ATEX Zone 22 • Delfin • Mobile
Delfin MTL301 1/3D
Compact ATEX Zone 22 certified industrial vacuum for dry combustible dust. 1.1 kW side channel blower delivering 2,500 mmH₂O vacuum and 180 m³/h airflow. 40 L stainless steel AISI 304 container. Class M star filter with H14 HEPA absolute filter as standard. EN 17348:2022 compliant. IECEx certified. IP55.
- ATEX II 1/3D — Zone 20 internal / Zone 22 external
- EN 17348:2022 compliant
- IECEx + IMQ third-party certified
- H14 HEPA absolute filter as standard
- Maintenance-free side channel blower
Product Description
The Delfin MTL301 1/3D is a compact mobile industrial vacuum certified for ATEX Zone 22 under category 1/3D. This means the internal part of the machine carries Zone 20 protection (the highest safety level for dust), while the external construction is rated for Zone 22 environments.
Powered by a 1.1 kW maintenance-free side channel blower, it delivers up to 2,500 mmH₂O vacuum and 180 m³/h airflow. The collection container holds 40 L and is made from stainless steel AISI 304 with a Ø50 mm inlet.
| Parameter | Value |
|---|---|
| Motor type | Side channel blower |
| Power | 1.1 kW |
| Voltage | 230 V, 50/60 Hz, single phase |
| Max airflow | 180 m³/h |
| Max vacuum | 2,500 mmH₂O |
| Inlet diameter | Ø50 mm |
| Collection container | 40 L, AISI 304 |
| Pre-filter | Star filter, Polyester ANT M (IEC 60335-2-69) |
| HEPA filter | H14 standard (99.995 % at MPPS) |
| Weight | 26 kg |
| IP rating | IP55 |
| ATEX marking | 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 |
Options
The MTL301 1/3D is available with the following optional equipment:
- Spare filter set — to reduce downtime during filter replacement
- Antistatic accessory kit — hose and tubes in antistatic design
- Specialised nozzles — for specific applications
- Extended warranty programme — contact us for details
Compliance
The MTL301 1/3D meets ATEX Directive 2014/34/EU and is tested in accordance with EN 17348:2022 for dry type dust collectors in explosive atmospheres. IECEx certification ensures international recognition.
Frequently Asked Questions
Category 1/3D means the internal part of the machine has Zone 20 protection (highest dust safety level) while the external construction is rated for Zone 22. This provides maximum internal safety.
The MTL301 features a 40 L collection container with star filter, while the MTL201 has a 20 L container with cartridge filter and Dustop filter cleaning system. Both share the same 1.1 kW motor and H14 HEPA filter.
EN 17348:2022 is the harmonised standard for dry type dust collectors in ATEX environments. It ensures the machine meets all safety requirements for use in explosive atmospheres.
Yes, the side channel blower is maintenance-free and designed for continuous operation without scheduled service stops.
IECEx is the international certification system for explosion-protected equipment. It facilitates approval in countries outside the EU and confirms independent third-party verification.
The MTL301 is rated for dry combustible dust classified as IIIC (all dust groups including metal dust). The H14 HEPA filter ensures 99.995 % particle retention.
ATEX certified dust collection for hazardous areas
We advise on design, installation and certification of dust collection systems for Zone 20/21/22. The MTL301 1/3D is ideal for compact applications requiring maximum internal safety.
