What size is a standard cutting wheel?
What are the specifications and models of cutting discs? How to maintain a cutting machine?
- Ultra-Thin Series: 105×1.2×16mm, 180×1.2×22mm, etc.
- Stainless Steel Series: 100×2×16mm, 400×3.2×32mm, etc.
- Cast Iron Series: 100×2×22mm, 180×1.2×22mm, etc.
- Pneumatic Tool Series: 100×2×22mm, 180×1.2×22mm, etc.
Cutting discs belong to the category of grinding wheels. They are thin sheets made of abrasives and bonding agents (such as resin) and are used for cutting ordinary steel, stainless steel, metals, and non-metallic materials. They are classified into resin cutting discs and diamond cutting discs.
Cutting discs are mainly divided into fiber-resin cutting discs and diamond cutting discs based on material:
- Resin Cutting Discs: These use resin as the bonding agent and fiberglass mesh as reinforcement. They are highly effective for cutting difficult materials such as alloy steel and stainless steel. Available in dry and wet cutting styles, they ensure stable cutting precision. Selecting the right material and hardness can significantly improve cutting efficiency and reduce production costs.
- Diamond Cutting Discs: These are cutting tools widely used for processing hard and brittle materials such as stone, concrete, precast slabs, old and new roads, and ceramics. A diamond cutting disc consists of two parts: the base and the segment. The base supports the segment, which performs the cutting. The segment wears down over time, while the base remains intact. The cutting ability comes from the diamond particles embedded in the segment, which is the hardest known material. These particles are held in place by a metal matrix.
How to Maintain a Cutting Machine?
- Always disconnect the power before performing any maintenance or repairs.
- Use the correct blade: Ceramic cutting machines use diamond blades, which should not be used to cut metal or for curved cuts.
- Inspect new blades for cracks, chips, or bends before installation, and test-run after mounting.
- Replace dull blades promptly, as they can strain the motor. Alternatively, use a refractory brick to sharpen the blade.
- Motor protection: If the motor stops automatically due to overheating (S6 duty cycle), wait about 10 minutes before restarting.
- Ensure proper grounding and keep children away from the machine.
- Regularly check safety guards and other loose components.
- Replace blades periodically—dull blades damage the motor and reduce cutting quality and efficiency.
- Avoid moisture exposure: Keep electrical components dry to prevent damage.
- Post-use care: Drain and clean the water basin (for wet cutting machines) and dry all parts to prevent rust.
What Are the Specifications of Angle Grinder Cutting Discs?
Angle grinder cutting disc specifications include:
- Diameter: The outer diameter of the disc (common sizes: 100mm, 115mm, 125mm, 150mm).
- Thickness: The width of the disc (common sizes: 0.6mm, 0.8mm, 1mm, 1.2mm, 1.6mm).
- Bore Size: The inner hole diameter for mounting (common sizes: 16mm, 20mm, 22.2mm, 25.4mm).
Introduction to Cutting Disc Specifications
Different manufacturers produce varying specifications, but all cutting discs are defined by three parameters: outer diameter (e.g., 400mm), thickness (e.g., 1.2mm), and bore size (e.g., 32mm).
- Non-reinforced cutting discs: 180×0.3mm×32, 180×0.4mm×32, etc.
- Reinforced cutting discs: 180×0.5mm×32, 180×0.6mm×32, etc.
Common Cutting Tools and Usage Guidelines
Angle Grinder Cutting Discs:
- Common sizes: ϕ100×2mm, ϕ125×2mm, ϕ150×2mm, ϕ180×2mm (for steel, pipes, and aluminum).
- Ultra-thin discs: ϕ100×1mm, ϕ105×1mm, etc. (for precision cuts on stainless steel, copper, and aluminum).
Chop Saw Blades:
- Sizes: ϕ300mm, ϕ350mm, ϕ400mm (for standard and stainless steel profiles).
Grinding Wheels (Flap Discs):
- Used for deburring, weld removal, and surface finishing (common sizes: ϕ100×6mm, ϕ125×6mm, etc.).
Wet Cutting Blades:
- Designed for use with water cooling to reduce heat and dust (common sizes: ϕ107mm–ϕ250mm).
Concrete/Asphalt Blades:
- Specialized for road cutting (common sizes: ϕ350mm–ϕ520mm).
Wire Brushes & Flap Discs:
- For rust removal and surface preparation (wear protective gear to prevent wire breakage).
Abrasive Wheels:
- Used in bench grinders or handheld grinders (check for cracks, balance, and RPM compatibility before use).
Safety Reminders:
- Always wear PPE (goggles, gloves, masks).
- Ensure proper blade installation and rotation direction.
- Follow cooling/lubrication requirements (especially for wet cutting).
- Regularly inspect and replace worn-out discs.
This information is compiled from industry sources to provide accurate reference data on cutting disc specifications and machine maintenance.
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