Alpha WDP-320 Wet/Dry Variable Speed Polisher

The Ultimate Wet & Dry Polisher for Professional Fabricators

The Alpha® WDP-320 Wet/Dry Variable Speed Polisher was designed for fabricators who demand maximum versatility. Whether you're polishing granite countertops, quartz surfaces, marble, porcelain slabs, engineered stone, or decorative concrete, the WDP-320 allows you to switch between wet and dry polishing without changing tools.

Built with Alpha's proven engineering, the WDP-320 combines powerful performance, precise speed control, integrated water delivery, and dust collection capabilities into one professional-grade polishing system.

Why Fabricators Choose the WDP-320

Most polishing systems force you to choose between wet polishing and dry polishing. The WDP-320 gives you both.

Benefits include:

• Wet or dry polishing capability

• Variable speed control

• Dust collection compatibility

• Professional-grade durability

• Reduced setup time

• Improved productivity

For shops that work with multiple materials and applications, the WDP-320 eliminates the need for multiple polishing machines.

Ideal for Granite & Quartz Fabrication

The WDP-320 excels on:

• Granite countertops

• Quartz countertops

• Marble surfaces

• Limestone

• Porcelain slabs

• Engineered stone

• Decorative concrete

Its smooth operation and speed control allow fabricators to achieve premium finishes while minimizing swirl marks and heat buildup.

Wet Polishing Performance

The integrated water-feed system helps:

• Extend pad life

• Improve polishing quality

• Reduce heat

• Suppress dust

• Create deeper gloss finishes

The included water hose assembly provides reliable water delivery for daily fabrication work.

Dry Polishing Without the Mess

The WDP-320 can quickly convert into a dry polishing system.

When connected to a HEPA vacuum and used with Alpha's Ecoguard G system, fabricators can significantly reduce airborne dust while maintaining professional polishing performance.

This is especially valuable for:

• Indoor installations

• Occupied homes

• Commercial remodels

• Concrete polishing

• Jobsite modifications

Ecoguard G Dust Collection System

Alpha's Ecoguard G helps contain dust and debris while polishing.

Benefits include:

• Improved dust control

• Cleaner work areas

• Better visibility

• Faster cleanup

• Ability to polish closer to walls and vertical surfaces

Variable Speed Control

Every material requires a different polishing speed.

The WDP-320 features:

• Speed Range: 700–2,500 RPM

This allows fabricators to:

• Match polishing speed to material

• Improve finish quality

• Reduce overheating

• Control aggressive polishing stages

• Refine final polishing results

Built for Daily Production

Alpha redesigned the WDP-320 for professional production environments.

Upgrades include:

• Heavy-duty gear train

• Precision-machined gears

• Reduced vibration

• Reduced operating noise

• Extended service life

• Improved reliability

The result is a machine built for daily fabrication shop use.

Specifications

Model: WDP-320

Voltage: 120V

Power: 800 Watts

Amperage: 7.0 Amps

Variable Speed: 700–2,500 RPM

Weight: 7.3 lbs

Spindle Thread: 5/8"-11

Recommended Pad Size: 5"

Warranty: 1 Year Manufacturer Warranty

Included Accessories

• Ecoguard G

• GFCI Protection Unit

• Water Hose Assembly

• Water Spray Valve Assembly

• C-Handle

• Side Handle

• EasyOn-EasyOff Sleeve

• Carbon Brush Set

• Pin Wrench

• Open End Wrench

• Ventilation Cap

• Hose Adapter

• Flange & Lock Nut Set

• Stainless Steel Hose Band

Best Applications

• Granite Countertops

• Quartz Countertops

• Marble Fabrication

• Limestone Fabrication

• Porcelain Slabs

• Concrete Countertops

• Stone Restoration

• Monument Work

• Edge Polishing

• Sink Cutout Polishing

• Dry Concrete Polishing

• Field Installation Work

Why Professionals Trust Alpha

For decades, Alpha Professional Tools has produced some of the industry's most respected fabrication equipment.

The WDP-320 continues that tradition by offering one machine capable of handling both wet and dry polishing applications while delivering professional-grade results.

The Bottom Line

The Alpha WDP-320 Wet/Dry Variable Speed Polisher is one of the most versatile polishing machines available today.

With wet and dry capability, variable speed control, integrated dust collection options, and production-ready durability, it has become a favorite among countertop fabricators, concrete artisans, restoration contractors, and stone professionals throughout North America.

Available now from BladeRunner Diamond Tools.

www.bladerunnerdiamondtools.com