Spraying robots
The explosion-proof robotic arm system for automatic paint and coating spraying—full machine explosion-proof certification is the fundamental difference from ordinary robotic arms, and it is a necessity in the automotive, furniture, and hardware industries. This page explains its system configuration, selection parameters, and frequently asked questions, along with an index of 31 models in our database.
Spraying robot: explosion-proof robotic arm + atomization process system
What is a spraying robot?
Spraying robots (customers often search for "spraying robotic arm," "painting manipulator," "painting robot") are industrial robots engaged in automatic spraying operations for paint, coatings, and adhesives. Its uniqueness lies in its dual identity:It serves both as a precision trajectory robotic arm and as an explosion-proof device— The spraying site is filled with flammable paint mist and solvent vapor, and the entire robot must pass explosion-proof certification (commonly Exp positive pressure explosion-proof / Exd D explosion-proof), which is the most fundamental difference from ordinary robotic arms.
A spraying robot system = Explosion-proof robotic arm body + atomizer (rotary cup/spray gun) + paint supply system (pump, pressure regulator, color-changing valve group) + flow and molding air control + spraying program。 For high-end configurationsHigh-speed spinning cup(Electrostatic atomization, paint utilization rate can reach over 85%), for conventional configurationAir spray gun。 The coupling control of trajectory speed, paint output, atomization pressure, and fan width is the core of spraying quality—with the same arm, the quality of the process package determines the difference in paint quality.
| Composition | Function | Key points for model selection |
|---|---|---|
| Explosion-proof body | Safe operation in explosive gas environments | The entire machine must be explosion-proof certified (Ex p/Ex d), with the explosion-proof rating matching the flash point of the coating |
| Nebulizer | Atomizes the paint into a uniform paint mist | Rotary cup (electrostatic, paint-saving, high gloss) vs. spray gun (flexible, low cost) |
| Paint supply system | Stable pressure supply for paint and rapid color change | The number of color-changing valve groups determines the efficiency of multi-color spraying |
| Flow control | Accurate measurement of paint output | The metering accuracy of gear pumps directly affects the uniformity of film thickness |
| Spraying software | Trajectory-flow-pneumatic coupling | Profiling programming, film thickness prediction, formulation management |
Key points for selecting spraying robots
| Parameters | Typical range | Project description |
|---|---|---|
| Load | 2–15kg (spinning cup); 5–50kg (multi-gun/rubber) | Load = atomizer + pipeline weight, and the rotary cup also counts the high-speed rotating dynamic load |
| Armspan | 1000–3000mm | Automotive interior spray requires a long arm to penetrate deep into the car chamber; External spray combined with walking rails can shorten the arm span |
| Explosion-proof certification | Ex p II BT4 is common | Select explosion-proof type and temperature groups based on paint flash point and spraying zone |
| Hollow wrist threading | Essential | Paint delivery pipes, air pipes, and cables have built-in wiring to prevent tangling and paint mist corrosion |
| Protection and cleaning | Protective clothing / automatic cleaning | Robots wear protective suits to prevent paint buildup; The automatic cleaning station for atomizers extends its service life |
| External shaft | Ground rails, flipping platforms, door opening mechanisms | Complete vehicle spraying comes standard with ground rail + flip, allowing workpiece rotation and less arm movement |
Robotic solutions for paint film quality issues
Hanging in exile: Film thickness too thick or viscosity is low→ Reduce paint output, increase trajectory speed, and control viscosity temperature;Orange peel: Insufficient atomization or leveling error → Increase atomization pressure/cup speed, adjust diluent;Granular impurities: Environmental or paint contamination → Paint supply filtration, spray booth cleanliness management, regular cleaning of the rotary cup;Color difference: Residual color change or parameter drift → Color change program optimization, closed-loop film thickness. The core value of robotic spraying is:Film thickness uniformity and batch consistency, turning the master's feel into replicable parameters.
The eight major business areas of the coating line are covered
What can we do for you?
Applied technology services: Spray workstation solution, profile programming, cup/spray gun selection, paint supply system integration — see detailsSpraying applications。
New and second-hand machine sales: ABB IRB 5000/5500 series, FANUC P series (Paint), Yaskawa MOTOMAN-MPX, Kawasaki spray dedicated series, and other explosion-proof spraying models, second-hand with explosion-proof certification verification.
Maintenance and repair: High frequency of faults during spraying conditions—inspection and maintenance of atomizer bearings, explosion-proof positive pressure system leaks, paint pipe blockages, and paint stain cleaning on the main body.
Upgrade and renovation: Upgraded old spray line controller, added a closed-loop film thickness detection, renovated color change system, and adapted water-based paint processes.
Frequently Asked Questions
Can ordinary robotic arms be used for spraying?
Strongly not recommended; in most cases, violations are necessary. The spraying area is an explosive hazard zone (paint mist + solvent vapor), where friction and static electricity from ordinary robotic arm motors and reducers can all become ignition sources. A fully explosion-proof certified spraying robot must be used, and the explosion-proof rating must match the coating used. Water-based paint can reduce the requirement but cannot completely eliminate explosion-proof requirements.
Is a spraying robot a robotic arm?
Yes—six-axis robotic arm form. Customers searching for "spraying robotic arm" and "painting manipulator" are exactly what they are looking for. Its uniqueness lies in its explosion-proof design and spraying process package, structurally still using the standard six-axis arm.
How to choose between a rotary cup and a spray gun?
Depends on output and paint requirements: large batches, high-gloss topcoats (for automotive and home appliance exterior parts) → electrostatic rotary cups (high paint utilization, fine atomization); Small batches, multiple varieties, repair and cavity → air spray gun (fast and flexible color change). In terms of budget, the rotary cup system is much more expensive, so when the amount is insufficient, the spray gun is more cost-effective.
What special precautions should be taken for second-hand spraying robots?
Three Special Projects: (1)Explosion-proof integrity— The positive pressure system, seals, and certification nameplate must be complete; any damage to the explosion-proof surface is vetoed with a single vote; ②Lacquer stains corroded and corroded— For long-term spraying of the body, paint scale in joint gaps can erode seals; check whether the reducer has absorbed paint; ③Nebulizer status— The rotary cup bearing and electrode are easily worn high-value parts and are tested and priced separately. All second-hand sprayers we sell come with explosion-proof special verification reports.
Spraying robots in our inventory (31 models)
Browse by brand
Below are representative models in this functional category in our database (matched by process label, cross-structural form). Click to view specifications, technical explanations, and maintenance points. For the complete model list, please see each brand's page.
FANUC (11 models)
ABB (6 models)
Kawasaki (9 models)
EFORT (5 models)
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