NEW SMTCL VTC200140 Series Large CNC Vertical Lathe

NEW SMTCL VTC200140 Series Large CNC Vertical Lathe

The SMTCL VTC200140 is a large high-efficiency CNC vertical lathe designed for heavy disc-type, ring-type, flange-type and other large rotary components.

The machine belongs to SMTCL’s VTC-H(m) high-efficiency vertical lathe family and is available in:

• VTC200140 H turning configuration

• VTC200140 Hm turn-milling configuration

The VTC200140 combines a 2000 mm workbench, up to 2300 mm turning diameter, 1600 mm workpiece height and approximately 49,800 Nm maximum workbench torque.

It is designed for customers requiring:

• Large workpiece capacity

• High structural rigidity

• High workbench torque

• Stable heavy-duty turning

• High machining accuracy

• High production efficiency

• Optional turn-milling capability

Typical applications include:

• Large rings

• Large flanges

• Bearing components

• Large discs

• Covers

• Pump components

• Energy-sector components

• Large industrial rotary parts


VTC200140 Key Turning Specifications

Worktable and Capacity

• Workbench diameter: Ø2000 mm

• Maximum rotary diameter: Ø2500 mm

• Maximum turning diameter: Ø2300 mm

• Maximum workpiece height: 1600 mm

• Maximum workbench torque: approximately 49,800 Nm

• Maximum workbench speed: 150 rpm


Main Drive

• Rated main motor power: 51 kW


Ram and Beam

• Ram cross section: 240 × 240 mm

• Beam lifting movement: 1400 mm


Axis Travel

• X-axis travel: -50 to +1400 mm

• Z-axis travel: 1400 mm


Axis Speed

• X-axis rapid traverse: 10 m/min

• Z-axis rapid traverse: 8 m/min


Turning Tool

• Turning tool shank: 40 × 40 mm


Positioning Accuracy

Representative catalogue values:

• X-axis positioning accuracy: approximately 0.025 mm

• Z-axis positioning accuracy: approximately 0.025 mm


Repeat Positioning Accuracy

• X-axis repeat positioning accuracy: approximately 0.010 mm

• Z-axis repeat positioning accuracy: approximately 0.010 mm


Machine Weight

• Approximate machine weight: 45,000 kg


VTC200140 Hm Turn-Milling Configuration

The Hm configuration extends the machine from large vertical turning into an integrated turning and milling platform.

Representative Hm specifications include:

• Workbench diameter: Ø2000 mm

• Maximum rotary diameter: Ø2500 mm

• Maximum turning diameter: Ø2300 mm

• Maximum workpiece height: 1600 mm

• Maximum workbench torque: approximately 49,800 Nm

• Maximum workbench speed: 150 rpm

• Turning main motor rated power: 51 kW

• Milling spindle motor rated power: 29 kW

• Maximum milling spindle speed: 1800 rpm

• Maximum milling spindle torque: 1000 Nm

• C-axis speed range: 0.01–5 rpm

• Tool magazine capacity: 12 tools

• Z-axis travel: 1400 mm

Final Hm X-axis machining range and supplied configuration should be confirmed against the ordered machine specification.


Why Turn-Milling Matters

For a component over 2 metres in diameter, moving the workpiece between separate turning and milling machines can require:

• Crane handling

• Re-clamping

• Re-establishing datums

• Additional fixtures

• Additional inspection

• Additional setup time

The Hm configuration can combine selected turning and milling operations in one setup.

Potential benefits include:

• Reduced workpiece handling

• Reduced crane movements

• Reduced re-clamping

• Improved datum consistency

• Reduced setup time

• Lower work-in-process time

• More complete machining in one machine


Typical Hm operations may include:

• Turning

• Facing

• Internal turning

• External turning

• Grooving

• Face milling

• Drilling

• Tapping

• Bolt-circle machining

• Indexed milling

• C-axis positioning


High-Efficiency VTC-H(m) Series

The VTC200140 belongs to SMTCL’s high-efficiency VTC-H(m) family.

The manufacturer identifies the larger H(m) range as:

• VTC200140

• VTC250140

• VTC350140

• VTC500160

The Series is designed around:

• High rigidity

• High stability

• High machining accuracy

• High production efficiency

• Turn-milling modularisation


High-Rigidity Casting Structure

Major VTC castings use integrated box-type cast-iron construction.

The manufacturer highlights:

• Thick-wall structure

• Reinforced ribbing

• Low centre of gravity

• Thermal treatment to release residual internal stress

• Special scraping of important joint surfaces

These measures are intended to help the machine maintain accuracy and stability during heavy cutting.


High-Rigidity Hard Guideways

The principal feed axes use high-rigidity hard-guideway construction.

The guide surfaces receive dedicated treatment and low-friction wear plates.

Benefits include:

• High rigidity

• Strong load-bearing capacity

• Good accuracy retention

• Stable heavy-load cutting

• High resistance to cutting-force deformation


The manufacturer specifically positions this structure for heavy-duty machining.


Forged-Steel Ram

The VTC Series uses a forged-steel ram with hardened surfaces and precision-scraped guideway mating surfaces.

On the VTC200140:

• Ram cross section: 240 × 240 mm

The ram structure is designed to provide:

• Strong bending rigidity

• High torsional resistance

• Stable Z-axis machining

• Resistance to cutting torque

• Good accuracy retention


High-Rigidity Main Machine Structure

The column, beam and ram-support structure are designed to resist deformation caused by heavy cutting loads.

The manufacturer highlights:

• Increased guideway span

• Increased structural thickness

• Reinforced beam design

• Improved ram support

These characteristics help improve machining stability on large-diameter workpieces.


Symmetrical Thermal Structure

The base and column use a left-right symmetrical layout.

This design is intended to provide:

• Better thermal balance

• Reduced thermal deformation

• Improved long-cycle dimensional stability

Internal mesh-style ribs also increase structural rigidity.


Crossed-Roller Worktable Bearing

The VTC Series uses a high-accuracy large-specification crossed-roller bearing.

The bearing system is designed to withstand combined:

• Axial load

• Radial load

• Workpiece mass

• Cutting forces

• Worktable torque

This provides strong support for stable large-component machining.


49,800 Nm Workbench Torque

A particularly important VTC200140 specification is its:

• Approximately 49,800 Nm maximum workbench torque

This helps explain the machine’s heavy-turning capability more clearly than workbench diameter alone.

The worktable can support:

• Large rotating masses

• Large-diameter turning

• Lower-speed high-load machining

• Heavy roughing

• Stable finishing


High-Accuracy Main Transmission

The manufacturer describes the VTC-H transmission as upgraded from belt transmission to gearbox transmission.

This provides:

• Strong torque transmission

• Accurate segmentation and positioning

• Higher stability

• Turn-milling capability

• C-axis functionality on applicable Hm configurations


The spindle also incorporates constant-temperature cooling to reduce thermal movement.


Double-Motor Worktable Drive

The workbench main drive uses two main motors under CNC synchronous control.

This helps provide:

• Stable worktable rotation

• High torque

• Improved indexing accuracy

• Turn-milling speed regulation

• C-axis anti-backlash control

• Improved surface-quality consistency


Beam Double-Drive Lifting

The manufacturer lists double-drive beam lifting as an available VTC Series feature.

The beam can be repositioned according to workpiece height and then hydraulically clamped.

On VTC200140, the beam lifting movement is:

• 1400 mm

This allows the machine to reduce unnecessary ram extension and maintain better cutting rigidity for different workpiece heights.


Turn-Milling Modularisation

The VTC-H(m) machine platform uses a modular design concept.

The slide structure can accommodate:

• Turning ram

or

• Turn-milling ram

This allows the machine to be configured according to the actual manufacturing process.


H Turning Configuration

Best suited where:

• Turning is the main requirement

• Large rings and flanges dominate

• Milling is not required

• A simpler machine configuration is preferred


Hm Turn-Milling Configuration

Best suited where:

• Turning and milling are both required

• Bolt-circle holes are required

• Face features require milling

• Drilling or tapping is required

• C-axis positioning is beneficial

• Reducing workpiece re-clamping provides a process advantage


Automatic Tool Change

The Hm configuration provides:

• 12-tool magazine

Automatic tool changing can support operations such as:

• Milling

• Drilling

• Tapping

• Boring

• Multi-process machining

This reduces manual tool-change time and supports more complete machining in one setup.


Typical Turning Operations

The VTC200140 H can support:

• External turning

• Internal turning

• Facing

• Grooving

• Bore machining

• Profile turning

• Ring machining

• Flange machining

• Large-diameter contour turning


Additional Hm Operations

The Hm configuration can add:

• Face milling

• Drilling

• Tapping

• Indexed milling

• Hole-circle machining

• C-axis positioning

• Multi-process machining


Typical Industries

The manufacturer positions the VTC-H Series for industries including:

• Wind power

• New energy

• Automotive

• Bearing manufacturing

Manufacturer application examples for VTC-H include:

• Wind-power bearings

• Engine-related components

• Pump bodies

The VTC200140 platform is also suitable for general large rotary components where the actual workpiece and process fall within the machine envelope.


Typical Workpieces

Suitable workpieces may include:

• Large bearing rings

• Large flanges

• Large rings

• Large discs

• Covers

• Pump components

• Rotary housings

• Annular components

• Heavy industrial rotary parts


Why Consider the VTC200140?

The VTC200140 is a strong entry point into SMTCL’s large VTC-H(m) platform.

Key capabilities include:

• Ø2000 mm workbench

• Ø2500 mm maximum rotary diameter

• Ø2300 mm maximum turning diameter

• 1600 mm maximum workpiece height

• Approximately 49,800 Nm workbench torque

• 150 rpm maximum workbench speed

• 51 kW main motor

• 240 × 240 mm forged-steel ram

• 1400 mm beam lifting movement

• X-axis travel from -50 to +1400 mm

• 1400 mm Z-axis travel

• 10 / 8 m/min X/Z rapid traverse

• 40 × 40 mm turning tool shank

• Approx. 45 tonne machine mass

• High-rigidity hard-guideway construction

• Symmetrical thermal structure

• Crossed-roller worktable bearing

• Double-motor worktable drive

• High-accuracy geared transmission

• Hm turn-milling configuration available

• 29 kW milling spindle

• 1800 rpm milling spindle

• 1000 Nm milling torque

• C-axis 0.01–5 rpm

• 12-tool magazine


VTC200140 Compared with VTC250140

VTC200140

• Workbench: Ø2000 mm

• Maximum rotary diameter: Ø2500 mm

• Maximum turning diameter: Ø2300 mm

• Maximum workpiece height: 1600 mm

• Workbench torque: approximately 49,800 Nm

• Maximum speed: 150 rpm

• Main motor: 51 kW

• Ram: 240 × 240 mm

• Beam lifting movement: 1400 mm

• X-axis: -50 to +1400 mm

• Z-axis: 1400 mm

• Machine weight: approximately 45,000 kg


VTC250140

• Workbench: Ø2500 mm

• Maximum rotary diameter: Ø3000 mm

• Maximum turning diameter: Ø2800 mm

• Maximum workpiece height: 1600 mm

• Workbench torque: approximately 69,000 Nm

• Maximum speed: 120 rpm

• Main motor: 51 kW

• Ram: 280 × 280 mm

• Beam lifting movement: 1400 mm

• X-axis: -50 to +1600 mm

• Z-axis: 1400 mm

• Machine weight: approximately 60,500 kg


The move from VTC200140 to VTC250140 therefore provides:

• 500 mm larger workbench

• 500 mm greater turning diameter

• Higher workbench torque

• Larger 280 × 280 mm ram

• Greater radial travel

• Significantly heavier machine structure


Both machines retain:

• 1600 mm workpiece height

• 51 kW turning motor

• 1400 mm Z-axis travel


Choose VTC200140 where:

• Workpieces remain within approximately Ø2300 mm turning diameter

• Ø2000 mm workbench is sufficient

• 49,800 Nm table torque meets the application

• A smaller large-VTC platform is preferred


Choose VTC250140 where:

• Workpieces extend toward Ø2800 mm

• Greater table torque is required

• The larger 280 × 280 mm ram provides a useful rigidity advantage

• A larger clamping platform is needed


VTC200140 Compared with VTC350140

VTC200140

• Ø2300 mm maximum turning diameter

• 1600 mm workpiece height

• 49,800 Nm workbench torque

• 51 kW main motor

• 240 × 240 mm ram

• Approx. 45 tonnes


VTC350140

• Ø3800 mm maximum turning diameter

• 2000 mm workpiece height

• Approx. 82,600 Nm workbench torque

• 81 kW main motor

• 280 × 280 mm ram

• Approx. 97 tonnes


The VTC350140 represents a substantial jump in:

• Workpiece diameter

• Workpiece height

• Main motor power

• Workbench torque

• Machine structural mass


The VTC200140 should therefore not be oversized unnecessarily where the actual workpiece fits comfortably within its capacity.


Large VTC-H(m) Selection Guide

VTC200140

• Workbench: Ø2000 mm

• Maximum turning diameter: Ø2300 mm

• Maximum workpiece height: 1600 mm

Best suited for:

• Large rings

• Large discs

• Large flanges

• Medium-large industrial rotary components


VTC250140

• Workbench: Ø2500 mm

• Maximum turning diameter: Ø2800 mm

• Maximum workpiece height: 1600 mm

Best suited for:

• Larger rings and flanges

• Large bearing components

• Heavier annular workpieces


VTC350140

• Workbench: Ø3500 mm

• Maximum turning diameter: Ø3800 mm

• Maximum workpiece height: 2000 mm

Best suited for:

• Very large rings

• Large energy-sector components

• Heavy industrial rotary workpieces


VTC500160

• Workbench: Ø4500 mm

• Maximum turning diameter: Ø5000 mm

• Maximum workpiece height: 3000 mm

Best suited for:

• Ultra-large rotary components

• Very large rings and flanges

• Large energy and heavy-industry workpieces


Machine Selection and Configuration

The correct VTC200140 configuration should be selected according to the actual component and process.

Please provide:

• Maximum raw workpiece diameter

• Maximum finished turning diameter

• Maximum workpiece height

• Maximum workpiece weight

• Workpiece material

• Drawing or 3D model

• External turning requirements

• Internal turning requirements

• Bore size and depth

• Facing requirements

• Grooving requirements

• Milling requirements

• Drilling requirements

• Tapping requirements

• C-axis requirements

• Required tolerances

• Surface finish requirements

• Production quantity

• Workholding concept

• Workpiece loading method

• Crane capacity

• Tooling requirements

• Tool magazine requirement

• Workpiece measurement requirement

• Tool measurement requirement

• Coolant requirement

• Chip-management requirement

• Foundation information

• Available installation space

• Electrical supply

MachineryPLUS can assist with reviewing the complete machining requirement before the final machine configuration is selected.


Configuration Before Quotation

The following should be confirmed before final quotation:

• VTC200140 H turning or Hm turn-milling configuration

• CNC system

• Workbench / workholding arrangement

• Turning tooling

• Milling tooling where required

• C-axis requirement

• Tool magazine

• Linear scales

• Workpiece probing

• Tool measurement

• Coolant system

• High-pressure coolant if required

• Chip-removal system

• Guarding

• Oil mist collection

• Foundation design

• Installation requirements

• Site electrical requirements

• Operator and maintenance training

Final technical specifications depend on the ordered configuration.

Manufacturer catalogue parameters are subject to change with continued product development.


Complete Your Machine Setup

MachineryPLUS can also assist with:

• Large CNC vertical lathe selection

• Heavy-duty turning tools

• Grooving tools

• Large boring bars

• Large-diameter face mills

• Milling cutters

• Indexable drills

• Threading tools

• Tool holders

• Large-component workholding

• Custom fixtures

• Workpiece measurement

• Tool measurement

• Coolant systems

• Chip management

• Tool management

• Workpiece handling

• Automation

• Integrated manufacturing solutions


Explore More from MachineryPLUS

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MachineryPLUS can support customers from individual machine selection through to tooling, workholding, automation and integrated manufacturing solutions.

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