{"title":"Air-Leg Rock Drills","description":"\u003cdiv class=\"perfomax-collection-content\" data-page-owner=\"air-leg-rock-drills\"\u003e\n  \u003cp\u003eAir-leg rock drills combine a compressed-air percussion drill with a supporting air leg for sustained horizontal or inclined drilling. This collection helps mining, tunneling, quarrying and contracting teams narrow the choice between the YT24 family, YT27, YT28 and YT29A before requesting a configuration-matched quotation. Use it to compare verified model references and prepare the drilling, air-supply and tooling information needed for technical review. Final suitability still depends on the exact model or suffix, rock conditions, hole size and depth, drilling direction, air and water supply, drill steel, bit and complete supply scope.\u003c\/p\u003e\n\n  \u003ch2\u003eChoose by job condition\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStart with the exact identity.\u003c\/strong\u003e If the marking only says YT24, first confirm whether the drill is YT24C, TY24 or another supplier-specific configuration.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDefine the hole.\u003c\/strong\u003e Send the target diameter, depth and drilling direction. Do not choose from the model name alone.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCheck available air at the work area.\u003c\/strong\u003e State pressure and flow, the number of drills running together, hose inside diameter and hose length.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMatch the support and tooling.\u003c\/strong\u003e Confirm the complete air-leg suffix, mounting interface, H22 drill-steel shank, bit connection, oiler and water-flushing arrangement.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeparate the drill body from the supply package.\u003c\/strong\u003e Air leg, lubricator, hose, couplings, drill steel, bits and spare parts are included only when listed in the written quotation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003cfigure\u003e\n    \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/air-leg-rock-drill-rfq-yt28.jpg?v=1786766628\" alt=\"Blue air-leg pneumatic rock drill mounted on a support frame against a white background\" loading=\"lazy\" width=\"480\" height=\"480\"\u003e\n    \u003cfigcaption\u003eUse the model comparison below as a starting point, then confirm the complete drill, air-leg, tooling and air-system configuration before quotation.\u003c\/figcaption\u003e\n  \u003c\/figure\u003e\n\n  \u003ch2\u003eYT24, YT27, YT28 and YT29A comparison\u003c\/h2\u003e\n  \u003cp\u003eThe table uses only fields that are currently traceable on the corresponding PerfoMax product pages. A blank universal value is not replaced with an estimate.\u003c\/p\u003e\n  \u003cdiv class=\"table-wrapper\" style=\"max-width:100%; overflow-x:auto; -webkit-overflow-scrolling:touch;\"\u003e\n    \u003ctable style=\"min-width:760px; width:100%;\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eIdentity \/ weight reference\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eShank reference\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eDrilling diameter\u003c\/th\u003e\n          \u003cth scope=\"col\"\u003eAir reference\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\"\u003eYT24 family\u003c\/th\u003e\n          \u003ctd\u003eConfirm YT24C or TY24; the family code alone is not an orderable configuration\u003c\/td\u003e\n          \u003ctd\u003eH22 × 108 class; confirm for the selected suffix\u003c\/td\u003e\n          \u003ctd\u003eConfirm from the exact model data sheet\u003c\/td\u003e\n          \u003ctd\u003eConfirm from the exact model data sheet\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\"\u003eYT27\u003c\/th\u003e\n          \u003ctd\u003e27 kg\u003c\/td\u003e\n          \u003ctd\u003eH22 × 108 mm\u003c\/td\u003e\n          \u003ctd\u003eConfirm in quotation; current references differ between 34–42 and 34–45 mm\u003c\/td\u003e\n          \u003ctd\u003e0.4–0.63 MPa working-pressure reference; confirm final flow requirement\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\"\u003eYT28\u003c\/th\u003e\n          \u003ctd\u003e26 kg\u003c\/td\u003e\n          \u003ctd\u003eH22 × 108 mm\u003c\/td\u003e\n          \u003ctd\u003e34–42 mm\u003c\/td\u003e\n          \u003ctd\u003e≤55 L\/s at 0.50 MPa; ≤81 L\/s at 0.63 MPa\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth scope=\"row\"\u003eYT29A\u003c\/th\u003e\n          \u003ctd\u003e26.5–27 kg by cited supplier\u003c\/td\u003e\n          \u003ctd\u003eH22 × 108 mm\u003c\/td\u003e\n          \u003ctd\u003e34–45 mm\u003c\/td\u003e\n          \u003ctd\u003e≤65 L\/s at 0.50 MPa; ≤88 L\/s at 0.63 MPa\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cp\u003e\u003csmall\u003eReference values support preliminary matching only. The written quotation and its attached supplier data sheet control the supplied configuration.\u003c\/small\u003e\u003c\/p\u003e\n\n  \u003ch2\u003eOpen the correct model page\u003c\/h2\u003e\n  \u003ch3\u003eYT24 family: identify the suffix first\u003c\/h3\u003e\n  \u003cp\u003eUse the \u003ca href=\"\/products\/yt24-air-leg-pneumatic-rock-drill\"\u003eYT24-family inquiry page\u003c\/a\u003e when the existing unit or request is labelled YT24. Send the nameplate and clear photos if you cannot confirm YT24C or TY24. No model-specific quotation should use “YT24” as the only identity.\u003c\/p\u003e\n\n  \u003ch3\u003eYT27: documented FT160A and FY250 pairing\u003c\/h3\u003e\n  \u003cp\u003eThe \u003ca href=\"\/products\/yt27-pneumatic-air-leg-rock-drill\"\u003eYT27 product page\u003c\/a\u003e records a 27 kg drill body, H22 × 108 mm shank and 0.4–0.63 MPa working-pressure reference. FT160A and FY250 are documented pairings. Confirm the target hole diameter because current model-level references do not publish one fully consistent range.\u003c\/p\u003e\n\n  \u003ch3\u003eYT28: 34–42 mm reference configuration\u003c\/h3\u003e\n  \u003cp\u003eThe \u003ca href=\"\/products\/yt28-air-leg-rock-drill-34-42mm\"\u003eYT28 product page\u003c\/a\u003e provides a 26 kg, H22 × 108 mm, 34–42 mm reference configuration and pressure-specific air-consumption figures. Use the final supplier data sheet to confirm the air leg, hose, oiler, water connection and operating setup.\u003c\/p\u003e\n\n  \u003ch3\u003eYT29A: 34–45 mm reference configuration\u003c\/h3\u003e\n  \u003cp\u003eThe \u003ca href=\"\/products\/yt29a-air-leg-rock-drill-34-45mm\"\u003eYT29A product page\u003c\/a\u003e provides a 26.5–27 kg, H22 × 108 mm and 34–45 mm reference configuration. Its documented air-consumption references are higher than the current YT28 references at both 0.50 and 0.63 MPa, so compressor and hose capacity must be checked rather than assumed.\u003c\/p\u003e\n\n  \u003ch2\u003eMatch the complete drilling system\u003c\/h2\u003e\n  \u003cp\u003eAn air-leg rock drill is only one part of the operating system. Confirm each item below as a chain rather than buying by family name:\u003c\/p\u003e\n  \u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRock drill:\u003c\/strong\u003e exact model, suffix, supplier and controlled data-sheet revision.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAir leg:\u003c\/strong\u003e complete FT160\/FT170 suffix, collapsed and extended dimensions, feed stroke, mounting interface and approved drill pairing. \u003ca href=\"\/products\/ft160-series-pneumatic-air-legs-model-matching\"\u003eReview the FT160\/FT170 identification page\u003c\/a\u003e.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDrill steel and bit:\u003c\/strong\u003e confirm the H22 × 108 shank where applicable, drill-steel length, bit connection and target hole diameter. Shank size alone does not define the complete tooling combination.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAir hose and couplings:\u003c\/strong\u003e size for required flow, hose length and acceptable pressure loss; verify dynamic pressure at the tool inlet during operation.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLine oiler and water flushing:\u003c\/strong\u003e confirm the approved lubricator, oil requirement, water connection and site supply.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompressor:\u003c\/strong\u003e calculate from the selected drills running at the same time, then account for hose and fitting losses, leakage, altitude and operating margin.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eInformation to send for a configuration-matched RFQ\u003c\/h2\u003e\n  \u003cp\u003eSend the following in one message so the response can move beyond a generic model recommendation:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eNew purchase, replacement or spare-parts requirement; include the existing nameplate and full model suffix if applicable.\u003c\/li\u003e\n    \u003cli\u003eApplication, rock condition if known, and drilling orientation.\u003c\/li\u003e\n    \u003cli\u003eTarget hole diameter, hole depth and expected drill-steel length.\u003c\/li\u003e\n    \u003cli\u003eNumber of drills operating at the same time.\u003c\/li\u003e\n    \u003cli\u003eAvailable compressed-air pressure and flow, measured location, hose inside diameter and hose length.\u003c\/li\u003e\n    \u003cli\u003eExisting or required air-leg model and suffix, mounting\/interface photos and available working space.\u003c\/li\u003e\n    \u003cli\u003eRequired drill steel, bits, hose, couplings, oiler, water-flushing items and spare parts.\u003c\/li\u003e\n    \u003cli\u003eQuantity, destination, required inspection documents, packing needs and requested delivery window.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003cp\u003e\u003ca href=\"\/pages\/contact\"\u003e\u003cstrong\u003eSend your air-leg rock drill configuration for review\u003c\/strong\u003e\u003c\/a\u003e. PerfoMax will identify missing inputs and return the proposed model and supply scope for confirmation.\u003c\/p\u003e\n\n  \u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n  \u003ch3\u003eWhich model should I choose?\u003c\/h3\u003e\n  \u003cp\u003eStart with the exact model identity, target hole diameter and depth, drilling direction, air supply and required air leg. The four model names do not replace a configuration review.\u003c\/p\u003e\n\n  \u003ch3\u003eIs the air leg included with the rock drill?\u003c\/h3\u003e\n  \u003cp\u003eNot by assumption. The written quotation must state the drill body, exact air-leg suffix and every included accessory. A family name such as FT160 is not enough to confirm fit.\u003c\/p\u003e\n\n  \u003ch3\u003eCan one compressor run several drills?\u003c\/h3\u003e\n  \u003cp\u003eOnly after checking the combined air demand of all drills that will run simultaneously and the pressure available at each tool inlet. Hose length, internal diameter, fittings, leakage and altitude can materially change the result.\u003c\/p\u003e\n\n  \u003ch3\u003eDoes H22 × 108 mean the drill steels and bits are interchangeable?\u003c\/h3\u003e\n  \u003cp\u003eNo. It identifies a shank reference, not the complete drill string. Confirm the exact drill model, steel length, taper or bit connection, bit diameter and supplier drawing before substitution.\u003c\/p\u003e\n\n  \u003ch3\u003eCan I replace YT24, YT27, YT28 or YT29A with another model directly?\u003c\/h3\u003e\n  \u003cp\u003eDo not substitute by similar model name. Compare the required hole, air demand, drill and air-leg interface, hose and oiler arrangement, tooling and the complete quoted configuration.\u003c\/p\u003e\n\n  \u003ch2\u003eRelated selection guides\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-selection-guide\"\u003eHow to Choose an Air-Leg Rock Drill for Underground Mining\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt28-air-compressor-sizing-pressure-flow-hose\"\u003eYT28 Air Compressor Sizing: Flow, Pressure, Hose and Multi-Drill Demand\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/ft160-air-leg-yt28-yt29a-compatibility-guide\"\u003eFT160 Air Leg Compatibility: Match the Exact Suffix\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-rfq-checklist\"\u003eAir-Leg Rock Drill RFQ Checklist\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt-rock-drill-air-demand-mixed-fleet-compressor-sizing\"\u003eMixed-Fleet Compressor Sizing for YT Rock Drills\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-installation-setup-diagram\"\u003eAir-Leg Rock Drill Installation \u0026amp; Setup Diagram\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt-series-rock-drill-maintenance-checklist\"\u003eYT-Series Rock Drill Maintenance Checklist\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/identify-yt24-yt27-yt28-yt29a-rock-drill\"\u003eHow to Identify YT24, YT27, YT28 or YT29A\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n","products":[{"product_id":"yt29a-air-leg-rock-drill-34-45mm","title":"YT29A Air-Leg Pneumatic Rock Drill for 34–45 mm Holes","description":"\u003cdiv class=\"perfomax-product-content\"\u003e\n\u003cp\u003eThis page uses a cross-checked YT29A reference configuration for preliminary matching. It does not claim that every supplier’s YT29A is identical; the final quotation controls.\u003c\/p\u003e\n\u003ch2\u003eWhat is confirmed on this page\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReference weight: 26.5–27 kg by cited supplier\u003c\/li\u003e\n\u003cli\u003eReference length: 659 mm\u003c\/li\u003e\n\u003cli\u003eReference cylinder\/stroke: 82 × 60 mm\u003c\/li\u003e\n\u003cli\u003eReference impact frequency: ≥37 Hz at 0.50 MPa and ≥39 Hz at 0.63 MPa\u003c\/li\u003e\n\u003cli\u003eReference air consumption: ≤65 L\/s at 0.50 MPa and ≤88 L\/s at 0.63 MPa\u003c\/li\u003e\n\u003cli\u003eH22 × 108 shank and 34–45 mm hole range\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConfirm before quotation or substitution\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuoted manufacturer and data-sheet revision\u003c\/li\u003e\n\u003cli\u003eActual test pressure for performance values\u003c\/li\u003e\n\u003cli\u003eApproved air leg, oiler, hose and water connection\u003c\/li\u003e\n\u003cli\u003eSupplier name and controlled drawing or data-sheet revision\u003c\/li\u003e\n\u003cli\u003eExact model, interface and ordered configuration\u003c\/li\u003e\n\u003cli\u003ePer-variant dimensions, tolerance and unit weight\u003c\/li\u003e\n\u003cli\u003eInspection scope, packaging, origin, HS classification and commercial terms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety and operating boundary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCommercial response, inspection scope, service life and productivity are defined only for the quoted configuration and conditions\u003c\/li\u003e\n\u003cli\u003eOperate and maintain only to the supplied manual and site risk assessment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuotation basis\u003c\/h2\u003e\n\u003cp\u003eThe written quotation and its attached drawing\/data sheet control the supplied configuration. Website images and reference figures do not replace that document.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eTechnical review basis: \u003ca href=\"https:\/\/www.rock-drills.com\/pneumatic_rock_drills_jack_hammer\/102.html\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 1\u003c\/a\u003e · \u003ca href=\"https:\/\/www.y-sld.com\/yt29a-air-leg-rock-drill-product\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 2\u003c\/a\u003e · \u003ca href=\"https:\/\/www.y-sld.com\/yt24-hammer-pneumatic-rock-drill-drilling-product\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 3\u003c\/a\u003e. These sources are used to check industry terminology and ranges; they do not identify the final supplier batch.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"pm-commercial-guide-links\" data-pm-seo-commercial-guides=\"v1\" aria-labelledby=\"pm-product-guides-heading\"\u003e\n  \u003ch2 id=\"pm-product-guides-heading\"\u003eSelection \u0026amp; Technical Guides\u003c\/h2\u003e\n  \u003cp\u003eUse these guides to confirm compatibility, operating inputs, inspection points, and RFQ details before ordering this product.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt28-vs-yt29a-air-leg-rock-drill\"\u003eYT28 vs YT29A Air-Leg Rock Drill: Hole Size, Air Demand, and Selection\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/ft160-air-leg-yt28-yt29a-compatibility-guide\"\u003eFT160 Air Leg Compatibility Guide: Match the Right Suffix to YT28 or YT29A\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-selection-guide\"\u003eHow to Choose an Air-Leg Rock Drill for Underground Mining\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-rfq-checklist\"\u003eAir-Leg Rock Drill RFQ Checklist: 15 Specs Buyers Should Confirm Before Ordering\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/pneumatic-rock-drill-pre-shipment-inspection\"\u003ePneumatic Rock Drill Pre-Shipment Inspection: Buyer Acceptance Checklist\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n","brand":"PerfoMax","offers":[{"title":"Default Title","offer_id":45619081314511,"sku":"PFM-YT29A","price":0.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/yt29a-air-leg-rock-drill.jpg?v=1784716310"},{"product_id":"yt28-air-leg-rock-drill-34-42mm","title":"YT28 Air-Leg Pneumatic Rock Drill for 34–42 mm Holes","description":"\u003cdiv class=\"perfomax-product-content\"\u003e\n\u003cp\u003eThis page uses a cross-checked YT28 reference configuration for preliminary system matching. The final quotation must attach the actual supplier data sheet and approved air-leg combination.\u003c\/p\u003e\n\u003ch2\u003eWhat is confirmed on this page\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eReference weight: 26 kg\u003c\/li\u003e\n\u003cli\u003eReference length: 661 mm\u003c\/li\u003e\n\u003cli\u003eReference cylinder\/stroke: 80 × 60 mm\u003c\/li\u003e\n\u003cli\u003eManual reference impact frequency: ≥34 Hz at 0.50 MPa and ≥36 Hz at 0.63 MPa\u003c\/li\u003e\n\u003cli\u003eManual reference air consumption: ≤55 L\/s at 0.50 MPa and ≤81 L\/s at 0.63 MPa\u003c\/li\u003e\n\u003cli\u003eH22 × 108 shank and 34–42 mm hole range\u003c\/li\u003e\n\u003cli\u003eAir-leg pairing must follow the quoted supplier manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConfirm before quotation or substitution\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eQuoted manufacturer and revision\u003c\/li\u003e\n\u003cli\u003eActual test pressure for all performance values\u003c\/li\u003e\n\u003cli\u003eSelected air-leg suffix, hose, oiler and water connection\u003c\/li\u003e\n\u003cli\u003eSupplier name and controlled drawing or data-sheet revision\u003c\/li\u003e\n\u003cli\u003eExact model, interface and ordered configuration\u003c\/li\u003e\n\u003cli\u003ePer-variant dimensions, tolerance and unit weight\u003c\/li\u003e\n\u003cli\u003eInspection scope, packaging, origin, HS classification and commercial terms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSafety and operating boundary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOperate only with the approved air leg and matched drill string\u003c\/li\u003e\n\u003cli\u003eWet drilling, lubrication, hose restraint and PPE follow the supplied manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuotation basis\u003c\/h2\u003e\n\u003cp\u003eThe written quotation and its attached drawing\/data sheet control the supplied configuration. Website images and reference figures do not replace that document.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eTechnical review basis: \u003ca href=\"https:\/\/irtechpubs.com\/ir_pdfs\/Tools\/Construction\/Rock%20Drills\/80192115_ed2.pdf\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 1\u003c\/a\u003e · \u003ca href=\"https:\/\/m.y-sld.com\/yt28-air-leg-rock-drill-product\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 2\u003c\/a\u003e · \u003ca href=\"https:\/\/www.y-sld.com\/yt24-hammer-pneumatic-rock-drill-drilling-product\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003esource 3\u003c\/a\u003e. These sources are used to check industry terminology and ranges; they do not identify the final supplier batch.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003eFor comparison with other published hand-held and air-leg models, review the \u003ca href=\"\/collections\/rock-drills\"\u003eRock Drills Collection\u003c\/a\u003e before final system matching.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003csection class=\"pm-commercial-guide-links\" data-pm-seo-commercial-guides=\"v1\" aria-labelledby=\"pm-product-guides-heading\"\u003e\n  \u003ch2 id=\"pm-product-guides-heading\"\u003eSelection \u0026amp; Technical Guides\u003c\/h2\u003e\n  \u003cp\u003eUse these guides to confirm compatibility, operating inputs, inspection points, and RFQ details before ordering this product.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt24-vs-yt28-air-leg-rock-drill\"\u003eYT24 vs YT28 Air-Leg Rock Drill: Air Demand, Hole Size, and Selection\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt28-vs-yt29a-air-leg-rock-drill\"\u003eYT28 vs YT29A Air-Leg Rock Drill: Hole Size, Air Demand, and Selection\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt28-air-compressor-sizing-pressure-flow-hose\"\u003eYT28 Air Compressor Sizing Guide: Flow, Pressure, Hose and Multi-Drill Demand\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt28-rock-drill-troubleshooting-slow-drilling-low-power\"\u003eYT28 Rock Drill Troubleshooting: Slow Drilling, Low Power, and Hard Starting\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-rfq-checklist\"\u003eAir-Leg Rock Drill RFQ Checklist: 15 Specs Buyers Should Confirm Before Ordering\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"PerfoMax","offers":[{"title":"Default Title","offer_id":45619086524623,"sku":"PFM-YT28","price":0.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/yt28-rock-drill.jpg?v=1784717694"},{"product_id":"yt24-air-leg-pneumatic-rock-drill","title":"YT24-Series Air-Leg Rock Drill — Confirm YT24C or TY24","description":"\u003cdiv class=\"perfomax-product-content\"\u003e\n\u003cp\u003eYT24C and TY24 are materially different configurations even though both appear under YT24-family naming. This page is a model-identification and quotation entry point, not a single orderable model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConfiguration identity:\u003c\/strong\u003e PFM-YT24 is a family inquiry reference, not an orderable model. Choose YT24C, TY24 or “Not sure — identification required.” If the exact suffix is not known, send the nameplate or marking and photos of the chuck or shank, mounting or air-leg interface, and hose, oiler and water connections. No model-specific quotation can be technically approved until the suffix, supplied shank, air-leg or feed interface, air requirement, accessories and spares, controlled data-sheet revision and approved configuration ID are confirmed.\u003c\/p\u003e\n\u003ch2\u003eCurrent inquiry scope\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFamily reference: YT24.\u003c\/li\u003e\n\u003cli\u003eCurrent drill-steel reference: H22 × 108 class; the final shank must be confirmed for the selected suffix from the controlled model data sheet.\u003c\/li\u003e\n\u003cli\u003eThe exact suffix or identification-required state must be recorded.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eModel-identification states\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYT24C\u003c\/th\u003e\n\u003ctd\u003eBuyer-selected model state; technical review and one approved configuration ID are still required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTY24\u003c\/th\u003e\n\u003ctd\u003eBuyer-selected model state; technical review and one approved configuration ID are still required.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNot sure — identification required\u003c\/th\u003e\n\u003ctd\u003eIdentification inquiry only; model-specific technical quotation remains blocked.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eInformation to send\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eNameplate, model marking and clear photos of the drill body.\u003c\/li\u003e\n\u003cli\u003eChuck or shank, drill steel and bit details.\u003c\/li\u003e\n\u003cli\u003eAir-leg or feed model, mounting interface and photos or drawing.\u003c\/li\u003e\n\u003cli\u003eSite air pressure and flow, hose, oiler, water or flushing arrangement.\u003c\/li\u003e\n\u003cli\u003eRequired accessories, spares, quantity, destination and acceptance requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuotation and configuration boundary\u003c\/h2\u003e\n\u003cp\u003eChoosing YT24C or TY24 is a buyer statement, not a supplied-product fact. The technical review must confirm the exact suffix, interface chain, supply scope and controlled data-sheet revision and then return one approved configuration ID. PFM-YT24 must not enter a quotation or purchase order as the only model identity.\u003c\/p\u003e\n\u003cp\u003eFor adjacent published models and broader format comparison, review the \u003ca href=\"\/collections\/rock-drills\"\u003eRock Drills Collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003csection class=\"pm-commercial-guide-links\" data-pm-seo-commercial-guides=\"v1\" aria-labelledby=\"pm-product-guides-heading\"\u003e\n\u003ch2 id=\"pm-product-guides-heading\"\u003eSelection \u0026amp; Technical Guides\u003c\/h2\u003e\n\u003cp\u003eUse these guides to prepare model-identification and operating questions; they do not establish a supplied YT24C or TY24 configuration.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/yt24-vs-yt28-air-leg-rock-drill\"\u003eYT24 vs YT28 Air-Leg Rock Drill: Air Demand, Hole Size, and Selection\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-selection-guide\"\u003eHow to Choose an Air-Leg Rock Drill for Underground Mining\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/pneumatic-rock-drill-anatomy-working-principle\"\u003ePneumatic Rock Drill Anatomy: How the Piston, Valve, Rifle Bar, Chuck, and Flushing Work\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/air-leg-rock-drill-rfq-checklist\"\u003eAir-Leg Rock Drill RFQ Checklist: 15 Specs Buyers Should Confirm Before Ordering\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/technical-guides\/pneumatic-rock-drill-pre-shipment-inspection\"\u003ePneumatic Rock Drill Pre-Shipment Inspection: Buyer Acceptance Checklist\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"PerfoMax","offers":[{"title":"Default Title","offer_id":45660417491151,"sku":"PFM-YT24","price":0.0,"currency_code":"CNY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/Af76e6f477ed842cc9d20d17992562cc2s.webp?v=1785292362"},{"product_id":"yt27-pneumatic-air-leg-rock-drill","title":"YT27 Pneumatic Air-leg Rock Drill","description":"\u003cdiv class=\"perfomax-product-content\"\u003e\n\u003cp\u003e\u003cstrong\u003eYT27 Pneumatic Air-leg Rock Drill\u003c\/strong\u003e is a compressed-air pusher-leg rock drill for mining, tunneling and other rock-drilling work. The figures below are limited to YT27 fields that can be traced to the locked Registry identity and corroborated model-level supplier\/manufacturer references. Where current YT27 sources disagree, the exact value is not hard-coded and the final written quotation controls the delivered configuration.\u003c\/p\u003e\n\u003ch2\u003eWhy this model is used\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAir-leg pneumatic format for sustained horizontal or inclined rock drilling\u003c\/li\u003e\n\u003cli\u003eH22 × 108 mm documented shank size\u003c\/li\u003e\n\u003cli\u003e27 kg reference drill-body weight and 668 mm reference length\u003c\/li\u003e\n\u003cli\u003e0.4–0.63 MPa documented working-air-pressure range\u003c\/li\u003e\n\u003cli\u003e80 mm cylinder diameter and 60 mm piston stroke\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eConfirmed reference specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eYT27\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTool type\u003c\/th\u003e\n\u003ctd\u003eAir-leg pneumatic rock drill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003e27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExternal dimensions (L × W × H)\u003c\/th\u003e\n\u003ctd\u003e668 × 248 × 202 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eShank size\u003c\/th\u003e\n\u003ctd\u003eH22 × 108 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCylinder diameter\u003c\/th\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePiston stroke\u003c\/th\u003e\n\u003ctd\u003e60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWorking air pressure\u003c\/th\u003e\n\u003ctd\u003e0.4–0.63 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAir pipe inner diameter\u003c\/th\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater pipe inner diameter\u003c\/th\u003e\n\u003ctd\u003e13 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpact energy\u003c\/th\u003e\n\u003ctd\u003e≥70 J at 0.63 MPa; ≥64 J at 0.5 MPa; ≥48 J at 0.4 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eImpact frequency\u003c\/th\u003e\n\u003ctd\u003e≥40 Hz at 0.63 MPa; ≥39 Hz at 0.5 MPa; ≥37 Hz at 0.4 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReference maximum drilling depth\u003c\/th\u003e\n\u003ctd\u003e5 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDocumented support equipment\u003c\/th\u003e\n\u003ctd\u003eFT160A air leg; FY250 lubricator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDrilling diameter\u003c\/th\u003e\n\u003ctd\u003eConfirm in quotation — current YT27 supplier references differ between 34–42 mm and 34–45 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003eExact drilling diameter is intentionally quotation-controlled because current model-level supplier references are not fully consistent. Air-consumption and water-pressure figures are also left out of the fixed specification table until the selected supply configuration is confirmed.\u003c\/small\u003e\u003c\/p\u003e\n\u003ch2\u003eTypical applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMine development and blast-hole drilling\u003c\/li\u003e\n\u003cli\u003eTunnel excavation and rock drilling\u003c\/li\u003e\n\u003cli\u003eWet drilling in medium-hard to hard rock\u003c\/li\u003e\n\u003cli\u003eHorizontal and inclined drilling where an air-leg support arrangement is appropriate\u003c\/li\u003e\n\u003cli\u003eQuarry and construction rock-drilling work where site conditions match the selected configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eActual suitability depends on rock conditions, target hole diameter and depth, drilling direction, available compressed-air supply, water supply and the complete drill-steel\/bit configuration.\u003c\/p\u003e\n\u003ch2\u003eCompatibility and ordering checks\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the required rock-drill shank is H22 × 108 mm.\u003c\/li\u003e\n\u003cli\u003eConfirm drill steel and bit geometry separately; shank size alone does not define the complete taper or tooling combination.\u003c\/li\u003e\n\u003cli\u003eFT160A is a documented YT27 air-leg pairing. Other air-leg variants should be confirmed against the quoted drill configuration before ordering.\u003c\/li\u003e\n\u003cli\u003eFY250 is a documented lubricator pairing; confirm whether it is included in the requested supply scope.\u003c\/li\u003e\n\u003cli\u003eConfirm target hole diameter and depth because current YT27 supplier references do not publish one fully consistent diameter range.\u003c\/li\u003e\n\u003cli\u003eConfirm compressor working pressure and air-flow capacity against the final supplier data sheet.\u003c\/li\u003e\n\u003cli\u003eDo not substitute YT24, YT28, YT29A or another Y-series model by name similarity alone.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSupply scope\u003c\/h2\u003e\n\u003cp\u003eDo not assume the drill body, air leg, lubricator, drill steel, bit, hose, couplers or spare parts are bundled together. The written quotation should itemize the exact drill body, air-leg model, lubricator, tooling and requested accessories.\u003c\/p\u003e\n\u003ch2\u003eQuality and inspection\u003c\/h2\u003e\n\u003cp\u003eFor the RFQ or inspection plan, specify the checks relevant to the order: YT27 model marking, external condition, H22 × 108 mm shank\/interface, air and water connections, selected air-leg model, lubricator, operating check, leakage check, requested accessories and packing-list consistency. Agreed inspection requirements should be written into the quotation or order documents.\u003c\/p\u003e\n\u003ch2\u003eMOQ, lead time and packaging\u003c\/h2\u003e\n\u003cp\u003ePerfoMax MOQ and lead time are confirmed in the written quotation for the selected YT27 configuration. Packaging method, corrosion protection, shipping marks, air-leg packing, lubricator packing and spare-parts packing should also be confirmed before order release.\u003c\/p\u003e\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhat shank does this YT27 use?\u003c\/h3\u003e\n\u003cp\u003eThe controlled YT27 reference is H22 × 108 mm. Confirm the drill steel, bit connection and complete tooling match before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat working air pressure should I use for preliminary matching?\u003c\/h3\u003e\n\u003cp\u003eThe corroborated model-level reference range is 0.4–0.63 MPa. Compressor flow capacity and the final operating setup still need to be checked against the selected supplier data sheet.\u003c\/p\u003e\n\u003ch3\u003eWhat hole diameter does the YT27 drill?\u003c\/h3\u003e\n\u003cp\u003eCurrent model-level sources are not fully consistent: Realon lists 34–42 mm, while Good Drill and independent YT27 literature list 34–45 mm. PerfoMax therefore confirms the applicable diameter in the written quotation rather than treating one range as universal.\u003c\/p\u003e\n\u003ch3\u003eWhich air leg and lubricator are documented for YT27?\u003c\/h3\u003e\n\u003cp\u003eFT160A and FY250 are documented YT27 pairings across multiple model-level references. If another air-leg model is required, confirm compatibility in the quotation before ordering.\u003c\/p\u003e\n\u003ch3\u003eAre the air leg, drill rods and bits included?\u003c\/h3\u003e\n\u003cp\u003eNot by assumption. The quotation should explicitly list the drill body, air leg, lubricator and every requested drill steel, bit, hose, coupler or spare part.\u003c\/p\u003e\n\u003ch3\u003eWhat should I send for a quotation?\u003c\/h3\u003e\n\u003cp\u003eSend the application, rock condition if known, target hole diameter and depth, drilling direction, available compressed-air and water supply, required tooling, quantity, destination and any inspection or packaging requirements.\u003c\/p\u003e\n\u003ch2\u003eRelated products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/yt28-air-leg-rock-drill-34-42mm\"\u003eYT28 Air-Leg Pneumatic Rock Drill\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/y19a-hand-held-pneumatic-rock-drill\"\u003eY19A Hand-Held Pneumatic Rock Drill\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003eRelated links are for product comparison and navigation; they do not imply parts, performance or accessory interchangeability.\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003eFor a broader comparison across published hand-held and air-leg models, review the \u003ca href=\"\/collections\/rock-drills\"\u003eRock Drills Collection\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eRequest a quote\u003c\/h2\u003e\n\u003cp\u003eFor a configuration-matched YT27 quotation, provide the application, rock condition, target hole size and depth, available compressed-air supply, required air leg and lubricator, tooling, quantity and destination. PerfoMax will return the quoted supply scope and order-specific commercial terms for confirmation.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eTechnical review basis: \u003ca href=\"https:\/\/tjgooddrill.com\/product\/pneumatic-rock-drill-for-mining\/\" rel=\"nofollow noopener\" target=\"_blank\"\u003eGood Drill YT27 model table\u003c\/a\u003e · \u003ca href=\"https:\/\/www.tjrealon.com\/yt27-rock-drill-efficient-flexible-durable-and-versatile-helping-mines-tunnels-and-construction-projects-to-operate-efficiently\" rel=\"nofollow noopener\" target=\"_blank\"\u003eRealon YT27 model page\u003c\/a\u003e · \u003ca href=\"https:\/\/www.sanshanrocktools.com\/wp-content\/uploads\/2024\/11\/Pneumatic-rock-drill-YT27.pdf\" rel=\"nofollow noopener\" target=\"_blank\"\u003eindependent YT27 technical literature\u003c\/a\u003e.\u003c\/small\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"PerfoMax","offers":[{"title":"Default Title","offer_id":45757137060047,"sku":"PM-RD-003","price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/files\/perfomax-yt27-white-bg-v1_ec6aaf27-cdd3-4cb2-bca8-898f73345e11.jpg?v=1787367882"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/9308\/9999\/collections\/pm-img-009-yt29a-overseas-application_16ad1219-d3de-44ee-8a7f-1d4a644238bf.png?v=1788407877","url":"https:\/\/perfomaxdrill.com\/collections\/air-leg-rock-drills.oembed","provider":" PerfoMax","version":"1.0","type":"link"}