KEMROC KDS Diamond Saw Powers Precision Cutting in Italy Hyundai HX85A | Cutting Concrete in Historic City Center
In the historic city of Bologna, Italy, a major infrastructure project required cutting through 60 MPa reinforced concrete in the heart of the city. Traditional demolition tools like hydraulic hammers were not an option due to strict vibration and noise restrictions. The contractor turned to KEMROC’s KDS 30 Diamond Saw Cutter Wheel, mounted on a 9-ton Hyundai HX85A excavator, to deliver the precision, safety, and efficiency demanded by this sensitive urban job site.
Project Scope and Challenges
The project involved cutting concrete with compressive strength of 60 MPa across several kilometers of urban trenching. With requirements for vertical cuts reaching 350 mm in depth, precision and efficiency were critical. Unlike hammers or breakers that create excessive vibration, dust, and oversized rubble, the KEMROC Excavator Diamond Saw Attachment provided clean, controlled cutting with low vibration and sound that complied with city regulations while maintaining high productivity.
Advanced Cutting Technology
The diamond cutter wheel for excavators used on this project was equipped with specialized blades designed for concrete. With minimal blade wear over months of operation, the system proved durable and cost-effective. The use of water cooling on-site further reduced dust, improved operator safety, and ensured consistent cutting performance.
Productivity and Cost Savings
The KDS 30 Excavator Rock Saw not only complied with urban regulations but also enabled the contractor to reuse the fine material produced. This eliminated the cost of importing extra backfill and reduced transport
requirements. With up to 40% lower energy consumption compared to traditional rock cutting tools, the KEMROC KDS Diamond Saw set a benchmark for sustainable construction technology.
Voices from the Jobsite
Mr. Giovanni Iannarone (Hyundai dealer, G&G Macchine): “When we introduced the Hyundai HX85A combined with the KEMROC KDS 30, contractor immediately recognized the advantage. It’s a compact and powerful solution, perfectly suited for urban construction sites where precision and compliance with regulations are critical.”
Mr. Luppi (Owner, Escavazioni Luppi & C.): “For us, the real breakthrough was cutting concrete in the city center without disturbing the neighborhood. The KEMROC KDS 30 allowed us to finish faster, with precision, and to reuse the material on site. It’s a smart investment that pays back in productivity and client satisfaction.”
Why Choose KEMROC KDS Diamond Saw Technology?
The success of the Bologna project highlights several advantages of the Excavator Diamond Saw Attachment over conventional rock cutting tools:
Precision: Narrow, accurate vertical cuts without over-cutting Safety: Low vibration cutting protected nearby structures in a sensitive urban environment.
Durability: Minimal blade consumption over kilometers of cutting.
Sustainability: Reduced dust, noise, and energy usage.
Cost Efficiency: 40% lower energy consumption and faster project timelines
The KDS 30 Diamond Rock Saw demonstrates why contractors across Europe are choosing KEMROC for projects where precision, safety, and efficiency cannot be compromised. With its ability to handle reinforced concrete, natural stone, and asphalt, the Diamond and Carbide Rock Wheel Saw has proven itself as a versatile, high-performance tool for rock cutting projects considering low vibration and sound in urban areas.
When it comes to trenching projects and excavation, contractors across the United States always aim higher, to deliver faster results, reduced costs, and improved efficiency. Traditional rock-breaking methods often fall short, slowing down projects, creating uneven trench profiles, and driving up energy and backfill costs. That’s where KEMROC cutting attachments set a new benchmark.
At KEMROC, we proudly say “WE WILL ROCK YOU” because our technology consistently outperforms conventional equipment. For your next trenching project, here’s why KEMROC is the smart choice:
Why Choose KEMROC for Trenching Projects?
2x to 4x More Productive than Rock Breakers: Contractors save valuable project time by completing weeks of work in just days. Instead of chipping away with hydraulic breakers, KEMROC’s drum cutters and chain cutters mill through rock with unmatched precision and speed.
Precise Trenching Dimensions, Starting from Just 3 Inches: Whether you’re working on narrow utility trenches or large-scale pipeline construction, KEMROC ensures accuracy down to the inch. This precision translates to cleaner sidewalls, reduced over-excavation, and cost savings on backfill.
Reuse the Excavated Material for Backfilling: Why pay for additional backfill when you already have it on-site? The fine material produced by KEMROC attachments can be reused immediately for trench backfilling, eliminating extra hauling and disposal costs.
Up to 40% Less Energy Consumption: Engineered for efficiency, KEMROC attachments reduce fuel consumption and lower wear on your excavator, making every trenching project more sustainable and profitable.
Underwater Capability up to 100 Feet – No Modifications Required: From subsea trenching projects for cables and pipelines to dam maintenance and harbor dredging, the same attachment works seamlessly above and below water.
Safe and Fast Utility Crossings & Bell Hole Excavation: KEMROC attachments deliver controlled trenching even in sensitive areas, ensuring faster utility crossings with reduced vibration, less disruption, and higher safety standards.
Proven by U.S. Contractors
“KEMROC attachments have performed exceptionally well for us, allowing us to save approximately $100,000 on this project.” This testimonial from Will Hurst – Business Owner, reflects the real-world ROI that KEMROC brings to U.S. projects. As a business owner, cost control and efficiency aren’t just goals, they are essential to profitability. KEMROC has proven its value by minimizing waste, reducing material handling expenses, and enhancing overall operations. Using KEMROC means fewer delays, lower resource usage, and faster turnaround. Whether you’re managing tight budgets or large-scale infrastructure work, KEMROC’s smart excavation tools are built to deliver both immediate savings and long-term reliability.
Mike McClain highlights both efficiency and precision: “By using the KEMROC attachment, we grind and reuse around 96–97% of excavated material back into the trench. The clean, straight trench walls often eliminate the need for shoring.” In heavy trenching projects and excavation work, especially with hard rock, the ability to reuse material is a game-changer. It cuts backfill costs and eases logistics. Plus, cleaner profiles often mean enhanced safety and faster project progression. A Superintendent – McClain’s words underscore how KEMROC blends productivity with environmental and operational excellence, an ideal solution for trenching, pipeline construction, and utility excavation in the U.S.
Stephan Roberson’s testimonial centers on productivity and reusability: “With hydraulic breakers you get uneven chunks. Grinding with KEMROC, we actually reuse the rock elsewhere on the job site. We’ve trenched 10 feet or more with straight, clean walls, and it’s far more cost-effective.” Roberson’s experience captures the daily site-level difference: fewer breakdowns, less cleanup, and immediate reusability of trench output. Whether you’re using rotary drum cutters, bullhead cutters or chain cutters, KEMROC delivers on-site optimization and sustainable trenching, ideal for excavators tackling demanding conditions coast to coast.
Don’t just take our word for it, here’s also what operators across the U.S. have to say about their experience with KEMROC attachments. According to operator Stephan Roberson, “With Hoe Ram you get bigger chunks and breaks off in different levels, but grinding with KEMROC we can actually reuse the rock on other places of the job site.” He also highlighted the precision of the technology, adding, “With
KEMROC, we trenched 10 foot deep or better and the rock wall is straight up and down. It’s a whole lot cheaper to backfill because the stone you pull out can be reused right back in the ditch.” Operator Rodney Horn shared how KEMROC has transformed productivity on-site: “I’ve done what a hoe ram would do in a week, in one day with KEMROC.” These real-world testimonials prove how KEMROC delivers unmatched productivity, lower operating costs, and smarter trench excavation solutions, making it the go-to choice for contractors seeking efficiency and reliability.
The Future of Trenching in the USA
KEMROC KRC Bullhead Cutter For ultra-precise trenching in confined spaces, the KEMROC Bullhead Cutter offers an innovative full-face cutting design. Its patented dual angled drum setup ensures clean, narrow trenches without the need for sideways movement, minimizing over-cutting and enhancing efficiency. Equipped with powerful twin motors and optimized hose protection, the Bullhead Cutter delivers precision trenching for utility, pipeline, and soil stabilization projects.
KEMROC EK Chain Cutter Elevates trenching with its central chain-driven design that delivers precise, full-face cutting. Ideal for tasks demanding fine accuracy, it significantly reduces wear on the excavator swing gear while lowering energy usage compared to conventional rock breakers. Featuring robust construction and ease of maintenance, the EK Chain Cutter is a reliable, high-efficiency solution for trenching and excavation operations.
KEMROC DMW Cutter Wheel High-performance excavator attachment engineered for micro and cable trenching, precision trenching Projects, concrete demolition, and “cut-and-break” operations. Powered by two high-torque hydraulic motors, this cutter delivers smooth, low-vibration cutting through hard rock and reinforced concrete up to 20305 psi. It can be customized in depths up to 39 In and widths up to 15.7 In, and even operate underwater to depths of 100 ft, making it perfect for both terrestrial and submerged applications.
Conclusion
For contractors looking to gain a competitive edge in pipeline trenching projects, micro trenching projects, utility crossings, excavation, and rock cutting, KEMROC is the ultimate smart solution. Meet KEMROC expert team at Utility Expo – Indoor/North Hall stand number N551 to choose the best-fit smart KEMROC solution for your construction project. By choosing KEMROC, you’re not just investing in an excavator attachment, you’re investing in a faster, safer, and more profitable way of cutting rocks. KEMROC isn’t just another tool in your fleet. It’s a revolution in trenching. The question is simple: Why break when you can cut smarter? With KEMROC, WE WILL ROCK YOU!
KEMROC KR Rotary Drum Cutter Powers Trenching Project, France Caterpillar 330 with KEMROC KR 150 | Trenching in Hard Limestone Rock
In the heart of Villes le Lac, France, a trenching and excavation project reached new levels of efficiency and precision thanks to the deployment of the KEMROC KR 150 rotary drum cutter. Mounted on a Caterpillar 330 excavator, this high-performance excavator attachment proved its superiority in handling the demands of trench excavation in hard limestone rock with a compressive strength of up to 100 MPa.
Trench Excavation Project Overview
The trench excavation required precise and deep cuts for a critical pipeline construction project. The excavation dimensions spanned 7,300 mm in length, 3,800 mm in depth, and 1,400 mm in width. This job called for a robust and reliable hard rock cutting machine capable of handling high-resistance limestone without compromising on speed or safety.
Unlike traditional trenching equipment, such as hydraulic breakers or conventional trenchers, the KEMROC KR 150 drum cutter offered a cleaner, quieter, and more efficient alternative. It allowed the team to dig trench sections with minimal disruption, lower vibration, and improved environmental control, a major advantage in populated and sensitive zones like Villes le Lac.
KR 150: A Stone Cutting Machine Engineered for Tough Excavation
The KEMROC KR 150 is a powerful drum cutter excavator attachment specifically engineered for demanding trenching applications. With its robust design and optimized pick layout, it excels in milling through medium to hard rock types like limestone. The drum cutter’s high torque allows for effective material removal, reduced wear on the host machine, and exceptional cutting accuracy.
The KEMROC KR 150 is not just a rock cutter, it’s a versatile rock cutting attachment designed for maximum productivity. With minimal noise and vibration, the drum cutter maintains a smooth trench profile, ideal for projects requiring clean sidewalls and precise depth control. This level of refinement transforms it from a backhoe attachment into a trenching powerhouse, built for modern infrastructure needs.
Site Performance & Excavation Results
Throughout the months-long excavation of a trench in France, the KEMROC KR 150 delivered outstanding performance. Operating continuously in high-compression limestone, the attachment completed the trenching project approximately 3 times faster than traditional methods, highlighting its efficiency and cost-effectiveness.
The fine material produced by the drum cutter was directly reusable, reducing the need for additional crushing or material handling equipment on-site. This translated into major savings in time, transportation, and disposal costs. By eliminating the uneven chunks typically generated by hydraulic hammers, KEMROC’s trencher solution ensured the excavated trench could be immediately prepared for pipe laying, an essential factor in time-sensitive pipeline construction projects.
Why KEMROC KR 150 Leads the Future of Trenching Equipment?
Contractors chose the KEMROC KR 150 over other brands for one simple reason: performance. This drum cutter redefines trenching with a smart technology that minimizes material waste, enhances output quality, and extends the lifespan of both the excavator and the attachment.
The ability to use fine-cut material directly in backfilling operations is a major breakthrough in excavation of a trench. Moreover, the KEMROC attachment’s design allows for stable, continuous operation even in the toughest geological conditions, making it the go-to solution for trench excavation across Europe.
On top, the KEMROC KR rotary drum cutter offers key advantages such as reduced fuel consumption, lower operating noise, and compatibility with a wide range of excavator models. These benefits make it not only a smart rock cutting excavator attachment, but also a strategic investment for contractors seeking innovation, sustainability, and profitability.
Volvo EC380DL + KEMROC KRD 165 Rotary Drum Cutter | Shaft Excavation Cutting Hard Rock | 50-70 MPa Rock Strength
In a landmark infrastructure project in India, a contractor has chosen the KEMROC KRD 165 drum cutter for the shaft excavation phase of a twin tunnel road project in India. Mounted on a Volvo EC380DL excavator configured with double pump flow, this heavy-duty excavator attachment was selected to tackle exceptionally hard rock formations, rated between 50 and 70 MPa, with precision and efficiency.
Application & Equipment Performance
The primary task involved the vertical excavation of a deep shaft as a preparatory stage for a tunnel boring machine (TBM) operation. Given the geological conditions of the region, the project called for a robust and reliable hard rock cutting excavator attachment. The KEMROC KRD 165 drum cutter excavator proved to be the ideal solution.
Within days of deployment, the KEMROC KRD rotary drum cutter attachment achieved exceptional productivity rates of 20–30 cubic meters per hour, impressive numbers for hard rock excavation. The KEMROC rock cutter not only ensured continuous production but also provided a significant cost advantage by minimizing wear and tear on the excavator and eliminating the need for blasting or hammer-based backhoe attachments.
Why KEMROC KRD 165 Was Chosen?
KEMROC has established a reputation as a leader in the field of excavator attachments, offering smart cutting solutions for a variety of excavation, trenching, and tunnelling tasks. The KRD 165 is a high-performance drum cutter specifically designed for rock cutting and profiling.
Its dual-drum configuration, combined with a powerful hydraulic motor, allows for aggressive penetration and efficient material removal, even in extremely hard geological formations. By pairing this rock cutter with a 38-ton Volvo excavator, the contractor ensured maximum torque, stability, and depth control, key elements in excavation and shaft construction.
What truly sets KEMROC drum cutter apart is its versatility. It not only excels in shaft excavation but will also be redeployed in the next stage of the project to perform precision tunnel profiling for the escape passage. This ability to serve multiple functions with the same excavator attachment significantly reduces capital expenditure and increases return on investment.
On-Site Support and Installation
KEMROC and Dozco India Pvt Ltd (a JV of KEMROC Germany & Dozco India) commitment to customer success goes far beyond equipment delivery. In this case, the drum cutter was delivered, inspected, and installed within a short timeframe. A certified service engineer ensured optimal machine setup, verifying hydraulic pressure at 350 bar and a flow rate of 340 LPM. Detailed operator guidance was provided to ensure proper pick rotation, hose cleaning, and cutter maintenance for sustained performance.
This customer-first approach is what continues to distinguish KEMROC and DOZCO from competitors in India. The team doesn’t just sell smart rock cutting tools, they partner with contractors, offering full technical support and on-site training to optimize application results.
Conclusion: Precision, Power, and ROI
The KEMROC KRD 165 drum cutter is redefining what contractors can expect from a drum cutter excavator. Designed for hard rock excavation, shaft excavation, and tunnel profiling, it operates with surgical precision while maintaining high levels of productivity.
As India accelerates infrastructure development, KEMROC attachments are increasingly being recognized as essential construction site excavator attachment for projects demanding reliability, efficiency, and innovation. From stone cutting machines to specialized excavator mining tools, KEMROC delivers smart solutions that turn complex excavation and rock cutting challenges into competitive advantages.
KEMROC EK Chain Cutter, the Smart Solution: Clean Cuts. Zero Waste. Total Control Wacker Neuson ET90 with KEMROC EK 40 | Trenching in Sandstone Rock in Italy
In the scenic region of Agrigento, Italy, a major trench excavation project for pipeline construction called for a reliable and efficient solution for trenching and excavation in sandstone rock. The project utilized the KEMROC EK 40 chain cutter mounted on a Wacker Neuson ET90 excavator, an ideal match for this kind of medium-scale excavation of a trench.
Site Performance & Excavation Results
The EK 40 chain cutter was deployed on-site in Agrigento to dig trenches for a pipeline project stretching across a variety of mixed stone conditions, predominantly sandstone with an approximate compressive strength of up to 40 MPa. Over several months of operation, the attachment demonstrated exceptional cutting consistency and material handling.
Beyond its low operating costs, the KEMROC chain cutter delivered superior trench quality. According to the Sales Manager – Stefano Leban, “With the KEMROC cutter, the material is reusable. That’s the most important thing. With the hydraulic breaker, you break it into uneven chunks, big and small, and most of it is waste. But with KEMROC, we grind the rock cleanly and we can use it right back in the trench. The cut is smooth, and the level and sides are done in one pass while excavating.”. The material produced was fine and consistent, allowing for immediate reuse as backfill, eliminating the need for imported material, and streamlining the entire trenching and excavation process.
KEMROC EK 40 Chain Cutter Specifications
The KEMROC EK 40 chain cutter is engineered specifically for high-performance trenching in medium-hard rock types. It features a robust 44 kW hydraulic motor, generating a maximum torque of 5,700 Nm, and delivers a cutting force of up to 24 kN. With a cutter width of 500 mm, the EK 40 is ideally suited for narrow trench excavation, enabling precise and controlled cutting even in tough geological conditions.
Designed as a rock cutting machine, the EK 40 is mounted centrally on a rigid frame and operates using a continuous cutting chain system. This configuration allows it to dig narrow deep trenches deeper and straighter than conventional tools, reducing side forces and vibration on the carrier machine. With minimal wear, low fuel consumption, and optimized pick layout, this rock cutter excels as an innovative and lower operation cost alternative to both hydraulic breakers and traditional drum cutters.
Why KEMROC Chain Cutter is the Smart Choice for Trenching?
The decision to adopt the KEMROC EK 40 chain cutter was based on its clear advantages over traditional hammer and breaker methods, with key advantage of eliminating over excavation and saving overall costs of the trenching project. The EK 40 delivered higher productivity per linear meter, reduced downtime, and cleaner trench profiles, all critical benefits in urban or infrastructure settings. Unlike typical stone cutting machines or drum cutters that rely on swinging motion, the EK 40 chain cutter provides a straight-line cut with minimal vibration, protecting both the excavator and surrounding environment.
Its chain-driven system offers unparalleled precision in pipeline construction, particularly where trench dimensions and cut quality are non-negotiable. As a trenching equipment solution, the EK 40 reduces noise and vibration, which is vital for work in residential or sensitive zones. The combination of low-maintenance operation, and the ability to use it on compact carriers makes it a highly versatile and economical excavator attachment.
With this successful application in Agrigento, KEMROC has once again demonstrated its expertise in developing innovative excavator attachments that redefine industry standards. For contractors seeking smarter ways to approach trench excavation, especially in soft to medium-hard rock formations, the EK 40 stands as a benchmark in performance, efficiency, and return on investment
Performance Highlights
This KEMROC chain cutter exceeded expectations in every performance metric:
High Performance per linear meter: no over excavation, ideal for excavating deep, narrow trenches with precise profiles, minimizing trench width, reducing transport costs, and making the material produced suitable for reuse as backfill material.
Efficient Trench Excavation: The EK 40 chain cutter delivered precision cutting at controlled depths and widths, producing clean trench walls ideal for pipeline construction and utility installations.
Reusable Material: Unlike hydraulic breakers, which tend to pulverize stone into unusable chunks, the EK40 excavator attachment generated fine-grained material. This allowed contractors to backfill the trench using the same excavated material, dramatically reducing transportation and dumping costs.
Smooth Operation: Compared to conventional stone cutting machines and backhoe attachments, the EK 40 offered a quieter, lower-vibration operation, ideal for urban and noise-sensitive environments.
Conclusion
KEMROC’s EK 40 chain cutter has proven to be an essential excavator attachment for contractors seeking an efficient, precise, and sustainable alternative to conventional trenching and excavation methods. Its ability to dig trenches in sandstone with minimal wear, reduced vibration, and high-quality output positions it as a leader in innovative and lower operation cost trenching equipment. Whether you’re dealing with pipeline installation, urban utility projects, or hard rock trenching, KEMROC’s EK 40 delivers the results you need, cutting costs, boosting productivity, and redefining what’s possible on site.
KEMROC KDS Diamond Saw Powers Fibre Optic Trenching Project in Asphalt, Italy CAT 306 with KEMROC KDS 30 | Horizontal Cuts in Asphalt and Concrete
One Saw. Endless Applications. Meet KEMROC KDS Diamond Cutting Solution
The KEMROC KDS range of diamond saws is the smart choice for contractors tackling a wide spectrum of cutting tasks. Whether you’re working on fiber optic installations, demolition, recycling, or sawing through wood, concrete, steel, or aluminum, the KDS delivers unmatched performance and precision.
Ideal for compact machines, the KDS 20 model is perfectly suited for 2 to 4-ton excavators, making it the go-to excavator attachment for confined spaces and specialized job sites. Designed to handle the toughest materials, the KDS saws can cut through concrete, stone, and GRP (glass fiber reinforced plastic), commonly found in wind turbine blades. Thanks to high rotation speeds and a wide selection of blade types, KDS diamond saws excel across multiple applications. Available saw blades include options for natural stone, granite, concrete and reinforced concrete, asphalt, plastics, wood, foil, and aluminum.
From urban trenching to precision demolition and high-performance recycling, the KDS Diamond Saw offers a rugged, reliable, and cost-efficient solution for today’s demanding contractors.
KEMROC KDS 40 in recycling project cutting paper rolls in Europe
Project Overview: Urban Trenching Challenge in Pordenone, Italy
In Pordenone, Italy, a micro trenching contractor faced the demanding task of cutting 15 meters through a complex mixture of asphalt, concrete, rock, and light backfill. The jobsite required shallow yet precise horizontal trenching with minimal disruption to the surrounding area, especially given the variability in material strength ranging from 10 to 170 MPa.
The Smart Choice: KEMROC KDS 30 Mounted on CAT 306
To meet the challenge, the team selected the KEMROC KDS 30 excavator attachment, mounted on a CAT 306. The combination offered an ideal solution for tight urban environments, enabling fast, efficient trenching without the high noise and vibration associated with traditional equipment like floor saws or asphalt milling machines.
Game-Changing Blade Technology
KEMROC introduced a prototype diamond rock cutting machine blade, 800 mm in diameter and 20 mm wide, perfectly tailored for microtrenching. The blade allowed horizontal cuts at a depth of 300 mm, with productivity hitting an impressive 18–20 linear meters per hour. Even more notable was the blade’s durability, estimated at 1.5 km lifespan per blade, with minimal wear during the entire project.
More Flexibility, Less Overhead: KEMROC’s Economical Alternative to Traditional Trenching
To ensure minimal environmental impact and enhanced safety, water was actively used on-site to suppress dust during the trenching operation. Operators quickly recognized the advantages of the KEMROC KDS 30 Diamond Saw, particularly its low-vibration and low-noise performance, features that are often only associated with indoor floor saws.
What truly sets the KDS 30 apart is its unmatched ability to deliver high performance in challenging outdoor trenching conditions, while significantly reducing project costs. Compared to conventional cable trencher machines and asphalt removal tools, KEMROC Diamond Saw KDS 30 offers a cleaner, quieter, and far more economical alternative. The cost difference is not just noticeable, it’s tremendous. For contractors who prioritize efficiency, the KDS 30 dramatically cuts down overall project expenses, thanks to its reduced maintenance needs, minimal wear on the host machine, and extended blade life. With exceptional cutting precision and lower operational costs, KEMROC Diamond Saw has quickly become the go-to smart solution for operators and project managers seeking both performance and profitability.
In fact, the KEMROC KDS Diamond Saw proved to be a game-changer on site. Its innovative design and cutting-edge technology allowed for efficient horizontal trenching in mixed materials, including asphalt, concrete, and light rock, without the disruption, downtime, or excessive maintenance associated with traditional methods. For contractors seeking high productivity, low environmental disturbance, and long-term operational savings, KEMROC truly stands out as the ‘smart’ solution in the world of excavator attachments.
Why KEMROC? Faster, Smarter, Cost-Effective
Contractors cited several reasons for choosing KEMROC over other brands:
Lower maintenance and higher utilization
Significantly improved productivity
A revolutionary new way of microtrenching in Italy
Consistent, precise results through hard rock, asphalt, and concrete
Low price per linear meter
Versatile hydraulic attachment designed for multiple applications, minimizing operational costs while maximizing return on investment
Simple hydraulic attachment for multi-use reducing the costs and increasing ROI
KEMROC KDS Diamond Saw proved especially valuable for pipeline construction, stone cutting, and trench excavation, outperforming alternatives like floor saws, concrete breakers, or big quarry machines in terms of cost-efficiency, jobsite safety and low noise in urban areas with houses and schools.
The Future of Microtrenching
The KDS30 attachment not only delivered exceptional performance, it redefined what’s possible in urban trenching. With its superior design and operator-friendly performance, KEMROC has positioned itself as a pioneer in smart excavation attachments, from auger drills to cutting wheels, and now, microtrenching. Whether your next job involves cable trenching, asphalt cutting, or excavation of a trench in mixed ground conditions, the KDS30 proves that KEMROC means control, quality, smart, and cutting-edge results.
Smart Trenching with KEMROC EK 40 Cosmoforça Unipessoal Lda | Carvoeiro, Algarve | Portugal
In Carvoeiro, Algarve (Portugal), Cosmoforça Unipessoal Lda faced a demanding trenching project requiring excavation of 20 km of trench in limestone with an estimated compressive strength of ~30 – 50 MPa. The project involved trenches 50 cm wide and 2 meters deep, to be completed over 2 months.
The job site presented significant challenges: limited access space near the sea, medium-hard limestone rock, and a confined working environment where heavy equipment could not be used effectively. Early attempts with hydraulic breakers and larger attachments failed to deliver results.
The Right Solution: KEMROC Chain Cutter EK 40
In search of an efficient solution, Tierri Correia, Owner of Cosmoforça, turned to the local KEMROC dealer in Portugal. The team recommended the KEMROC EK 40 Chain Cutter mounted on a Develon excavator, a combination perfectly suited for the site’s constraints.”Big attachments couldn’t access the site. Even a smaller breaker failed. That’s when we discovered KEMROC,” said Tierri Correia.
Once mounted, the EK 40 Chain Cutter delivered immediate results. The chain cutter was able to penetrate and steadily cut through the previously unbreakable limestone. Continuous cutting enabled smooth and precise trenching, which was not possible with previous solutions and equipment. “It was a game-changer. The stone we couldn’t break, we could now cut through cleanly with KEMROC Chain Cutter EK 40. Trenching became manageable again,” Tierri added.
KEMROC EK 40 Powers 20 km Trenching Project in Portugal’s Medium-Hard Limestone!
Project Impact
Prior to using the EK 40 Chain Cutter, the project was at a complete standstill. Productivity was lost, and project delays were accumulating. With the EK 40 in place: Trenching progressed continuously, Idle time was eliminated, No more equipment failures, and higher productivity was achieved. “We were blocked. Once we used EK 40 Chain Cutter, no more idle time, no more failures. It solved the problem—plain and simple.” said Tierri Correia.
Ease of Use & Operator Experience
KEMROC Chain Cutter EK 40 excavator attachment was easy to integrate and operate. The site operators adapted quickly, thanks to their background with asphalt attachments. A short training session from the KEMROC dealer ensured that the team was fully prepared. “Our operators adapted easily and felt confident using EK 40, it was really easy to manage.”
Customer Support & Trust
Tierri Correia praised the KEMROC dealer in Portugal – DUROMIN for their responsive customer support and involvement throughout the project. “100% satisfied. They were with us from day one, stayed involved, and supported us until everything was running smoothly.”
Why Choose KEMROC Again?
Cosmoforça evaluated various brands and technical options before selecting KEMROC. The decision was reinforced by on-site support and superior technical performance. “We compared the market and KEMROC stood out, both technically and through their support. That’s why we chose them, and we’ll choose them again.”
Conclusion
For Cosmoforça Unipessoal Lda, the KEMROC Chain Cutter EK 40 delivered a highly effective and easy-to-use solution for complex trenching in medium-hard limestone. Backed by strong local support and proven performance, KEMROC earned the trust of another satisfied customer in Portugal.
KEMROC KDS Diamond Saw Powers Tunnel Cutting in SNCF Project, France BROKK 180E with KEMROC KDS 20 | Vertical Cuts in Limestone Rubble and Concrete
In a recent SNCF (French National Railway) tunnel project in France, ALSACIENNE DE MINAGE ET DEMOLITION were tasked with executing precision cutting in a confined and challenging underground environment. The project involved cutting through a combination of limestone rubble and concrete with compressive strengths ranging between 15 and 20 MPa.
The client selected the KEMROC KDS 20 diamond saw, equipped with a concrete blade (800 mm diameter), and mounted it on a BROKK 180E machine with an extendable arm, an ideal setup for operating within narrow tunnel profiles.
The project spanned a duration of 2 months, requiring cutting a total of 400 meters along the vertical tunnel walls. The target cutting depth varied between 10 and 15 cm, with an expected production rate of approximately 40 linear meters per day, adjusted for non-continuous operation cycles dictated by site logistics.
1. Space constraints limited the use of larger hydraulic equipment. 2. Dust suppression and cooling were critical; water supply was available onsite to enable wet cutting 3. The site required vertical cuts, demanding high stability and precise control. 4. In addition, the material composition, a mix of concrete with embedded limestone rubble, presented a variable cutting profile, placing additional demands on tool performance and wear resistance.
Why KEMROC KDS Diamond Saw?
Faced with these challenges, the project team evaluated multiple cutting options. The KEMROC KDS 20 was chosen for its: High productivity in confined spaces, ability to achieve precise, clean vertical cuts, minimal vibration and noise compared to impact tools, proven performance on BROKK electric demolition robots, which offer superior maneuverability in tunnels, and efficient blade consumption, only 1 diamond disc was used over the entire 400-meter scope.
Performance on Site
Once mounted, KEMROC Diamond Saw KDS 20 delivered excellent results:
1. The Tunnel cutting process was stable and smooth, with operators able to maintain consistent depth and line across all wall sections. 2. The BROKK 180E’s extendable arm provided the reach and positioning flexibility required for vertical cutting along the tunnel walls. 3. Water cooling effectively managed dust and blade temperature, ensuring safe and efficient operation.
Productivity averaged 40 linear meters per day, aligned with the project’s targets, a testament to the reliability of the KDS Diamond Saw as a smart solution under continuous use.
Results & Customer Feedback
The project team reported high satisfaction with the KEMROC KDS solution: “The KDS 20 proved to be an excellent choice. We completed all vertical cuts as specified, with minimal blade consumption and without the vibration issues associated with conventional cutting methods. The setup with BROKK 180E was ideal for our confined work area.”
Conclusion
KEMROC’s KDS Diamond Saw once again demonstrated its value in a critical infrastructure application, enabling safe, precise, low vibration, and efficient cutting in a challenging SNCF tunnel environment.
The success of this project reinforces KEMROC’s position as a trusted partner for smart cutting solutions in railway, tunnelling, demolition, and civil engineering sectors across Europe.
To install underground services, an EK 150 chain cutter and an EKT 220 rotary drum cutter are used for low-vibration removal of solid dolomite rock.
At a project to demolish and re-construct the Ludwig-Uhland-Halle in Gärtringen (Baden-Württemberg, Germany), the company Peter Gross Bau was awarded the contract for the complete renewal of the pipeline layout in order to integrate the future building into the municipal infrastructure. Included in the tender was the low-vibration removal of around 3,000 m³ of dolomite rock. Using unconventional equipment – a 35-tonne excavator with a KEMROC EK 150 chain cutter and a 75-tonne excavator with a KEMROC EKT 220 drum cutter – the project was almost fully completed by the winter break …
