China CNC Lathe Manufacturers Factory - Good Price CNC Lathe for Sale

Product Overview

A CNC lathe executes programmed instructions to rotate raw bar stock or billets against stationary cutting tools, generating symmetrical external and internal diameters, tapers, contours, and threads. The bed structure features heavily ribbed Meehanite cast iron, stress-relieved through thermal annealing to absorb high-frequency vibration during heavy roughing passes. Linear guide rails mounted on precision-ground surfaces deliver rapid traverse rates of 30 m/min on the X-axis and 36 m/min on the Z-axis, maintaining consistent positioning accuracy under continuous multi-shift production schedules.

Heavy-duty CNC Lathe
model：CK61125*2000 max. length of workpiece (mm)：4000 positioning accuracy (mm)：±0.005 repeatability (x/y/z) (mm)：±0.003
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CNC Turning Lathe Machine
model：CK6140 type：Horizontal
max. length of workpiece (mm)：750
positioning accuracy (mm)：±0.001
repeatability (x/y/z) (mm)：±0.004
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Desktop CNC Lathe Machine
X-axis travel：105mm
Z-axis travel：270mm
Spindle bore dia.：26mm
Spindle taper：MT4
Spindle speed：3000rpm
Spindle motor power：1.2kw
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Cnc Metal Turning
Model：CK61125*1500
max. length of workpiece (mm):3000
positioning accuracy (mm):±0.005
epeatability (x/y/z) (mm)：±0.003
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Automatic Cnc Turning Machine
Model：CK61100*5000
max. length of workpiece (mm)：5000
repeatability (x/y/z) (mm)：±0.005
positioning accuracy (mm)：±0.005
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Cnc Lathes And Turning Machines
Product model：CK6150*1000
CK seres CNC lathe is contolled y axis Z and X and can firish al kinds of Cuting and uming on shats and discs.such as oyindrical surfaces, circular conicalsuraces,...
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CNC Precision Automatic Lathe
CNC Precision Automatic Lathe
Max. swing over bed: 500mm / 630mm
Max. swing diameter over the carriage：275mm
Max. Workpiece length：500mm / 1000mm / 1500mm / 2000mm
Spindle...
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CNC Vertical Turning Lathe Machine
The CNC vertical turning lathe machine is suitable for high-speed steel tools, carbide tools, and various high-performance tools to process ferrous metals, non-ferrous metals, and some...
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Flat Bed Lathe Machine
Flat Bed Lathe Machine
Max. swing over bed: 800mm / 1000mm
Max. swing diameter over the carriage：480mm / 580mm
Max. Workpiece length：1000mm / 2000mm / 300mm...
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Large CNC Turning
Large CNC Turning Lathe
Max. swing over bed:1320mm
Max. workpiece length: 1000mm（customer-made）
Max. turning diameter: 845mm(Shaft)
Max. load between...
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Heavy Duty CNC Lathe Machine
Heavy Duty CNC Lathe Machine
Max. swing over bed: 1500mm（customer-made）
Max. swing diameter over the carriage：1000mm
Max. Workpiece length：1000mm / 200mm /...
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CNC Lathe Machine CK6140
CNC Lathe Machine CK6140
Max. swing over bed: 400mm
Max. swing diameter over the carriage：210mm
Max. Workpiece length：750mm / 1000mm / 1500mm / 2000mm
Spindle speed...
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Key Features

Rigid Spindle Cartridge

Supported by high-precision P4-grade angular contact ball bearings, handling radial and axial loads up to 4000 RPM with runout maintained below 0.002 mm.

Hydraulic Turret

Bi-directional indexing via a heavy-duty face gear coupling ensures high clamping rigidity and index times under 0.5 seconds for 12-station tool setups.

Direct-Drive Ball Screws

C3-grade precision ground ball screws coupled directly to AC servo motors via zero-backlash couplings, eliminating thermal elongation errors.

Integrated Chip Management

Slanted bed design at a 30 degree angle promotes gravity-fed chip evacuation into a rear-discharge conveyor, preventing thermal distortion from hot chip accumulation.

Machining Capabilities

Operation	Material Compatibility	Achievable Tolerance	Surface Finish (Ra)
Outer Diameter Turning	Carbon Steel, Alloy Steel, Stainless Steel (304/316)	Plus or minus 0.005 mm	0.8 um
Internal Boring	Cast Iron, Aluminum Alloys (6061/7075)	Plus or minus 0.008 mm	1.6 um
Thread Cutting	Titanium, Inconel, Brass	Metric / Unified Inch Class 2A/3A	1.2 um
Grooving & Parting	Hardened Steels up to HRC 55	Plus or minus 0.010 mm	1.6 um

Machine Configuration

Controller

Fanuc 0i-TF Plus or Siemens SINUMERIK 828D with conversational programming and manual guide i.

Drive System

AC spindle motor delivering 11 kW continuous output torque; X/Z axis servo motors with absolute encoders.

Workholding

8-inch hydraulic hollow three-jaw chuck with programmable clamping pressure regulation.

Coolant System

High-pressure pump (1.5 kW, 0.6 MPa) with dual-stage filtration for deep-hole drilling and chip breaking.

Lubrication

Automatic metered grease/oil lubrication delivered to guide rails and ball screws at timed intervals.

Application

Automotive: Production of transmission shafts, steering knuckles, and CV joint components from forged alloy steel blanks.

Aerospace: Machining actuator bodies and landing gear pins from high-strength titanium and nickel-based superalloys.

Oil & Gas: Threading API compliant sucker rods, couplings, and drill collars with strict geometric tolerance mandates.

General Engineering: Batch manufacturing of hydraulic cylinder pistons, valve spools, and motor housings.

How to Choose

01/

Evaluate Component Envelope: Match the maximum swing over bed (> 500 mm) and maximum machining length (> 750 mm) against your largest production workpiece drawing.

02/

Determine Spindle Bore Requirements: Ensure the spindle through-hole diameter accommodates your maximum bar stock size (e.g., dia 65 mm or dia 82 mm) for automated bar feeder integration.

03/

Select Turret Configuration: Choose a standard 12-station turret for static turning tools, or specify live tooling (C-axis and driven tools) if off-center milling and cross-drilling operations are required in a single chucking.

04/

Verify Rigidity Needs: Opt for box-way construction over linear guide rails if your primary work involves continuous deep cuts in hard materials requiring maximum vibration damping.

Manufacturing & Quality Control

Bed Casting Inspection

Ultrasonic testing performed on Meehanite castings to detect internal porosity or structural anomalies prior to machining.

Precision Machining

Guide rail mounting surfaces milled and ground on heavy-duty plano-millers in a temperature-controlled (20 deg C) metrology environment.

Laser Interferometer Calibration

Axis positioning and backlash verified using Renishaw laser interferometers to certify compliance with ISO 230-2 standards.

Ballbar Testing

Circular interpolation tests executed to verify contouring accuracy, squareness, and servo mismatch before final sign-off.

Thermal Run Test

Spindle operated at maximum RPM for 4 consecutive hours to monitor bearing temperature stabilization and thermal growth limits.

Optional Configuration

C-Axis & Live Tooling: Enables milling, drilling, and tapping operations on the turned workpiece face and periphery.

Hydraulic Tailstock: Programmable quill thrust for supporting long, slender shafts during heavy turning operations.

Part Catcher & Bar Feeder: Automated parts unloading chute combined with a pneumatic bar loader for lights-out unattended manufacturing.

Tool Setter & Part Probe: Renishaw contact tool touch-setters for automatic offset measurement and broken tool detection.

Mist Collector: Electrostatic air filtration unit capturing oil mist generated during high-speed coolant application.

FAQ

Q: What is the standard thermal stabilization time required before starting precision production runs?

A: Run the spindle at 50% max RPM for 15 minutes with coolant active to allow uniform thermal expansion across the headstock casting, stabilizing dimensions within a plus or minus 0.003 mm window.

Q: Can this lathe integrate with existing bar feeder systems without custom PLC rewriting?

A: Yes. The machine includes a standard SPI/Euromap 67 interface port and auxiliary M-codes, enabling plug-and-play connectivity with LNS, FMB, and Samchully bar feeders.

Q: What is the positioning repeatability variance across extended multi-shift operation?

A: Under stable ambient shop floor conditions (20 deg C plus or minus 2 deg C), axis repeatability is maintained within 0.002 mm (2 microns) per ISO 230-2 standards.

Q: How is backlash compensated on the X and Z axes over the machine lifecycle?

A: The Fanuc/Siemens controller utilizes bidirectional pitch error compensation tables mapped across 100-point intervals along the ball screws, automatically offsetting mechanical wear.

Q: What are the incoming electrical power requirements for the standard 11 kW spindle configuration?

A: The machine requires a 3-phase, 380V / 480V (plus or minus 10%), 50/60 Hz power supply with a dedicated ground wire and a minimum transformer capacity of 25 kVA.

Q: What documentation is delivered alongside the machine for QA and compliance audits?

A: Each unit ships with an individual Laser Calibration Test Report, Ballbar Test Certificate, Electrical Circuit Diagrams, Hydraulic Schematics, and the original CNC Controller Parameter Backup USB.

As one of the most professional cnc lathe manufacturers in China, we're featured by quality products and good price. Please rest assured to buy high-grade cnc lathe for sale here from our factory. If you have any enquiry about cooperation, please feel free to email us.

Automatic Metal Turning Machine, CNC Lathe for Precision Components, Industrial Turning Equipment