{"product_id":"dynabrade-57920-palm-air-orbital-sander-4x4-5-16-in","title":"Dynabrade 57920 Palm Air Orbital Sander 4x4-5\/16 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DYNABRADE 57920 is a palm-style air-powered orbital sander designed for finishing and surface preparation work across woodworking, metalworking, and composite applications. It operates at up to 20,000 orbits per minute (OPM) and uses a rectangular 4 x 4-5\/16 inch pad, making it well suited for flat-surface sanding in tight or contoured areas. The tool runs on compressed air at 90 psig through a 1\/4 NPT inlet and requires 9 CFM of airflow at operating pressure. It ships with a vinyl-face pad with clips (part 57999). The compact palm grip design allows extended use with reduced fatigue, and the orbital action delivers a consistent swirl-free finish on wood, metal, and painted surfaces. HVAC, woodworking, and finishing tradespeople are the primary installers.\u003c\/p\u003e\n\u003cp\u003eThe DYNABRADE 57920 is used in residential and light commercial finishing environments where a rectangular pad is needed to access corners and flat panel surfaces. The 4 inch pad width makes it effective for cabinet work, door panels, drywall feathering, and metal prep. Its palm-grip form factor suits bench work and on-site finish sanding. The 0.09375 inch (2 mm) orbit diameter delivers a fine, controlled cut suitable for final-pass sanding before coating or painting. A minimum hose size of 0.25 inches is required to maintain adequate airflow.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e20,000 OPM orbital speed for efficient material removal and smooth finishing\u003c\/li\u003e\n  \u003cli\u003eRectangular 4 x 4-5\/16 inch pad accesses corners and flat panel surfaces\u003c\/li\u003e\n  \u003cli\u003e0.09375 inch (2 mm) orbit diameter for fine, swirl-minimized surface finish\u003c\/li\u003e\n  \u003cli\u003e90 psig operating pressure with 1\/4 NPT air inlet for standard shop air supply\u003c\/li\u003e\n  \u003cli\u003e9 CFM air consumption — verify compressor capacity before use\u003c\/li\u003e\n  \u003cli\u003eIncludes 57999 vinyl-face pad with clips, ready to use out of box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard sanding sheets sized for a 4 x 4-5\/16 inch rectangular pad. Ships with DYNABRADE part 57999 vinyl-face pad with clips. Requires a compressed air supply at 90 psig with a minimum 1\/4 inch hose.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eConnection to a compressed air supply should be made by a qualified individual familiar with pneumatic tool safety. Shut off and bleed the air line before attaching or removing the tool. Verify the compressor output meets or exceeds 9 CFM at 90 psig before sustained operation to prevent performance loss. Follow applicable workplace safety and PPE requirements when operating orbital sanders, including eye protection and dust management controls.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrbital Speed\u003c\/strong\u003e: 20,000 OPM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir Consumption\u003c\/strong\u003e: 9 CFM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Pressure\u003c\/strong\u003e: 90 psig\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAir Inlet\u003c\/strong\u003e: 1\/4 NPT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePad Size\u003c\/strong\u003e: 4 x 4-5\/16 inches rectangular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePad Width\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrbit Diameter\u003c\/strong\u003e: 0.09375 inches (2 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Hose Size\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Pad Type\u003c\/strong\u003e: Sanding Backing Pad\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVacuum\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.75 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DYNABRADE\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 57920\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DYNABRADE","offers":[{"title":"Default Title","offer_id":51542938747186,"sku":"57920","price":410.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e906edf9340290aea6cf7e9ff063c19e.jpg?v=1785911663","url":"https:\/\/voomisupply.com\/products\/dynabrade-57920-palm-air-orbital-sander-4x4-5-16-in","provider":"Voomi Supply","version":"1.0","type":"link"}