Malaysian Foundry Clients Review FUJI 300Hz Grinding Tools in Nagano

A Malaysian foundry delegation visited FUJI KOSOKU's Nagano manufacturing facility following approximately six months of experience with FUJI 300Hz high-frequency tools. The visit combined a review of manufacturing and quality-control processes with discussions about equipment performance and future cooperation.

The customer's application is the cleanup and deflashing of small and medium-sized automotive castings. This provides a practical setting for evaluating the grinder, abrasive wheel and power supply as one working system.

Into the Frontline: Visiting FUJI KOSOKU's Nagano Factory

The delegation reviewed production processes and quality-control practices for FUJI KOSOKU industrial power tools, including high-frequency grinding equipment. The visit gave the customer an opportunity to discuss manufacturing consistency, service requirements and equipment selection directly with the FUJI team.

Brand Heritage: Tool Manufacturing and Abrasive Expertise

FUJI KOSOKU's Japanese tool-manufacturing expertise complements FUJI Grinding Wheel's abrasive experience. Considering both the tool and wheel helps connect equipment selection with the actual casting material, access conditions and finish requirements.

Industry Pain Points: Planning High-Frequency Equipment Replacement

FUJI reports, based on its industry information, that FEIN has discontinued its high-frequency angle-grinder range. FUJI also reports concerns in the market about Bosch spare-parts lead times and repair costs. These circumstances are encouraging some foundries to evaluate alternative equipment and long-term service arrangements.

Replacement selection requires more than matching the nominal frequency. Confirm the existing power supply's voltage, frequency, capacity, connections and protection requirements against the proposed tool. A 300Hz rating alone does not establish that a machine can connect directly to an existing installation.

Product Focus: FUJI 300Hz Tools for Foundry Grinding

FUJI's 300Hz foundry grinding solutions include the HGC-3902 angle grinder and HIC-3802 straight grinder. Tool selection depends on the abrasive, workpiece geometry and working position.

• Angle-grinding tasks: Select a suitable angle grinder for accessible casting surfaces and the required wheel diameter.
• Restricted access: A straight-grinder configuration may be appropriate for certain recesses and finishing tasks, using the permitted abrasive and mounting system.
• Motor construction: The high-frequency tools use brushless squirrel-cage induction motors. They have no carbon brushes or commutators, reducing brush-related maintenance. Bearings, gears, clamping components and electrical connections still require care in accordance with the equipment instructions.
• Rated operation: Evaluate grinding performance under the intended load and with a compatible power supply. Avoid treating stable operating performance as a guarantee of unchanged speed at every load.

For comparison with other equipment types, consult the Industrial Angle Grinder Guide.

Customer application: In 2025, the Malaysian foundry purchased 50 high-frequency tools, all configured for 300Hz operation, to replace older FEIN equipment. The tools are used for cleaning and deflashing small and medium-sized automotive castings during eight-hour shifts, with 180 × 7mm wheels for angle-grinding tasks. After approximately six months, the customer reported satisfactory service, with only a small number of chuck components replaced.

Perfect Match: Selecting Grinding Wheels for the Casting

The Malaysian customer's angle-grinding work uses 180 × 7mm wheels. FUJI's Super F2 is an option for routine grinding requirements. In a 24S specification, 24 is the grit size and S is the wheel grade, describing the bond's retention of abrasive grains rather than the hardness of the abrasive mineral.

Super Z 180 × 6mm wheels can also be discussed for suitable cast-iron applications. The correct formulation should be selected for the casting grade, surface condition and required removal. The Super Z option should not be confused with the customer's reported 180 × 7mm setup.

FUJI's hot-press manufacturing know-how is part of its abrasive development. Regardless of the production process, confirm the wheel's permitted application, dimensions, mounting and maximum marked speed. Grinding-only wheels must not be used for cutting.

Global Outlook: Service Feedback and Future Cooperation

The customer reported a good service record over approximately six months, with only a small number of chuck components replaced. This is useful application feedback, but it is not a quantified tool-life test or a guarantee of zero maintenance in other operating conditions.

The factory visit created an opportunity to review this experience and discuss further cooperation. For subsequent evaluations, grinding time per casting, wheel consumption, maintenance records and operator handling can help establish a clearer basis for equipment selection.

The customer expressed interest in expanding cooperation following the visit. Further procurement remains a cooperation intention rather than a confirmed additional order.