The FUJI HGP-4260 is a 180 mm high-frequency grinder for heavy material removal at mobile workstations, including short-duration demanding grinding tasks. Its catalog power consumption is 2,600 W and tool weight is 3.5 kg. Plan the grinder, dedicated electronic power supply and output cable as one system.
The video and photograph illustrate an on-site grinding demonstration. They are not a controlled productivity comparison and do not establish a universal material-removal rate or a guaranteed speed advantage.
| Catalog item | HGP-4260 | HGP-4160 |
|---|---|---|
| Positioning | Heavy-grinding model | Lightweight model |
| Wheel dimensions | 180 × 5–8 × 22.23 mm | 180 × 5–8 × 22.23 mm |
| Speed | 8,000 rpm | 8,000 rpm |
| Dedicated supply output to tool | Three-phase AC 200 V, 400 Hz | Three-phase AC 200 V, 400 Hz |
| Current | 9.5 A | 6.5 A |
| Power consumption | 2,600 W | 1,600 W |
| Tool weight | 3.5 kg | 2.7 kg |
| Length | 309 mm | 309 mm |
| Spindle connection | Female M10 × 1.25 | Female M10 × 1.25 |
These are the standard models in the FUJI catalog, page 107. HGP-4160S and HGP-4260S have a different switch/body configuration and must be identified separately. The listed wattage is electrical power consumption, not measured mechanical output. Tool weight does not include the complete power-supply and cable installation.
The grinder requires an approved dedicated supply with three-phase 200 V, 400 Hz output and the specified output cable, which the catalog lists separately. Check the input rating of the chosen power supply against the site's mains voltage and phase arrangement. The supply's mains input is not the same specification as its output to the grinder.
Do not connect HGP-4260 directly to ordinary 50/60 Hz mains or assume it is compatible with a 250 Hz or 300 Hz high-frequency network. Select a complete tool-and-supply combination for the installed system. Changing a plug does not change the electrical rating, and operation outside the specified frequency requires explicit manufacturer approval.
The high-frequency three-phase induction motor has no carbon brushes or commutator. This removes brush replacement from routine service, but bearings, cables, switches, ventilation and other components still need inspection and maintenance. The catalog describes a vibration-reducing handle structure and high-grip handle.
Soft start and braking are provided through the dedicated power supply's functions. Do not describe braking as an instantaneous stop. Confirm the exact supply configuration and follow its instructions. An anti-vibration handle does not establish a safe daily exposure time; assess the actual task and working conditions.
For short-duration heavy grinding tasks, evaluate HGP-4260 with the workpiece material, required removal, access, operator handling and cable routing. The lighter HGP-4160 is a comparison option for lighter or medium grinding duties. For sustained severe-duty work, have FUJI assess the load cycle and complete system rather than assuming a continuous-duty capability from wattage alone.
A useful trial records wheel type, material, removed mass or completed area, actual grinding time, wheel consumption and stoppages under comparable conditions. Use these measurements to compare cost per task; a demonstration alone does not support a fixed “three times faster” claim.
The catalog specifies high-speed grinding wheels rated at 80 m/s. Confirm the exact dimensions, mounting, permitted application and marked speed before use. A common diameter alone is insufficient. Maintain guards and workholding, control dust, and follow the tool and abrasive instructions.
Isolate power before inspection and follow the manufacturer's cleaning procedure. Keep ventilation clear using the approved method; do not prescribe daily high-pressure air cleaning without the tool manual's requirements. Stop work if there is damage, unusual vibration, overheating or abnormal operation.
Its specified tool supply is 200 V, 400 Hz. Select a suitable 300 Hz tool for a 300 Hz installation, or a separately approved 400 Hz system for this model. Do not treat different frequency families as interchangeable.
No. It is the catalog power-consumption figure. Actual grinding performance depends on the operating point, supply, abrasive, material and handling. The catalog does not establish zero speed drop at every load.
Send the site mains rating, any existing supply model and output, workpiece material, grinding task, daily load cycle, required cable length and wheel specification. Include photographs of relevant nameplates.
View the HGP-4260 product page, explore FUJI products, or request a complete system recommendation.
Technical source: FUJI Seito general catalog, pages 107–108. Product nameplates and current instructions take precedence for the supplied equipment.
