{"product_id":"utr-30-ultrasonic-reciprocating-air-grinder-52-500-rpm-precision-lapping-tool","title":"UTR-30 Ultrasonic Reciprocating Air Grinder – 52,500 RPM Precision Lapping Tool","description":"\u003cp\u003eThe \u003cstrong\u003eUTR-30\u003c\/strong\u003e is a precision ultrasonic reciprocating air grinder engineered for ultra-fine internal grinding, mold polishing, and narrow-bore finishing. With a \u003cstrong\u003e52,500 RPM\u003c\/strong\u003e motor delivering a \u003cstrong\u003e0.3mm reciprocating stroke\u003c\/strong\u003e, it achieves superior surface contact and grinding efficiency where rotary tools cannot — all components machined using Japan STAR (Automatic Lathe) CNC for exceptional part accuracy.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUltrasonic reciprocating motion (0.3mm stroke) for ultra-fine surface finishing and internal bore polishing\u003c\/li\u003e\n\u003cli\u003eHeat-treated spindle core prevents shrinkage during grinding, maintaining full stroke consistency\u003c\/li\u003e\n\u003cli\u003eDual collet system: round 3mm (1\/8\") and square 0.5–3mm × 4–10mm for versatile tooling\u003c\/li\u003e\n\u003cli\u003eUltra-low air consumption: 1.41 CFM (40 L\/min) — energy efficient for continuous operation\u003c\/li\u003e\n\u003cli\u003eFront and rear exhaust design for comfortable grip during extended use\u003c\/li\u003e\n\u003cli\u003eAdjustable roller-type throttle valve for precise speed control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eUltra-fine internal grinding · Mold cavity polishTLS-03 Left-Right Ultrasonic Reciprocating Air Grinder – 35,000 RPM Precision Lapping Tooling · Narrow-bore finishing · Die \u0026amp; mold surface preparation · Precision reciprocating lapping · Metal deburring\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eUTR-30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFree Speed\u003c\/td\u003e\n\u003ctd\u003e52,500 RPM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReciprocating Stroke\u003c\/td\u003e\n\u003ctd\u003e0.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollet Size (Round)\u003c\/td\u003e\n\u003ctd\u003e3mm \/ 1\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollet Size (Square)\u003c\/td\u003e\n\u003ctd\u003e0.5–3mm × 4–10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Length\u003c\/td\u003e\n\u003ctd\u003e205 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Diameter\u003c\/td\u003e\n\u003ctd\u003e30 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight (tool only)\u003c\/td\u003e\n\u003ctd\u003e190 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTool + Hose Weight\u003c\/td\u003e\n\u003ctd\u003e0.283 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Pressure\u003c\/td\u003e\n\u003ctd\u003e90 PSI (6.32 kgf\/cm²)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Consumption\u003c\/td\u003e\n\u003ctd\u003e1.41 CFM \/ 0.04 m³\/min \/ 40 L\/min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Inlet\u003c\/td\u003e\n\u003ctd\u003e1\/4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Hose Length\u003c\/td\u003e\n\u003ctd\u003e1,300 mm (ID: 5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Direction\u003c\/td\u003e\n\u003ctd\u003eFront and rear exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eStandard Accessories Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eL-type hex wrench 2.5mm × 1\u003c\/li\u003e\n\u003cli\u003eCentering tool × 1\u003c\/li\u003e\n\u003cli\u003eSquare collet holder × 1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eOEM\/ODM packaging available. Contact us for wholesale pricing and custom branding options.\u003c\/em\u003e\u003c\/p\u003e","brand":"Sheng Hui Air Tools Co., Ltd.","offers":[{"title":"Default Title","offer_id":48895095374080,"sku":"UTR-30","price":0.0,"currency_code":"TWD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0830\/6235\/8272\/files\/UTR-30.png?v=1782615776","url":"https:\/\/shenghuiairtools.com\/products\/utr-30-ultrasonic-reciprocating-air-grinder-52-500-rpm-precision-lapping-tool","provider":"Sheng Hui Air Tools Co., Ltd.","version":"1.0","type":"link"}