Delfin MTL301 1/2D ATEX Industrial Vacuum
ATEX Zone 21 Industrial Vacuum for Combustible Dust
The Delfin MTL301 1/2D ATEX Industrial Vacuum Unit is a compact, explosion-proof vacuum cleaner engineered for the safe removal of combustible and fine dust in classified hazardous areas. Certified for ATEX Zone 21 external environments, with internal Zone 20 certification within the vacuum itself for the safe containment of collected combustible dust, this model is designed for facilities where explosive dust atmospheres may occur occasionally during normal operation.
Built to combine regulatory compliance, high filtration performance, and operational flexibility, the MTL301 1/2D is an ideal solution for maintenance teams and production environments requiring safe, portable dust extraction.
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What This Machine Does and Who It’s For
The MTL301 1/2D is specifically designed for the safe collection of dry, fine, and potentially explosive dust in environments where ignition control is critical.
Typical Applications
- Cleaning around processing equipment
- Removal of fine powders from floors and structures
- Maintenance cleaning in ATEX-classified production areas
- Dust control in packaging and material handling zones
- Extraction of residual combustible dust during servicing
Industries Served
- Food manufacturing and milling
- Pharmaceutical production
- Chemical processing
- Metal fabrication and surface finishing
- Additive manufacturing
- Woodworking and panel processing
- Bulk powder handling facilities
If your operation involves airborne dust that presents an explosion risk, this ATEX-certified industrial vacuum ensures safe and compliant removal.
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Key Technical Specifications Explained (In Plain English)
ATEX Zone 21 Certification
- Zone 21: Areas where explosive dust clouds are likely during normal operations.
In addition, the vacuum is internally certified for ATEX Zone 20, meaning the inside of the collection chamber is certified to safely contain combustible dust that may be continuously present during operation. This provides an additional level of protection while maintaining Zone 21 certification for external use.
This certification ensures the vacuum is engineered to prevent ignition in these hazardous environments, making it suitable for medium-risk external ATEX zones.
Two-Stage Filtration System (Class M + HEPA 99.995%)
The filtration system consists of:
- An antistatic Class M primary filter to capture the majority of fine particles.
- A HEPA absolute filter (99.995% efficiency) to prevent microscopic dust from re-entering the workspace.
This ensures high air purity, protects workers, and supports compliance with health and safety regulations.
Bypass Motor – Designed for Intermittent Use
The MTL301 1/2D is equipped with a bypass motor suited to:
- Scheduled maintenance
- Equipment cleaning
- Non-continuous housekeeping
It is not intended for 24/7 process extraction but is ideal as a portable hazardous-area cleaning solution.
Stainless Steel AISI 304 Collection Tank
The robust collection tank offers:
- Corrosion resistance
- Easy cleaning and sanitation
- Long service life in industrial settings
This is particularly beneficial in hygiene-sensitive sectors such as food and pharmaceutical manufacturing.
Anti-Static Components & Grounding System
To mitigate electrostatic discharge — a common ignition source in combustible dust environments — the unit includes integrated grounding and anti-static components.
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Why Choose the MTL301 1/2D Over Other ATEX Vacuums?
Many explosion-proof industrial vacuum cleaners are either oversized, overly complex, or designed for continuous heavy-duty extraction. The MTL301 1/2D occupies a critical niche:
- Compact and manoeuvrable
- Lower investment cost compared to turbine-driven ATEX systems
- Faster deployment across multiple work areas
- Easier filter access and servicing
- Ideal for maintenance and support teams
If your requirement is a portable ATEX vacuum for Zone 21 environments, rather than a fixed centralised system, this model delivers practical performance without unnecessary complexity, while also providing the added reassurance of internal Zone 20 certification within the collection chamber.
It provides certified safety, HEPA-level filtration, and industrial durability in a format suited to real-world production environments.
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Built for Operational Efficiency
The unit is supplied with a complete accessory kit, enabling immediate use across various cleaning applications. Its compact footprint allows operators to work efficiently in tight production areas without sacrificing compliance or filtration quality.
For organisations searching for ATEX-certified industrial vacuums for sale, the Delfin MTL301 1/2D offers a balanced combination of:
- Explosion protection
- Filtration efficiency
- Portability
- Industrial-grade construction
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Frequently Asked Questions (FAQs)
What is the difference between 1/2D and 1/3D ATEX models?
The 1/2D model is certified for Zone external environments, while 1/3D models are certified for Zone 22 environments. The correct choice depends on your site’s ATEX classification. Both incorporates internal Zone 20 certification within the collection chamber.
Is this vacuum suitable for combustible dust?
Yes. It is specifically designed for safe removal of combustible and fine dust in classified hazardous areas.
Can it operate continuously?
No. The bypass motor is designed for intermittent use. For continuous operation, a turbine-powered ATEX vacuum would be more appropriate.
Does it include HEPA filtration?
Yes. It includes a HEPA absolute filter rated at 99.995% efficiency for fine particulate control.
Is it compliant with industrial safety standards?
Yes. It is fully ATEX-certified for Zone 21 hazardous dust environments, , with additional internal Zone 20 certification inside the collection chamber for enhanced protection during combustible dust collection.
Is it portable?
Yes. The compact design and mobility features make it suitable for maintenance teams operating across multiple areas.
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Summary
The Delfin MTL301 1/2D ATEX Industrial Vacuum Unit is a compact, explosion-proof vacuum cleaner engineered for hazardous dust environments classified as Zone 21. Combining HEPA-level filtration, anti-static protection, and durable stainless steel construction, it provides a safe and practical solution for combustible dust removal in industrial settings.
For facilities requiring compliant, portable, and high-performance dust extraction in ATEX-rated environments, this model delivers operational reliability with certified peace of mind.
To view more of our ATEX Zone 21 Vacuums: Delfin DM2 1/2D, Delfin MTL451 1/2D & Delfin MTL201 1/2D













