{"id":14123,"date":"2026-07-06T10:00:00","date_gmt":"2026-07-06T08:00:00","guid":{"rendered":"https:\/\/www.kemroc.com\/?p=14123"},"modified":"2026-07-01T14:07:09","modified_gmt":"2026-07-01T12:07:09","slug":"how-a-kemroc-kr-120-rotary-drum-cutter-increased-trenching-productivity-in-70-mpa-limestone-in-dubai","status":"publish","type":"post","link":"https:\/\/kemroc.com\/staging\/how-a-kemroc-kr-120-rotary-drum-cutter-increased-trenching-productivity-in-70-mpa-limestone-in-dubai\/","title":{"rendered":"How a KEMROC\u00a0KR 120 Rotary Drum Cutter Increased Trenching Productivity in 70 MPa Limestone in Dubai.\u00a0"},"content":{"rendered":"

KEMROC\u00a0KR\u00a0120\u00a0Rotary Drum\u00a0Cutter\u00a0in\u00a0Trenching<\/a>\u00a0Project.\u00a0
Mounted on\u00a0Kobleco\u00a0SK350\u00a0|\u00a0Cutting\u00a0Hard\u00a0Limestone\u00a0in\u00a0Dubai,\u00a0United Arab Emirates.\u00a0<\/em><\/p>\n\n\n\n

\"KR<\/figure>\n\n\n\n

Project Overview<\/strong> <\/h4>\n\n\n\n

When contractors face trenching projects in hard limestone, productivity, precision, and cost control become critical success factors. On a major infrastructure project in Dubai<\/a>, United Arab Emirates, a contractor selected the\u00a0KEMROC KR 120 Rotary Drum Cutter<\/a><\/strong>\u00a0mounted on a\u00a0Kobelco SK350<\/a> excavator<\/strong>\u00a0to excavate trenches through limestone with a compressive strength of\u00a070 MPa (10,153 psi)<\/strong>.\u00a0<\/p>\n\n\n\n

The project required the excavation of trenches measuring approximately 6,500 mm in length, 1,400 mm in width, and 5,000 mm in depth<\/strong>, presenting significant challenges for conventional excavation methods. <\/p>\n\n\n\n

Why the Contractor Chose KEMROC?<\/strong> <\/h4>\n\n\n\n

The contractor’s primary reason for selecting KEMROC over alternative solutions was simple: higher productivity<\/strong>. <\/p>\n\n\n\n

Traditional methods often generate excessive vibration, overbreak, and large quantities of unsuitable excavation material. By contrast, the KEMROC KR 120 hydraulic drum cutter<\/strong> provided controlled excavation, enabling the contractor to achieve precise trench dimensions while maintaining continuous production over several months of operation. <\/p>\n\n\n\n

\"KEMROC\u00a0KR\u00a0120\u00a0Rotary<\/figure>\n\n\n\n

Reliable Performance in Hard Rock Conditions<\/strong> <\/h4>\n\n\n\n

Equipped with durable\u00a0round attack picks<\/strong>, the KR 120 rotary drum cutter\u00a0demonstrated\u00a0exceptional efficiency while excavating through challenging limestone formations. Pick consumption averaged only\u00a0four picks per 100 cubic meters<\/strong>, highlighting the durability and cost-effectiveness of the KEMROC solution.\u00a0<\/p>\n\n\n\n

As a high-performance\u00a0rotary drum cutter<\/a><\/strong>, the KR 120 delivered smooth and controlled rock excavation, making it an ideal\u00a0trenching drum cutter<\/strong>\u00a0for demanding infrastructure applications.\u00a0<\/p>\n\n\n\n

Valuable Reusable Backfill Material<\/strong> <\/h4>\n\n\n\n

One of the most significant advantages achieved on this project was the production of high-quality fine excavation material. <\/p>\n\n\n\n

Unlike conventional breaking methods that create oversized and irregular rock fragments, the\u00a0drum cutter attachment<\/a><\/strong>\u00a0generated fine, reusable backfill material directly during excavation. This reduced the need to import\u00a0additional\u00a0backfill, lowered transportation costs, and minimized waste disposal requirements.\u00a0For contractors working on utility corridors,\u00a0pump station construction<\/strong>,\u00a0manhole\u00a0construction<\/strong>,\u00a0precast\u00a0manhole<\/strong>\u00a0installations, and other infrastructure developments, this benefit can create\u00a0substantial\u00a0project savings.\u00a0<\/p>\n\n\n\n

\"KEMROC\u00a0KR\u00a0120\u00a0Rotary<\/figure>\n\n\n\n

Versatility Beyond Trenching<\/strong> <\/h4>\n\n\n\n

The KR 120 belongs to KEMROC’s proven family of\u00a0drum cutters<\/strong>, widely used for\u00a0deep excavation<\/strong>,\u00a0shaft excavation<\/strong>,\u00a0shaft sinking<\/strong>, concrete renovation, and controlled demolition applications<\/a>.\u00a0<\/p>\n\n\n\n

KEMROC\u00a0excavator drum cutters<\/strong>\u00a0are\u00a0frequently\u00a0selected for projects requiring precision rock removal, including applications involving\u00a0excavator rock cutter<\/strong>\u00a0operations,\u00a0drum cutter for surface profiling<\/strong>,\u00a0transverse drum cutter<\/strong>\u00a0work, and specialized excavation projects. Similar technology is also used in\u00a0underwater drum cutter attachment<\/a><\/strong>\u00a0applications and as an\u00a0excavator drum cutter for mining<\/a><\/strong>\u00a0where controlled material removal is essential.\u00a0<\/p>\n\n\n\n

Conclusion<\/strong> <\/h4>\n\n\n\n

This project in Dubai demonstrates how the KEMROC KR 120 high-torque drum cutter attachment<\/strong> helped the contractor achieve superior trenching productivity while producing valuable reusable backfill material in extremely hard limestone conditions. <\/p>\n\n\n\n

For contractors seeking a reliable\u00a0drum cutter excavator<\/strong>\u00a0solution capable of increasing productivity, reducing operating costs, and improving excavation quality, the KEMROC KR 120 Rotary Drum cutter continues to prove why it is one of the industry’s leading\u00a0rotary drum cutter<\/strong>\u00a0technologies.\u00a0<\/p>\n\n\n\n

\"KEMROC\u00a0KR\u00a0120\u00a0Rotary<\/figure>","protected":false},"excerpt":{"rendered":"

KEMROC\u00a0KR\u00a0120\u00a0Rotary Drum\u00a0Cutter\u00a0in\u00a0Trenching\u00a0Project.\u00a0Mounted on\u00a0Kobleco\u00a0SK350\u00a0|\u00a0Cutting\u00a0Hard\u00a0Limestone\u00a0in\u00a0Dubai,\u00a0United Arab Emirates.\u00a0 Project Overview  When contractors face trenching projects in hard limestone, productivity, precision, and cost control become critical success factors. On a major infrastructure project in Dubai, United Arab Emirates, a contractor selected the\u00a0KEMROC KR 120 Rotary Drum Cutter\u00a0mounted on a\u00a0Kobelco SK350 excavator\u00a0to excavate trenches through limestone with a compressive strength […]<\/p>","protected":false},"author":14,"featured_media":14125,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-14123","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/posts\/14123","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/users\/14"}],"replies":[{"embeddable":true,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/comments?post=14123"}],"version-history":[{"count":0,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/posts\/14123\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/media\/14125"}],"wp:attachment":[{"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/media?parent=14123"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/categories?post=14123"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kemroc.com\/staging\/wp-json\/wp\/v2\/tags?post=14123"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}