Heavy-duty vertical turning solutions engineered for large-diameter components requiring structural rigidity, dimensional accuracy, and stable machining performance.
Our CNC and Conventional Vertical Turning Lathes (VTL) are designed to handle oversized and high-weight workpieces while maintaining controlled tolerances and surface finishes across diverse industrial applications.
Heavy-duty vertical turning platforms built for stability, torque, and consistent large-format machining
ā Large-Diameter Turning
ā Heavy-Duty Facing
ā Deep Boring Operations
ā Grooving & Drilling
ā Threading & Structural Machining
Integrated Quality Control
Quality control is integrated throughout our CNC Vertical Turning Lathe (VTL) operations to ensure precision, consistency, and machining reliability for large and heavy-duty components. Beginning with raw material verification, every stage of the machining process follows strict inspection and process monitoring procedures.
In-process inspections are conducted to verify critical parameters such as outer diameter, bore dimensions, face runout, concentricity, perpendicular, and surface finish using calibrated measuring instruments including bore gauges, vernier calipers, micrometers, height gauges, and dial indicators. Final inspection ensures all machined components comply with customer drawings, dimensional tolerances, and applicable industry standards.
Quality control is maintained throughout our Conventional Vertical Turning Lathe (VTL) operations to ensure accuracy, structural integrity, and machining reliability for large-diameter and heavy-duty components. From raw material inspection to final machining validation, every stage follows defined quality inspection procedures.
Critical parameters such as outer diameter, bore size, concentricity, perpendicularity, face runout, and surface finish are monitored through in-process inspections using calibrated measuring tools including bore gauges, vernier calipers, dial indicators, depth gauges, and precision measuring instruments. Final inspection is carried out to verify compliance with customer specifications and machining standards.
CNC & Conventional VTL for Demanding Applications
Our CNC & Conventional VTL Machining operations support a wide range of materials and dimensional requirements āfor large industrial components.
Table Diameter up to 5,000 mm
Max Swing Diameter up to 7,000 mm
Workpiece Weight up to 100 Tons
Mild Steel to
Cast Iron
Prototype to Production
Tolerance Capability up to Ā±0.025 mm
Surface Finish down to Ra 0.8 Āµm
Materials we machine
| Carbon SteelĀ 1018, 1045Ā Ā |
Stainless Steel 304, 316 |
| Alloy Steel 4140, 4340 |
Tool Steel D2, M2, A2 |
| Aluminum 6061, 7075, ADC12 |
Brass C36000, C37700 |
| Copper C11000, C10200 |
Cast Iron Gray, Ductile, SG series |
Dimensional Capability
Our CNC VTL to accommodate oversized components with high structural stability and radial control.
| Parameter | Capability |
|---|---|
| Diameter Range | 600 mm ā 5,000 mm |
| Max Swing Diameter | 800 mm ā 7,000 mm |
| Max Turning Height | 500 mm ā 5,000 mm |
| Max Workpiece Weight | 2 Tons ā 100 Tons |
| Spindle Speed | 10 ā 500 RPM |
Machine Specifications ā CNC VTL
High-torque CNC vertical turning systems for precision and repeatable large-component machining
Turret Tool Stations: 4 ā 12
Table Diameter Capacity up to 5,000 mm
CNC-Controlled Axis Positioning
Swing Diameter up to 7,000 mm
Spindle Speed Range: 10 ā 500 RPM
Spindle Speed Range: 10 ā 500 RPM
High Torque Drive Systems
Machine Specifications ā CNC VTL
Conventional VTL -Manual and semi-automated vertical turning platforms suitable for heavy roughing and structural machining operations
Turret Tool Stations: 4 ā 12
Table Diameter Capacity:600 mm ā 5,000 mm
CNC Retrofit Options Available
Adjustable Feed Rates
Workpiece Capacity: Up to 100 Tons
Max Turning Height: Up to 5,000 mm
Swing Diameter up to 7,000 mm
Integrated Quality Control
All CNC & Conventional VTL operations are supported by in-process inspection, calibrated measurement tools, and ISO-aligned quality management systems to ensure dimensional consistency and repeatability.
- Engineering & Validation Infrastructure
At Graphler Precision Manufacturing, our production capabilities are supported by structured engineering processes, inspection systems, and technical validation practices that ensure precision, reliability, and repeatability at every stage.
Process Engineering Support
We conduct feasibility reviews, DFM analysis, and machining strategy planning to optimize, manufacturability, reduce risk, and improve production efficiency before execution begins.
Dimensional Inspection & Verification
Our quality systems incorporate calibrated measurement tools, in-process inspection, and final validation to ensure components meet specified tolerances and functional requirements.
Continuous Process Optimization
Through structured feedback loops and performance monitoring, we refine cycle times, tool strategies, and machining parameters to deliver consistent quality and scalable production outcomes.