In the demanding world of industrial metal fabrication, efficiency is the key to profitability. Recently, a German customer visited our facility to experience the FUJI HGP-4260 High-Frequency Angle Grinder firsthand.
Known for their uncompromising engineering standards, the customer's reaction to the HGP-4260's performance validates why Fuji's 400Hz high-frequency technology is the future of heavy-duty grinding.
Live Demo: Constant Torque Test
On-site Performance Verification
Unlike standard grinders that bog down under pressure, the HGP-4260 operates at 400Hz, delivering a massive 2600W of power while maintaining an incredibly lightweight profile of just 3.5kg. This exceptional power-to-weight ratio makes it highly suitable for routine ship maintenance and heavy foundry grinding.
The secret lies in its core engineering. The HGP-4260 departs from conventional designs by utilizing a "pot-type" top-to-bottom motor structure. It features a high-speed asynchronous Squirrel Cage Motor (Brushless DC structure). Because it does not rely on traditional carbon brushes or commutators, this tool offers significant advantages:
| Feature | Standard Electric/Pneumatic | Fuji HGP-4260 (400Hz) |
|---|---|---|
| Speed Under Load | Drops significantly (Bogging) | Constant Torque (No Speed Drop) |
| Safety Standard | Single-Phase 220V | 3-Phase 200V (Higher Electrical Safety) |
| Motor Maintenance | Frequent Carbon Brush Changes | Brushless Squirrel Cage (Low Maintenance) |
| Weight-to-Power | Heavy & Bulky / Air Pressure Dependent | Compact & Lightweight (3.5kg / 2600W) |
A: The most significant advantage is zero speed drop under heavy loads, guaranteeing maximum material removal rates. Furthermore, utilizing a 3-phase 200V power supply offers superior electrical safety compared to standard single-phase 220V tools. At just 3.5kg with 2600W output, it is exceptionally robust—perfect for heavy-duty grinding at mobile workstations.
A: Yes. For overseas foundries and shipyards already utilizing 300Hz power supplies, we have engineered the HGC-3902 (7-inch/180mm, 2600W) angle grinder and the HIC-3802 (1600W) straight grinder. Both weigh under 5kg and serve as ideal, modern replacements for aging, heavy FEIN high-frequency tools. For confined spaces, our lightweight 250Hz models (HGC-300 and HIC-250II) can also be adapted to 300Hz. Looking ahead, we are developing a massive 9-inch (230mm) high-frequency grinder for ultra-heavy casting demands.
A: Current FUJI grinders utilize a semi-enclosed structure (similar to Bosch's design) to ensure superior airflow cooling and minimal weight. However, in harsh foundry environments with heavy metallic dust, proactive maintenance is vital. We strongly recommend using high-pressure compressed air daily after shifts to clean the rear ventilation slots. This prevents dust accumulation on the motor coils and maximizes lifespan. For intense operations, equipping each grinding stand with multiple grinders to rotate usage prevents thermal overload.
With over 70 years of pioneering Japanese engineering, FUJI GRINDING WHEEL stands alone as the unique manufacturer in Japan producing both industrial-grade abrasive discs (via advanced hot-press technology) and heavy-duty power tools. This dual-expertise allows us to perfectly synchronize our tools with solutions like the FUJI Super F2 (24S) wheels, ensuring maximum safety, lowest vibration, and unrivaled material removal rates. Choosing FUJI means investing in relentless reliability and lowering your operational costs.
Looking for different applications or specific tool configurations? We invite you to explore our comprehensive product categories to find the perfect match for your fabrication needs. If you have any technical inquiries, our expert team is ready to assist you.
