Depureco PUMA 30 S DEX 1/3D
- Steelworks and foundries in Zone 22
- Powder metallurgy and heavy metal processing
- High airflow or high vacuum for long hose runs
- Central system operation with multiple simultaneous 130 mm collection points
- Extremely dust-loaded environments with three-shift operation
- ATEX Directive 2014/34/EU -- II 1/3D Ex htc IIIC T140°C Da/Dc
- EN 17348:2022 (harmonized March 2023)
- IEC 60335-2-69 (industrial vacuums)
Depureco PUMA 30 S DEX 1/3D
The Depureco PUMA 30 S DEX 1/3D is the PUMA HD heavy-duty chassis with 130 mm inlet and 1/3D certification for the heaviest industrial dust collection in Zone 22. Three-phase 18.5 kW side-channel blower, 175 L container and 1180 m3/h airflow at 380 mbar vacuum. Cartridge filter 180,000 cm2 with integrated automatic reverse jet cleaning. TUEV-certified electrical panel and remote control included. ATEX II 1/3D Ex htc IIIC T140°C Da/Dc. Built for steelworks, foundries, powder metallurgy and other extreme industrial applications in Zone 22.
Applications
- Steelworks and foundries in Zone 22
- Powder metallurgy and heavy metal processing
- High airflow or high vacuum for long hose runs
- Central system operation with multiple simultaneous 130 mm collection points
- Extremely dust-loaded environments with three-shift operation
Technical specifications
| ATEX marking | II 1/3D Ex htc IIIC T140°C Da/Dc |
|---|---|
| Internal / external zone | 20 / 22 |
| Motor type | Sidekanalblaeser 3-fase (18.5 kW), TUEV-certificeret el-panel + remote control |
| Duty cycle | Continuous |
| Airflow | 1180 m³/h |
| Vacuum | 380 mbar (3875 mmH₂O) |
| Container | 175 L |
| Sound pressure | 78 dB(A) |
| Filter class | M class |
| Filter type | Cartridge antistatisk polyester klasse M, 180.000 cm2, integreret reverse jet cleaning (automatisk) |
| Primary filter | Cartridge antistatisk polyester klasse M, 180.000 cm2 |
| Cleaning system | Automatisk reverse jet cleaning (SP) |
| Collection system | Detachable container |
| Material | Lakeret staalkonstruktion heavy-duty, AISI 304 stoevbeholder |
| IP class | IP65 |
| Power | 18.5 kW |
| Voltage | 400 V / 50-60 Hz |
| Inlet | Ø 130 mm |
| Dimensions (L × W × H) | 1050 x 1950 x 2300 mm |
| Weight | 620 kg |
Questions and answers
Why is the PUMA 30 available in both P and S variants?
P stands for flow-prioritised, S for suction-prioritised. The PUMA 30 S DEX 1/3D delivers highest vacuum (380 mbar) but moderate airflow (1180 m3/h). The other variant (PUMA 30 P DEX 1/3D) swaps these parameters -- same motor size, but different compressor setup. Flow-prioritised is for large airflows (e.g. extraction hoods and large enclosures); suction-prioritised is for long hose runs and fine sticky dust requiring high vacuum.
What is the difference between PUMA HD and PUMA DEX?
PUMA HD is the heavy-duty variant: 130 mm inlet (vs PUMA DEX 100 mm), cartridge filter 180,000 cm2 (vs star filter 45,000 cm2), larger chassis (1050 x 1950 mm), 22 kW motor (vs 7.5-18.5 kW). Built for steelworks and foundries. Automatic reverse jet cleaning included as standard (no separate SP variant).
Can the PUMA 30 S DEX 1/3D be used for steel chips and grinding dust?
Yes. Antistatic polyester M class filter plus grounding handles soft-metal chips and dust. The AISI 304 container is corrosion-resistant. Note: very large steel-chip fractions should go through a pre-separator before PUMA HD -- chips can damage the cartridge filter by direct intake. Contact us for pre-separator manifold design if you have mixed chips/dust.
What is the footprint of the PUMA 30 S DEX 1/3D, and can it be installed indoors?
Dimensions 1050 x 1950 x 2300 mm, weight 620 kg. Requires at least 3 x 3 m of service space around the machine. The IP65 chassis allows placement in humid environments (e.g. near process-water installations). Sound pressure 78 dB(A) -- hearing protection recommended for permanent operator presence.
How does the automatic reverse jet cleaning work?
Timed pneumatic sequence: each cartridge gets a compressed-air pulse in a rotating order. The pulse gently shocks the filter and loosens the dust layer. Occurs during operation, so there is no downtime. Interval typically 30-60 seconds, tuned to dust load. Compressed-air consumption approx 200-400 L/min -- connection 6-8 bar work supply.
Is the PUMA 30 S DEX 1/3D certified for Zone 21?
No. The PUMA HD range is 1/3D -- internal Zone 20 + external Zone 22. For external Zone 21 you must choose a 1/2D model. There is currently no PUMA HD 1/2D in Depureco's standard catalogue -- contact us for project-specific upgrade if you have external Zone 21 requirements.