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FUJI Cut-Off Wheels/Discs
  • Fast Cut-off Wheels of double reinforced type (Super Raicho II) with grinder
  • Durable cutting performance with Fuji Super Raicho CUTTING wheels
  •  Cut-off Wheels  A30S BF2
  • a worker use Raicho cutting discs to cut off the steel bar at one building site
  • package of cut off wheels A30S BF2
  • package of cut off wheels A36P  BF2
  • Label information of FUJI ctting Wheels
  • Fast Cut-off Wheels of double reinforced type (Super Raicho II) with grinder
  • Durable cutting performance with Fuji Super Raicho CUTTING wheels
  •  Cut-off Wheels  A30S BF2
  • a worker use Raicho cutting discs to cut off the steel bar at one building site
  • package of cut off wheels A30S BF2
  • package of cut off wheels A36P  BF2
  • Label information of FUJI ctting Wheels

FUJI Super Raicho II 106mm Cutting Discs for Steel & Stainless Steel

No.Super Raicho II-2.2/2.4mm

FUJI Super Raicho II 106mm cutting discs — made in Japan, designed for durable cutting with compatible 4-inch-class angle grinders approved for 106mm wheels.

  • Silver: 106 x 2.2mm, A36P — dedicated to stainless steel cutting.
  • Gold: 106 x 2.4mm, A30S — for ordinary carbon steel cutting.
  • Bore: 15mm for the Japanese domestic version; 16mm for the export version. Select the bore that matches the approved mounting system.
  • Maximum peripheral speed: 80m/s; obey the maximum RPM marked on the supplied wheel.
  • Construction: Japanese warm-press process, selected corundum, Sumitomo phenolic resin and two layers of alkali-free fiberglass mesh.
  • Standard: complies with JIS R 6214:2006 for resinoid cutting-off wheels.

The larger 106mm diameter provides additional wear allowance compared with 100mm at the same usable minimum diameter. Cutting only: never apply side pressure or use for grinding.

  • Fast Cut-off Wheels of double reinforced type (Super Raicho II) with grinder
  • Durable cutting performance with Fuji Super Raicho CUTTING wheels
  •  Cut-off Wheels  A30S BF2
  • a worker use Raicho cutting discs to cut off the steel bar at one building site
  • package of cut off wheels A30S BF2
  • package of cut off wheels A36P  BF2
  • Label information of FUJI ctting Wheels
  • Description

  • Instruction for Use

  • Cautions

FUJI Super Raicho II 106mm Cutting Discs: Silver and Gold

Made in Japan, FUJI Super Raicho II 106mm cutting discs provide durable cutting for two distinct applications: the silver 2.2mm A36P wheel for stainless steel and the gold 2.4mm A30S wheel for ordinary carbon steel. Choose the version by material, then confirm the mounting bore and grinder compatibility.

The 106mm diameter provides more radial wear allowance than a 100mm disc when compared at the same usable minimum diameter. Actual cuts per wheel depend on material, section, machine and technique; diameter alone does not establish a fixed life improvement.

Japanese Manufacturing and Reinforcement

Both versions use a Japanese warm-press process, selected corundum abrasive, Sumitomo phenolic resin and two layers of alkali-free fiberglass mesh. Manufactured in Japan to comply with JIS R 6214:2006 for resinoid cutting-off wheels, they are designed for durable straight cutting. Reinforcement does not permit side grinding or twisting.

Why Choose Super Raicho 2.2/2.4mm?

🛡️ Ultra-Durable Thickness The 2.2mm and 2.4mm profiles provide superior rigidity compared to thin (1mm) discs. These are cut-off wheels only. Thickness does not permit side loading, twisting or side grinding. Compare service life under the same cutting conditions.
⚡ Double Fiber Reinforcement Equipped with double-sided cross-fiber mesh (BF2). This enhances structural integrity, but does not eliminate breakage risk or permit misuse. Confirm applicable product documentation for the supplied version.
🔧 Application-Specific Design Silver A36P is the stainless steel specification; gold A30S is for ordinary steel. In these markings, 36 and 30 identify grit size, while P and S identify wheel grade (bond holding strength).
💰 Cost Efficiency Evaluate durability by accepted cuts per wheel and time per cut on the same workpiece. This provides a practical basis for comparing wheel consumption and replacement frequency.

Technical Specifications

Use only a grinder and cutting guard approved for a 106 mm wheel, with the correct mounting arrangement. The Japanese domestic version has a 15mm bore; the export version has a 16mm bore. These are alternative product versions, not interchangeable mounting sizes. A 100mm or 4-inch machine rating alone does not establish approval for 106mm. Do not remove the guard or modify the bore to make a wheel fit.

Dimensions (mm) Type / Grade Application Max Speed Package Qty
106 x 2.4 x 15 or 16 A30S BF2 Gold: ordinary carbon steel 80 m/s
Maximum RPM: follow wheel label
200 pcs
(10 boxes x 20)
106 x 2.2 x 15 or 16 A36P BF2 Silver: stainless steel 80 m/s
Maximum RPM: follow wheel label
200 pcs
(10 boxes x 20)

Choosing the Right Version

Silver 2.2mm A36P: choose for stainless steel tubing, bars and fabrication components. Gold 2.4mm A30S: choose for ordinary steel bars, tubes, angles and general fabrication. For very thin sheet where kerf width matters most, compare an appropriately rated thinner disc.

Maximum peripheral speed: 80m/s. This is a rim-speed limit, not RPM. Follow the maximum RPM printed on the supplied wheel and ensure the grinder does not exceed it.

Ideal Applications

These discs are the preferred choice for professionals in:

  • Metal Fabrication: Cutting structural steel, angle iron, and pipes.
  • Automotive Repair: Cutting chassis components and rusty bolts.
  • Construction: Rebar cutting and general on-site metalwork.
  • Heavy Industry: Repeated steel cutting within the capacity of the approved grinder and guard.
💡 Pro Tip: For cutting stainless steel, ensure you do not apply excessive pressure. Let the abrasive grain do the work. Clamp and support the workpiece so the kerf cannot close on the wheel. Keep the wheel aligned with the cut; do not apply side pressure.

Frequently Asked Questions (FAQ)

Q: Why use a 2.4mm disc instead of a 1mm disc?

A: Compare kerf width, cutting time, disc wear and burr formation on your workpiece. A thicker disc is not automatically safer and is not intended to tolerate twisting or side grinding. Select the thickness and grade approved for the task and machine.

Q: What does "BF2" mean in the specs?

A: "BF" stands for Bakelite (Resin) bond with Fiber reinforcement. The "2" indicates double-sided reinforcement, supporting the wheel structure. It is not a standalone certification or a guarantee against breakage.

Q: Can this cut Stainless Steel?

A: Select the silver 106 x 2.2mm A36P version for stainless steel pipe, bar and sheet. The gold 106 x 2.4mm A30S version is intended for ordinary carbon steel. Keep stainless steel tools separate from carbon steel work to reduce contamination.

About FUJI Grinding Wheel

Fuji Grinding Wheel is a premier manufacturer of industrial abrasives with over 70 years of Japanese engineering heritage. Our mission is to enhance productivity through safe, durable, and high-performance grinding solutions.

FUJI Grinding Wheel Factory in Japan

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Abrasive Wheel Selection & Technical Parameters Guide

Choosing the correct abrasive wheel is critical for both operational efficiency and JIS-compliant safety. Fuji Grinding Wheels are engineered with precise technical markings to ensure the perfect match for your specific material and machine requirements.

Understanding Fuji Markings (e.g., WA 36 P BF)

  • Abrasive Type (WA/A/AZ): Determines the suitability for material hardness (e.g., WA for hardened steel, AZ for heavy-duty alloys).
  • Grit Size (16 - 120): Indicates the coarseness. Lower numbers for rapid removal; higher numbers for precision finishing.
  • Hardness Grade (L - S): Defines the bond strength. Correct selection prevents premature wheel wear or surface glazing.
  • Bonding Agent (BF): High-grade Resinoid bond reinforced for high-speed safety and impact resistance.

💡 Expert Selection Tip

For professional export markets, always verify the Peripheral Speed (m/s) compatibility. Fuji wheels are designed to exceed JIS Burst Speed factors, but operating at the recommended R.P.M. ensures the longest tool life and cleanest cut.

Note: Mismatched grit or hardness can lead to excessive heat buildup, affecting the workpiece's structural integrity.

Fuji Abrasive Technical Selection Chart

Fuji Abrasives Wheel Description of Marking

Global Maintenance Standard: To maintain the high safety factor of Fuji wheels, avoid exposure to excessive humidity and chemical solvents during storage. Proper care preserves the resinoid bond's strength, crucial for high-load industrial applications.

FUJI Industrial Quality & Safety Protocols

Fuji products are manufactured following strict Japanese standard process requirements. Every wheel is engineered to meet or exceed JIS (Japanese Industrial Standards), such as JIS R 6242 and B 4051. Our core engineering logic prioritizes maximum operator protection by maintaining safety factors and burst speed capabilities that often surpass the highest industry benchmarks.

Standard Region Safety Factor (Burst Multiplier) Safety Logic & Benchmark
FUJI (High Precision) > 2.0x Engineered to exceed JIS requirements for maximum reliability.
Japan (JIS R 6242) 2.0x Extreme Safety: A wheel rated at 80m/s must withstand a 160m/s burst test.
Europe (EN 12413) 1.73x Risk Balanced: Provides high safety redundancy for most industrial apps.
USA (ANSI B7.1) 1.5x Efficiency Focused: Relies on machine guarding and operational procedures.

⚠️ Essential Safety Cautions & Operational Integrity

  • 1. RPM Compliance: Never exceed the maximum R.P.M. specified on the wheel. Using the sides of the wheels for grinding is strictly prohibited, as it compromises the structural integrity of the abrasive bond.
  • 2. Mandatory Idling: Allow the tool to idle for one minute before beginning work. If a new wheel has been mounted, an idle run of three minutes is required to ensure dynamic stability.
  • 3. Workpiece Stability: All materials must be securely fastened. Improperly secured workpieces can lead to vibration, wheel binding, and unsafe kickback forces.
  • 4. Arbor Hole Integrity: Do not modify or enlarge the metal center of the arbor hole. A proper fit is critical; a mismatched arbor causes eccentric rotation and dangerous vibration levels.
  • 5. PPE Requirements: Industrial-grade face and eye protection are mandatory at all times. Ensure all protective gear meets local safety compliance standards.
  • 6. Guard Protection: Protection guards are designed to contain fragments in the unlikely event of a wheel failure. Never operate tools or machinery with guards removed.

Applications of Abrasives & Usage Notes

Abrasive Selection Guide

FUJI Abrasive Selection Table

Selection of grains (A, WA, AZ, etc.) based on material hardness and grinding precision.

Warning Symbol Interpretation

FUJI Usage Symbols and Cautions

Standardized safety icons for safe operation and protection guard usage.

Professional Export & Maintenance Insight

When deploying Fuji high-performance tools in overseas markets, ensure that the regional power grid frequency and voltage match the tool specifications. To maintain the superior burst speed safety of Fuji wheels, store abrasives in a dry, temperate environment. Humidity can degrade the resin bond, potentially lowering the wheel’s resistance to centrifugal forces.

FUJI Industrial Quality & Safety Protocols

Fuji products are manufactured following strict Japanese standard process requirements. Every wheel is engineered to meet or exceed JIS (Japanese Industrial Standards), such as JIS R 6242 and B 4051. Our core engineering logic prioritizes maximum operator protection by maintaining safety factors and burst speed capabilities that often surpass the highest industry benchmarks.

Standard Region Safety Factor (Burst Multiplier) Safety Logic & Benchmark
FUJI (High Precision) > 2.0x Engineered to exceed JIS requirements for maximum reliability.
Japan (JIS R 6242) 2.0x Extreme Safety: A wheel rated at 80m/s must withstand a 160m/s burst test.
Europe (EN 12413) 1.73x Risk Balanced: Provides high safety redundancy for most industrial apps.
USA (ANSI B7.1) 1.5x Efficiency Focused: Relies on machine guarding and operational procedures.

⚠️ Essential Safety Cautions & Operational Integrity

  • 1. RPM Compliance: Never exceed the maximum R.P.M. specified on the wheel. Using the sides of the wheels for grinding is strictly prohibited, as it compromises the structural integrity of the abrasive bond.
  • 2. Mandatory Idling: Allow the tool to idle for one minute before beginning work. If a new wheel has been mounted, an idle run of three minutes is required to ensure dynamic stability.
  • 3. Workpiece Stability: All materials must be securely fastened. Improperly secured workpieces can lead to vibration, wheel binding, and unsafe kickback forces.
  • 4. Arbor Hole Integrity: Do not modify or enlarge the metal center of the arbor hole. A proper fit is critical; a mismatched arbor causes eccentric rotation and dangerous vibration levels.
  • 5. PPE Requirements: Industrial-grade face and eye protection are mandatory at all times. Ensure all protective gear meets local safety compliance standards.
  • 6. Guard Protection: Protection guards are designed to contain fragments in the unlikely event of a wheel failure. Never operate tools or machinery with guards removed.

Applications of Abrasives & Usage Notes

Abrasive Selection Guide

FUJI Abrasive Selection Table

Selection of grains (A, WA, AZ, etc.) based on material hardness and grinding precision.

Warning Symbol Interpretation

FUJI Usage Symbols and Cautions

Standardized safety icons for safe operation and protection guard usage.

Professional Export & Maintenance Insight

When deploying Fuji high-performance tools in overseas markets, ensure that the regional power grid frequency and voltage match the tool specifications. To maintain the superior burst speed safety of Fuji wheels, store abrasives in a dry, temperate environment. Humidity can degrade the resin bond, potentially lowering the wheel’s resistance to centrifugal forces.

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