Dürr · Rotary atomization
EcoBell2 SL rotary atomizers
Explore the documented EcoBell2 SL direct-charge and external-charge variants for machine and robotic paint application. Compare the original SL specifications and manuals before selecting a configuration.

Where EcoBell2 SL fits
The existing manufacturer charts describe machine and robot applications, quick-change technology, bell-disk purging and a dual shaping-air system. Selection starts with the exact SL variant, coating material and installed application system.
Benefits
Shared benefits
- High paint flow at high coating quality
- Suitable for machines and robots
- Quick-change technology
- Optimised bell-disk purging
- Dual shaping-air system
- Automatic paint-tube centring
- Modular design for economical maintenance
- Tested to Dürr quality standards
Direct charge
- Transfer efficiency of up to 95% possible
External charge
- Transfer efficiency of up to 90% possible
The “up to 95%” figure belongs to the direct-charge benefit record; “up to 90%” belongs to external charge. These are possible variant-specific figures. Actual performance depends on coating material, geometry, application conditions and installation.
Technical data
All variants are included below. Scroll the table horizontally on a smaller screen.
| Specification | Direct Charge | External Charge | Direct Charge 1K m.RF | External Charge 1K m.RF |
|---|---|---|---|---|
| General information | ||||
| Weight | 4,500 g | 6,500 g | 4,500 g | 6,500 g |
| Dimensions | Ø165 × 229 mm | Ø244 × 283 mm | Ø165 × 229 mm | Ø244 × 283 mm |
| Ex zone | Ex II 2G T4 / Ex II 3G T4 | Ex II 2G T4 / Ex II 3G T4 | Ex II 2G T4 / Ex II 3G T4 | Ex II 2G T4 / Ex II 3G T4 |
| Performance and operation | ||||
| Spray distance | 200–240 mm | 200–240 mm | 200–240 mm | 200–240 mm |
| Speed range / maximum | 8,000–70,000 rpm | 8,000–70,000 rpm | 8,000–70,000 rpm | 8,000–70,000 rpm |
| Typical speed | 15,000–55,000 rpm | 15,000–55,000 rpm | 15,000–55,000 rpm | 15,000–55,000 rpm |
| Painting velocity | 0.2–0.6 m/s | 0.2–0.6 m/s | 0.2–0.6 m/s | 0.2–0.6 m/s |
| Spray width (50%) | 80–270 mm | 80–270 mm | 80–270 mm | Not specified |
| Air and flow rate | ||||
| Air consumption | Turbine: 100–730 Nl/min; bearing: 60 Nl/min | Turbine: 100–730 Nl/min; bearing: 60 Nl/min | Turbine: 100–730 Nl/min; bearing: 60 Nl/min | Turbine: 100–730 Nl/min; bearing: 60 Nl/min |
| Maximum shaping air 1 / 2 | 520 / 480 Nl/min | 450 / 440 Nl/min | Not specified | Not specified |
| Typical flow rate | 80–350 ml/min | 80–350 ml/min | 80–350 ml/min | 80–350 ml/min |
| Maximum media flow | 700 ml/min | 700 ml/min | 700 ml/min | 700 ml/min |
| Voltage and media | ||||
| Voltage | 80 kV | 80 kV | 80 kV | 80 kV |
| Current range | 5–50 µA | 400 µA | 5–50 µA | Not specified |
| Operating temperature | 20–26 °C (68–79 °F) | 20–26 °C (68–79 °F) | 20–26 °C (68–79 °F) | 20–26 °C (68–79 °F) |
| Viscosity | 50–180 mPa·s | 50–180 mPa·s | 50–180 mPa·s | 50–180 mPa·s |
Values and variant designations are reproduced from the existing source records. Blank or dashed source entries are shown as “Not specified”. Confirm the exact configuration against its applicable manufacturer manual.
Manuals and order information
Order information
Open document ↗EcoBell2 SL-DC manual
Open document ↗EcoBell2 SL-EC manual
Open document ↗Source charts and references
What to prepare for an enquiry
- Exact atomizer designation and the current machine or robot installation.
- Coating material and the required application and finish conditions.
- Existing paint supply, high-voltage system, controls and connections.
- Available part numbers, photographs and the applicable manual.