Drive Your Output, Built to Last

FUJI “KOSOKU" POWER TOOLS
  • Air Grinder (FAG-100B) with Grinding Wheels
  • Air Grinder (FAG-/125B) with grinding discs
  • FUJI Air Grinder (FAG-150B)
  • Size of FUJI Air Grinder (FAG-100B)
  • Size of FUJI Air Grinder (FAG-125B)
  • Size of FUJI Air Grinder (FAG-150B)
  • Height of FUJI Air Grinder 80mm
  • Size of FUJI Air Grinder (FAG-125B) 240*80mm
  • Size of FUJI Air Grinder (FAG-150B) 260*100mm
  • Handle of FUJI Air Grinder
  • Air Grinder (FAG-100B) with Grinding Wheels
  • Air Grinder (FAG-/125B) with grinding discs
  • FUJI Air Grinder (FAG-150B)
  • Size of FUJI Air Grinder (FAG-100B)
  • Size of FUJI Air Grinder (FAG-125B)
  • Size of FUJI Air Grinder (FAG-150B)
  • Height of FUJI Air Grinder 80mm
  • Size of FUJI Air Grinder (FAG-125B) 240*80mm
  • Size of FUJI Air Grinder (FAG-150B) 260*100mm
  • Handle of FUJI Air Grinder

4" & 5" Light Air Grinder from FUJI, Japan

No.FAG-100B/FAG-125B/FAG-150B

Key Features

  • Non-Electric Safety: Ideal for work sites where electricity use is difficult or hazardous.
  • Industrial Grade: Perfect for heavy grinding in shipbuilding, bridge building, and construction machinery.
  • Side Exhaust: User-friendly side exhaust design directs air away from the operator.
  • Ergonomic Handle: Optimized handle angle design ensures simple and comfortable operation.

Specifications

Specification of FUJI 100/125/150mm Air Angle Grinder
Operation Note: Requires a stable compressed air source. Please ensure your air compressor meets the necessary CFM requirements for continuous operation.
  • Air Grinder (FAG-100B) with Grinding Wheels
  • Air Grinder (FAG-/125B) with grinding discs
  • FUJI Air Grinder (FAG-150B)
  • Size of FUJI Air Grinder (FAG-100B)
  • Size of FUJI Air Grinder (FAG-125B)
  • Size of FUJI Air Grinder (FAG-150B)
  • Height of FUJI Air Grinder 80mm
  • Size of FUJI Air Grinder (FAG-125B) 240*80mm
  • Size of FUJI Air Grinder (FAG-150B) 260*100mm
  • Handle of FUJI Air Grinder
  • Description

  • Cautions

  • Electrical Symbol

Overview: Industrial Pneumatic Power

Experience unmatched grinding performance with the FUJI High-Power Air Angle Grinder (FAG Series). Engineered for industrial toughness, these tools combine a slim body with a lightweight build to deliver effortless maneuverability in tight spaces and overhead tasks.

Key Features

  • Non-Electric Safety: Perfect for work sites where electricity is difficult to access or hazardous (e.g., damp environments).
  • High Power-to-Weight: Delivers high output in a lightweight package.
  • Operator Comfort: Easy-to-use side exhaust type directs air away from the user.
  • Smart Design: Simple handle angle design reduces wrist strain.
  • Quick Change: Equipped with a Spindle Lock System for fast wheel replacement.
Fuji FAG Series Air Grinders Lineup

Model Lineup

FAG-100B (4") Fuji FAG-100B 4 inch Air Grinder
FAG-125B (5") Fuji FAG-125B 5 inch Air Grinder
FAG-150B (6") Fuji FAG-150B 6 inch Air Grinder

Technical Specifications

Model Wheel Size Air Consumption m³/min Lock System Exhaust
FAG-100B 100 mm (4 inch) 0.85 Spindle Lock Side Exhaust
FAG-125B 125 mm (5 inch) 0.85 Spindle Lock Side Exhaust
FAG-150B 150 mm (6 inch) 1.2 Spindle Lock Side Exhaust

Standard Accessories: Hexagonal pole wrench (1pc), Side handle (1pc), Wheel (1pc). The hose nipple is connected to the body.

Why Choose FUJI Air Grinders?

🚢 Ideal for Shipbuilding In environments where electric sparks or water are concerns, air grinders offer a safer, more reliable alternative. They run cooler and can be stalled without damaging the motor.
🏗️ Heavy-Duty Construction Designed for bridge building, construction machinery, and general factories. The robust internal air motor withstands continuous heavy loads better than many electric counterparts.
🔧 Slim Body Design The absence of bulky copper windings allows for a slimmer profile, making it easier to grip and maneuver in restricted spaces inside ship hulls or steel frames.
💨 Side Exhaust System Directs exhaust air away from the workpiece and the operator, preventing dust from blowing into your face and keeping the work area visible.
Operation Note: Requires a stable compressed air source. Ensure your air compressor meets the CFM requirements for continuous operation.

Frequently Asked Questions

Q: What is the advantage of an air grinder over an electric one?
A: Air grinders are lighter, run cooler, and eliminate electrical shock hazards. They are ideal for heavy-duty industrial use where tools run continuously or in damp environments like shipyards.
Q: Does the FAG series come with a grinding wheel?
A: Yes, one grinding wheel is included in the package, along with a side handle and wrench.
Q: Does this grinder feature a spindle lock?
A: Yes, the FAG-100B, 125B, and 150B all feature a spindle lock system, making wheel changes quick and easy without needing two wrenches.

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 RegionSafety Factor (Burst Multiplier)Safety Logic & Benchmark
FUJI (High Precision)> 2.0xEngineered to exceed JIS requirements for maximum reliability.
Japan (JIS R 6242)2.0xExtreme Safety: A wheel rated at 80m/s must withstand a 160m/s burst test.
Europe (EN 12413)$1.73xRisk Balanced: Provides high safety redundancy for most industrial apps.
USA (ANSI B7.1)1.5xEfficiency 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.

🛡️ Electrical Appliance & Safety Compliance

This product strictly complies with the Electrical Appliance and Material Safety Technology Standards (Noise Countermeasures), revised under the Ministry of Economy, Trade and Industry (METI) Ordinance No. 57.

*Official Enforcement Date: April 1, 2013. This ensures maximum electromagnetic compatibility (EMC) and operational stability in industrial environments.

How to Read Operational & Safety Symbols

Fuji Tool Safety Symbols Chart

Key Safety Indicators:

  • Double Insulation: Marked by the "square-in-a-square" symbol, indicating no grounding is required for safe operation.
  • Noise Suppression: Compliance with Ordinance No. 57 prevents interference with other electronic equipment.
  • Mandatory PPE: Visual cues for hearing, eye, and respiratory protection.

Professional Note: For global industrial procurement, these Japanese METI standards ensure that Fuji tools meet high-level noise reduction requirements, critical for precision workshops across Europe and North America.