Introduction

• • Versatile Milling & Tapping CapabilityA compact yet powerful footprint that combines high-speed drilling and tapping with full-scale precision milling functionality.

  • Heavy-Duty Box Column ConstructionFeatures a robust, heavy-duty body design with a rigid box column. This high-mass structural integrity guarantees superior vibration dampening and long-term machining stability.

  • High-Speed, Silent Linear Guide WaysAll three axes (X/Y/Z) are equipped with premium imported silent linear guideways, delivering high positioning accuracy, rapid traverse speeds, and smooth, quiet movement.

  • Counterweight-Free Z-Axis with Brake SystemDesigned without a mechanical counterweight for agile, high-speed Z-axis acceleration and deceleration. The integrated holding brake ensures safety and prevents dropping, eliminating vibration while maintaining flawless accuracy.

  • Rapid Umbrella-Type Tool ChangerEquipped with a responsive head-mounted umbrella tool magazine, drastically reducing tool-to-tool exchange time and maximizing overall production efficiency.

  • Efficient Rear Chip DisposalEngineered with a streamlined rear-discharge chip evacuation system, making routine maintenance, cleaning, and coolant management effortless.

  
  

Key benefits

• Core Machine Characteristics & Structural Design

  Premium HT300 Cast Iron Structure The primary structural components are cast using premium HT300 High-Tensile Cast Iron. With a surface hardness treated to HB250 and subjected to strict high-temperature annealing and natural aging processes, internal stresses are completely eliminated to ensure lifetime structural stability without deformation. Advanced Rib Reinforcement The base features an ultra-robust 3-layer rib layout, while the column employs a 2-layer cross-ribbed architecture. This precise structural design pushes the natural frequency far outside the resonance zone, drastically reducing micro-vibrations during heavy-load cuts. 1:1:1 Golden Ratio Head Connection The contact interface between the spindle head and the column utilizes a flawless 1:1:1 dimension ratio. Combined with an ultra-wide base design, this symmetrical layout maximizes cutting rigidity and ensures uniform thermal distribution for precision machining. Hybrid Guide Way System Features premium linear roller guideways on X and Y axes for rapid, high-efficiency movement, combined with a heavy-duty hard box guideway on the Z axis (or customizable full 3-axis hard guideways) to deliver maximum damping capacity during heavy roughing operations.

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  Advanced Casting & Manufacturing Process Flow

  The unparalleled rigidity of our machining center begins at the foundational level. Below is the advanced 6-step casting process used to manufacture the ultra-stable machine bed and structural elements:

  Stage	Process Image	Process Name	Industrial Significance & Description
  01		Processing of Lost Foam Molds	Utilizes high-precision CNC equipment to mill premium foam patterns. This guarantees that complex internal rib geometries (3-layer base and 2-layer column ribs) are perfectly shaped right from the molding stage.
  02		Vanishing Line Shape Molding	The foam pattern is embedded into a specialized automated molding line, ensuring uniform sand packing density around the pattern to prevent casting cavities or uneven wall thickness.
  03		Resin Sand Line Modeling	Combines resin sand technologies to reinforce critical mold areas. This maximizes the mold's structural integrity to withstand heavy molten iron pressure, ensuring dimensional accuracy of the HT300 cast.
  04		Electric Furnace Area Melting	Advanced electric induction furnaces precisely control the chemical composition of the HT300 alloy, maintaining the perfect carbon-silicon ratio to consistently achieve a surface hardness ≥ HB250.
  05		Casting Operation	Molten iron is poured under tightly monitored thermal conditions. The foam vaporizes instantly, leaving behind a perfectly integrated single-piece casting with zero weak joints.
  06		Annealing Treatment	Castings undergo prolonged high-temperature thermal annealing followed by extended natural aging. This critical step completely relieves internal stresses, assuring that the machine frame remains perfectly straight and accurate for decades.

  Premium Control & Performance Highlights

  Mitsubishi CNC Control System Equipped with the industry-leading Mitsubishi CNC System, this machine delivers high-speed, high-precision nano-contour control. It features exceptional multi-axis look-ahead capabilities, optimizing acceleration and deceleration profiles dynamically to dramatically reduce cycle times while preserving flawless part contours. Perfect for intricate 3D mold surfaces and rapid component manufacturing. High-Speed Servo Tool Magazine (ATC) Synchronous Tool Change System: The spindle and the tool arm operate in seamless synchronization to minimize non-cutting time. Servo-Driven Carousel: Powered by a high-torque servo motor, providing rapid tool selection, smooth indexing, and precise mechanical positioning. Enhanced Productivity: Reduced tool-to-tool time directly translates into higher shop floor utilization and shorter delivery times.

  DUOMI'S CNC DEEP HOLE DRILLING MACHINE

  
  This compact, high-speed drilling and tapping center is engineered to deliver comprehensive milling capabilities alongside ultra-fast hole-making performance. Built with a heavy-duty frame and a rigid box column, this machine ensures maximum stability, exceptional precision, and vibration-free operation even during high-speed machining cycles. It is the ideal solution for precision parts manufacturing, electronics, and automotive component processing.

  
  

  DUOMI CNC builds machines for real manufacturing conditions—where performance must remain consistent, shift after shift.

  
  

  Talk to DUOMI CNC

  If you are looking for a dependable cnc deep hole drilling machine tailored to your material, hole size, and production volume, our engineering team is ready to assist.

  
  

  DUOMI CNC

  Precision drilling solutions, built for industry.

  
  

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