Depureco PUMA 30 S DEX 1/2D
- API pharmaceutical and battery-electrolyte raw material handling with Zone 21 around production lines
- Energy-ash and combustion-residue collection with fine sticky dust
- Long hose runs (>30 m) for central collection from multiple operator positions
- Blind enclosures and closed process equipment where high vacuum is required to draw dust out
- Micronised mineral dust (graphite, silica, talc) in Zone 21 production environments
- ATEX Directive 2014/34/EU -- II 1/2D Ex htc IIIC T140°C Da/Db
- EN 17348:2022 (harmonized March 2023)
- IEC 60335-2-69 (industrial vacuums)
Depureco PUMA 30 S DEX 1/2D
The Depureco PUMA 30 S DEX 1/2D is the suction-prioritised heavy-duty machine in the PUMA HD range with 1/2D certification -- 18.5 kW three-phase side-channel blower calibrated to highest terminal vacuum (380 mbar) through a 130 mm inlet. It is the right tool when you have long hose runs, fine sticky dust, or extraction from blind enclosures where airflow cannot move as freely as with a short direct run. Applications range from API pharmaceutical raw materials and battery electrolyte paste to roasting dust from energy-ash handling. The 180,000 cm2 antistatic polyester M class cartridge handles fine dust fractions down to 0.5 micron, and the 110,000 cm2 H14 absolute filter third stage ensures Zone 21 surroundings are not contaminated by discharge. Automatic reverse jet cleaning standard, 175 L AISI 304 container, TUEV-certified electrical panel. 620 kg heavy-duty chassis, IP65. ATEX II 1/2D Ex htc IIIC T140°C Da/Db.
Applications
- API pharmaceutical and battery-electrolyte raw material handling with Zone 21 around production lines
- Energy-ash and combustion-residue collection with fine sticky dust
- Long hose runs (>30 m) for central collection from multiple operator positions
- Blind enclosures and closed process equipment where high vacuum is required to draw dust out
- Micronised mineral dust (graphite, silica, talc) in Zone 21 production environments
Technical specifications
| ATEX marking | II 1/2D Ex htc IIIC T140°C Da/Db |
|---|---|
| Internal / external zone | 20 / 21 |
| 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). H14 absolutfilter 110.000 cm2 inkluderet. |
| Primary filter | Cartridge antistatisk polyester klasse M, 180.000 cm2 |
| Cleaning system | Automatisk reverse jet cleaning (standard) |
| 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
When should I choose the S model over the P model?
Choose S (suction-prioritised) when pipe pressure drop is high: long runs, many bends, fine sticky dust that clogs light runs, or blind enclosures. S delivers 380 mbar vacuum -- twice that of P (170 mbar) -- but most flow is smaller (1180 vs 1940 m3/h). Rule of thumb: over 25 m of hose or dust below 5 micron choose S; large volumes of coarse fractions in short runs choose P. Feel free to contact us with a piping diagram and we'll run a pressure-drop calculation to make the right choice.
Is 18.5 kW a downgrade compared to the P model's 22 kW?
No, it's calibration. Side-channel blowers have a specific curve -- higher vacuum requires more motor torque per cubic metre of air, but smaller total air volume. Depureco fully utilises 18.5 kW at the S model's operating point: 380 mbar x 1180 m3/h is actually the same hydraulic power as the P model's 170 mbar x 1940 m3/h. The two models deliver nearly identical work per kWh -- the difference is where on the vacuum/flow curve the performance is tuned. If that seems counterintuitive, remember shaft work = pressure x volume; reduce volume, up the pressure.
Is the machine suitable for pharmaceutical cGMP environments?
Yes to level-2 (raw materials and process-close) but contact us for level-1 (sterile filling) where a validated hygienic design with rounded-corner AISI 316L contact and SIP/CIP connection is available as an option. The standard PUMA 30 S 1/2D has AISI 304 dust container with easy-pull-out design, fitting for a particle sampling port and H14 DOP test port. All IQ/OQ documentation parts supplied on request. Note: the size (1050 x 1950 mm footprint) requires spatial planning in cGMP environments where you normally use SCM-50 or smaller mobile units.
What about battery electrolyte collection? Is there a special chemical protection?
The standard AISI 304 container is compatible with LFP, NMC and LCO electrolyte dust in dry form, but *not* with free-flowing liquids containing LiPF6. For lithium salts and organic carbonate dust we recommend the option with AISI 316L container and silicone gasket between filter panel and chassis (resists HF formation from LiPF6 if the dust absorbs atmospheric moisture). The cartridge filter can also be upgraded to PTFE-laminated polyester for stronger chemical resistance. Contact us for dimensioning check -- we work closely with battery-sector ATEX authorities.
What is the noise level at 380 mbar operation? Do operators need hearing protection?
Sound pressure 78 dB(A) at 1 m, measured at the S model's nominal operating point. That is below the employer-mandatory hearing protection threshold (80 dB(A) for 8-hour exposure per EU Directive 2003/10/EC), but in combination with other machines the accumulated level can quickly exceed the limit. For permanent operator presence within 2 m we recommend hearing protection as standard. Side-channel blowers have a characteristic high-frequency tone (blade-pass frequency) which the 22 kW P model has at lower mBar and therefore subjectively sounds less piercing -- even though measured dB(A) is the same.
Can the PUMA 30 S DEX 1/2D be driven by a variable frequency drive (VFD)?
Side-channel blowers can in principle be driven by VFD, but PUMA HD is factory-tuned for 50/60 Hz direct-on-line operation. If you want VFD control (e.g. for soft-start or energy saving at partial load), contact us -- it requires a custom-tailored TUEV-certified panel with ATEX-approved VFD and additional thermal sensors to preserve the T140°C certification. The standard answer in Depureco's configurator is no, not as an option; but in projects with long operating times and variable load we have delivered customer-tailored VFD integrations with additional certification documentation.