About Heavy-Duty Large-Size CNC Turning & Boring Machine
Core Highlights
- Heavy-duty flat-bed CNC lathe for large & heavy workpieces
- Max swing diameter over bed1040mm
- Max turning diameter630mm
- Max workpiece length3000mm / 4000mm
- Heavy loadmax workpiece weight up to 6 tons
- High rigidity bed + hardened guideway for long-term precision
- Powerful 37kW servo main motormax spindle torque 11kNm
- Ideal for heavy shafts, cylinders, flanges, rolls, deep hole blanks
Full Technical Specifications
Overall Parameters
- Max swing diameter over bed1040 mm
- Max turning diameter630 mm
- Max workpiece length between centers3000 mm / 4000 mm
- Guideway width755 mm
- Max workpiece weight between centers6 tons
Spindle
- Front bearing bore diameter200 mm
- Spindle through hole130 mm
- Spindle nose typeA2-15
- Spindle speed range5315 r/min
- Main motorAC servo 37 kW
- Max spindle torque11 kNm
- Chuck1000 mm manual 4jaw chuck
Travel & Feed
- X-axis travel750 mm
- Z-axis travel2850 mm / 3850 mm
- Min feed increment0.01 mm (X & Z)
- Rapid traverse4000 mm/min (X & Z)
Tailstock
- Quill diameter160 mm
- Max quill travel300 mm
- Spindle taperMetric 80
Accuracy
- Roundness0.01 mm
- Cylindricity (300mm)0.025 mm
- Surface roughnessRa 1.6 m
Main Structure & Key Components
1. HeavyDuty Machine Bed
- HT300 highstrength resin sand casting
- One V + one flat + 45 auxiliary guideway design
- Mediumfrequency hardened guidewaydeep hardening for regrinding
- Wshape internal ribshigh rigidity & antideformation
- Double aging treatmentstress relievedlongterm stability
- Rear chip evacuation slopeseasy chip removal & coolant recovery

2. HighRigidity Headstock
- Integral structuredirectly mounted on bed
- Threepoint spindle supportfront fixed, middle/rear floating
- Frontend axial positioningcompensates thermal elongation
- Hydraulic 4speed gear shifting
- Forced lubrication systemdedicated oil pump for gears/bearings
- Labyrinth + tooth groove double sealingno oil leakage
3. HeavyDuty Carriage & Tool Post
- Highrigidity carriage for heavy turning & boring
- Ball screw drive (X & Z)P4 precision angular contact bearings
- Preloaded & pretensioned ball screwshigh axial rigidity
- Vertical 4station turretflexible indexing & reliable positioning

4. HeavyDuty Tailstock
- Fixed tailstock center60 heavyduty live center
- Manual quill extension/retraction
- Carriagedragged tailstock movement
- Antislip rodprevents workpiece slippage under heavy load

5. Optional Systems
- Cooling systemprotects tools & workpieces
- Semienclosed protectiondouble sliding door
- Automatic chip conveyorintegrated water tank & recycling
- Boring tool holder assemblyfor deep internal boring
- Roller steady rest70480mm clamping range

Key Advantages
UltraLarge Workpiece Capacity
Swing 1040mm, length up to 4m, load up to 6 tons built for heavy industrial components.
Exceptional Rigidity & Stability
Thick cast bed, hardened guideway, reinforced ribs, double aging minimal deformation under heavy cuts.
Powerful & Stable Spindle
37kW servo motor + 11kNm torque + hydraulic 4speed smooth heavy turning, strong cutting force.
High Precision Machining
Roundness 0.01mm, cylindricity 0.025mm, Ra1.6 finish meets highprecision industrial requirements.
Versatile for Complex Parts
Supports external turning, facing, grooving, threading, boring, deep hole premachining one machine for multiple processes.
Durable & Low Maintenance
Proven heavyduty design, standardised components, simple daily maintenance reliable for continuous production.
Wide Applications
- Heavy duty shafts & large rollers
- Hydraulic cylinder barrels & flanges
- Deep hole drill blanks & tool bar blanks
- Petrochemical & energy industry parts
- Engineering machinery & heavy equipment components
- Steel & metallurgy largesize workpieces
Contact Us for Details
Unmatched Power and PrecisionThis CNC turning and boring machine boasts a 45 kW spindle motor, centralized auto lubrication, and high-pressure flood coolant system to ensure sustained operational efficiency and component longevity. Its massive cutting thickness capability (up to 1000 mm) and max swing diameter (up to 4000 mm) enable handling of the largest workpieces with consistent precision, supporting high-grade steel alloys and cast iron.
Automation and User-Friendly ControlEquipped with a fully automatic operation mode, a 12-position auto-index turret, and a programmable heavy-duty tailstock, the machine streamlines complex machining processes. The intuitive Touch Screen HMI and robust Siemens/Fanuc CNC controller support standard graphic formats like G-Code and DXF, enhancing both programmability and operator experience.
FAQ's of Heavy-Duty Large-Size CNC Turning & Boring Machine:
Q: How does the machine maintain high precision during heavy-duty operations?
A: The machine incorporates a rigid box-type bed structure, anti-vibration features, and an advanced 12-position auto tool turret to mitigate deflection and vibration, ensuring high-precision machining with a surface finish accuracy of Ra 0.8-2.0 m, even with large and heavy workpieces.
Q: What types of workpieces and industries is this CNC machine suitable for?
A: Designed for large-scale applications, it efficiently machines workpieces up to 12,000 kg, making it ideal for the energy, marine, aerospace, and steel fabrication industries. Its customizable engraving area and support for large swing diameters expand its applicability across various heavy industries.
Q: When should centralized automatic lubrication and high-pressure coolant be utilized?
A: These systems operate continuously during machining to reduce friction, ensure consistent lubrication, and keep the work area cool. This is particularly beneficial during extended cutting cycles or when processing thick, tough materials, protecting both the machine and the final product.
Q: Where can the machine be installed, and what are the electrical requirements?
A: This heavy-duty machine is designed for spacious industrial workshops and factories. It requires a three-phase electrical supply of 380V or 415V at 50/60 Hz and should be installed on reinforced flooring to safely handle its 32,000 kg weight.
Q: What is the typical process for operating the machine using the Touch Screen HMI?
A: Operators load G-Code or DXF files via the touch screen HMI, set up workpiece and tool parameters, and monitor program execution in real-time. The programmable tailstock and fully automatic grade streamline setup, while safety interlocks ensure secure operation throughout the process.
Q: What benefits does the programmable tailstock offer for machining large components?
A: The programmable, heavy-duty tailstock provides optimal support and stabilization for elongated or heavy parts, minimizing deflection and improving machining accuracy and surface quality, essential for producing precision components in high-value industries.