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 powered by the FG-505NE rotary high-frequency generator.
Designed for extreme environments like foundries and shipyards, it delivers a massive 2100W of input power. FUJI reports that speed during loaded grinding can remain at approximately 95% of the no-load level. This describes speed retention under comparable working conditions, not a guarantee of zero speed drop at any load. Actual performance depends on the wheel, material, contact pressure and power supply.
| Model | HGC-902 (Paired with FG-505NE Generator) |
|---|---|
| Motor Type | Three-Phase Squirrel-Cage Induction Motor |
| Frequency | 250Hz; three-phase 200V tool supply |
| Rated Power | 2100W |
| Wheel Capacity | T27 depressed-centre grinding wheels: 180 × 6 or 7 × 22.23 mm; rated for 80 m/s |
| Weight | Confirm the grinder and generator weights separately for installation and handling. |
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: Select the tool and high-frequency power supply to match the customer's installed power configuration and equipment ratings. This 250Hz combination is not a direct power supply for a 300Hz HGC-3902.
A: Yes. The HGC-902 operates at 250Hz (High Frequency). You cannot plug it into a standard 50Hz/60Hz wall outlet. This combination uses the FG-505NE High-Frequency Generator. Any alternative power supply must be explicitly compatible with the tool voltage, frequency, phase, capacity and connections.
A: Under loaded grinding, FUJI reports speed retention of approximately 95% of the no-load level. Compared with a conventional grinder that slows significantly under the same working conditions, this can support more consistent material removal. The percentage describes speed retention, not a guaranteed productivity increase. No carbon brush replacement is required.
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: Use T27 grinding wheels measuring 180 × 6 or 7 × 22.23 mm and rated for 80 m/s. Check that the wheel maximum RPM is at least the tool maximum RPM, and confirm flange, guard and permitted working-face compatibility. For suitable ferrous-metal applications, consider FUJI Super F2 High-Performance Wheels selected for the workpiece material and grinding task.
A: Absolutely. We provide full technical diagrams and spare parts availability. Contact our technical team with the model, serial number and fault details to confirm troubleshooting and parts arrangements.
The FG-505NE is a mechanical rotary high-frequency generator, not an electronic inverter. Mechanical rotation and the rotor/stator tooth-and-slot geometry work together through electromagnetic induction to produce the high-frequency output.
Input configurations are available for three-phase 200V or 380V, 50Hz or 60Hz, subject to the ordered specification. Confirm the exact input and 250Hz, 200V output configuration on the quotation and nameplate; do not assume one unit automatically accepts every input option.
The matched combination is FG-505NE with HGC-902. The manufacturer compatibility table lists capacity for two HGC-902 grinders on a compatible generator. The number of grinders, cables and accessories supplied is determined by the quotation.
This combination is supplied to order and is not held in stock. The estimated lead time is approximately 60 days. Freight is charged separately; the delivery schedule, transport arrangements and order terms are confirmed in the quotation.
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.
