{"product_id":"maxpro-pneumatic-wet-grinder","title":"MaxPro 4\" Pneumatic Air Polisher","description":"\u003ch1\u003eMaxPro 4\" Pneumatic Air Polisher\u003c\/h1\u003e\n\u003cp\u003eThe MaxPro 4\" Pneumatic Air Polisher delivers consistent, high-torque power at 5,000 RPM without bogging down — even under sustained load on granite, marble, and engineered stone. Lightweight enough to work all day, tough enough to last through years of daily shop use.\u003c\/p\u003e\n\u003cp\u003eComparable in performance to the original Alpha 658, the MaxPro offers professional-grade reliability at a fraction of the cost — making it a smart choice for production shops and custom fabricators alike.\u003c\/p\u003e\n\u003ch2\u003eWhy Fabricators Choose the MaxPro\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoesn't bog down\u003c\/strong\u003e — maintains consistent RPM under load for smooth, uninterrupted polishing passes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight design\u003c\/strong\u003e — reduces operator fatigue during extended edge work and trim polishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt to last\u003c\/strong\u003e — heavy-duty internal construction engineered for high-cycle shop environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater-feed ready\u003c\/strong\u003e — designed for wet polishing applications on natural and engineered stone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlpha 658-class performance\u003c\/strong\u003e — professional output without the premium price tag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBacking Pad: 4\"\u003c\/li\u003e\n\u003cli\u003eSpindle Size: 5\/8\"-11\u003c\/li\u003e\n\u003cli\u003eMax No-Load Speed: 5,000 RPM\u003c\/li\u003e\n\u003cli\u003eAverage Air Consumption: 5.75 CFM @ 90 PSI\u003c\/li\u003e\n\u003cli\u003eOperating Pressure: 90 PSI\u003c\/li\u003e\n\u003cli\u003eAir Inlet: 1\/4\"\u003c\/li\u003e\n\u003cli\u003eRecommended Air Hose (ID): 3\/8\"\u003c\/li\u003e\n\u003cli\u003eExhaust: Rear Exhaust\u003c\/li\u003e\n\u003cli\u003eWeight: 6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eIdeal Applications\u003c\/h2\u003e\n\u003cp\u003eEdge polishing, trim work, wet sanding, and general fabrication polishing on granite, marble, quartzite, and engineered stone surfaces.\u003c\/p\u003e\n\u003ch2\u003eCare \u0026amp; Maintenance\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLubricate daily with air tool oil before each use\u003c\/li\u003e\n\u003cli\u003eAdd a few drops into the air inlet prior to operation\u003c\/li\u003e\n\u003cli\u003eOil again after use before storage\u003c\/li\u003e\n\u003cli\u003eRun briefly after oiling to distribute lubrication\u003c\/li\u003e\n\u003cli\u003eDo not exceed 90 PSI\u003c\/li\u003e\n\u003cli\u003eStore in a dry environment to prevent internal corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e10 Days: Tool Replacement\u003c\/li\u003e\n\u003cli\u003e90 Days: Warranty Repair\u003c\/li\u003e\n\u003cli\u003eAfter 90 Days: Repair at Cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProper lubrication and maintenance are required to maintain warranty coverage. When submitting for repair, exclude hoses and attachments and clearly describe the issue.\u003c\/p\u003e\n\u003ch2\u003eAuthorized Distributor – ProToolHaus\u003c\/h2\u003e\n\u003cp\u003eProToolHaus is a certified distributor of Weha products. We provide expert product support and fast shipping to keep your shop running without downtime.\u003c\/p\u003e","brand":"Weha","offers":[{"title":"Default Title","offer_id":51164343206112,"sku":"150800","price":369.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/3943\/1904\/files\/MaxProPneumaticWetPolisherwithhosephoto.png?v=1774356713","url":"https:\/\/protoolhaus.com\/products\/maxpro-pneumatic-wet-grinder","provider":"Pro Tool Haus","version":"1.0","type":"link"}