Rotary Electrostatic — High-Speed Automatic
Finest droplet distribution. Premium surface quality.
A high-speed rotary electrostatic atomiser delivering ultra-fine, extremely uniform droplet distribution for premium finish quality on automotive body panels and high-specification industrial components — the highest standard available in liquid coating technology.
Why this product
Conventional spray guns can't deliver automotive-grade uniformity.
Conventional air spray and airless guns produce droplet distributions with significant size variation — visible in the final finish as texture, orange peel, or inconsistent gloss. Rotary bell atomisation spins paint into an extremely fine, uniform mist via centrifugal force — delivering the most consistent droplet distribution achievable and the finest surface finish in production liquid coating.
- Rotary bell cup generates the finest, most uniform droplet distribution available in production coating
- Electrostatic charging maximises transfer efficiency — charged mist wraps around the part with minimal overspray
- Premium finish quality — standard equipment for automotive OEM body panel painting
- High transfer efficiency: significantly less paint consumption vs conventional spray for same film build
- Designed for automated production lines with consistent high-volume output requirements
- Supplied by OptiFinish as confirmed Dürr distributor
How it works
Spin, atomise, adhere
Bell cup spinning at high speed
Paint is fed to the centre of a rotating bell cup spinning at high speed (typically 15,000–70,000 RPM depending on viscosity and required droplet size). Centrifugal force spreads the paint in a thin film to the cup edge.
Technical data
Full specifications
Where it's used
Applications & use cases
- Automotive body panel painting — OEM and tier 1 suppliers
- High-specification industrial component coating
- Automatic production lines requiring premium finish quality
- Any application where surface quality is the primary criterion
- High-volume operations with paint material cost as a key KPI
Works with
Compatibility & integration
Ready to specify?
Premium automatic liquid coating. Bell atomiser grade finish.
Talk to OptiFinish about bell atomiser integration into your production line — we'll assess your paint system, production volume, and finish requirement.