Engineered for Heavy-Duty Marine Propeller Manufacturing & Specialized Surface Restorations
As the manufacturing and technical team behind FUJI GRINDING WHEEL, we know firsthand the challenges our clients face in modern shipyards. Commercial vessels and naval warships rely on propellers cast from specialized non-ferrous alloys—primarily Nickel-Aluminum Bronze (NAB) and high-grade stainless steel. These materials are incredibly tough, ductile, and notoriously "sticky" during metalworking operations.
Our engineering team has observed that without stable tool speed and high torque, conventional grinders suffer from rapid wheel loading (clogging), which leads to severe work hardening on the workpiece. Because repairing complex three-dimensional hydrodynamic curves requires massive material removal, automation falls short. It demands reliable, manual heavy-duty grinding tools.
Backed by over 70 years of precision Japanese engineering, our own factories proudly manufacture the HGC-3902 300Hz 180mm High-Frequency Angle Grinder. Designed with a brushless, commutator-free asynchronous motor, it guarantees maximum linear velocity under punishing loads. It is built strictly Made in Japan to serve as the backbone tool for elite foundries worldwide.
Ergonomic at 4.8kg for continuous use, yet more powerful than the legacy FEIN MSfo-852-1d (1900W).
| Parameter | Specifications & Details |
|---|---|
| Model | HGC-3902 |
| Voltage | 3 Phase 200V |
| Frequency | 300 Hz |
| Ampere | 9.0A |
| Power Input | 2,600 W |
| No-Load Speed | 8,400 min−¹ |
| Wheel | Max φ180*8*22.23mm (80m/s) |
| Net Weight | 4.8kg (without cord) |
| Standard Accessories | Lock Nut Wrench (1pc), Grinding Wheel (1pc), Side Handle (1pc), Manual (1 copy) |
| Recommended Media | FUJI Green Star Semi-Flexible Wheel (180x6mm): • Rough Grinding (#24/#36): For massive material removal and gate cutting. • Semi-Finishing (#46/#60): For smoothing 3D curved profiles. |
We don't just test our tools in the lab. The FUJI HGC-3902 solves critical bottleneck problems across global heavy-industrial sectors:
Our team at FUJI GRINDING WHEEL holds a unique position in global trade: we are Japan's only manufacturer independently producing both high-end abrasive wheels and heavy-duty power tools for over 70 years.
By leveraging a dual-supply chain framework—with wholly-owned factories in Japan—we guarantee top-tier Japanese quality control alongside world-class volume capacity. We don't just sell hardware; we deliver a deeply integrated, perfectly matched grinding system optimized for your toughest alloys.
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.
