CNC Vertical Turning Lathe

CNC Vertical Turning Lathe

The CNC Vertical Turning Lathe is engineered specifically for high-precision, heavy-duty machining of large-diameter, short-axial, and complex rotational components.
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Description
Technical Parameters
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The CNC Vertical Turning Lathe is engineered specifically for high-precision, heavy-duty machining of large-diameter, short-axial, and complex rotational components. Built with a vertical spindle orientation and direct table-mounted loading, this machine overcomes the gravitational deflection typical of horizontal lathes, providing superior structural rigidity, thermal stability, and long-term machining accuracy. It delivers exceptional efficiency across external turning, internal boring, cylindrical facing, grooving, and taper profiling operations.

 

Key Performance Features

 

Vertical Worktable Base
The gravity-aligned structural design mounts the workpiece directly onto a heavy horizontal rotary table, eliminating spindle droop and maintaining precise coaxiality during heavy machining.

High-Rigidity Cast Iron Bed
Constructed from dense, stress-relieved casting structures, the machine frame effectively dampens cutting vibrations during deep cuts and high-torque stock removal.

Precision X and Z Linear Axis Drives
Preloaded precision ball screws matched with hardened box or linear guideways ensure accurate position feedback and high repeat positioning accuracy under heavy cutting loads.

Automatic Multi-Station Turret
The high-torque indexing tool turret enables rapid tool changes, supporting continuous multi-process machining workflows without manual repositioning.

 

Industrial Applications of CNC Vertical Turning Lathe

 

Heavy Machinery and Flange Manufacturing
Optimized for precise facing, turning, and shoulder boring on large industrial pipe flanges, valves, and pressure vessel connectors.

Automotive and Railway Components
Delivers rapid cycles and uniform surface finishes for heavy brake discs, wheel hubs, flywheels, and railway locomotive ring gear blanks.

Energy and Power Generation Equipment
Built for heavy-duty metal removal on large wind turbine bearing rings, hydro-turbine housings, and generator end shields.

 

Technical Specifications

 

Parameter

Standard Machine Value / Range

Machine Structural Type

CNC Vertical Turning Lathe

CNC Controlled Axes

2-Axis (X / Z Axis Interpolation)

Worktable Diameter

800 mm - 2500 mm

Max. Swing Diameter

1000 mm - 3000 mm

Max. Turning Diameter

900 mm - 2800 mm

Max. Workpiece Height

650 mm - 1600 mm

Max. Workpiece Weight

2,000 kg - 10,000 kg

Spindle Speed Range

10 rpm - 400 rpm (Infinitely Variable)

Main Motor Power

22 kW - 55 kW

X-Axis Travel

-50 mm to +1500 mm

Z-Axis Travel

650 mm - 1200 mm

Tool Turret Capacity

4-Station / 8-Station Automatic

Positioning Accuracy

X: 0.015 mm / Z: 0.020 mm

Repeatability Accuracy

X: 0.008 mm / Z: 0.010 mm

 

Workpiece Sizing and Selection Protocol

 

Maximum Turning and Clearance Radius
Evaluate both raw forging dimensions and target finished dimensions to ensure adequate cross-slide clearance and radial tool reach.

Loading Height and Z-Axis Travel
Account for chuck jaw height, fixture height, and minimum tool extension length to guarantee unhindered Z-axis operation across the entire profile depth.

Dynamic Weight Capacity
Calculate total load including raw material mass and fixture assembly to remain within certified rotary table bearing limits.

Material Removal and Power Requirements
Select appropriate spindle motor power and gearbox torque based on workpiece material hardness and required depth of cut.

 

Workholding and Fixture Configurations

 

Manual and Hydraulic Chuck Systems
Supports 3-jaw self-centering chucks, 4-jaw independent chucks, and custom hydraulic clamping systems for secure workholding.

Custom Component Tooling
Specialized fixtures can be mounted directly to the T-slotted worktable to hold asymmetric parts, thin-walled rings, or non-standard castings securely.

 

Quality Control and Verification Standards

 

Dynamic Laser Alignment
Every machine axis undergoes laser interferometer calibration to verify geometric straightness, pitch, and axis positioning accuracy.

Rigorous Pre-Shipment Load Testing
Full-power test machining is executed on representative test workpieces to verify actual cutting tolerances, surface roughness, and thermal stability before dispatch.

 

Production Integration and Automation Options

 

Optimized High-Volume Setups
Dedicated workholding setups, customized tool tooling blocks, and macro programs minimize cycle times for high-volume series production.

Auxiliary Handling Equipment
Optional integrated chip conveyors, high-pressure coolant pump systems, and auto-door enclosures streamline shop-floor productivity.

 

Essential Information for Technical Quotations

 

To receive an accurate machine recommendation and custom price quote, please provide:

 

2D component drawings or 3D CAD files (indicating critical dimensions and tolerances).
Raw material type and hardness parameters.
Maximum finished turning diameter and total part height.
Finished workpiece weight and raw forging dimensions.
Annual target production volume and preferred CNC control preference.

 

FAQ

 

Q: What types of parts are best suited for a CNC Vertical Turning Lathe?

A: This equipment excels at machining large-diameter, heavy, disc- and ring-shaped rotational parts such as pipe flanges, hubs, bearing races, brake rotors, and valve bodies.

Q: How does a vertical design benefit heavy part machining compared to a horizontal unit?

A: The vertical spindle layout uses gravity to seat heavy workpieces directly onto the rotary table, eliminating spindle deflection, simplifying part loading, and ensuring consistent geometric accuracy.

Q: Can this machine perform both internal boring and external profile turning?

A: Yes, configured with multi-position automatic turrets and appropriate boring bars, the machine completes external turning, internal boring, facing, chamfering, and grooving in a single setup.

Q: How do I determine the correct spindle motor power for my application?

A: Spindle power selection depends on the raw material hardness, maximum workpiece diameter, cutting tool selection, and target material removal rates required by your production schedule.

Q: What workholding options are available for irregular or asymmetric castings?

A: In addition to standard manual and hydraulic chucks, the T-slotted rotary table allows direct mounting of custom clamping fixtures designed specifically for non-standard geometric parts.

Q: What quality inspection steps are performed prior to machine shipment?

A: Every machine unit undergoes full geometric alignment verification, laser positioning calibration, and actual metal-cutting trials to confirm tolerance compliance prior to delivery.

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