Vertical Turning Center

The Double-Column CNC Vertical Turning Center is built for high-precision turning, boring, facing, and profiling of large-diameter, high-tonnage rotational components. By securing the workpiece horizontally onto a high-torque rotary table, the entire structural weight is supported vertically by the machine foundation—eliminating component deflection and clamping distortion inherent in horizontal turning lathes.

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Product Introduction

The Double-Column CNC Vertical Turning Center is built for high-precision turning, boring, facing, and profiling of large-diameter, high-tonnage rotational components. By securing the workpiece horizontally onto a high-torque rotary table, the entire structural weight is supported vertically by the machine foundation-eliminating component deflection and clamping distortion inherent in horizontal turning lathes.

Technical Specifications

Parameter	Unit	Engineering Standard Range
Max. Turning Diameter	mm	1,250 / 1,600 / 2,000 / 2,500+
Max. Workpiece Height	mm	1,000 – 2,200
Max. Table Load Capacity	kg / t	4,000 – 15,000+ (4 – 15+ tons)
Table Diameter	mm	1,000 – 2,200
Table Speed Range	rpm	1 – 250 (Variable Step / Direct Drive)
Max. Table Torque	N·m	Up to 35,000+
Ram Cross-Section	mm	200 × 200 / 240 × 240
Ram Travel (Z-Axis)	mm	800 – 1,200
Cross Rail Travel (Vertical)	mm	700 – 1,500
Main Drive Motor Power	kW	37 / 45 / 55 (High Torque)
CNC Control System	-	FANUC 0i-TF / Siemens 828D / 840D SL
Tool Changer (ATC)	Tools	Optional 12 / 16 / 24 Station

Key Machine Advantages

Vertical Gravity Support: Direct table loading supports heavy workpieces safely, simplifying loading, alignment, and workholding for large-scale parts.
High-Rigidity Frame Structure: Cast from high-grade Meehanite iron and thermally stress-relieved to eliminate internal stress, ensuring long-term geometric accuracy and chatter-free rough cutting.
High-Torque Rotary Table: Powered by a heavy-duty multi-speed gearbox or direct-drive motor, delivering maximum torque at low RPMs for deep roughing operations.
Rigid Ram & Cross Rail: Hardened and precision-ground guideways (or heavy-duty linear roller guides) ensure high positioning accuracy during deep-hole boring and heavy facing.
Flexible Modular Options: Available with C-axis contouring, live tooling heads (milling, drilling, tapping), elevating cross-rail, and Automatic Tool Changer for single-setup complete machining.
Turnkey Engineering Configuration: Table load, swing envelope, axis travel, ram size, and tooling systems are tailored directly around your workpiece drawings and production requirements.

Industry Applications

Oil & Gas / Fluid Control: Valve bodies, blowout preventers (BOP), casing heads, large flanges.
Power & Renewable Energy: Wind turbine slewing bearings, turbine discs, generator hubs.
Mining & Heavy Equipment: Drive wheels, large pulleys, ring gears, pump housings, marine stern tube bushings.

Workpiece Capacity and Machining Envelope

Optimal performance starts with your component geometry, not a generic machine brochure. Key parameters used to configure your turning center include:
Workpiece Dimensions: Maximum OD, minimum ID, and total overall height.
Weight Envelope: Net part weight plus fixture mass.
Material Profile: Forged alloy steel, stainless steel, ductile iron, Inconel, or aluminum.
Process Scope: Rough turning, finish boring, grooving, thread chasing, or secondary milling/drilling.

CNC Turning and Heavy-Duty Cutting

The machine easily executes standard and complex geometry profiles:
Turning & Boring: OD turning, ID boring, facing, step turning, taper turning, chamfering, and profiling.
Threading & Grooving: Internal/external thread cutting, face grooving, and undercut machining.
Heavy Roughing: Designed to handle deep cuts and high feed rates in tough materials without losing dynamic stability.

Quality Assurance Standard Protocol

Every machine undergoes a rigorous pre-shipment testing protocol prior to customer dispatch:
Geometric Accuracy Test: ISO 230-1 standard verification.
Laser Interferometer Alignment: Pitch, yaw, and positioning compensation across all linear axes (X / Z).
48-Hour Full Load Running Test: Spindle temperature monitoring, hydraulic stability checks, and dynamic spindle balance analysis.
Trial Machining Verification: Customer-specific workpiece trial or standardized test cut upon request.

Packaging & Global Logistics

Seaworthy Protection: VCI anti-rust oil application, vacuum foil wrap packaging, and heavy-duty steel skid mounting.
Component Demounting: Cross-rail and column assemblies packed in dedicated containerized frames with impact sensors.

After-Sales & Field Technical Support

Installation & Commissioning: On-site foundation guidance, machine leveling, and CNC setup by certified engineers.
Warranty & Parts: 12-month comprehensive machine warranty; critical spare parts dispatched via express air freight within 48 hours.
Remote Diagnostics: Fast online technical service via direct CNC network connection for troubleshooting and software updates.

FAQ

Q: What basic parameters are needed to select the correct VTC machine model?

A: We require the maximum workpiece outer diameter, total height, maximum combined part/fixture weight, material grade, and a drawing showing the required machining features.

Q: Can the machine perform milling, drilling, and turning in one setup?

A: Yes. By adding the optional C-axis rotary table, live tooling head, and ATC system, the VTC functions as a multi-tasking turning center capable of milling slots, drilling pitch circles, and tapping threads without re-clamping.

Q: How do you ensure accuracy for heavy workpieces over 10 tons?

A: The machine table uses high-capacity hydrostatic or precision cross-roller bearings mounted on a rigid Meehanite iron bed. This design distributes structural loads evenly into the foundation, keeping bed deflection within micro-meter tolerances under maximum rated loads.

Q: What is the typical lead time and shipping arrangement?

A: Standard models require 60 to 90 days from drawing sign-off to factory acceptance testing. Specialized configurations with custom travel or heavy-duty live tooling heads may extend lead times to 120 days.

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