Overview of Grinding Machines and Cutting Tools

This document provides detailed technical specifications, features, and operational guidelines for various grinding machines and cutting tools designed primarily for drill and end mill sharpening, including specialized tools for ultra-high tensile steel and carbide drills.

1. Grinding Machines Specifications

• Small Drill Grinder (e.g., Model ROKEN-S2000): Suitable for drills Φ6.5 to Φ10.0, equipped with CBN#170 grinding wheels, 65W motor, AC100V (option for 230V), weight approx. 8kg, dimensions 225W×218D×212H mm. Accessories include holder pipes (various diameters), holder rings, and hex wrench.
• Spot Cutter Grinder (Models GK-KIN, GK-KIN150): For spot cutters with lengths 80mm and 150mm, designed for ultra-high tensile steel cutting systems. Recommended air drill speed: 1,000–1,200 rpm. Noted for significantly higher hole production compared to competitors.
• Medium Drill Grinder: Covers drills Φ2.0 to Φ13.0 with multiple tip angles (90°, 118°, 130°, 135°, 140°), CBN#170 grinding wheel, 65W motor, 2,850/3,440 rpm, approx. 11kg, dimensions 225W×218D×212H mm. Comes with multiple collets and holders.
• Large Drill Grinder: For drills Φ13.1 to Φ26.0, cone-shaped grinding with adjustable tip angles, 300W motor, 3,000/3,600 rpm, approx. 26kg, dimensions 342W×265D×273H mm. Includes spring collets, holder, hex wrench, and spanner.
• Specialized Large Drill Grinder for Taper Shanks (MT#1–#4): Supports drills Φ13.1 to Φ50, cone shape with 118° tip angle, equipped with electroplated CBN#100 grinding wheel, 200W motor, 3,000/3,600 rpm, weight 55kg. Accessories include multiple drill sleeves and hex wrench.
• End Mill Grinder: Supports diameters Φ4 to Φ13 (4-flute from Φ6), with multiple tip angles and X-sharpening, equipped with CBN#170 grinding wheel, 90W motor, 5,620 rpm, weight 4.8kg. Comes with various holder pipes, rings, case, and hex wrenches.
• Fully Automatic Drill Grinder (Model Xin): Desktop type, supports straight drills with ER11 and ER32 collets covering Φ2.0 to Φ20.0, touch panel for shape memory and recall, weight approx. 45kg, dimensions W540×D640×H340 mm. Enables instant and fully automated sharpening, reducing costs via in-house processing.

2. Tool and Grinding Wheel Details

• Grinding wheels primarily use CBN#170 for high precision and durability; electroplated diamond wheels are available as options for ultra-hard carbide drills.
• Grinding shapes include conical (cone-shaped), cylindrical, and specialized X-sharpening for improved cutting performance.
• Tip angles vary widely (90°, 118°, 130°, 135°, 140°) to accommodate different drill types and applications.
• Specialized grinding for spot cutters and ultra-high tensile steel plates (up to 1600MPa) demonstrates superior hole production efficiency compared to competitors.

3. Performance and Operational Advantages

• Regrinding only the primary cutting edge restores new-like sharpness, applicable to various ROKEN models.
• Unique drill tip designs reduce power consumption by approximately 30%, eliminate the need for pilot holes, and improve chip evacuation, resulting in cleaner holes with fewer burrs.
• Drill life and cutting speed improvements: e.g., Moonlight drills achieve 3 times longer life and significantly faster cutting times compared to competitors.
• Machines support dry grinding; however, accumulated chips pose fire risks, so dust collectors with φ70mm hose connections are recommended for safety and ease of cleaning.

4. Accessories and Additional Features

• Various collets and holders are included or available as options to accommodate a wide range of drill diameters and shank types.
• Hex wrenches, spanners, and holder rings are standard accessories for machine setup and maintenance.
• Some models feature touch panel controls for saving and recalling grinding shapes, enhancing repeatability and ease of use.
• Demonstration units are available for free one-week loan to evaluate machine performance before purchase.

5. Safety and Usage Recommendations

• Use dust collection systems to prevent fire hazards from dry grinding chips.
• For ultra-hard carbide drills, use the dedicated electroplated diamond grinding wheels instead of standard CBN wheels.
• Ensure proper holder orientation to maximize grinding range and accommodate different tool geometries.
• Follow recommended motor speeds and power supply options (AC100V standard, 230V optional) for optimal machine performance.

6. Summary of Key Parameters

7. Notable Product Highlights

• Moonlight drills feature patented tip and flute designs that improve cutting efficiency and reduce burr formation.
• Spot cutter grinding machines achieve significantly higher hole counts per tool compared to competitors.
• End mill grinders allow easy sharpening of 2-flute and 4-flute bottom edges with simple operation.
• All machines are developed, manufactured, sold, and serviced domestically, ensuring quality and safety.
• Some models have received design awards for innovation and usability.

Conclusion

The document comprehensively details a range of grinding machines and cutting tools optimized for various drill and milling applications, emphasizing efficiency, precision, and safety. The machines support a broad spectrum of tool sizes and materials, including ultra-high tensile steels and carbide. Advanced features such as touch panel controls, shape memory, and fully automatic operation enhance productivity and cost-effectiveness. Proper use of accessories and safety equipment like dust collectors is critical for optimal performance and hazard prevention.