KEMROC KR 45 Rotary Drum Cutter in Shaft Excavation for Manhole Project.
Mounted on SANY SY75C | Cutting Limestone in Dubai, United Arab Emirates.
Project Overview
When contractors face challenging limestone formations during shaft excavation and manhole construction, selecting the right excavation technology can make the difference between a profitable project and costly delays. On a recent project in Dubai, United Arab Emirates, a KEMROC KR 45 Rotary Drum Cutter mounted on a SANY SY75C excavator demonstrated why drum cutters are becoming the go-to-solution for deep excavation applications.
Project Requirements and Ground Conditions
The project involved the construction of a large precast manhole requiring precise shaft sinking in limestone with a compressive strength of approximately 60 MPa (8,702 psi). The excavation measured 7,000 mm × 7,000 mm with a cutting depth of 500 mm, demanding both accuracy and productivity throughout the operation.
As with many pump station construction and underground utility projects, maintaining dimensional accuracy during shaft excavation was critical to ensure smooth installation of the precast manhole structure.
The KEMROC Solution
To meet these requirements, the contractor selected the KEMROC KR 45 Rotary Drum Cutter, a high torque drum cutter attachment specifically designed for demanding rock excavation applications. Installed on the SANY SY75C excavator, the hydraulic drum cutter delivered controlled and efficient rock cutting while maintaining exceptional excavation precision.
The KR 45 is part of KEMROC’s range of excavator drum cutters engineered to maximize productivity in hard rock and challenging ground conditions.
Advantages of the KEMROC KR 45 Rotary Drum Cutter
Unlike conventional excavation methods, KEMROC drum cutter attachment enabled accurate shaft sinking with minimal overbreak. This made it particularly suitable for manhole construction, deep excavation, and pump station construction projects where precision is essential.
KEMROC rotary drum cutter also produced clean excavation profiles, reducing the need for secondary trimming and helping the contractor maintain project schedules and lower cost of operation. The result was a safer, more cost efficient and more controlled excavation process with reduced material waste.
Low Wear and High Productivity
The KEMROC KR 45 utilizes durable round attack picks, achieving exceptionally low tool consumption of only three picks per 100 cubic meters of excavated material. This outstanding wear performance helped reduce operating costs while maximizing uptime throughout the project.
The contractor selected KEMROC over competing brands primarily because of its higher productivity. The KEMROC solution was first recommended by an industry colleague who had experienced the performance advantages of KEMROC attachments firsthand.
Versatile Applications Beyond Shaft Excavation
Today, KEMROC excavator drum cutters are used across a wide range of applications. In addition to shaft excavation and manhole construction, contractors rely on rotary drum cutters for trenching, shaft sinking, surface profiling, utility installation, demolition, and rock excavation.
KEMROC solutions are also successfully utilized as trenching drum cutters, excavator rock cutters, drum cutters for surface profiling, underwater drum cutter attachments, and specialized excavator drum cutters for mining applications. Their versatility allows contractors to tackle multiple applications using a single attachment platform.
Delivering Precision Excavation in Dubai
The successful completion of this project in Dubai demonstrates how a KEMROC transverse drum cutter can deliver precise, efficient, and cost-effective excavation in hard limestone conditions. By combining high productivity, low pick consumption, and accurate cutting performance, the KEMROC KR 45 helped the contractor complete the shaft excavation efficiently while maintaining the quality required for precast manhole installation.
For contractors involved in deep excavation, shaft sinking, pump station construction, and underground infrastructure projects, the KEMROC KR 45 Rotary Drum Cutter continues to prove itself as a reliable and productive solution for demanding excavation environments.
