In an evolving market where major manufacturers like FEIN and Bosch are phasing out or modifying their 300Hz models, industrial operators are facing a gap in high-performance tools. FUJI remains the leader in high-frequency power tools, filling this void with over 30 years of proven reliability in the Japanese market.
Our 250Hz system offers the perfect balance of rotational speed and torque stability. It is specifically designed to minimize operator fatigue and maximize material removal rates in foundries, shipyards, and heavy fabrication shops.
Unlike standard electric tools or increasingly scarce 300Hz alternatives, FUJI’s 250Hz technology delivers consistent power without burning out motors. Here is the technical advantage:
Unmatched Durability: The 250Hz frequency reduces mechanical stress on gears and motor coils compared to higher-stress 300Hz systems, significantly extending the tool's lifespan.
Constant Speed Under Load: The specialized High-Frequency Generator (Converter) ensures the grinder maintains high RPM even when pressed hard against steel or cast iron—delivering 3-5 times higher efficiency than conventional universal motor angle grinders.
A Proven Replacement: Manufactured under strict JIS (Japanese Industrial Standards), this system is the ideal upgrade for facilities looking to replace discontinued European high-frequency models.
Vibration-Dampening Ergonomics: Equipped with a specialized handle that absorbs heavy vibrations, protecting operators from HAVS (Hand-Arm Vibration Syndrome) during prolonged shifts.
Plug-and-Play Mobility: The FG-505NE Converter features a lightweight, wheel-mounted design, allowing workers to easily move the power source between workstations in shipyards or large casting floors.
Versatile Compatibility: The 7-inch (180mm) grinder works with a wide range of abrasive wheels (Aluminum Oxide, Zirconia, etc.) for both ferrous and non-ferrous metals.
Safety First: Fully compliant with modern noise and electrical safety standards.
| Specification | Details |
| Product Type | High-Frequency Angle Grinder & Generator Combo |
| Operating Frequency | 250Hz (The industrial sweet spot for durability) |
| Wheel Diameter | 7 inches (180 mm) |
| Power Supply | Must be paired with FUJI FG-505NE or compatible 250Hz Generator |
| Applications | Heavy weld removal, gate cutting (foundry), beveling, surface finishing |
| Compliance | JIS (Japanese Industrial Standards) Certified |
⚠️ Critical Note: This grinder is strictly for use with a 250Hz power source. Do not connect to standard 50/60Hz outlets or 300Hz generators to avoid catastrophic motor damage.
This combo is the preferred choice for sectors requiring aggressive material removal:
Foundries: Rapid removal of gates, risers, and excess metal from large castings (steel, iron, bronze).
Shipyards: Efficient smoothing of long weld seams and surface preparation for hull plating.
Steel Fabrication: Heavy-duty grinding of structural steel beams and bridge components.
Railways: Maintenance and repair of tracks and rolling stock.
Q: Can I use this 250Hz grinder with my existing 300Hz power source (e.g., from Bosch or FEIN)?
A: No. Connecting a 250Hz tool to a 300Hz power source can cause motor instability, overheating, and premature gear failure. For optimal performance and safety, you must use the dedicated FUJI High-Frequency Generator.
Q: How does this compare to a standard pneumatic (air) grinder?
A: The FUJI High-Frequency electric system offers significantly more consistent torque than pneumatic tools, which often slow down (lose RPM) when air pressure drops in the factory lines. It is also far more energy-efficient than running large air compressors.
Q: Is the generator portable?
A: Yes. The FG-505NE converter features a compact frame and rugged wheels, making it easy for a single operator to transport across job sites.6
Don't let equipment downtime slow your production. Switch to the proven durability of FUJI’s Japanese engineering.
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