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Views: 0 Author: Site Editor Publish Time: 2026-05-19 Origin: Site
When your production demands turning large-diameter workpieces with tight tolerances, a heavy duty CNC lathe is not optional — it is essential. From pump shafts and valve bodies to gear blanks and turbine components, these machines deliver the rigidity, torque, and precision that standard lathes simply cannot match.
At Starfish Machinery, we manufacture and supply a complete range of heavy duty CNC vertical lathes (CK5 series) and horizontal lathes (CK6 series), designed specifically for industrial-scale metalworking operations worldwide.
Vertical lathes excel at machining large, heavy, short workpieces. The workpiece sits on a horizontal table, and gravity itself becomes your fixturing advantage — no need for complex chucks on oversized parts.
Maximum turning diameter: 1250 mm
Maximum workpiece height: 1000 mm
Spindle speed range: 6–200 RPM
Ideal for: medium-sized valve bodies, flanges, gear blanks
Maximum turning diameter: 1600 mm
Maximum workpiece height: 1250 mm
Main motor power: 30 kW
Ideal for: large pump housings, turbine casings, pressure vessels
Maximum turning diameter: 2300 mm
Maximum workpiece height: 1600 mm
Two independent turrets for simultaneous turning
Ideal for: heavy equipment components, mining machinery parts, steel mill rolls
Key advantage of vertical lathes: The workpiece rests on the rotary table, eliminating deflection caused by cantilever loading. This makes vertical lathes the preferred choice for parts with a high diameter-to-length ratio.
Horizontal lathes are the workhorse of shaft-type and long workpiece machining. When your parts are longer than they are wide — drive shafts, rollers, long pipes, threaded rods — a horizontal CNC lathe is the right machine.
Swing over bed: 400 mm
Maximum turning length: 1000–3000 mm
Spindle bore: 52–82 mm
Ideal for: precision shafts, bushings, couplings
Swing over bed: 630 mm
Maximum turning length: 1500–5000 mm
Main motor power: 11–15 kW
Ideal for: pump shafts, long rollers, oil pipe threading
Swing over bed: 1250 mm
Maximum turning length: 5000–10000 mm
Steady rest included for long shaft support
Ideal for: marine propeller shafts, large hydraulic cylinders, wind turbine components
Key advantage of horizontal lathes: Chip evacuation is gravity-assisted, and the horizontal spindle allows for longer between-centers work — essential for shaft and tube manufacturing.
Factor | Vertical Lathe (CK5) | Horizontal Lathe (CK6) |
|--------|---------------------|----------------------|
Best workpiece shape | Short & wide (D > L) | Long & narrow (L > D) |
Typical diameter range | 800–5000 mm | 400–1250 mm |
Max workpiece weight | Up to 32 tons | Up to 10 tons |
Chip removal | Manual / coolant flush | Gravity-assisted |
Footprint | Smaller (vertical orientation) | Longer bed required |
Primary industries | Valve, gear, energy | Shaft, pipe, automotive |
Not sure which type fits your workpiece? Contact our engineering team with your part drawings — we will recommend the optimal machine configuration.
Every machine base, column, and table is cast from high-grade Meehanite iron and analyzed with FEA software to minimize vibration and thermal deformation.
Main spindle bearings from SKF or FAG, pre-loaded to maintain accuracy under heavy cutting forces. Radial runout ≤ 0.005 mm on our standard models.
Choose the control system your operators already know. We offer Fanuc 0i-TF, Siemens 828D, and GSK 980TDi as standard options — full parameterization and macro programming supported.
For horizontal lathes, we offer enlarged spindle bores (up to 130 mm) for bar feeding of hexagonal and round stock — critical for valve and fitting manufacturers.
Every machine undergoes a comprehensive FAT at our Dalian facility before shipment. You receive video documentation of every test cut, accuracy measurement, and safety check.
Pricing varies significantly based on specifications, but here are typical ranges for reference:
Model | Turning Diameter | Price Range (FOB Shanghai) |
|-------|-----------------|---------------------------|
CK5112 | 1250 mm | $35,000 – $48,000 |
CK5116 | 1600 mm | $45,000 – $62,000 |
CK5123 | 2300 mm | $78,000 – $110,000 |
CK6140 | 400 mm swing | $12,000 – $22,000 |
CK6163 | 630 mm swing | $22,000 – $38,000 |
CK61125 | 1250 mm swing | $65,000 – $95,000 |
Prices are indicative and depend on control system, tooling package, and optional accessories. Request a formal quotation for your specific requirements.
Valve body turning (vertical lathe)
Drill pipe threading (horizontal lathe with thread cutting)
Christmas tree component machining
Crusher shaft machining
Gear blank turning
Hydraulic cylinder boring and turning
Turbine casing machining
Generator shaft finishing
Wind turbine component turning
Brake drum turning
Axle shaft machining
Crankshaft roughing
Send your requirements — Part drawings, material, production volume, and target tolerances
Engineering review — Our team selects the optimal machine model and configuration
Formal quotation — Detailed pricing with specifications, tooling, and delivery timeline
Factory acceptance test — Video-recorded testing at our facility
Shipping & installation — Worldwide shipping with optional on-site installation and training
What is the lead time for a heavy duty CNC lathe? Standard models: 45–60 days. Custom configurations: 60–90 days.
Do you provide installation and training? Yes. We offer optional on-site installation, operator training, and process optimization at your facility.
What warranty do you offer? 12 months from delivery, covering all manufacturing defects. Extended warranty options available.
Can you customize the machine for my specific workpiece? Absolutely. We regularly modify spindle bore size, chuck configuration, tool turret capacity, and control parameters to match customer requirements.
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Ready to invest in a heavy duty CNC lathe that delivers precision and reliability for years? Send us your part drawings and requirements today — our engineering team will respond with a detailed quotation and machine recommendation within 24 hours.
[Request Your Quotation Now →](/article-inquire.html)
