ATEX Zone 22 • Delfin • Mobile
Delfin MTL201 1/3D
Compact ATEX Zone 22-certified industrial dust vacuum for dry combustible dust. 1.1 kW side-channel blower, 2,500 mmH₂O vacuum, 180 m³/h airflow. 20 L stainless steel AISI 304 container. Cartridge-filter class M with H14 HEPA absolute filter and Dustop automatic filter cleaning as standard. EN 17348:2022. IECEx. IP55.
- ATEX II 1/3D — Zone 20 internal / Zone 22 external
- Dustop automatic filter cleaning included
- EN 17348:2022 compliance
- IECEx + IMQ third-party certified
- Maintenance-free side-channel blower
Product Description
The Delfin MTL201 1/3D is a compact mobile industrial dust vacuum certified for ATEX Zone 22 under category 1/3D. This means the machine's internal component is Zone 20-protected (the highest safety level for dust) while the external construction is classified for Zone 22.
The unit features a 1.1 kW maintenance-free side-channel blower delivering up to 2,500 mmH₂O vacuum and 180 m³/h airflow. The collection container is 20 L stainless steel AISI 304 with a Ø50 mm suction inlet. The MTL201 distinguishes itself from the MTL301 by featuring Dustop automatic filter cleaning, which ensures the filter is continuously cleaned without downtime.
| Parameter | Value |
|---|---|
| Motor Type | Side-channel blower |
| Power | 1.1 kW |
| Current | 5 A |
| Voltage | 230 V, 50/60 Hz, 1-phase |
| Airflow | 180 m³/h |
| Maximum Vacuum | 2,500 mmH₂O |
| Noise Level | 74 dB(A) |
| Capacity | 20 L |
| Weight | 32 kg |
| Dimensions | 52 × 63 × 112 cm |
| Suction Inlet | Ø50 mm |
| IP Class | IP55 |
| Filter Type | Cartridge Polyester ANT M (30,000 cm²) + H14 HEPA (11,000 cm²) |
| Filter Cleaning | Dustop automatic (compressed air) |
| ATEX Certification | II 1/3D Ex h tb IIIC T80°C (Int) / T95°C (ext) Da/Dc |
| ATEX Category | 1/3D – Zone 20 internal / Zone 22 external |
Dustop Automatic Filter Cleaning
The MTL201 is equipped with the Dustop system, a compressed air-based automatic filter cleaning mechanism. The system injects compressed air through the filter while the machine operates, removing dust depositions and keeping the filter open. This delivers several key benefits:
- Extended filter life compared to manual cleaning systems
- No scheduled downtime for filter cleaning
- Reduced maintenance costs over the machine's lifecycle
- Optimal for fine dust types where filtration is critical
- 24/7 continuous operation without service requirements
Cartridge Filter versus Star Filter
The MTL201 uses a cartridge filter (ANT M-class polyester) instead of the star filter found on the MTL301. The cartridge filter provides greater filter surface (30,000 cm²) and is particularly well-suited to applications with fine or sticky dust types. Combined with the Dustop system, it ensures optimal filter performance throughout the machine's operation.
Options and Accessories
The MTL201 can be supplied with various special configurations:
- Extra filter sets – for hot-swap operation without downtime
- Compressed air configuration – optimization of the Dustop system
- Advanced control system – with filter indicators and alarms
- Sealed bag system – for containment and dust control
- Specialized connections – according to customer requirements
Compliance Certifications
This unit complies with EU Directive 2014/34/EU for ATEX certification and has been tested according to EN 17348:2022. The MTL201 is certified for Zone 22 under category 1/3D with both IECEx and IMQ third-party verification.
Frequently Asked Questions
Category 1/3D means the machine's internal part is Zone 20-protected (highest level for dust) while the external part is classified for Zone 22. This provides maximum internal safety.
Dustop is a compressed air-based system that automatically cleans the filter while the machine runs, extending filter life and reducing maintenance costs significantly – particularly important for fine dust applications.
MTL201 has a 20 L container, cartridge filter with Dustop automatic cleaning, and is optimized for fine dust types. MTL301 has a 40 L container and star filter without Dustop. Both feature 1.1 kW motors and H14 HEPA filters.
Yes, the side-channel blower is maintenance-free and designed for continuous operation. The Dustop system ensures the filter never clogs, so the machine can run 24/7 without service stops.
IECEx is the international certification system for explosive-atmosphere-protected equipment. It facilitates approval in countries outside the EU and confirms independent third-party verification.
MTL201 is designed for dry combustible dust classified as IIIC (all dust groups including metal dust). The cartridge filter with Dustop is particularly suited to fine dust types where filtration is critical.
ATEX-certified dust collection for hazardous areas
We assist with design, installation and certification of dust collection systems for Zone 20/21/22. The MTL201 with Dustop is ideal for continuous operation with fine dust types.
