Large-Bore Conventional Lathe
Heavy-Duty Large-Bore Manual Lathes for Large-Diameter Workpieces
Engineered for precision turning, deep hole boring, and heavy cutting, our large-bore conventional lathes deliver maximum rigidity for long shafts, large pipes, flanges, and heavy mechanical components.
Spindle Bore: Up to 130 mm and custom configurations
Swing Over Bed: Up to 1,600 mm and above
Workpiece Length: Up to 12,000 mm continuous support
Heavy Capacity: Built for loads up to 32 tons
Structure: Heavy cast iron bed with wide, induction-hardened guideways
Advantages of Large-Bore Conventional Lathe
Extended Spindle Clearance: Passes large-diameter steel tubes and bar stock directly through the headstock for efficient end-threading and boring.
High-Rigidity Cast Iron Bed: Built with dense grey iron castings to absorb heavy cutting vibrations and maintain axial precision.
High-Torque Headstock: Precision gears deliver smooth power transfer for deep facing, external turning, and heavy threading.
Wide Hardened Guideways: Ground guideway surfaces reduce wear and balance massive workpiece loads.
Heavy Tailstock System: Massive quill design provides rigid end-support to maintain straightness across extended shaft lengths.
Versatile Tooling & Threading: Supports metric, inch, module, and diametral pitch threading without frequent gear changes.
Capability Highlights
|
Parameter |
Capability Range |
|
Swing Over Bed |
Up to 1,600 mm |
|
Spindle Bore |
Up to 130 mm (Custom sizes available) |
|
Max Workpiece Length |
Up to 12,000 mm |
|
Guideway Width |
Up to 755 mm |
|
Main Motor Power |
22 kW to 75 kW |
|
Max Workpiece Weight |
Up to 32 Tons |
Available configurations vary by machine series. Custom specifications built to client technical drawings.
Workpiece Applications & Operations
Large Shafts
OD turning, facing, taper turning, and keyway prep.
01
Pipes & Tubing
ID boring, external threading, and pipe-end facing.
02
Rollers & Cylinders
Surface turning, shoulder facing, and journals machining.
03
Flanges & Large Discs
Large-diameter facing and ring groove cutting.
04
Heavy Sleeves & Bushings
Internal boring and external step turning.
05
Oil & Gas: Machining drill pipes, casing tubes, couplings, and valves.
Steel & Metallurgy: Turning heavy mill rolls, drive shafts, and furnace parts.
Power Generation: Processing turbine shafts, generator rotors, and large flanges.
Mining & Heavy Equipment: Manufacturing excavator shafts, drum rollers, and structural pins.
Marine & Shipbuilding: Machining propeller shafts, stern tubes, and rudder stocks.
Technical Specifications
|
Specification Model |
CW61100B |
CW61125B |
CW61140B |
CW61160B |
|
Swing Over Bed |
1,000 mm |
1,250 mm |
1,400 mm |
1,640 mm |
|
Swing Over Carriage |
615 mm |
865 mm |
1,015 mm |
1,250 mm |
|
Spindle Bore |
130 mm |
130 mm |
130 mm |
130 mm |
|
Max Workpiece Length |
Up to 12,000 mm |
Up to 12,000 mm |
Up to 12,000 mm |
Up to 12,000 mm |
|
Bed Guideway Width |
755 mm |
755 mm |
755 mm |
755 mm |
Customized Spindle Bores: Tailored headstock and spindle dimensions accommodate non-standard bar stock and pipe diameters.
Extended Bed Lengths: Expanded center-to-center distances support ultra-long shafts, rollers, and structural components.
Upgraded Motor Power: High-capacity motor options deliver higher torque for aggressive material removal and continuous duty.
Specialized Workholding: Custom chuck configurations, faceplates, and steady rests match unique part geometries.
Regional Electrical Setups: Control systems, voltages, and safety standards are built to meet local grid and compliance rules.
Casting Stress Relief
Heavy iron castings undergo thermal aging treatment to eliminate internal stress and prevent long-term deformation.
Guideway Induction Hardening
Precision-ground bedways receive high-frequency quenching to maximize wear resistance under heavy loads.
Precision Gear Assembly
Spindle drive gears are dynamically balanced and aligned for smooth, high-torque power delivery.
Static Accuracy Inspection
Geometrical tolerances and spindle runout are measured against strict international standards before assembly.
Full-Load Trial Testing
Every machine executes simulated heavy cutting and full-capacity runs prior to final export packaging.
FAQ
Request a Tailored Machine Configuration
Send us your workpiece diameter, length, total weight, or technical drawings. Our engineers will calculate load capacities and recommend the exact bed length, swing, and tooling layout required for your floor.
As one of the leading large-bore conventional lathe manufacturers and suppliers in China, our products have good reputation in the market. Please feel free to buy high quality large-bore conventional lathe made in China here from our factory. For price consultation, contact us.