The FUJI HGC-902 High-Frequency Angle Grinder (paired with the FG-505NE Generator) represents a paradigm shift in industrial metalworking. Unlike standard power tools that struggle under pressure, this system utilizes a robust Squirrel-Cage Induction Motor driven by a 250Hz frequency inverter.
Designed for extreme environments like foundries and shipyards, it delivers a massive 2100W of power output. The intelligent motor design adjusts torque based on load resistance, ensuring the grinder maintains high RPMs even during the heaviest grinding applications—something traditional 1400W tools cannot achieve.
| Model | HGC-902 (Requires FG-505NE Generator) |
|---|---|
| Motor Type | Three-Phase Squirrel-Cage Induction Motor |
| Frequency | 250Hz (Japanese JIS Standard) |
| Max Power Output | 2100W (Variable based on load) |
| Wheel Capacity | 7 Inches (180mm) |
| Weight | Lightweight design for reduced operator fatigue |
To fully utilize the high torque of the HGC-902, we recommend pairing it with the FUJI Super F2 7-inch Grinding Wheel. Its advanced bond structure withstands high-speed rotation and aggressive pressure without glazing.
To ensure the longevity of your high-frequency investment, proper daily maintenance is critical.
Legacy of "Kosoku" (High Speed): Since 1953, Fuji Grinding Wheel has defined the Japanese standard for industrial metalworking. Our "Kosoku" high-frequency tools are not repurposed consumer gadgets; they are purpose-built for the brutal conditions of shipyards and foundries.
Direct OEM Guarantee: We manufacture in our own factories in Japan and Thailand. By controlling the entire supply chain—from the generator to the motor to the abrasive wheels—we guarantee system compatibility and durability that third-party assemblers cannot match.
250Hz: We stick to the robust 250Hz standard because it offers the perfect balance of speed and motor longevity, reducing the mechanical stress seen in higher frequency competitors.

A: Yes. The HGC-902 operates at 250Hz (High Frequency). You cannot plug it into a standard 50Hz/60Hz wall outlet. It requires the FG-505NE High-Frequency Generator to convert the power, ensuring high torque and constant speed.
A: Standard electric grinders lose RPMs when you push down hard. The FUJI High-Frequency system maintains its rated speed even under heavy load, removing metal up to 300% faster. Plus, the motor has no brushes to replace.
A: Never. This tool uses a Squirrel-Cage Induction Motor, which is brushless. This significantly reduces maintenance downtime and parts costs compared to universal motors.
A: Yes, it accepts standard 180mm (7") wheels with a 22.23mm hole. However, for best performance, we recommend FUJI Super F2 High-Performance Wheels designed to withstand the high torque without glazing.
A: Absolutely. We provide full technical diagrams and spare parts availability. Since the motor is dust-proof and brushless, failures are rare, but our support team is available 24/7 for troubleshooting.
Maximize your productivity by pairing this tool with our premium Grinding Wheels and compatible HF Generators. Discover the engineering behind our brand at Our Factory, or Contact Sales for a custom quote today.
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. |
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.
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.
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.

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.
