{"product_id":"yt27-air-leg-pneumatic-rock-drill","title":"YT27 Air-Leg Pneumatic Rock Drill — Medium-Class 34–42 mm Drill for Hard Rock Mining \u0026 Tunneling","description":"\u003csection class=\"pm-product-copy\"\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe YT27 is a medium-class air-leg pneumatic rock drill intended for blast-hole drilling in medium-hard and hard rock. It sits between the lighter YT24 and higher-output YT28\/YT29A class, and should be selected after checking hole diameter, depth, air supply, drill steel and operator requirements.\u003c\/p\u003e\n\u003ch2\u003eSelection and Compatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eH22 × 108 mm shank and matching tapered rods\u003c\/li\u003e\n\u003cli\u003eCompatible FT160-series air leg subject to mounting and feed-length confirmation\u003c\/li\u003e\n\u003cli\u003e34–42 mm bit range subject to rock and drill-string match\u003c\/li\u003e\n\u003cli\u003e0.4–0.63 MPa working range; pressure and flow must be checked at the tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUnderground mine development\u003c\/li\u003e\n\u003cli\u003eTunnel advance drilling\u003c\/li\u003e\n\u003cli\u003eQuarry and civil rock excavation\u003c\/li\u003e\n\u003cli\u003eHorizontal and inclined air-leg drilling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy It Performs\u003c\/h2\u003e\n\u003cp\u003eThe percussion, rotation, flushing and air-leg feed systems operate together. Stable inlet pressure, correct lubrication, water flushing and controlled feed are necessary for repeatable penetration and drill-steel life.\u003c\/p\u003e\n\u003ch2\u003eQuality Checks\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eModel, casting and machined-part inspection\u003c\/li\u003e\n\u003cli\u003eControl, air and water passage check\u003c\/li\u003e\n\u003cli\u003eNo-load functional test and visible leakage inspection\u003c\/li\u003e\n\u003cli\u003eAccessory and packing verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMOQ and Delivery\u003c\/h2\u003e\n\u003cp\u003eSupply can be the drill body, drill-and-leg set, or complete package with lubricator, rods, bits and recommended spares. MOQ and lead time are confirmed by configuration and quantity.\u003c\/p\u003e\n\u003ch2\u003eBefore Quotation\u003c\/h2\u003e\n\u003cp\u003eProvide rock condition, hole diameter and depth, compressor specification, drilling direction, quantity and required supply scope.\u003c\/p\u003e\u003c\/section\u003e","brand":"PerfoMax","offers":[{"title":"Default Title","offer_id":45660727574735,"sku":"PFM-YT27","price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/Acc13eec67b7a4f6ca079da1d176ec92eg.webp?v=1785293963","url":"https:\/\/perfomaxdrill.com\/products\/yt27-air-leg-pneumatic-rock-drill","provider":" PerfoMax","version":"1.0","type":"link"}