Depureco PUMA HD 30S ACD
- Steelworks with 24/7 operation and continuous coarse-dust collection
- Powder-metallurgy primary plants with sintered fine dust
- Continuous powder transfer in large process installations
- Plasma-cutting houses with heavy metal splatter and slag particles
- Repair-and-maintenance houses at steelworks and foundries
- IEC 60335-2-69 Annex AA (ACD)
- Low Voltage Directive 2014/35/EU
- EMC Directive 2014/30/EU
Depureco PUMA HD 30S ACD
The Depureco PUMA HD 30S ACD is the suction model in the HD range: same 21.3 kW motor as the 30P, but calibrated to 445 mbar vacuum at the expense of flow (1110 m3/h here). The S designation makes it optimal for collection through long narrow channels -- for example fine foundry sand, magnetite dust or metal splatter from plasma cutting. Reinforced 620 kg frame, 110,000 cm2 antistatic polyester filter and IEC 60335-2-69 Annex AA certification.
Applications
- Steelworks with 24/7 operation and continuous coarse-dust collection
- Powder-metallurgy primary plants with sintered fine dust
- Continuous powder transfer in large process installations
- Plasma-cutting houses with heavy metal splatter and slag particles
- Repair-and-maintenance houses at steelworks and foundries
Technical specifications
| ATEX marking | ACD EX 1/- D (intern konstruktion svarende til Zone 20 per IEC 60335-2-69 Annex AA) |
|---|---|
| Internal / external zone | 20 / ikke-ATEX |
| Motor type | Sidekanalblaeser 3-fase (21,3 kW, sug-prioriteret) med cyklon |
| Duty cycle | Continuous |
| Airflow | 1110 m³/h |
| Vacuum | 445 mbar (4539 mmH₂O) |
| Container | 175 L |
| Sound pressure | 78 dB(A) |
| Filter class | M class |
| Filter type | Stjernefilter antistatisk polyester klasse M. 110.000 cm2 (HEPA H14 som tilvalg) |
| Primary filter | Stjernefilter antistatisk polyester klasse M. 110.000 cm2 |
| Collection system | Detachable container |
| Material | Lakeret staalkonstruktion, AISI 304 stoevbeholder |
| IP class | IP55 |
| Power | 21.3 kW |
| Voltage | 400 V / 50 Hz |
| Inlet | Ø 130 mm |
| Dimensions (L × W × H) | 1050 x 1950 x 2300 mm |
| Weight | 620 kg |
Questions and answers
Why is the Depureco PUMA HD 30S ACD a better choice than a standard industrial vacuum?
Because steelworks, foundries and powder metallurgy wear out ordinary PUMA models in a few months. The HD range has a reinforced frame over 560 kg, 110,000 cm2 antistatic polyester filter area, factory-fitted electric shaker and integrated forklift inlets -- a category-level different robustness. The ACD certification per IEC 60335-2-69 Annex AA preserves internal Zone 20 capacity under extreme operating conditions.
Why this specific motor and phase configuration?
A three-phase side-channel blower at 21.3-25.3 kW is the only motor configuration that can move the air quantities and handle the vacuum-demanding applications HD industry requires. The motor is overspecified for 24/7 duty with service intervals of several thousand hours, and the drivetrain is direct-coupled without drive belts requiring maintenance.
What types of dust is the Depureco PUMA HD 30S ACD actually intended for?
The heaviest combustible dust fractions: coarse foundry sand, magnetite dust, slag particles, fine aluminium and titanium dust from rolling and stamping processes, powder-metallurgy fine fractions, fine metal particles from plasma and laser cutting. The HD range is chosen where a standard PUMA is undersized and where INERT protection is not required (the dust is combustible but not reactive).
What is the difference between ACD and ATEX?
ACD is the IEC 60335-2-69 Annex AA certification for combustible dust in non-ATEX-classified plants. Most steelworks and foundries are not formally ATEX-classified, but the dust is still combustible and equipment must be certified. ATEX is the 2014/34/EU Directive for formally classified zones.
Which filter is fitted as standard, and can I upgrade to HEPA?
The standard is an antistatic polyester star filter class M at 110000 cm2 with integrated electric shaker -- a mechanical cleaning function ensuring continuous filter area even in high-dust environments. Options are HEPA H14 and pulse cleaning systems (compressed-air based) for fully automated filter maintenance.
How mobile or stationary is it in practice?
The Depureco PUMA HD 30S ACD weighs 620 kg and measures 1050 x 1950 x 2300 mm -- an industrial HD vacuum with integrated forklift inlets for service relocation. It is placed fixed at a foundry, steelworks or powder-metallurgy plant and connected via permanent three-phase cable. Noise level is 78 dB(A) at 1 metre.