Alpha AIR-830/834 Pneumatic Polisher is a pneumatic polisher designed for wet polishing, drilling, and profiling of granite, marble, quartz, engineered stone, and other hard surface materials. The tool features a center water-feed system that delivers water directly through the spindle to the polishing surface for consistent cooling and debris control.
Both AIR-830 and AIR-834 models operate at a maximum no-load speed of 4,000 RPM and utilize a hybrid composite vane motor design that outputs increased power while extending service life. A redesigned end case improves water and air control and helps reduce impact-related damage during jobsite use.
The AIR-830 model uses a 5/8"-11 spindle, while the AIR-834 model uses an M14-2 spindle. Machine-only versions (AIR-830M and AIR-834M) are also available and include the tool and oil without the full accessory kit. All versions require 85 PSI and consume 15 CFM of compressed air.
Key Features
- Center Water-Feed System: Directs water through the spindle for wet polishing applications.
- Pneumatic Operation: Runs at 4,000 RPM using compressed air.
- Hybrid Composite Vane Motor: Increases motor efficiency and service life.
- Spindle Options: Available in 5/8"-11 or M14-2 thread configurations.
- Redesigned Housing: Improves air and water control while reducing breakage risk.
- All-Weather Hoses: 15 ft air and water hoses rated from -40°F to 140°F.
- Lightweight Construction: Approximately 2.75 lbs for controlled handling.
Specifications
| Specification | Details |
|---|---|
| Air Pressure | 85 PSI (6 Bar) |
| Air Consumption | 15 CFM (425 L/min) |
| No Load Speed | 4,000 RPM |
| Weight | 2.75 lbs (1.2 kg) |
| Air Inlet | 1/4" BSPP |
| Water Inlet | 1/8" BSPP |
| Spindle Threads | 5/8"-11 or M14-2 |
Available Models
| Part No. | Maximum RPM | Threads | Description |
|---|---|---|---|
| AIR-830 | 4,000 | 5/8"-11 | Pneumatic Polisher |
| AIR-834 | 4,000 | M14-2 | Pneumatic Polisher |
| AIR-830M | 4,000 | 5/8"-11 | Machine and Oil Only |
| AIR-834M | 4,000 | M14-2 | Machine and Oil Only |
This pneumatic polisher provides controlled wet polishing performance for fabrication and installation tasks requiring consistent material removal and surface refinement.
