Starrag Dorries VC Series
Key Specifications
Spindle Power
Max Turn Length
machine type
models
table diameter range
max workpiece weight
Overview
The Starrag Dorries VC Series is a family of double-column (portal design) vertical turning lathes for the largest and heaviest rotation-symmetric components in power generation, marine, mining, and heavy industrial applications. Scales from VC 3500 to VC 12000 with workpiece weights up to 350,000 kg (771,618 lb).
Table diameters range from 3,000-3,500 mm up to 9,000-10,000 mm. Main drive 120-300 kW (S1 continuous). Portal design provides rigidity for machining workpieces weighing hundreds of tonnes. Cast iron construction for damping and thermal stability.
Supports drilling, milling, and grinding beyond turning. Siemens SINUMERIK ONE control (latest generation) with digital twin support and Industry 4.0.
New machines: $3,000,000 to $20,000,000+.
Full Specifications
| Parameter | Value |
|---|---|
| Machine Type | Double-column (portal) vertical turning lathe |
| Models | VC 3500 through VC 12000 |
| Table Diameter Range | 3,000 - 10,000 mm (118 - 394 in) |
| Max Workpiece Weight | Up to 350,000 kg (771,618 lb) |
| Main Drive Power | 120 - 300 kW (S1 continuous) |
| Operations | Turning, drilling, milling, grinding |
| Construction | Portal design, cast iron |
| CNC Control | Siemens SINUMERIK ONE |
| Max Turning Diameter | 1,400 to 12,000 mm |
| Max Turning Length | 10,000 mm |
| Spindle Motor Power | 120 – 300 kW (S1 operation) |
| Table Load Max | 350,000 kg (350 tons) |
| Cnc Control | Siemens SINUMERIK ONE |
Specifications sourced from starrag.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Table diameters up to 10,000 mm and weights up to 350,000 kg
- Portal design provides rigidity for extremely heavy workpieces
- Main drive up to 300 kW for sustained heavy-duty turning
- Multifunctional turning, drilling, milling, grinding
- Siemens SINUMERIK ONE with digital twin
- Cast iron for superior damping and thermal stability
Limitations
- Extreme scale and cost at $3M-20M+
- Enormous footprint and foundation requirements
- Lead times of 18-36+ months
- Proportionally extreme operating costs
Best For
Frequently Asked Questions
01
Table diameters 3,000-10,000 mm, workpiece weights up to 350,000 kg.
02
VT: single-column, up to 17,000 kg. VC: double-column portal, up to 350,000 kg.
03
Siemens SINUMERIK ONE, latest generation with digital twin.
04
Yes, drilling, milling, and grinding for complete machining.
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