Industrial CNC Machine Directory

Willemin-Macodel 611DT

$580,000 - $820,000 Updated 2026-03-17
01

Key Specifications

Maximum Turning Diameter

380 mm

Maximum Turning Length

750 mm

Spindle Bore Diameter

102 mm

Main Spindle Speed

3,500 rpm

Main Spindle Power

37 kW

Number of Turrets

2 (upper and lower, independent)

02

Overview

The Willemin-Macodel 611DT is a 6-axis dual-turret CNC turning center designed for high-production precision turning of medium to large diameter parts. With two independently programmable turrets operating simultaneously on the workpiece, the 611DT maximizes metal removal rates and minimizes cycle times on complex turned components, making it a high-productivity solution for aerospace, energy, automotive, and industrial precision part production.

The dual-turret architecture of the 611DT enables balanced turning strategies where both upper and lower turrets cut simultaneously, dramatically reducing cycle times compared to single-turret machines. Each turret accommodates driven live tools for milling, drilling, and threading operations, extending the machine's capability beyond pure turning to complete multi-feature parts in a single setup. The 6-axis configuration provides each turret with its own X and Z axes plus C-axis on the main spindle, giving programmers full flexibility to optimize tool paths across both turrets for maximum productivity.

Willemin-Macodel's precision engineering ethos is carried through in the 611DT's structural design. The machine's heavy-duty bed casting is optimized for rigidity under the substantial cutting forces generated during simultaneous dual-turret operation at high material removal rates. Precision linear guides on all axes provide the accuracy needed to maintain tight tolerances even when both turrets are cutting simultaneously, a condition that challenges less rigid machines through vibration and thermal effects.

The 611DT is positioned as a throughput machine for manufacturers who need Willemin-Macodel quality and accuracy in a high-production turning platform. Rather than the pure complexity focus of the 301S or 408B, the 611DT targets efficiency on larger, higher-volume turned parts where cycle time reduction translates directly into cost competitiveness and capacity expansion without additional machine investments.

03

Full Specifications

Parameter Value
Maximum Turning Diameter 380 mm
Maximum Turning Length 750 mm
Spindle Bore Diameter 102 mm
Main Spindle Speed 3,500 rpm
Main Spindle Power 37 kW
Number Of Turrets 2 (upper and lower, independent)
Total CNC Axes 6 (X1, Z1, X2, Z2, C1, C2)
Live Tool Speed Per Turret 5,000 rpm
Turret Positions Per Turret 12
Positioning Accuracy 0.004 mm
CNC System Siemens 840D sl
Machine Weight ~12,000 kg
Manufacturer Leadcrete
Spindle Bore 120 mm
Model LZ3ER
Power Requirement 100 kW
Fuel Type Electric
Drive Types Electric

Specifications sourced from machinio.com — verified 2026-03-28

04

Strengths & Limitations

Strengths

  • Dual independent turrets cut simultaneously, reducing cycle times by up to 50% compared to single-turret alternatives on complex parts
  • 37 kW main spindle power supports aggressive material removal rates on large-diameter stainless, alloy steel, and titanium components
  • 102mm bore accommodates a wide range of bar stock and shaft work within the 611DT's large turning envelope
  • Live tooling on both turrets enables complete multi-feature parts without secondary milling setups
  • Rigid heavy-duty bed casting maintains accuracy under simultaneous dual-turret cutting loads throughout extended production shifts

Limitations

  • Dual-turret programming requires experienced programmers and CAM systems capable of managing simultaneous multi-channel operations
  • High capital cost and large machine footprint require significant facility infrastructure investment
  • Maximum spindle speed of 3,500 rpm limits surface speed efficiency on smaller diameter features within the turning envelope
05

Best For

Aerospace landing gear components, structural shafts, and large hydraulic actuator bodies requiring high material removal rates Energy sector — oil and gas valve bodies, pump impellers, and turbine components in large-diameter stainless and alloy steel Automotive drivetrain and suspension components in medium-to-large diameter requiring high-volume production efficiency Contract precision machining shops competing on large turned part capacity with cycle time as the key cost differentiator
06

Frequently Asked Questions

01 How does the dual-turret configuration of the 611DT reduce cycle times?

By programming both upper and lower turrets to cut simultaneously on the same or different workpiece features, the 611DT effectively performs two machining operations in parallel. On a part that would take 8 minutes on a single-turret machine, balanced dual-turret programming can reduce the cycle to 4-5 minutes, directly improving throughput without any change in part quality.

02 Can both turrets perform live tool milling simultaneously on the 611DT?

Yes. Each turret has its own live tool drive system, allowing simultaneous driven tool operations on both turrets when the programming strategy benefits from it. This enables strategies like simultaneous front drilling on one turret and rear milling on the other during multi-channel machining cycles.

03 What CNC system controls the 611DT's dual-turret operations?

The 611DT uses the Siemens SINUMERIK 840D sl CNC with multi-channel capability. Each turret operates in its own CNC channel, allowing independent programming of upper and lower turret movements with synchronization commands used to coordinate operations where required for safety and part quality.

04 Is the 611DT suitable for shaft work as well as chucked components?

Yes. The 611DT supports tailstock and steady rest configurations for turning long shaft workpieces, extending its application range beyond chucked work to include precision shafts up to the machine's maximum turning length of 750mm. The 102mm spindle bore also supports bar stock feeding for suitable workpiece diameters.

05 How does the 611DT fit in the Willemin-Macodel machine range?

The 611DT is Willemin-Macodel's high-production large turning center, distinct from the 301S (5-axis turn-mill for small complex parts) and the 408B/408MT (mid-range multi-tasking). The 611DT targets manufacturers needing throughput on larger turned components where simultaneous dual-turret machining provides the decisive cycle time advantage.

07

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