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Alpha AIR-850/AIR-854 Pneumatic Polishers
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At a Glance
Quick Decision Guide
Maximum Speed
5,500 RPM
Spindle Thread
5/8"-11
Air Pressure
85 PSI
Air Consumption
15 CFM
Water Feed
Central Water-Feed System
Tool Weight
2.75 lbs
Recommended For
Wet Polishing, Drilling & Profiling
Package
Standard Accessory Package
Why Choose This Product
Key Benefits
High-Speed Performance
5,500 RPM maximum speed for wet polishing, drilling and profiling
Center Water Feed
Delivers water through the tool regardless of working position
Improved Motor
Five-hybrid-composite-vane design produces more power
Splash Control
Redesigned guard reduces spray while maintaining work visibility
Lightweight Handling
2.75 lb tool supports maneuverability during fabrication
Improved Controls
Redesigned end case provides easier air and water operation
Protected Gear Head
Silicone cover adds cushioning and insulation during use
Tooling Options
Available with 5/8"-11 or M14-2 spindle threads
Product Information
Product Details
Specifications
Brand
Alpha®
Part Number
AIR-850
UPC
749173430091
Product Type
Pneumatic Polisher
Maximum No-Load Speed
5,500 RPM
Recommended For
Wet Polishing, Drilling & Profiling
Spindle Thread
5/8"-11
Water Feed
Central Water-Feed System
Air Pressure
85 PSI (6 Bar)
Air Consumption
15 CFM (425 L/min)
Air Inlet
1/4" BSPP
Water Inlet
1/8" BSPP
Weight
2.75 lbs (1.2 kg)
Motor
Five-Hybrid-Composite-Vane Design
Splash Guard
Improved Visibility & Splash Control
Gear Head Cover
Silicone
Water Connection
Quick Coupler with Shut-Off Valve
Air Hose
15 ft All-Weather Hose
Water Hose
15 ft All-Weather Hose
Hose Temperature Range
-40°F to +140°F (-40°C to +60°C)
Package
Standard Accessory Package
Color
Blue
Warranty
1 Year Tool Warranty
About This Product
5,500 RPM Pneumatic Polishing for Stone Fabrication
The Alpha® AIR-850/AIR-854 Pneumatic Polishers are high-performance, center water-feed tools for wet polishing, drilling, and profiling hard surfaces. A newly developed motor with a five-hybrid-composite-vane design produces more power and operates at a maximum no-load speed of 5,500 RPM for productive stone fabrication and finishing.
Central Water Feed and Improved Splash Control
The central water-feed system supplies water directly through the tool regardless of working position. A redesigned splash guard reduces water spray while maintaining visibility of the work surface, and the water quick coupler includes a shut-off valve for convenient water control during operation.
Ergonomic Design and Improved Tool Control
The lightweight 2.75 lb design supports maneuverability during polishing and profiling work. A silicone gear head cover adds cushioning and insulation around the gear head, while the redesigned end case improves access to air and water controls and reduces the risk of breakage. An enhanced spindle shaft and full-size wrench simplify tool removal.
5/8"-11 and M14-2 Spindle Options
AIR-850 models use a 5/8"-11 spindle, while AIR-854 models use an M14-2 spindle, allowing fabricators to select the thread configuration that matches their tooling. Both configurations operate at 85 PSI with 15 CFM air consumption and use a 1/4" BSPP air inlet and 1/8" BSPP water inlet.
Standard Package and Machine-Only Configurations
AIR-850 and AIR-854 standard models include 15 ft air and water hoses, a reversible side handle, rust inhibitor oil, exhaust hose, splash guard, double-end wrench, screwdriver, water quick coupler with shut-off valve, and additional service components. AIR-850M and AIR-854M are machine-and-oil-only configurations for users who do not need the standard accessory package.
Product Resources
Documentation & Downloads
Common Questions
Frequently Asked Questions
What is the maximum speed of the AIR-850 and AIR-854 pneumatic polishers?
All AIR-850 and AIR-854 configurations have a maximum no-load speed of 5,500 RPM.
What is the difference between the AIR-850 and AIR-854?
The spindle thread is the primary difference. AIR-850 models use a 5/8"-11 spindle, while AIR-854 models use an M14-2 spindle. Both have a maximum no-load speed of 5,500 RPM and the same listed air requirements.
What are the AIR-850 and AIR-854 recommended for?
They are recommended for wet polishing, drilling, and profiling applications.
How much air do these pneumatic polishers require?
The polishers operate at 85 PSI (6 Bar) with an air consumption of 15 CFM (425 L/min).
Do the AIR-850 and AIR-854 have a center water feed?
Yes. The central water-feed system delivers water through the tool regardless of its working position.
What is the difference between AIR-850 and AIR-850M?
AIR-850 is supplied with the standard accessory package, while AIR-850M is the machine-and-oil-only configuration. Both use a 5/8"-11 spindle and have a maximum speed of 5,500 RPM.
What is the difference between AIR-854 and AIR-854M?
AIR-854 is supplied with the standard accessory package, while AIR-854M is the machine-and-oil-only configuration. Both use an M14-2 spindle and have a maximum speed of 5,500 RPM.
What is included with the standard AIR-850 and AIR-854 models?
The standard models include 15 ft air and water hoses, a reversible side handle, rust inhibitor oil, oil-port screw with O-ring seal, exhaust hose with clamp, spring washer, splash guard, 19 mm/22 mm double-end wrench, Phillips screwdriver, water quick coupler with shut-off valve, and water-valve repair O-ring.