The Alpha AIR-680UW Underwater Pneumatic Polisher is a pneumatic polisher engineered for underwater polishing and grinding of stone, plaster, and masonry surfaces. The tool operates using compressed air and features a central water-feed system that delivers consistent water flow directly to the polishing interface during operation.
Designed as a modified version of the AIR-680 platform, the tool includes a flexible vacuum hose assembly that allows submerged polishing in most pool sizes. The system supports wet polishing both underwater and at the surface, with the option to operate without the vacuum hose when underwater suction is not required.
The tool operates at a maximum no-load speed of 4,000 RPM, consumes 15 CFM, and requires 85 PSI of air pressure. A 5/8"-11 spindle allows compatibility with common 7-inch backer pads and polishing accessories. Lightweight construction and multiple handle options support controlled operation during extended polishing tasks.
Key Features
- Underwater Polishing Capability: Supports polishing and grinding in submerged environments such as pools and fountains.
- Central Water-Feed System: Delivers consistent water flow regardless of tool orientation.
- Pneumatic Drive: Operates at 4,000 RPM using compressed air.
- Extended Hose Assemblies: Includes 15 ft air and water hoses, 30 ft air hose, and 27 ft flexible vacuum hose.
- 5/8"-11 Spindle: Accepts standard rotary backer pads and polishing accessories.
- Lightweight Construction: Weighs 2.64 lbs for improved maneuverability.
- Multiple Handle Options: Includes side handle and C-handle for operator control.
Specifications
| Specification | Details |
|---|---|
| Model | AIR-680UW |
| Air Pressure | 85 PSI (6 Bar) |
| Air Consumption | 15 CFM (425 L/min) |
| No Load Speed | 4,000 RPM |
| Weight | 2.64 lbs (1.2 kg) |
| Spindle | 5/8"-11 |
| Air Inlet | 1/4" BSPP |
| Water Inlet | 1/8" BSPP |
Kit Includes
- Air hose assembly (15 ft)
- Water hose assembly (15 ft)
- Air hose assembly (30 ft)
- Flexible vacuum hose (27 ft)
- Side handle
- C-handle
- Double end wrench (19 mm / 22 mm)
- Philips screwdriver (P1)
- Exhaust hose with clamp
- Water quick connector with shut-off valve
- Rust inhibitor oil (6 oz)
- 7" rotary backer pad
- 7" PlasterKing pad #50
- 7" PlasterKing pad #100
This underwater polisher is used for wet polishing and surface refinement in submerged and wet stone and plaster applications.
