Vertical Machining Center

Vertical Machining Center
Vertical Machining Center
Vertical Machining Center
Vertical Machining Center
Vertical Machining Center
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CNC machine tool for processing complex metal parts

The vertical machining center is a next-generation CNC system designed for the efficient processing of plates, discs, casings, and other precision components and molds. This machining system has various automatic features that streamline production, including an automatic tool changer, a fully enclosed protective cover, and automatic lubrication and cooling systems. It also comes equipped with an automatic chip conveyor, a manual spray gun, and a handheld MPG unit for flexible manual operations. With a single setup, the vertical machining center can perform multiple processes, such as milling, boring, drilling, reaming, tapping, and more, allowing for highly precise and efficient workflows.

Specifications
Model ML-850 MV-1160
Working table Working table size (W×L) 500×1000mm 600×1200mm
T-slots (number×width×spacing) 5×18×90mm 5×18×10mm
Max. weight of workpiece 800kg 1000kg
Working travel Max. travel of X/Y/Z axes 800/500/500mm 1100/600/600mm
Distance from center of spindle to column guiderail 560mm 645mm
Distance from end face of spindle to table surface 110-610mm 120-720mm
Spindle Spindle tool shank / BT40-150
Spindle motor power 7.5kW 11kW
Spindle diameter Ø150mm /
Spindle taper bore BT-40 /
Spindle speed 8000rpm 12000rpm
Spindle transmission / Direct connection
Spindle cooling method / Oil cooling (temperature control)
Cutting tools Tool shank type / BT40
Pull stud type / BT40-Ⅰ
Guiderail X-axis #35mm /
Y-axis #45mm /
Z-axis Rectangular slide guideway /
Drive Ball screw (X/Y/Z axes) 4012/4012/4012mm (C3 grade) /
Power (X/Y/Z axes) 3/3/3kW /
Motor torque (X/Y/Z axes) 10/12/12Nm /
Tool magazine (optional) Tool magazine type Disc arm type Disc type
Tool selection Bi-directional tool selection (take shortest random path) /
Tool magazine capacity 24 tools 24 tools
Tool change time 2 seconds (tool to tool) 1.8 seconds (tool-to-tool)
Max. tool weight / 7kg
Max. tool length / 300mm
Tool diameter (full tool/adjacent empty tool) / 75/150mm
Accuracy Positioning (X/Y/Z axes) 0.008/0.008/0.008mm 0.01/0.01/0.01mm
Positioning repeatability (X/Y/Z axes) 0.003/0.003/0.003mm 0.006/0.006/0.006mm
Feed rate Rapid speed (X/Y/Z axes) 24/24/18m/min 36/36/36m/min
Max. cutting feed rate 10000m/min 10000m/min
Servo motor power (X/Y/Z axes) / 3/3/3
Servo motor speed (X/Y/Z axes) / 3000/3000/3000
Ball screw diameter (X/Y/Z axes) / 4016/4016/4016
Guideway type (X/Y/Z axes) / X/Y/Z: 45/45/45 linear roller
Step feed / 0.001
Machine Dimensions (L×W×H) Approximately 2750×2600×2750mm Approximately 3300×3100×2750mm
Weight Approximately 6000kg Approximately 6000kg
Others CNC control system Mitsubishi M80B Mitsubishi M80B
Power consumption 25kVA 25kVA
Cooling water tank capacity 300L 420L
Components Overview
  • Machining Center Overall Structure

    The base, column, spindle housing, cross slide, and worktable are all made from high-strength cast iron. These components undergo dynamic and finite element analysis to ensure maximum rigidity. The vertical machining system’s wide base, box-shaped column, and fully supported cross slide offer exceptional load-bearing capabilities, making it suitable for heavy-duty operations.

  • Spindle
    1. The belt-driven spindle comes with an external cooling system. The front-end features P4-grade precision angular contact bearings, while the rear is equipped with P4-grade roller bearings. This spindle, powered by a servo motor, reaches speeds of up to 8000 rpm for the ML-850 model (12,000 rpm for the MV-1160 model). It is ideal for both high-speed precision cutting and heavy-duty low-speed operations.
    2. Equipped with high-performance grease-lubricated bearings, the spindle housing also includes an oil-cooled temperature control system to manage heat, minimizing thermal deformation during extended operation.
    3. The powerful belt drive offers efficient, slip-free transmission and is easy to maintain.
    4. The spindle assembly uses dynamic balancing technology to ensure smooth operation at high speeds, reducing vibration and ensuring precise machining results.
  • X/Y Axes

    Both axes are equipped with P4-grade roller linear guides. The axes use hardened sliding rails with composite sliding supports, featuring high wear resistance and precision.

  • Z-Axis

    Fitted with a nitrogen gas balance system, ensuring stable movement even at high speeds. This balance mechanism provides optimal weight distribution between the counterweight and spindle box, allowing the Z-axis motor to maintain excellent load characteristics during machining.

  • High-Precision Ball Screw
    1. All three axes are fitted with C3-grade high-precision ball screws combined with preloaded double nuts to ensure minimal backlash, delivering high accuracy.
    2. The ball screws are supported by 60° angular contact bearings, ensuring smooth and precise motion during operation.
    3. To reduce thermal expansion, the ball screws are pre-tensioned. This setup also enhances the rigidity of the transmission system, further improving positional accuracy during high-speed machining.
    4. The ball screws are directly connected to the servo motors using flexible couplings, ensuring efficient power transmission with minimal backlash.
    5. The pre-tensioning process increases the rigidity of the screws and eliminates issues related to heat expansion during fast movements, thus improving the machining system’s positioning and repeatability accuracy.
  • Tool Magazine

    The vertical machining center is equipped with a 24-tool capacity arm-type tool magazine. The shortest path is automatically selected for each tool change, minimizing tool switching time. The dual-arm automatic tool changer operates via a motor and cam-driven mechanism, ensuring fast and stable tool exchanges. (Optional feature)

  • Fully enclosed guard

    The machining center includes a fully enclosed protective system with a spiral chip conveyor, suitable for handling general metal and non-metal chips. For materials like cast iron and aluminum, optional chain or scraper-type chip conveyors can be integrated for more efficient waste management.

  • Lubrication System

    A centralized lubrication system ensures precise and consistent lubrication of the machining center’s guide rails. This pressure-relief system delivers the exact amount of oil required, preventing excess waste and ensuring smooth operation.

  • Oil-Water Separator

    The machining system features an integrated oil-water separation system that collects waste oil from the lubrication rails into a rear-mounted tank. This prevents contamination of the cutting fluid and extends the lifespan of the coolant. (Optional feature)

  • CNC Control System

    Equipped with the Mitsubishi M80B CNC system, the control unit ensures stable and reliable operation. This machining system offers precise control over all CNC machining functions and auxiliary processes, allowing for accurate and efficient production.

Working Conditions
Power supply 380V±10% 50HZ±1% three phase AC 380V±10% ±15% 50Hz±1Hz three phase AC
Working temperature 5 to 40℃ 8 to 40℃
Relative humidity 40-75% ≤80%
Air pressure 0.5-0.7Mpa 0.6-0.8 Mpa
Air flow 350L/min 280L/min
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