Description
Engineering Application & Overview
Hertz Pneumatic Deck Scalers are hand-held pneumatic impact tools that remove rust, mill scale, old paint, and weld spatter from steel surfaces through rapid multi-needle hammering or disc rotation action. Deck scaling is the standard surface preparation technique for shipyard maintenance work where hydroblasting is impractical or where localized spot treatment is more efficient than full-area UHP cleaning. The pneumatic drive ensures ATEX compliance for use on vessel decks, tank tops, and cargo hold floors where residual vapour or cargo dust creates electrical ignition risk. Multi-needle scalers achieve Sa 2 surface cleanliness standard in a single pass on heavily corroded mild steel surfaces — meeting the minimum preparation standard required before anti-corrosion primer application at Batam shipyards. Rotary disc scalers handle large flat areas faster, while needle scalers are preferred for welds, corners, and irregular surface profiles.
Technical Specifications Table
| Parameter | Specification |
|---|---|
| Brand | Hertz |
| Type | Pneumatic needle / rotary disc deck scaler |
| Drive | Pneumatic air motor |
| Mechanism | Multi-needle impact (needle) / Rotating disc (disc type) |
| Air Consumption | 300 – 600 L/min at 6 bar |
| Air Inlet | ¼″ – ½″ BSP/NPT |
| Needle Count (needle type) | 19 – 29 needles |
| Surface Finish | Sa 2 to Sa 2.5 (achievable) |
| ATEX Compliance | Yes – spark-free pneumatic drive |
| Weight | 2 – 5 kg (model-dependent) |
The PT HHM Batam Authorized Advantage
PT HHM Engineering Solutions stocks Hertz deck scalers and consumable needle sets in Batam for immediate supply to shipyard maintenance teams and coating contractors across Kepulauan Riau. As Hertz’s authorized distributor in Batam, we stock replacement needle cartridges and air motor vane kits for sustained field operation. Contact: +62 778 489 3282.
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