ALPHA AIR-680UW Underwater Pneumatic Polisher
The ALPHA AIR-680UW Underwater Pneumatic Polisher is the ultimate solution for polishing and grinding in submerged environments. Designed as a modified version of the best-selling AIR-680, this high-performance tool now features a 27 ft. vacuum hose, enabling efficient underwater polishing in most pool sizes. Its central water-fed distribution system ensures the highest quality finishes, while the lightweight, ergonomic design allows for superior comfort and control during operation.
With a maximum speed of 4,000 RPM, air consumption of 15 CFM, and a requirement of 85 PSI, the AIR-680UW delivers consistent professional results. Equipped with a 5/8”-11 spindle, 15 ft. flexible air and water supply hoses, a 30 ft. air hose, and an oil port for easy maintenance, it’s built for performance and durability. The Hybrid Flexible Material hoses remain all-weather flexible down to -40°F, ensuring reliability in any condition. For added versatility, the tool can also be used without the vacuum hose for wet polishing applications.
AIR-680UW Underwater Pneumatic Polisher Main Features
- High-Performance, Pneumatic Polisher for Underwater Applications
- Central Water-Feed System Delivers Ample Water Regardless of Position for Plaster Polishing
- No-Load RPM- 4,000
- 15ft. All-Weather Air & Water Hoses with Flexibility Down To -40°F Or +140°F (-40°C Or +60°C)
- 30ft. All-Weather Air Hose with Flexibility Down To -40°F Or +140°F (-40°C Or +60°C)
- 27ft. Flexible Exhaust Hose included
- 7″ Rotary Backer Pad, 7″ 50 Grit and 7″ 100 Grit PlasterKing Pads Included
- Lightweight and Ergonomically Designed for Better Maneuverability
- Side and C-Handle are Standard Accessories
- Enhanced Spindle Shaft for Easy Tool Removal (Wrench Included)
- One Year Tool Warranty*
ALPHA AIR-680UW Underwater Pneumatic Polisher Specifications
| Feature | Value |
|---|---|
| Model | AIR-680UW |
| Air Pressure | 85 PSI (6 Bar) |
| Air Consumption | 15 CFM (425L/min) |
| No Load Speed | 4,000 RPM |
| Weight | 2.64 lbs (1.2 kgs) |
| Air Inlet | 1/4” BSPP |
| Water Inlet | 1/8” BSPP |
| Spindle | 5/8”-11 |
| Part No. | Size | Thickness | Maximum RPM | Type | Recommended For | Threads | For Use On | Grit | Color |
|---|---|---|---|---|---|---|---|---|---|
| AIR-680UW | 4,000 | Pneumatic Polisher | Underwater Wet Polishing, Drilling & Profiling | 5/8″-11 | |||||
| MP758HL | 7″ | Hook & Loop | 5/8″-11 | Rotary Polisher | |||||
| PS070050 | 7″ | 5mm | 5,500 | Hook & Loop | Pool Plaster | 50 | Yellow | ||
| PS070100 | 7″ | 5mm | 5,500 | Hook & Loop | Pool Plaster | 100 | Red | ||
| PS090050 | 9″ | 5mm | 5,500 | Hook & Loop | Pool Plaster | 50 | Yellow | ||
| PS090100 | 9″ | 5mm | 5,500 | Hook & Loop | Pool Plaster | 100 | Red |
Equipment Included
| Item | Quantity |
|---|---|
| Air Hose Assembly | 1 (15ft / 4.5m) |
| Water Hose Assembly | 1 (15ft / 4.5m) |
| Side Handle (Reversible) | 1 |
| C-Handle | 1 |
| Double End Wrench | 1 (19mm / 22mm) |
| Screw (w/O-Ring Seal for oil port) | 1 |
| Philips Screwdriver (P1) | 1 |
| Exhaust Hose with Clamp | 1 |
| Flexible Vacuum Hose | 1 (27ft / 8.1m) |
| Air Hose Assembly | 1 (30ft / 9.0m) |
| Water Quick Connector with Shut-Off Valve | 1 |
| Rust Inhibitor Oil | 1 (6oz / 200ml) (replace with AIR-008) |
| Rotary Backer Pad 7” | 1 (MP758HL) |
| PlasterKing Pad 7″ #50 | 1 |
| PlasterKing Pad 7″ #100 | 1 |
AIR-680UW Underwater Pneumatic Polisher Related Documents
| Document Type | Link |
|---|---|
| Manual | AIR-680UW Manual v0221 |
| Manual | AIR-680UW Manual v1121 |
| Reference | AIR-680UW_UsingUnderwater |
| Reference | AIR-680UW_NormalUsage |
| Parts-Schematic | AIR-680UW Parts/Schematic v0225 |
| Flyer | Plasterking flyer |
| Flyer | AIR-680UW flyer |
| Other | Warranty Information |
Additional Information
| PartNo | UPC Code | Pkg. Weight (lbs) | Package Dimensions | Commodity Code | Country Of Origin |
|---|---|---|---|---|---|
| AIR-680UW | 749173430169 | 13.0 | 18in x 14in x 11in | 8467.11.5090 | Japan |
| MP758HL | 749173561177 | 0.45 | 10in x 2in x 11in | 3926.90.9989 | China |
| PS070050 | 749173480188 | 0.65 | 7.25in x 7.25in x 7.25in | 6804.21.9000 | China |
| PS070100 | 749173480195 | 0.65 | 7.25in x 7.25in x 7.25in | 6804.21.9000 | China |
| PS090050 | 749173480201 | 0.95 | 9.25in x 9.25in x 9.25in | 6804.21.9000 | China |
| PS090100 | 749173480218 | 0.95 | 9.25in x 9.25in x 9.25in | 6804.21.9000 | China |
Frequently Asked Questions
I feel the Flex Vacuum Hose is too bulky for the application. Can I use AIR-680UW under the water without Flex Vacuum Hose?
Yes. However as soon as you stop you polisher underwater, water will try to back wash into the motor so that I highly suggest to use Flexible Vacuum Hose with it. If for any reason, you must use it without Flexible Vacuum Hose, I suggest that you start the polisher in the air then dive with it to complete the task then come back up in the air without stopping the polisher so that air flow is constantly exhausting in one direction that avoid water coming into the polisher.
How much and how often do I need to put rust inhibitor oil in the oil port?
Alpha® suggests to put only a few drops of rust inhibitor oil in the oil port at the end of the shift then slowly turn on the air to lubricate the rotor and cylinder. If you blow compressed air in full, rust inhibitor oil will come out from the exhaust that would defeat the purpose.
Can I use AIR-680UW for grinding application?
Yes. You can use either AIR-680UW for grinding applications if you equip it with the right tooling. Since the rpm is set for polishing, I suggest wet grinding to avoid any overheating problems with your tool.
What is the warranty on the AIR-680UW?
One year warranty (See manual for details)
How can I get the parts list and schematic for the AIR-680UW?
Visit our website at www.alpha-tools.com or call at 800-648-7229.
Can I use AIR-680UW as a dry polisher?
Yes you can. Alpha® will release a new Ecoguard G4 at the end of 2020 so we recommend using this new dust guard designed for 4” dry polishing pads along with a HEPA vacuum to make yourself compliant with the OSHA silica rules.
Does Alpha® offer a pneumatic high-speed angle grinder with center water feed system?
We offer the PSC-600 which takes any grinding tool with 7/8” arbor depending on your application. Alpha® also offers the PSG-125 and WBCKIT for high-speed applications for cutting, grinding and profiling with an exterior water feed system.
There are no reviews yet.