Rotary Drum Cutters

KEMROC Rotary drum cutters – High-Precision for Rock, Concrete & More

KR Drum Cutters by KEMROC in reinforced concrete
  • Save up to 40% energy.
  • Deliver cutting forces up to 311 kN.
  • Roduce 50% less excavation volume.
  • Reduce backfill material costs.
  • Work at depths of 30 meters underwater.
  • Operate with low vibration levels.
High-Precision Rotary Drum Cutters for Rock and Concrete Excavation

KEMROC’s Drum Cutters, proudly engineered and manufactured in Germany, are designed to deliver precision cutting across rock, concrete, and other tough materials. Known for their superior German engineering, they ensure efficient performance for various excavation and demolition tasks. These cutters known also as Rock Grinder minimize wear on the excavator, reduce energy usage by up to 40%, and produce fine output material ideal for backfill. Built for trenching, profiling, demolition, and underwater applications, KEMROC cutting attachments are robust, durable, and versatile, offering reliable productivity and cost savings across diverse projects.

KEMROC offers the broadest selection of transverse drum cutters, designed to fit excavators from 0.6 to 125 tons. Available in both gearbox and direct drive designs, these cutters cover all major applications, including trenching, profiling, demolition, roadwork, tunneling, and underwater projects, ensuring compatibility across various carriers.

Compare Drum Cutters ranges

  • EKT range
    Rotary drum cutters – can be converted into chain cutters
    Measure:
    • Recommended excavator weight
      18 – 70 t
      4.4K-154K lb
    • Possibility of conversation to a chain cutter
      yes
      yes
    Applications:
    • Trenching and pipeline work
    • Mining of soft to medium hard minerals
    • Also used for concrete renovation, profiling, underwater excavations and tunnelling
    10 models
    Details
  • KR range
    Rotary drum cutters with spur gears
    Measure:
    • Recommended excavator weight
      0,6 – 125 t
      1.3K-275K lb
    • Possibility of conversation to a chain cutter
      no
      no
    Applications:
    • Tunnelling
    • Demolition
    • Also used for trenching and pipeline work, renovating concrete, profiling, mining of soft minerals and underwater excavating
    24 models
    Details
  • KRD range
    Rotary drum cutters with direct drive
    Measure:
    • Recommended excavator weight
      0,5 – 50 t
      1.1-110K lb
    • Possibility of conversation to a chain cutter
      no
      no
    Applications:
    • Demolition using long arm excavators
    • Ground stabilisation
    • Renovating concrete
    • Also used for trenching and pipeline work, profiling, mining soft minerals, underwater excavations, tunnelling and shaft sinking
    9 models
    Details

Why Choose KEMROC Drum Cutters?

High Torque Performance

Equipped with powerful hydraulic motors, KEMROC drum cutters deliver high torque, ensuring efficient cutting through rock, concrete, and other hard materials. This performance guarantees fast and accurate material removal, even in the most challenging conditions.

Durable and Reliable

KEMROC Cutting attachments are constructed with wear-resistant materials that ensure long-lasting performance. The robust design minimizes downtime and maintenance needs, making these cutters a reliable choice for continuous use.

Versatile Applications

From trenching and profiling to demolition and tunneling, these attachments are versatile tools that can handle a wide range of applications. Their adaptability makes them essential for various construction and excavation projects.

Efficient Output Material

KEMROC drum cutters produce fine, reusable output material. It can be directly used as backfill, cutting down on waste and transport costs.

Key Features and Benefits
KEMROC Drum Cutter in Reinforced Concrete - KR160
01
High Efficiency

High-torque motors ensure fast, accurate cutting, reducing time on the job and cutting costs by up to 40% compared to traditional drum cutters.

02
Precision Cutting

KEMROC cutting attachments are designed to deliver precise cuts in rock and concrete, ensuring smooth surfaces and reducing the need for additional finishing work. If a trench is larger than needed, you'll require more backfill, increasing material expenses. This is especially costly if using concrete, as it’s more expensive than standard backfill. Precision cutting ensures the trench is exactly the right size, reducing material waste, transport costs, and overall project expenses.

03
Wear-Resistant Drums

Built with wear-resistant materials, KEMROC Rock Grinders offer long-lasting performance, even in tough conditions, reducing maintenance costs and increasing productivity.

04
Low Vibration

Minimized vibrations make KEMROC Raptors safe for use near sensitive structures (e.g., historical buildings, existing utilities). This reduces damage and maintenance, ensuring the longevity of the equipment.

05
Low Noise

Allows use in noise-sensitive areas such as hospitals, residential zones, and hotels. Cities in Europe now prefer low-noise attachments like drum cutters over rock breakers.

06
Low Maintenance

Only requires regular replacement of worn-out picks and a gear oil change every 1,000 hours, reducing maintenance time and costs.

07
Water Resistance for Marine Civil Projects

KEMROC cutting attachments are built to operate underwater up to a standard depth of 30 meters, making them ideal for marine and civil applications. For deeper projects, we can provide custom designs. Notably, we have successfully completed a project at a depth of 1,000 meters underwater, showcasing the adaptability and strength of our equipment for challenging environments.

KEMROC Drum Cutters – Demolition of a Reinforced Concrete
  • German-engineered drum cutters ensure high performance
  • Produce fine material suitable for recycling.
  • Maintain efficiency even in hard rock conditions
  • Enhance project timelines with fast operation
VIdeo Thumbnail - Drum Cutters Page

Main Drum Cutters Applications

KEMROC drum cutters are versatile tools designed for a wide range of applications, making them essential for construction and excavation projects
KEMROC KRD 120 - Drum Cutter for demolition
KEMROC EKT Drum cutter - Trenching Project

Rock and Concrete Excavation

KEMROC drum cutters offer precise cutting for rock and concrete, ensuring smooth and consistent trench profiles. The high torque performance makes them suitable for a variety of construction and demolition tasks, with output material ready for backfill.

Trenching

KEMROC drum cutters deliver narrow, precise trenches, minimizing over-excavation and cutting waste. Designed to handle trenching tasks, they eliminate the need for excess material transport, offering leaner productivity compared to rock breakers. They also ensure clean cuts around existing utilities and manholes, preventing damage.

Profiling

our cutters excel at profiling surfaces, delivering smooth and even results with very fine tolerance. These cutters operate 4x to 6x faster than traditional methods, significantly reducing the need for additional finishing work.

Demolition

KEMROC Rock Wheels excel at demolishing reinforced concrete, with the ability to handle rebar up to 30 mm. This makes them ideal for demolition tasks that require precision and power.

Underwater Applications

Fully functional at depths of up to 30 meters in underwater operations, these cutters perform well in submerged conditions, supporting a range of marine projects.

See KEMROC Attachments in Action!

Watch  videos and photos of our attachments tackling real-world projects. Explore unmatched performance, precision cutting, and more—right on your browser.

FAQs Related to Drum Cutters

  • What materials can drum cutters handle?

    KEMROC drum cutters are engineered to cut through a wide range of tough materials, including sedimentary rocks like limestone, sandstone, shale, coral rock, rock salt, gypsum, and conglomerate. They are also effective for concrete, reinforced concrete, and asphalt. Designed with wear-resistant drums, they ensure durability and long-lasting performance, even under demanding conditions.

  • How do drum cutters improve cutting efficiency?

    With high-torque motors, KEMROC drum cutters can deliver cutting forces up to 311 kN. The precise cutting reduces over-excavation, saves costs, and ensures efficient material removal.

  • Are drum cutters suitable for both horizontal and vertical surfaces?

    Yes, KEMROC cutters are designed for versatility, making them ideal for cutting both horizontal surfaces, as seen in tunneling and mining, and vertical surfaces, like those in trenching applications. This adaptability ensures they can handle a wide range of excavation and construction tasks efficiently.

  • What maintenance is required for drum cutters?

    Regular inspection of hydraulic motors and replacing worn-out picks are recommended. Gear oil should be changed every 1,000 hours.

  • How do KEMROC drum cutters enhance site safety?

    KEMROC Cutters are designed to minimize vibration during operation, enhancing operator comfort, reducing the impact on surrounding structures, and reducing the risk of collapse. Their smooth cutting capabilities also reduce the risk of accidents and ensure a safer working environment.

  • Are drum cutters suitable for heavy-duty industrial applications?

    Yes, KEMROC drum cutters are engineered for high productivity and heavy-duty applications, offering the durability, precision, and power needed for challenging industrial environments such as trenching, tunnelling, and demolition.

  • Can drum cutters cut reinforced concrete effectively?

    Yes, KEMROC cutters are capable of handling rebar diameters up to 30 mm, making them suitable for reinforced concrete demolition.

  • How does precision cutting help save costs?

    Precision cutting avoids over-excavation, preventing unnecessary backfill. This minimizes material transport and saves money by reducing additional finishing work.

  • Do KEMROC drum cutters work efficiently in noise-sensitive areas?

    Yes, the low-noise design allows operation in residential, hospital, and hotel zones, meeting European noise control standards.

  • Can drum cutters operate in Marine Civil Projects?

    Yes, KEMROC cutters can function effectively at depths of up to 30 meters without special modifications, making them ideal for marine and civil projects.

Peter-Nashaat
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