| Model Name | Wheel Dimensions (mm)(Outer Dia. x Thickness x Hole Dia.) | Rotation Speed (min⁻¹)(at 240Hz / 250Hz) | Dedicated Power Supply *1 | Current (A) | Power (W) | Weight *2 (Kg) | Cord Length (m) | Mounting Spindle (mm) |
|---|---|---|---|---|---|---|---|---|
| HIC-604N | Φ125 × 19 × Φ12.7 | 6960 / 7250 | 240/250Hz 3-Phase AC 200V | 3.8 | 950 | 4.6 | 5.0 | Inner Dia. 12.7 |
| HIC-604A | Φ125 × 19 × Φ12.7 | 6960 / 7250 | 240/250Hz 3-Phase AC 200V | 3.8 | 950 | 4.7 | 5.0 | Inner Dia. 12.7 |
With the phase-out of legacy high-frequency product lines from traditional mainstream brands and a tightening supply chain, the global foundry industry is facing a critical shortage of heavy-duty grinding tools. As the maintenance costs for existing aging equipment continue to rise, and conventional electric or pneumatic tools fall short in power and durability for 24/7 continuous operation, the market urgently requires a stable, highly efficient, industrial-grade alternative.
To fill this critical market gap, FUJI KOSOKU proudly introduces the HIC-604 250Hz High-Frequency Straight Grinder. Engineered and precision-manufactured with true Japanese craftsmanship, the HIC-604 is the direct, upgraded successor to the reliable HIC-603 model, specifically designed to match and outperform the technical standards of legacy German systems. By leveraging advanced manufacturing methodologies and strict Japanese industrial compliance guidelines, this heavy-duty industrial grinder machine delivers consistent, premium-grade durability and safety to high-intensity manufacturing environments worldwide.
FUJI HIC-604 high frequency straight grinder operating on heavy-duty cast iron grinding equipment in an industrial foundry workshop.
"During our recent operational tour at the Cologne International Hardware Fair, and subsequent on-site demonstrations across German and Czech foundries, operators consistently highlighted the HIC-604's exceptional vibration reduction. Under the guidance of our CTO, Mr. Zhong, our R&D team optimized the tool with an advanced semi-enclosed air-cooling structure. This specific design effectively blocks the aggressive conductive metal dust found in European casting environments, achieving a dust-proofing performance that closely rivals traditional fully enclosed legacy systems."
— John Wang, International Business Director
The FUJI HIC-604 is tailored strictly for professional industrial environments where equipment tolerances are closely monitored. It features a rugged layout optimized for a 5-inch (125mm) profile, ensuring high material removal rates during continuous operation.
| Parameter / Specification | FUJI HIC-604 Standard Profile | FUJI HIC-604A Advanced Profile |
|---|---|---|
| Input Power Supply | 3-Phase AC 200V (High Frequency) | 3-Phase AC 200V (High Frequency) |
| Nominal Frequency | 250 Hz (300 Hz Compatible*) | 250 Hz (300 Hz Compatible*) |
| Max Speed at 250Hz | 7,250 RPM | 7,250 RPM |
| Wheel Diameter Capacity | 5-Inch/125 mm | 5-Inch/125 mm |
| Matching Wheel Dimensions | 125 mm x 19 mm x 12.7 mm | 125 mm x 19 mm x 12.7 mm |
| Rated Peripheral Wheel Speed | 50 m/s (60 m/s for 300Hz line*) | 50 m/s (60 m/s for 300Hz line*) |
| Motor Construction Type | Brushless DC / Squirrel Cage Induction | Brushless DC / Squirrel Cage Induction |
| Dust Protection Mechanism | Intake Mesh Filtration Filter | Intake Mesh Filtration Filter |
| Vibration Attenuation | Standard Industrial Dampening | Active Anti-Vibration Housing (HIC-604A) |
*Note on Frequency Adaptation: While the HIC-604 series is native to 250Hz power grids, it can theoretically be coupled into a 300Hz high-frequency power supply. However, doing so raises the nominal motor output speed (RPM). Consequently, users must upgrade their abrasive consumables to a 5-inch flat wheel rated for a minimum peripheral speed of 60 m/s to preserve operating safety.
The primary advantage of transitioning to the FUJI HIC-604 series over legacy German alternatives or conventional pneumatic tooling lies in the motor architecture. Powered by a 3-phase high-frequency Brushless DC / Squirrel Cage Motor, these tools don't rely on traditional carbon brushes or physical mechanical commutators. This creates a highly compact, hyper-efficient layout that offers an exceptional power-to-weight ratio, runs cooler under extreme stress, and exhibits an incredibly prolonged operating lifetime with minimal servicing requirements.
Furthermore, compared to standard pneumatic grinders, which suffer from massive pneumatic drop-offs and low energy-efficiency coefficients, the FUJI 3-phase 200V electrical configuration guarantees consistent, high-torque grinding performance. Under heavy down-force pressure when cleaning deep casting lines, the tool maintains its speed without bogging down. This ensures that processing rates remain perfectly steady throughout the shifts. Safety is also elevated: a 3-phase isolated electrical supply provides greater systemic resilience and user safety than standard single-phase 220V commercial grinders.
The operational sweet spot for the HIC-604 series centers squarely on iron foundries, heavy steel casting installations, and metal fabrication yards. These severe environments demand exceptional performance from equipment due to extreme thermal variations, airborne metallic dust, and relentless, continuous shift rotations. It represents an essential piece of cast iron grinding equipment for modern foundries looking to optimize post-mold processing cycle times.
Iron casting post-molding processing station utilizing industrial grinder machine setups for continuous flash removal.
The tool excels at rapidly removing parting line flash, smoothing down heavy casting risers, grinding away welding slag, and cleaning up rough surface irregularities on large-scale ductile iron or steel structures.
A1: FEIN has historically set a benchmark globally for industrial power tools. While FUJI previously concentrated heavily on the demanding domestic Japanese industrial sector, our systems adhere to identical industrial-grade standards. Proudly made in Japan, FUJI tools utilize top-tier alloys and windings, providing the exact heavy-duty structural reliability needed to replace aging European machinery.
A2: High-frequency foundry tools operate in extreme environments full of conductive metal particles and abrasive dust. To prevent debris from building up on the motor coils and causing thermal retention issues, operators should use a high-pressure air gun to blow clean dry air through the rear ventilation ports at the end of every working shift. For continuous, multi-shift production setups, we highly recommend implementing a multi-tool rotation strategy per grinding stand to let tools cool down naturally, avoiding thermal overload.
A3: To provide seamless global logistics and technical support, FUJI established a dedicated European sales, service, and logistics hub in Budapest, Hungary in 2026. This center carries an extensive inventory of essential replacement components, including rotors, stators, switches, and anti-vibration handles. For customers located outside the European Union, global distribution, procurement, and fulfillment operations are managed by our long-term international business division and strategic marketing partner, Pio-Ship System based in Japan.
A4: All FUJI high-frequency prototypes are manufactured in Japan under rigorous compliance with Japan Industrial Standards (JIS). For international markets, the equipment has successfully passed CB certification. European CE certification processes are underway, and additional localized certifications will be completed systematically based on regional market requirements.
A5: Industrial grinding equipment undergoes highly variable, intense workloads depending on the metal type, down-force pressure, and shift patterns of each facility. Because these are specialized industrial production tools rather than consumer goods, a generic, uniform warranty timeframe cannot be applied. However, our engineering and service teams stand fully prepared to troubleshoot and supply component support to keep your lines running.
A6: To ensure our equipment meets your severe operational demands, we have extended our standard policy to a 1-2 weeks free testing program for qualified industrial facilities, allowing your operators to fully evaluate the HIC-604 against your current machinery line.
FUJI is a globally unique industrial supplier, operating as a fully integrated manufacturer that produces both heavy-duty high-frequency power tools and specialized industrial abrasive wheels under a single engineering ecosystem. With over 70 years of manufacturing experience, our deep understanding of the mechanical relationship between motor torque curves and abrasive compound performance allows us to deliver optimized systems. Partnering with a trusted, single-source best grinding wheel supplier like FUJI eliminates compatibility issues, optimizes material removal rates, lowers abrasive consumption costs, and protects operators on the factory floor.
FUJI corporate manufacturing excellence showcasing 70 years of integrated abrasive wheel and high frequency power tool development.
Do not let discontinued European tooling or delayed spare parts slow down your casting cleaning operations. Transition your grinding workstations to the reliable, high-torque performance of Japanese engineering.
Explore our complete product ranges by browsing through our comprehensive Industrial High-Frequency Product Catalogue to identify the ideal configuration for your manufacturing floor. For targeted commercial pricing inquiries, customized multi-tool deployment consultations, or to request a standard product test evaluation, please reach out to our global technical support representatives via our centralized Technical Contact Portal.
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.
