Categories

Dominate Heavy-Duty Metal Grinding with High-Frequency Angle Grinder

Superior torque & speed for Shipyard & foundries . Proven efficiency, No speed drop. Low vibration, High Output.
Engineers in Batam, Indonesia is checking the performance of High Frequency Grinder (HGP-4260)
Case Details

Engineered for relentless industrial performance, the FUJI KOSOKU HGP-4260 High-Frequency Angle Grinder (400Hz) redefines efficiency in demanding metalworking. Unlike standard universal motor tools, this 400Hz system leverages brushless induction motor technology to deliver consistent, stable torque even under the heaviest grinding loads.

Proven superior in rigorous testing against conventional pneumatic and electric grinders, the HGP-4260 translates high-frequency power into faster material removal and significantly higher grinding speeds—often increasing work efficiency by 200% to 300% compared to standard tools.
KOSOKU HGP-4260 High-Frequency Angle Grinder (400Hz)

The 400Hz High-Frequency Advantage

Why choose High-Frequency over standard electric tools? The key lies in the induction motor powered by a frequency converter. This eliminates carbon brushes and commutators—the most common failure points in heavy-duty grinders.

Core Benefits:

  • No Speed Drop: Maintains rated RPM even when pressing hard on steel plates.
  • Zero Maintenance Motor: No carbon brushes to replace, no armature burnout.
  • Safety & Comfort: Significantly lower vibration and noise compared to pneumatic tools, reducing operator fatigue (HAVS).

Critical Industrial Applications

The HGP-4260 is the tool of choice for industries where downtime is not an option.

1. Shipbuilding Excellence

Essential for shipyards worldwide, the HGP-4260 excels in heavy hull grinding, beveling, and weld seam cleanup. Engineers in Batam, Indonesia reported: "Low vibration, lightweight, no speed drop, and highly efficient grinding." It allows operators to achieve smoother surfaces and perfect weld preparation faster, boosting overall production capacity.

2. Foundry Powerhouse

Tackle tough casting finishing and gate removal with unparalleled ease. In foundry environments, dust usually destroys standard electric motors. The HGP-4260's enclosed brushless design resists dust ingress, while its stable high torque makes quick work of stubborn sprues and risers.

3. Heavy Structural Fabrication

Where standard grinders stall, the HGP-4260 thrives. Its power is visibly evident, producing larger, more energetic sparks during steel plate grinding—a clear indicator of superior cutting action. It is ideal for bridge construction and heavy machinery manufacturing.

Performance Comparison

Feature Standard Electric (50/60Hz) Pneumatic (Air) FUJI High-Frequency (400Hz)
Speed Stability Drops under load Drops significantly under load Remains Constant
Material Removal Medium Low to Medium Very High
Motor Life Short (Brush wear) Long (if oiled) Extremely Long (Brushless)
Energy Cost Low High (Compressor leaks) Low (High Efficiency)

Technical Specifications

Model HGP-4260
Wheel Size 180mm (7 Inch)
Frequency / Voltage 400Hz / 200V (Requires Inverter)
No Load Speed 8,000 RPM (High Speed Type)
Weight Lightweight Design (approx. 2.8 - 3.2kg class)

*Note: A dedicated High-Frequency Converter/Inverter is required to operate this tool.

Frequently Asked Questions (FAQ)

Q: Do I need a special power supply for the HGP-4260?

Yes, this tool operates at 400Hz/200V. You must connect it to a compatible FUJI frequency converter or a centralized high-frequency generator system.

Q: What is the maintenance schedule for the motor?

Because the motor is brushless, it requires virtually no maintenance compared to standard tools. We recommend regular checks on bearings and gears to ensure longevity.

Upgrade your grinding capability. Contact our technical team today to discuss how the HGP-4260 can reduce your cycle times and labor costs.