Alpha Variable Speed Wet Polisher -  VSP-320 
Alpha VSP-320 Variable Speed Wet Polisher
Alpha has replaced the VSP-120 with the newly designed VSP-320. Although the general appearance of the machines is similar, we have overhauled these models to make them durable and dependable tools. The major upgrade came in the form of heavy-duty gear systems, including the step-down transmission and a bevel and pinion gear to produce the variable speed range of 700 to 2,500 rpm. Thanks to the high-tech machine center, we have all parts precision-machined to reduce noise and vibration during the application. This upgrade ensures a long-lasting tool life and a comfortable application.
Features
- The spindle is now specially coated to reduce friction and extend the life of the oil seals
 
- The water hose is now very flexible and kink-free
 
- The electrical power cord has an in-line GFCI
 
- Hose lengths are now 15 ft. and are bundled by 3 ft. of an EasyOn-EasyOff sleeve that improves the maneuverability of the polisher
 
- Adjustable splash guard and ventilation cap minimize water getting inside the motor housing - exclusive to Alpha Tools
 
- Comes with a standard C-Handle for torque-oriented applications such as Profiling and Core Drilling and a standard Side Handle for general edge polishing applications
 
Included
- Alpha VSP-320 Variable Speed Polisher
 
- Ground Fault Circuit Interrupter
 
- Water Valve and Flexible Hose
 
- Faucet/Garden Hose Adapter
 
- Wrench
 
- C-Handle
 
- Side Handle (reversible)
 
- Extra Carbon Brush Set
 
- Ventilation Cap
 
- Splash Guard
 
- EasyOn-EasyOff Sleeve
 
- Operator's Manual
 
Specifications
| Power | 
7 amps / 800 W | 
| Voltage | 
120V | 
| RPM | 
700-2500 | 
| Connection | 
5/8"-11 thread | 
| Weight | 
7.3 lbs | 
What Our Experts Think
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Precision Polishing: Designed for smooth, swirl-free finishes on granite, marble, quartz, and other stone surfaces.
 
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Variable Speed Control: Adjustable speeds (from 700 to 2,500 RPM) for optimal performance on different materials.
 
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Wet Polishing System: Built-in water feed reduces dust, cools the surface, and extends pad life.
 
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Ergonomic & Lightweight: Comfortable grip and balanced design for reduced fatigue during extended use.
 
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Powerful & Durable: High-performance motor ensures consistent results in demanding fabrication environments.
 
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Versatile Application: Ideal for countertop fabricators, tile installers, and stone professionals.
 
Q&A
Q: What is the Alpha Variable Speed Wet Polisher - VSP-320?
A: The Alpha VSP-320 is a professional-grade variable speed wet polisher designed for precision polishing of stone, quartz, and other hard surfaces.
Q: Why choose this wet polisher?
A: It offers adjustable speed control, water-fed operation for dust suppression, and a powerful motor for smooth, high-quality polishing results.
Q: What materials can it be used on?
A: This polisher is ideal for granite, quartz, marble, concrete, and engineered stone surfaces.
Q: Is it easy to use?
A: Yes, its ergonomic design and variable speed settings provide greater control and comfort for extended use.
Maintenance Tips
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Clean After Each Use: Wipe down the polisher and use compressed air to remove dust, debris, and moisture from vents and moving parts.
 
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Inspect Polishing Pads: Check for wear and replace pads as needed for optimal polishing performance.
 
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Monitor Water Flow: Ensure the water feed system is functioning correctly to keep the surface cool and dust-free.
 
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Check Power Cord & Connections: Regularly inspect for frayed wires or loose connections to prevent electrical hazards.
 
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Lubricate Bearings & Moving Parts: Apply a small amount of machine oil periodically to keep components running smoothly.
 
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Adjust Speed Properly: Use the correct speed setting for different materials to prevent overheating and excessive wear.
 
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Tighten Fasteners: Secure screws, bolts, and attachments before each use to maintain stability and precision.
 
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Avoid Excessive Pressure: Let the polisher do the work—too much force can damage the motor and reduce efficiency.