improving transfer efficiency. Powder output is adjustable from 0 to 550 g/min, and air consumption ranges from 0 to 12 m³/h at operating pressure. The gun is designed for powder particle sizes of 10–120 µm, which is optimal for electrostatic application. Operating temperature should be 0–40°C, as above 40°C may affect powder flow. Relative humidity should not exceed 85%, as high humidity reduces charging efficiency. The gun has an ingress protection rating of IP54–IP65 (per IEC 60529), indicating dust and water resistance. Handheld models weigh between 0.5 and 1.2 kg, while cable length ranges from 5 to 10 m, with longer cables for automated systems. The supply voltage for the control unit is 24 V DC ±10%. Materials used include high-impact plastic for the body, stainless steel for the nozzle and electrodes, and ceramic for insulators. These values are reference ranges; verify model-specific specifications with the manufacturer or supplier.
Working Principle
The gun uses a high-voltage generator (typically 30–100 kV) to create a strong electrostatic field at its tip. Powder, fluidized and delivered by a feed system, is pneumatically propelled through the gun. As it passes through the electrostatic field, the powder particles acquire a charge. These charged particles are then attracted to the electrically grounded workpiece, forming a uniform, adherent layer.
Common Materials
High-impact plastic (body), Stainless steel (nozzle, electrodes), Ceramic (insulators)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Powder Output0–550 g/minAdjustable for coating thickness
Charging Voltage0–100 kVHigher voltage improves transfer efficiency
Charging Current0–200 µALimits spark risk
Air Consumption0–12 m³/hAt operating pressure
Powder Particle Size10–120 µmOptimal range for electrostatic application
Operating Temperature0–40 °CAbove 40°C may affect powder flow
Relative Humidity≤85 %High humidity reduces charging efficiency
Ingress ProtectionIP54–IP65Dust and water resistanceIEC 60529
Weight0.5–1.2 kgHandheld models lighter
Cable Length5–10 mLonger for automated systems
Supply Voltage24 ±10% V DCFor control unit

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Gun Body/Handle
    Houses internal components, provides ergonomic grip for operator control, and contains trigger mechanism.
    Material: High-impact plastic
  • High-Voltage Electrode Part
    Generates the electrostatic field to charge the powder particles as they exit the gun.
    Material: Stainless steel, Tungsten
  • Nozzle/Spray Head
    Shapes and directs the spray pattern of charged powder onto the workpiece.
    Material: Stainless steel, Ceramic
  • Trigger/Control Valve
    Activates the simultaneous flow of powder and air, and often controls the electrostatic charge.
    Material: Plastic, Metal alloy
  • Insulator Part
    Electrically isolates the high-voltage components from the gun body and operator.
    Material: Ceramic, High-grade plastic
  • High-Voltage Generator
    Produces the 30-100 kV that charges the powder at the gun tip.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Electrostatic Spray Gun.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: 30 to 100 kV (electrostatic charge)
pressure: 0.2 to 0.8 MPa (air supply), 0.05 to 0.3 MPa (powder feed)
flow rate: 50 to 500 g/min (powder output)
temperature: Ambient to 50°C (operating), -10°C to 60°C (storage)
relative humidity: <70% (operating environment)
Media Compatibility
✓ Epoxy powder coatings ✓ Polyester powder coatings ✓ Hybrid powder coatings
Unsuitable: Conductive liquid paints or solvents
Sizing Data Required
  • Target coating thickness (microns)
  • Production line speed (m/min)
  • Part surface area and geometry complexity

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Electrode Fouling/Contamination
Cause: Accumulation of paint overspray, dust, or debris on the charging electrode, which disrupts the electrostatic field and reduces transfer efficiency, often due to inadequate cleaning or operating in dirty environments.
Fluid Delivery System Clogging or Wear
Cause: Build-up of dried or cured paint within the fluid nozzle, tip, or lines, or abrasive wear from pigments, typically resulting from improper flushing, using incompatible materials, or extended operation without maintenance.
Maintenance Indicators
  • Erratic or inconsistent spray pattern (e.g., sputtering, uneven coating), indicating potential clogging, worn components, or electrostatic issues.
  • Excessive sparking, arcing, or audible cracking sounds from the gun, signaling electrical faults, grounding problems, or contamination of high-voltage components.
Engineering Tips
  • Implement a strict daily cleaning and flushing regimen using manufacturer-recommended solvents to prevent paint buildup and ensure electrode cleanliness, especially after color changes or shutdowns.
  • Use in-line filters and maintain proper fluid pressure and viscosity settings to reduce abrasive wear and clogging, and regularly inspect and replace worn nozzles, tips, and seals as part of preventive maintenance.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
CE Marking - Conformity with EU directives for safety and electromagnetic compatibility

Quoted from the published standard.

Manufacturing Precision
  • Nozzle orifice diameter: +/-0.01mm
  • Electrode concentricity: 0.05mm TIR
Quality Inspection
  • High voltage insulation resistance test
  • Spray pattern uniformity test

Manufacturers of Electrostatic Spray Gun

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

ShengTai Painting Equipment Co., Ltd.
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
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Supplier transparency
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Frequently Asked Questions

What is the maximum powder output of the gun?

The powder output is adjustable from 0 to 550 g/min, allowing control over coating thickness. The optimal setting depends on the application and workpiece geometry. Confirm the required output for your process with the supplier.

What are the recommended environmental conditions for operation?

The operating temperature should be between 0°C and 40°C, as temperatures above 40°C may affect powder flow. Relative humidity should not exceed 85%, as high humidity reduces charging efficiency. Ensure the environment is within these limits for consistent coating quality.

What ingress protection rating does the gun have?

The gun has an ingress protection rating of IP54–IP65, per IEC 60529, indicating resistance to dust and water. The specific rating depends on the model. Check the product datasheet or consult the manufacturer for the exact rating of your unit.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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