HDA-605 Electrostatic Rotary Bell Atomizer
• Up to 70–90% paint utilization — significantly higher than conventional air spray guns (typically ~20%), cutting paint consumption by up to ~50% in many operations. • Ultra-fine, uniform atomization — the high-speed rotating metal cup (30,000–60,000 RPM typical range) breaks paint into a fine, even mist for a consistent, high-quality film.
• Strong electrostatic adsorption — the rotary cup is charged with negative high voltage (typically 60–100 kV), so charged paint particles are attracted evenly onto the workpiece surface, reducing overspray and improving edge coverage.
• Stable, repeatable coating — key parameters (cup speed, electrostatic voltage, paint flow rate, forming air pressure and gun distance) directly control film thickness, atomization fineness and application rate, making results easy to tune and reproduce.
• Built for automation — designed for integration into robotic and conveyorized coating lines for around-the-clock production.
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The HDA-605 high-speed electrostatic rotary cup atomizer, launched by HONGDA Spray Electromechanical Co., Ltd., is a professional electrostatic spraying device designed for automated coating production lines. Built on the combined technology of high-speed rotary atomization and electrostatic adsorption, it is ideally suited for automated spraying in the robotics, motorcycle, plastics, wood, hardware, furniture, and accessories industries. How It Works Paint is fed into a high-speed rotating metal cup and atomized into a fine mist by centrifugal force. At the same time, the rotary cup is connected to a negative high voltage (typically 60–100 kV). The charged paint mist particles are uniformly dispersed and electrostatically adsorbed onto the workpiece surface under the combined action of vortex air flow and electrostatic attraction, forming a uniform, high-adhesion coating film with minimal overspray. Key Parameters Core parameters include rotary cup speed (typically 30,000–60,000 RPM, with some models up to 70,000 RPM), electrostatic voltage, paint flow rate, forming air pressure, and gun distance. These factors directly determine coating film thickness, atomization fineness, and paint utilization rate (transfer efficiency). High Paint Utilization The transfer efficiency of electrostatic rotary cup spray guns is significantly higher than that of traditional spray guns:
| Spraying method | Typical transfer efficiency |
| Electrostatic rotary cup | 70%–90% |
| Electrostatic spray gun | 50%–60% |
| Electrostatic air spray gun | 45%–55% |
| Traditional air spray gun | ~20% |
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No. |
Item |
Specifications |
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1 |
summary |
Product name |
HDA electrostatic rotating bell spray gun |
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Model |
HDA605 |
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application |
Fixed spraying, reciprocating machine spraying, robot spraying |
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2 |
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dimensions |
P6/P7/P8 |
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weight |
Y-shaped: about 2 5kg R-type hollow type: about 3 5kg straight tube type: about 2.6kg Excluding cables, pipes, and external brackets |
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3
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Adapted paint, cleaning solvent |
paint |
Liquid paint(spray with resistance values below 10MQcm cannot be applied by electrostatic spraying.) |
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Waiter base paint(spraying insulation isolation device is required for spray with resistance value less than 1MQcm.) |
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cleaning solvent |
Cleaning solvents with a resistance value of more than 20MQcm |
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4 |
environmental conditions |
temperature |
5℃~40℃ |
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humidity |
40%～80% |
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Spray room wind speed |
0.3m/s~0.4m/s |
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5 |
Air conditions |
Air bearing |
100L/min(ANR) ※0.5MPa normal pressure：0.5MPa above |
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Air turbine |
500L/min(ANR)(250L/min(ANR) ※40.000rpm unload) |
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Air forming |
Forming air sprayed in the shape：750L/min(ANR)below |
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Max air pressure |
Air hose：0.7MPa Paint hose：1.0MPa |
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Air Supply quality |
Solid particle size：0.1μm less Dew point under pressure :-20℃ Remaining paint amount :0.01mg/m3 |
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6 |
Rotating speed |
φ65mm bell cup ：45.000rpm (under) φ30mm bell cup：65.000rpm （under) |
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7 |
Electrostatic |
voltage |
Max. -80kV |
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Max. 120μA ※Please use it under the condition that the monitor current value is below 90μA |
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8 |
Spraying discharge volume |
500mL/min(Viscosity 20sec/FC#4 under) ※This value is only a rough standard, and if the conditions exceed this range, you need to pass the coating test. Confirm the quality of painting |
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Process flow
1.Raw Material
2.SMT
3.Testing
4.Welding
5.Assembly
6.Aging Test
7.Testing
8.Packing
9.Warehouse
