Weha 4" Max Pro Pneumatic Wet Grinder - 150800

Weha 4" Max Pro Pneumatic Wet Grinder - 150800

The Max Pro Water-Feed Air Sander/Polisher is a heavy duty polisher designed for power. Yet, it is engineered to be operated with less fatigue. Use it for wet sanding and/or polishing of stone surfaces made of stone. This product page covers the technical specs, the operation instructions and the care and maintenance of the Max Pro polisher.

This Water-Feed Air Sander/Polisher is of heavy duty construction and extremely powerful. The side handle and head cover reduce fatigue at operation. It is great for wet sanding and polishing of marble and stone, for trim work and much more.

For safety reasons, it is essential to read the entire instruction manual before first operating the Max Pro and to observe all the instructions.

Features

• Heavy-duty construction for durability
• Reduced fatigue with side handle and head cover
• Ideal for wet sanding and polishing marble and stone
• Suitable for trim work and more

What Our Experts Think

• Professional pneumatic wet grinder designed for precision stone fabrication, polishing, and finishing applications.
• 4-inch tool capacity provides excellent control for detailed edge work and surface finishing.
• Wet grinding operation helps reduce dust while keeping tooling cool for improved performance and longevity.
• Air-powered design delivers consistent power without the risk of motor overheating during extended use.
• Lightweight and ergonomic construction enhances operator comfort and reduces fatigue.
• Ideal for polishing, shaping, smoothing, and edge-finishing stone surfaces.
• Suitable for granite, marble, quartz, porcelain, and engineered stone materials.
• Built for demanding fabrication environments where reliability and precision are essential.
• Supports professional-quality finishes with excellent control and consistent results.
• Expert Verdict: The Weha 4" Max Pro Pneumatic Wet Grinder is a durable, high-performance fabrication tool that combines precision, operator comfort, and reliable wet-processing capabilities for professional stone-working applications.

Q&A

Maintenance Tips

• Clean the grinder thoroughly after each use to remove stone slurry, debris, and residue that can affect performance.
• Inspect air hoses, fittings, and connections regularly for leaks, cracks, or signs of wear.
• Ensure a consistent water supply during operation to cool the tool and reduce wear on grinding pads.
• Check grinding pads and backing pads frequently for wear or damage and replace them as needed.
• Lubricate the air motor with the recommended pneumatic tool oil to maintain smooth operation and extend tool life.
• Keep air and water passages clear of blockages to ensure efficient performance.
• Store the grinder in a clean, dry environment when not in use to protect pneumatic components from corrosion.
• Perform routine inspections and preventive maintenance to maximize safety, grinding efficiency, and equipment lifespan.