Alpha PSP-158/114 High-Performance Industrial Pneumatic Polisher (5...
Pickup available at Dynamic Stone Tools Warehouse (Manassas Park, VA)
Usually ready in 2 hours
Description
Description
Alpha® PSP-158/114 High-Performance Industrial Pneumatic Polisher
Alpha®'s flagship pneumatic polisher modernizes wet polishing, drilling, and profiling with a powerful new motor, precise quarter-turn speed control, and an integrated central water-feed system. Delivered with a 30′ kink-free twin air/water hose, the PSP-158/114 is engineered for demanding fabrication-shop and jobsite use.
Features
- Next-generation industrial pneumatic polisher from Alpha®
- Powerful motor (0.70 HP) tuned for demanding wet polishing and grinding applications
- 30′ (9.1 m) kink-free twin air/water hose for better maneuverability
- All-weather hoses rated -40°F to +140°F (-40°C to +60°C)
- Quarter-turn switches for precise air and water control
- Central water-feed system — no external water lines
- Silicon gear-head cover for thermal and impact protection
- Choice of 5/8"-11 (PSP-158) or M14-2 (PSP-114) spindle thread
- Includes rust-inhibitor oil, exhaust hose with clamp, quick-connect ball valve, and reusable toolbox
- One-year tool warranty
| Part No. | Spindle Thread | Max RPM | Recommended For | UPC |
|---|---|---|---|---|
| PSP-114 | M14-2 | 5,500 | Wet Polishing, Drilling & Profiling | 749173430282 |
| PSP-158 | 5/8"-11 | 5,500 | Wet Polishing, Drilling & Profiling | 749173430275 |
- Confirm your compressor delivers at least 21 CFM at 90 PSI; dedicate the line to the polisher for best results.
- Connect the supplied 30′ twin air/water hose to the quick-connect ball valve and tool inlets.
- Thread the appropriate Alpha® wet polishing pad, core bit, or profile wheel onto the 5/8"-11 (PSP-158) or M14-2 (PSP-114) spindle.
- Open the water quarter-turn valve to start the central water feed, then open the air valve gradually to ramp RPM.
- Keep the tool moving and let water flow continuously through the pad — never dry-run a wet polisher.
- At end of shift, add a few drops of rust-inhibitor oil into the air-inlet oil port and pulse air briefly to coat the rotor and cylinder.
- Store the tool dry in the supplied toolbox.
PSP-114
| Part No. | PSP-114 |
| UPC | 749173430282 |
| Thread | M14-2 |
| Max RPM | 5,500 |
| Recommended For | Wet Polishing, Drilling & Profiling |
| Packaged Weight | 10.75 lbs |
| Package Dimensions | 13.5" x 11.5" x 3.5" |
| Commodity Code | 8467.11.5090 |
| Country of Origin | Taiwan |
PSP-158
| Part No. | PSP-158 |
| UPC | 749173430275 |
| Thread | 5/8"-11 |
| Max RPM | 5,500 |
| Recommended For | Wet Polishing, Drilling & Profiling |
| Packaged Weight | 10.75 lbs |
| Package Dimensions | 13.5" x 11.5" x 3.5" |
| Commodity Code | 8467.11.5090 |
| Country of Origin | Taiwan |
| Property | Detail |
|---|---|
| Air Pressure | 90 PSI (6.2 bar) |
| Air Consumption | 21 CFM (594 L/min) |
| No-Load Speed | 5,500 RPM |
| Max. HP | 0.70 HP |
| Tool Weight | 3 lbs (1.37 kg) |
| Air Inlet | 1/4" BSPT |
| Water Inlet | 1/8" BSPT |
| Included Hose | 30 ft (9.1 m) twin air/water hose |
| Operating Temp Range | -40°F to +140°F (-40°C to +60°C) |
| Warranty | One year |
My compressor is large enough, but the PSP-158 bogs down occasionally. What can I do?
If multiple tools share the same compressed-air line you may not have enough flow available. Dedicate the line to the polisher, or upgrade to a compressor that delivers at least 21 CFM @ 90 PSI under continuous duty.
How much rust-inhibitor oil should I add to the oil port?
Alpha® recommends only a few drops at the end of each shift, then slowly turn on the air to lubricate the rotor and cylinder.
Can I use the PSP-158 for grinding?
Yes. The PSP-158 delivers 5,500 no-load RPM with enough torque for grinding applications in addition to wet polishing.
What is the warranty?
One-year tool warranty. See the manual for details.
Where can I get the parts list and schematic?
Download the parts schematic from the Documentation section above, or call Alpha® at 800-648-7229.
Can I use the PSP-158 as a dry polisher?
Yes, with the appropriate dry sanding/polishing accessory kit from Alpha®.
Does Alpha® offer a pneumatic high-speed angle grinder with center water feed?
Yes — the PSC-600 features a center water-feed system, and the PSG-125 Wet Cutting Kit uses an exterior water feed.
Next-Gen Air Polisher from Alpha®
Next-Gen Air Polisher Features
⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.






