Segmented Diamond Cutting Disc for Concrete & Masonry

105-350mm

Engineered for fast, aggressive cutting of granite, stone, concrete, and brick. This cutting disc excels in both dry and wet conditions, available in sizes from 105mm to 350mm for angle grinders, circular saws, and masonry saws. Its core value comes from durable sintered diamond segments for extended life and consistent power. Strategically placed key slots ensure superior cooling and efficient debris removal, resulting in clean, precise cuts and longer disc lifespan while enhancing safety.
Engineered for fast, aggressive cutting of granite, stone, concrete, and brick. This cutting disc excels in both dry and wet conditions, available in sizes from 105mm to 350mm for angle grinders, circular saws, and masonry saws. Its core value comes from durable sintered diamond segments for extended life and consistent power. Strategically placed key slots ensure superior cooling and efficient debris removal, resulting in clean, precise cuts and longer disc lifespan while enhancing safety.

Compatible Materials & Products

Precision Cutting Across Concrete, Masonry, and Natural Stone

Specs and options

Specifications customizable upon request.

DiameterSegment WidthSegment HeightArbor
Inchesmmmmmmmm
4.13"1051.6820 / 22.23
4.3"1101.45/820 / 22.23
4.5"1151.6822.23
5"1251.4822.23
6"1501.6822.23
7"1801.6822.23
8"2001.61022.23
9"23021022.23
12"3002.21050 / 25.4
14"3502.61050 / 25.4

Cut Faster, Last Longer.

Our cutting disc for concrete features heat-dissipation slots.

Accelerated Cutting Speed

The segmented design with aggressive diamond concentration ensures rapid material removal and reduces friction.

Extended Disc Lifespan

A durable sintered bond securely holds diamonds, providing superior wear resistance and a lower cost per cut.

Superior Dry Cutting

Key slots in the core provide enhanced air cooling, preventing disc overheating and warping during intense use.

Versatile Material Application

Optimized bond formulation provides excellent results across concrete, granite, brick, and other masonry materials.

Enhanced Debris Removal

The deep gullets between segments efficiently clear cutting dust and slurry, ensuring a smoother, faster cut.

High Operational Safety

Our manufacturing process ensures core integrity and segment bonding strength, compliant with EN 13236 and oSa standards.

FAQs

Common Questions About Sintered Segmented Diamond Cutting Discs

What is a sintered segmented diamond cutting disc used for?

A sintered segmented disc is designed for fast, aggressive cutting of hard construction materials. The "segmented" aspect refers to the gaps (gullets) between the cutting sections, which help cool the disc and clear debris, making it ideal for dry cutting.

The term "sintered" describes the manufacturing process where diamond grit and metal powders are fused under high heat and pressure. This creates a strong, wear-resistant bond that holds the diamonds securely.

This cutting disc is primarily used for:

  • Cutting concrete, including reinforced concrete
  • Sawing through granite, natural stone, and pavers
  • Applications involving brick, block, and other masonry materials

How to choose a segmented disc for concrete vs granite?

Choosing the right cutting disc depends on the material's hardness and abrasiveness. The key difference lies in the "bond," the metal matrix holding the diamonds.

For hard, less abrasive materials like granite, you need a softer bond. The softer metal wears away faster, exposing new, sharp diamonds to maintain cutting speed. For softer, more abrasive materials like concrete or asphalt, you need a harder bond to resist the abrasive wear and extend the disc's life.

As a general rule:

  • Hard Materials (Granite, Reinforced Concrete): Softer bond disc.
  • Abrasive Materials (Green Concrete, Asphalt, Block): Harder bond disc.

Always consult our technical team to select the perfect bond formulation for your specific application to maximize both cutting speed and lifespan.

Can this segmented disc cut reinforced concrete with rebar?

Yes, this cutting disc is engineered to cut reinforced concrete containing steel rebar. This is a demanding application that tests the limits of a diamond tool.

The disc's success depends on two factors: a tough, durable bond that prevents premature segment loss when hitting rebar, and an aggressive segment design that can cut through both hard aggregate and soft steel. Our discs are designed to handle these alternating stresses effectively.

For best results:

  • Maintain a steady cutting pressure; do not force the disc.
  • Ensure adequate cooling, especially during deep cuts (wet cutting is often preferred).
  • Use a saw with sufficient power (e.g., a high-power floor saw or wall saw).

Proper use ensures efficient cutting through rebar with minimal disc wear, enhancing safety and productivity. (Note: Performance may vary based on rebar diameter and density).

What are the benefits of key slots for dry cutting?

The key slots (also known as gullets) between the segments are critical for high-performance dry cutting. They provide multiple significant advantages over a continuous rim disc in this application.

Their primary functions are:

  • Heat Dissipation: The slots allow air to flow through the disc, actively cooling the steel core. This prevents the disc from overheating, warping, or losing tension, which is a common failure point in dry cutting.
  • Debris Removal: They provide a clear path for cutting dust and debris to be ejected, preventing the disc from binding in the cut and allowing for smoother, faster operation.
  • Stress Relief: The slots also allow the disc core to flex slightly under cutting pressure, reducing stress and the risk of cracking.

What diameters and arbor sizes are available for the cutting disc?

We offer a comprehensive range of sizes to fit most professional machinery, including angle grinders, circular saws, and masonry saws.

Our standard stock typically includes:

  • Diameters: Ranging from 4.13 inches (105mm) up to 14 inches (350mm) and larger upon request.
  • Arbor Sizes: Common sizes like 20mm, 22.23mm (7/8"), and 25.4mm (1") are available. Knockout bushings or custom arbor holes can also be supplied.

Since specifications can be customized, we recommend contacting our sales team with your machine's model and requirements. We will ensure you receive a cutting disc with the perfect diameter, arbor hole, and segment height (e.g., 8mm, 10mm) for optimal performance and a secure fit.

How do I know when to replace my segmented diamond disc?

Knowing when to replace a cutting disc is crucial for safety and efficiency. There are several clear indicators that a disc has reached the end of its service life.

Look for these signs:

  • Segment Wear: The most obvious sign is when the diamond segment is worn down close to the steel core. There should always be a visible portion of the segment remaining. Cutting with a worn-out segment can damage the core and the material.
  • Cracks or Damage: Inspect the steel core for any cracks, especially around the arbor hole or gullets. A cracked disc is extremely dangerous and must be discarded immediately.
  • Wobbling or Vibration: If the disc starts to wobble or vibrate excessively during use, it may be warped or have lost tension due to overheating. This indicates it is no longer safe to use.
  • Reduced Cutting Speed: A significant drop in cutting performance that cannot be fixed by "dressing" the disc (cutting a soft, abrasive material to expose new diamonds) means it is likely worn out.

Global Leader in CNC Machinery & Diamond Tools Manufacturing

Global Certifications & Industry Standards

CE Certification

CE Certification

Tech Patents

100+ Tech Patents

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ISO 9001:2015

ISO Certification

Industry Standards

DINOSAW goes beyond merely complying with international engineering standards—we actively lead their formulation. As the principal drafter of key industry benchmarks for Stone Multi-Wire Saw Machines, CNC Wire Saw Machines, and Bridge Saws, we define the rules of precision manufacturing. Backed by ISO 9001, CE certification, and 100+ technology patents, our products guarantee exceptional durability and safety in the most demanding high-load environments.

Proven Expertise & Global Applications

Countries Served

75+

Countries Served Worldwide

Industry Expertise

20+

Industry machinery expertise

Trusted by clients in over 75 countries, DINOSAW delivers lifecycle quality traceability and specialized technical support across 20+ machinery sectors. From traditional mining and stone processing to high-precision manufacturing (semiconductors, quartz glass) and specialized fields like nuclear decommissioning, our comprehensive solutions consistently meet the world's most rigorous operational requirements.

Get a Quote for Your High-Performance Cutting Needs

DINOSAW manufactures and supplies industrial CNC machinery. Our equipment is specifically built to process hard and brittle materials with high precision, including natural stone, refractory bricks, quartz glass, graphite, and fiberglass (FRP).

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Buy directly from our factory to eliminate middleman markups. We provide processing plants with heavy-duty machines at factory-direct prices, helping you lower equipment costs and shorten your payback period.

Wholesale Supply & Customized Solutions

We offer profitable wholesale programs for global distributors. For specialized applications, our engineering team provides OEM/ODM customization—adjusting machine dimensions, motor power, and CNC parameters to fit your exact material workflow.

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