Four Guideway CNC Lathe

Four Guideway CNC Lathe

The Four Guideway CNC Lathe is engineered for high-precision, heavy-duty machining of extra-large industrial components. Featuring an ultra-wide bed design, its four-guideway support system drastically reduces structural deflection, dampens cutting vibration, and ensures continuous machining accuracy under high torque loads up to 20 tons.
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Product Introduction

The Four Guideway CNC Lathe is engineered for high-precision, heavy-duty machining of extra-large industrial components. Featuring an ultra-wide bed design, its four-guideway support system drastically reduces structural deflection, dampens cutting vibration, and ensures continuous machining accuracy under high torque loads up to 20 tons.

 

Typical Machine Specifications

 

Item

Specification

Machine Type

Four Guideway CNC Lathe

Swing Over Bed

800 - 2500 mm

Maximum Turning Diameter

600 - 2200 mm

Maximum Turning Length

1500 - 12000 mm

Spindle Bore Diameter

105 - 500 mm

Spindle Speed

According to configuration

Spindle Motor Power

22 - 132 kW

Chuck Size

500 - 2000 mm

Maximum Workpiece Weight

Up to 20 tons

Machine Weight

According to machine configuration

Guideway Type

Heavy-duty Four Guideway Structure

CNC System

FANUC / Siemens / Other Options

Tool Post

Hydraulic / Electric / Servo Type

Tailstock

Manual or Hydraulic Type

 

Main Advantages

 

High Load Capacity for Oversized Parts: Engineered to handle massive workpieces without bed bending or axis misalignment.

Stable Machining under Dynamic Loads: Smooth cutting conditions during roughing of high-strength materials (carbon steel, alloy steel, stainless steel, cast iron).

Built for 24/7 Industrial Duty: Thermal-stable design and continuous automatic lubrication allow uninterrupted round-the-clock factory operation.

 

Applications

 

Oil & Gas Equipment: Large valve bodies, pipeline flanges, casing pipes, subsea drill collars.
Energy Equipment: Hydro/steam turbine shafts, generator rotors, nuclear power fittings.
Shipbuilding: Propeller shafts, rudder stocks, marine propulsion sleeves.
Mining & Heavy Machinery: Heavy drive shafts, crane drums, crusher main spindles.

 

Machining Capability

 

Large Diameter Turning: Flanges, discs, valve bodies, and large sleeves.
Heavy Material Removal Rate (MRR): Rapid roughing of forged steel shafts and heavy castings.
Long Shaft & Pipe Turning: Extended bed designs with steady rests for marine shafts and hydraulic cylinders.
Heavy Load Capacity: Machining parts exceeding 5 to 20 tons without structural flex.

 

Machine Structure Design

 

Heavy-Duty Cast Bed: Thermal-stress relieved casting with high shock-absorption properties.
Hardened & Ground Guideways: Guideway hardness reached HRC 52+ via frequency induction hardening, precision ground for minimum wear.
High-Precision Ballscrews: Large-diameter preloaded ballscrews coupled directly to servo motors for reliable positional accuracy.

 

Optional Configurations

 

Extra-Large Spindle Bore: Up to 500 mm bore for long pipe-end machining.
Hydraulic / Servo Turrets: Fast tool change speeds with live tooling options for milling/drilling.
Hydraulic Heavy Tailstock: Motorized quill positioning with continuous thrust clamping for long shafts.
Closed/Open Steady Rests: Roller-type heavy-duty steady rests for supporting workpieces up to 20 tons.
Automation & Measuring Tools: Automatic chip conveyors, Renishaw workpiece/tool setters, and coolant high-pressure systems.

 

Quality Control

 

Casting Integrity: Ultrasonic flaw detection and thermal stress relief before machining.
Guideway Precision: Laser interferometer measurement for bed straightness and parallelism.
Dynamic Balancing: Spindle assembly dynamic balance testing to minimize high-speed runout.
Laser Positioning Test: Full-length laser calibration for pitch error compensation.
48-Hour Dry Run & Trial Cutting: Full-load continuous cutting trial on workpiece samples prior to factory sign-off.

 

Global Support, Shipping & After-Sales Service

 

Packaging & Logistics: Anti-rust coating, vacuum-sealed barrier wrapping, and heavy-duty steel skid mounting for safe ocean transport.
On-Site Commissioning: Field service engineers available worldwide for installation, foundation setup, and operator training.
Parts & Technical Response: 12-month complete warranty, lifetime technical support, and critical wear parts dispatched within 48 hours via global express.

 

FAQ

 

Q: What primary advantage does a four-guideway lathe offer over a standard two-guideway machine?

A: The four-guideway design provides double the structural contact area for the saddle. This dramatically reduces cutting chatter, prevents bed deflection under 10+ ton loads, and doubles tool insert life during heavy roughing.

Q: What key details are required to receive an accurate technical proposal?

A: To provide an optimal model configuration, please supply workpiece drawings, material grade, maximum diameter/length, total workpiece weight, and required tolerances.

Q: Can machine specifications be customized for specific workpiece lengths or bore sizes?

A: Yes. Bed length (up to 12 meters), swing diameter, spindle bore, chuck system, and CNC controllers can be tailored to match your precise production line requirements.

Q: How do you guarantee accuracy on long-bed machines during ocean transit?

A: Beds are modularly reinforced, stress-relieved, and shipped on heavy steel foundations. Final geometric precision is re-calibrated on-site using laser interferometers during installation.

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