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Alpha PSP High-Performance Pneumatic Polisher
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At a Glance
Quick Decision Guide
Maximum Speed
5,500 RPM
Maximum Power
0.70 HP
Spindle Thread
5/8"-11
Air Pressure
90 PSI
Air Consumption
21 CFM
Water Feed
Central Water-Feed System
Recommended For
Wet Polishing, Drilling & Profiling
Included Hose
30' Twin Air/Water Hose
Why Choose This Product
Key Benefits
High-Performance Motor
Produces up to 0.70 HP for demanding fabrication applications
Precision Control
Quarter-turn switches provide controlled air and water adjustment
Central Water Feed
Supplies ample water regardless of polisher position
Extended Working Range
Includes a 30' twin air/water hose for improved maneuverability
All-Weather Hose
Remains flexible from -40°F to 140°F (-40°C to 60°C)
Versatile Applications
Supports wet polishing, drilling and profiling operations
Complete Setup
Includes hose assembly, rust inhibitor oil, exhaust hose and ball valve
Reusable Storage
Supplied with a reusable toolbox for transport and organization
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
PSP-158
UPC
749173430275
Product Type
Pneumatic Polisher
Model
PSP-158
Spindle Thread
5/8"-11
Maximum Speed
5,500 RPM
Maximum Power
0.70 HP
Recommended Applications
Wet Polishing, Drilling & Profiling
Air Pressure
90 PSI (6.2 Bar)
Air Consumption
21 CFM (594 L/min)
Air Inlet
1/4" BSPT
Water Inlet
1/8" BSPT
Water Feed
Central Water-Feed System
Speed & Water Control
Quarter-Turn Switches
Weight
3 lbs (1.37 kg)
Color
Yellow
Included Hose
30' (9.1 m) Kink-Free Twin Air/Water Hose
Hose Temperature Range
-40°F to 140°F (-40°C to 60°C)
Gear Head Cover
Silicone
Included Oil
3.4 oz. (100 ml) Rust Inhibitor Oil
Included Exhaust Hose
Exhaust Hose with Clamp
Included Valve
Quick-Connect Ball Valve
Storage
Reusable Toolbox
Tool Warranty
1 Year
About This Product
High-Performance Pneumatic Polisher for Stone Fabrication
The Alpha® PSP High-Performance Polisher is an industrial pneumatic tool for wet polishing, drilling, and profiling applications. Its high-performance motor produces up to 0.70 HP with a 5,500 RPM no-load speed for demanding stone fabrication work.
Precision Air, Speed and Water Control
Quarter-turn switches provide precise operating control, while the central water-feed system supplies water during wet applications regardless of tool position. The polisher operates at 90 PSI with an air consumption of 21 CFM and is available with either a 5/8"-11 or M14-2 spindle to accommodate different tooling systems.
30-Foot Twin Air and Water Hose System
A 30' kink-free twin air/water hose assembly provides extended working range and improved maneuverability around the fabrication area. The all-weather hoses remain flexible in temperatures from -40°F to 140°F (-40°C to 60°C), supporting operation across a wide range of working conditions.
Included Accessories and Reusable Toolbox
Each polisher includes a 30' air/water twin hose assembly, 3.4 oz. rust inhibitor oil, exhaust hose with clamp, quick-connect ball valve, and reusable toolbox. A silicone gear head cover adds cushioning around the tool head and provides insulation from the gear housing during operation.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What is the Alpha PSP pneumatic polisher recommended for?
The PSP is recommended for wet polishing, drilling, and profiling applications where pneumatic power and central water delivery are required.
What is the difference between the PSP-158 and PSP-114?
The spindle thread is the primary difference. The PSP-158 uses a 5/8"-11 spindle, while the PSP-114 uses an M14-2 spindle. Both models have a maximum speed of 5,500 RPM and share the same operating specifications.
How much air does the PSP polisher require?
The polisher operates at 90 PSI (6.2 Bar) and has an air consumption of 21 CFM (594 L/min).
Does the Alpha PSP have a central water feed?
Yes. The central water-feed system supplies water during wet polishing, drilling, and profiling regardless of the tool's working position.
How long is the included air and water hose?
The polisher includes a 30' (9.1 m) kink-free twin air/water hose assembly for extended working range and maneuverability.
What temperatures can the included hose handle?
The all-weather hose is designed to remain flexible from -40°F to 140°F (-40°C to 60°C).
What accessories are included with the PSP polisher?
Each polisher includes a 30' twin air/water hose assembly, 3.4 oz. of rust inhibitor oil, an exhaust hose with clamp, a quick-connect ball valve, and a reusable toolbox.