Grewin Golden Bull-C Rotary File
Overview:
The Type C rotary burr is another fundamental and widely used model in the rotary burr family. Its shape lies between the cylindrical Type A and the inverted cone Type B, making it especially suitable for chamfering at different angles and machining conical surfaces. When edge chamfering is required, or when cleaning V-grooves and narrow sharp corners, the Type C cone rotary burr is the ideal tool.
Features:
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Tungsten Carbide Material: The most mainstream and premium material, providing extreme hardness, excellent wear resistance, and high-temperature durability. It ensures long tool life and allows high-speed cutting of various hard materials, including quenched steel.
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Applicable Materials: Suitable for machining metals with hardness below HRC55 (carbon steel, alloy steel, stainless steel, etc.).
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Tool Geometry: The Type C double-cut rotary burr features a pointed tip with a straight cone shape and cross-cut flutes. Known for its outstanding chamfering capability, precise penetration into narrow slots, and efficient cutting performance, it is the ideal solution for machining bevels, angles, and sharp corners. Widely used in mold making, machinery manufacturing, aerospace, and automotive industries.
Usage Guidelines:
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Safety: Always wear safety goggles and cut-resistant gloves to protect against flying chips.
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Maintenance: Clean tool regularly to remove debris and maintain optimal performance.
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Proper Force: Apply moderate pressure; excessive force may cause overheating or premature wear (reduce speed when using extended tools).
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Speed Control: Designed for high-speed operation. Follow recommended RPM values according to material type.
Advantages:
Made from premium carbide substrate, this burr is durable, sharp-edged, burr-free, heat- and wear-resistant, making it the first choice for precision metal grinding. Non-standard customization is available.
Case Study 1: Efficiency Improvement in Aerospace Component Repair
Customer Background:
An aerospace maintenance facility needed to deburr turbine blade castings (nickel-based alloys). Standard rotary burrs wore out quickly and required frequent replacement.
Optimization Plan:
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Recommended Product: Ultra-fine grain carbide K-series (taper shape) rotary burr with coating
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Parameter Adjustment: 25,000 RPM with minimum quantity lubrication (MQL) cooling
Customer Feedback:
The new rotary burr tripled its service life! A single burr could process up to 50 turbine blades, achieving a deburring finish of Ra 0.8 μm, eliminating the need for polishing.
