Delfin MTL 201 BL 1/2D
ATEX Zone 21 vacuum cleaner for combustible dust and solid particles
The Delfin MTL 201 BL 1/2D is a compact and durable ATEX-certified industrial vacuum cleaner designed for the safe collection of combustible dust in Zone 21 areas. It is equipped with a brushless motor (BL) for continuous operation where high safety, efficiency, and uptime are essential. The stainless steel AISI 304 container, antistatic filters, and integrated Dustop filter cleaning system make it ideal for pharmaceutical, chemical, and food industries where explosive dust may be present.
- Zone classification: II 1/2D Ex h tb IIIC T80°C (Int) / T95°C (Ext) Da/Db.
- Motor: brushless, single-phase 115/230 V, 1.1 kW – low noise level 74 dB(A).
- Filter: antistatic polyester M-class with Dustop cleaning + HEPA H14 final filter.
- Container: 20 L AISI 304 stainless steel with tangential inlet and integrated cyclone.
- Supplied with antistatic accessory kit TA.0527.0000 including hose, wands, and tools (D 40 mm).
Technical design
The vacuum features a tangential inlet with built-in cyclone to reduce filter load and ensure optimal airflow (215 m³/h). The main filter of 30,000 cm² is made of antistatic polyester (M-class) and cleaned mechanically by the Dustop system. The final HEPA H14 filter of 11,000 cm² is tested according to EN 1822-5 (MPPS method) with 99.995 % efficiency.
Safety and certification
- ATEX marking: II 1/2D Ex h tb IIIC T80°C (Int) / T95°C (Ext) Da/Db.
- Zone 20 inside the container and filter chamber (1D), and Zone 21 on external surfaces (2D).
- Complies with EN 17348 (collection of combustible dust), EN IEC 62784 and IEC 60335-2-69.
- Made of AISI 304 stainless steel with conductive and ESD-safe components.
Technical note
The Delfin MTL 201 BL 1/2D is designed for direct collection of combustible dust inside the container, where explosive atmospheres may occur. Zone 20 applies internally, while the exterior is certified for Zone 21. The brushless motor ensures long service life, minimal maintenance, and constant performance during continuous operation. To maintain ATEX compliance, always use antistatic grounded accessories (< 10⁶ Ω) and replace the HEPA filter at verified intervals.
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FAQ
What does II 1/2D (Da/Db) mean?
It indicates very high protection inside the vacuum (Zone 20) and enhanced protection on external surfaces (Zone 21).
Why a brushless motor?
The brushless motor provides constant performance, long service life, and spark-free operation – ideal for ATEX environments.
Can it be used in food or pharmaceutical production?
Yes – all parts in contact with dust are made of AISI 304 stainless steel and the filter media is antistatic and dust-tight.
What filter class does it have?
HEPA H14 with 99.995 % efficiency according to EN 1822-5.
What’s included in accessory kit TA.0527.0000?
3 m antistatic hose, stainless steel wands, nozzle, cone, antistatic brush, and all D40 connectors.
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Technical specifications
| Parameter | Value |
|---|---|
| ATEX marking (Int/Ext) | II 1/2D Ex h tb IIIC T80°C (Int) / T95°C (Ext) Da/Db |
| Zone classification | 20 (internal) / 21 (external) |
| Voltage / Frequency | 115/230 V – 50/60 Hz (1~) |
| Power / Current | 1.1 kW / 5 A |
| Max vacuum | 2,250 mm H₂O |
| Max airflow | 215 m³/h |
| Inlet / Hose diameter | 50 mm (tangential inlet with cyclone) |
| Container capacity | 20 L – AISI 304 stainless steel |
| Primary filter | Antistatic polyester M-class – 30,000 cm² / Ø 360 mm |
| Filter cleaning system | Dustop mechanical cleaning |
| HEPA final filter | H14 – 11,000 cm² – 99.995 % (MPPS) |
| Noise level | 74 dB(A) |
| Material | AISI 304 stainless steel / ESD-safe frame |
| Dimensions (L×W×H) | 52 × 63 × 112 cm |
| Weight | 32 kg |
| Accessories | Antistatic accessory kit TA.0527.0000 (D40 mm) |
