MR- S350 Drill Bit Grinder Machine

Model: MR- S350

Quick Specifications

Working Area:500×350×380mm
Spindle Speed:5000
Accuracy:±0.01
Tool Capacity:12

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Description

The MR-S350 is a compact, high-precision drill bit grinder machine, specially engineered for efficient sharpening and reconditioning of twist drills, end mills, and other small cutting tools. It is designed to restore the sharpness and precision of HSS and carbide drills, extending tool life and improving machining efficiency.
Built with a robust cast iron base for maximum stability and vibration suppression, it features a high-speed grinding spindle, manual feed control, and user-friendly handwheel operation. Ideal for tool making, mold manufacturing, automotive, hardware, and general metalworking industries. It comes with CE/ISO certification, 12-month global warranty, and full customization for voltage and grinding wheel configuration to match global production needs.

Technical Specifications

ParameterUnitMR-S350 Standard Value
Applicable Drill Diameter Rangemm3-32
Max. Grinding Wheel Diametermm125
Grinding Wheel Speedr/min5000
Spindle Motor PowerkW0.75
Grinding Accuracymm±0.01
Surface RoughnessμmRa≤0.4
Standard Power Supply3 Phase 380V, 50Hz
Customizable Voltage1 Phase 220V / 3 Phase 415V/440V, 50/60Hz
Overall Dimensions (L×W×H)mm500×350×380
Net Weightkg45

Features

  1. High-Precision Sharpening Performance

    Precision-ground guide rails and high-speed grinding spindle deliver accurate drill point angle and lip clearance, restoring the original cutting performance of worn drills.

  2. Compact & Portable Design

    Lightweight and compact structure with a top handle for easy portability, ideal for small workshops and on-site tool maintenance.

  3. User-Friendly Manual Control

    Intuitive handwheel adjustment and push-button operation enable easy parameter setting and precise grinding control, with a built-in work lamp for clear visibility.

  4. Wide Tool Compatibility

    Compatible with HSS, carbide, and cobalt drill bits, as well as small end mills and cutting tools, making it a versatile tool for tool reconditioning.

  5. Safe & Durable Construction

    Reinforced cast iron base with anti-slip feet ensures stable operation, while the enclosed grinding wheel guard provides operator safety.

  6. Global Power Compatibility

    Standard 380V 50Hz configuration, fully customizable voltage to fit European, American, Asian and Middle Eastern power grid standards.

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