Engineered for Railway Precision & High-Speed Cutting
The FUJI 305mm and 355mm High-Speed Resin Cutting Discs (Type A) are specialized abrasive tools engineered to meet the rigorous demands of railway track maintenance and heavy-duty metal fabrication. Built with a unique 4.5mm thickness and high wheel density, these discs are highly economical and exceptionally durable, designed to withstand the extreme stress of cutting hardened rail steel and other robust metal profiles.
Whether you are performing emergency track repairs with a gas engine cutter or scheduled steel fabrication, our optimized structural design ensures stability, safety, and rapid speed, making it the preferred choice for industrial professionals worldwide.
The FUJI Advantage: 70+ Years of Manufacturing Synergy
With a legacy spanning over 70 years, FUJI GRINDING WHEEL stands as a unique pillar in Japanese industrial manufacturing. We are proud to be the only Japanese enterprise that independently manufactures both electric power tools and abrasive grinding wheels.
Because we engineer both the machine and the consumable, we possess an unmatched understanding of how to achieve the perfect synergy between the two. This deep expertise ensures that when you pair a FUJI cutting disc with our tools, you achieve the ultimate balance of labor-saving efficiency, superior cut quality, and extended equipment lifespan.
Perfect Pairing: FUJI Kosoku Metal Cutting Machines
While our 305mm and 355mm railway discs are fully compatible with standard gas-powered rail saws, they unlock their true potential when paired with FUJI Kosoku Metal Cutting Machines.
For cutting general steel materials, pipes, and structural profiles, integrating our 4.5mm thick resin discs with Kosoku high-speed cut-off machines guarantees an economical, lightning-fast, and highly durable cutting experience. This combination significantly reduces operator fatigue while maximizing daily throughput.
Why Choose FUJI for Track & Steel Maintenance?
🚀 High Cutting Efficiency Rapid cutting speeds minimize track occupancy time. Our advanced abrasive grain structure ensures aggressive cuts, helping teams finish jobs faster and keeping train networks on schedule.
⏳ Extended Service Life Featuring a robust 4.5mm thickness. This extra durability prolongs the service cycle, reducing the frequency of disc changes and substantially lowering tool consumption costs.
🛡️ Superior Cut Quality Delivers smooth, clean cuts that require minimal post-cut grinding. High-quality construction ensures precision, laying the perfect foundation for seamless rail welding and connections.
🔧 Heavy-Duty Bond The specialized "Type A" formulation is tuned for high-tensile steel, preventing wheel glazing and ensuring consistent, economical performance even under heavy downward pressure.
Technical Specifications
Designed for high-speed gas engine cutters and Kosoku electric cut-off saws. Please verify compatibility with your machine's RPM rating before operation.
Dimensions (mm)
Thickness
Arbor (Hole)
Spec / Grade
Max Speed
Package Qty
305 mm (12")
4.5 mm
25.4 mm
A24R BF
5,000 m/min
25 pcs
355 mm (14")
4.5 mm
25.4 / 22 mm
A24R BF
5,000 m/min
25 pcs
Applications & Compatibility
The FUJI high-speed disc series offers broad applicability across various industrial scenarios:
Target Materials
Engineered to effortlessly cut through Standard Rail Steel, Cast Iron Pipe, Hardened Steel, and Stainless Steel components.
Equipment Compatibility
Gas/Petrol Engine Cutters: Fully compatible with high-speed rail saws equipped with rail clamps (e.g., Stihl, Husqvarna).
FUJI Kosoku Cut-Off Saws: Designed to integrate flawlessly with Kosoku metal cutting machines for general steel fabrication.
Portable Systems: Designed for both fixture-mounted and hand-held operations where safety regulations permit.
⚠️ Safety First
Railway and heavy steel cutting involves extreme speeds and heavy materials. Always wear full PPE (Personal Protective Equipment) including face shields, heavy-duty gloves, and hearing protection. Ensure the rail or steel profile is securely clamped before cutting to prevent disc binding or hazardous kickback.
Frequently Asked Questions (FAQ)
Can the FUJI 305/355mm railway disc cut other materials besides train tracks?
Yes. While specifically formulated for hardened rail steel, these discs perform exceptionally well on standard steel profiles, cast iron pipes, and stainless steel, especially when paired with FUJI Kosoku metal cutting machines.
Why is the 4.5mm thickness important?
The 4.5mm thickness adds essential lateral stability when operating at high speeds (up to 5,000 m/min). This prevents the disc from warping during aggressive cuts, ensures enhanced safety, and provides a much longer, economical service life compared to standard thinner discs.
What makes FUJI different from other abrasive brands?
FUJI is the only Japanese manufacturer with over 70 years of history producing both electric tools and grinding wheels. This dual-manufacturing capability allows us to optimize our cutting discs to work in perfect harmony with power tools, saving labor and increasing efficiency.
Need a different size or technical specification? Explore our comprehensive range of industrial abrasive solutions here: View All FUJI CUT OFF WHEELS.
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
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 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.
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
Selection of grains (A, WA, AZ, etc.) based on material hardness and grinding precision.
Warning Symbol Interpretation
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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