WIAP DM4-C – Heavy-Duty CNC Lathe (1998/2024) | Ø1600 mm | VDSF Technology

The WIAP DM4-C is a high-performance, heavy-duty Swiss CNC lathe engineered for large-scale industrial applications. Utilizing the proprietary VDSF (Vibration-Damping-Steel-Filling) technology, this machine provides superior rigidity and resonance elimination compared to traditional cast-iron beds. It is purpose-built for the energy, oil & gas, and heavy machinery sectors, offering a massive 1600 mm swing and high-torque machining capabilities.
Technical Specifications

• Control Unit: Siemens Sinumerik (810/840 compatible)
• Drive System: Siemens SIMODRIVE 611-A (Modules 25/50A & 12.5/25A)
• Swing Over Bed: approx. 1600mm
• Distance Between Centers: 2000 mm
• Spindle Bore: 202 mm
• Main Motor Power: 63 kW
• Bed Construction: Welded steel with VDSF vibration-damping filling
• Workpiece Weight: Up to 400 kg (can be extended with steadies/tailstock)

Condition & Maintenance
Built in 1998, this unit has been meticulously maintained, with service records spanning from 2002 up to 2024. The inclusion of original electrical diagrams and Siemens Simodrive current setting tables ensures high technical transparency. The machine remains accurate and capable of holding tight tolerances even under heavy load, reflecting the renowned Swiss build quality.
Expert Q&A – Insight for Buyers
1. Why is the VDSF technology critical for heavy machining? VDSF technology replaces standard casting with a composite-filled steel structure. This dramatically reduces thermal expansion and absorbs micro-vibrations. For the operator, this means higher surface finish quality and significantly less wear on carbide inserts during heavy interrupted cuts.
2. How difficult is it to source spare parts for the Siemens Simodrive 611-A? The Simodrive 611-A is one of the most reliable and well-documented drive systems worldwide. Parts are readily available from global suppliers. Since we provide the specific current calibration values for this unit, any module replacement is a "plug-and-play" procedure.
3. Is the WIAP DM4-C suitable for aerospace or turbine components? Yes. Due to the 1600 mm swing and the 63 kW spindle power, it is an excellent choice for machining large turbine rings, aircraft engine housings, and heavy shafts where high torque at low RPM is required.

FAQ

• Q: What is the maximum spindle speed and power of the WIAP DM4-C?
  • A: The WIAP DM4-C features a powerful 63 kW main drive, optimized for high-torque heavy machining with a 202 mm spindle bore.
• Q:Which control system is installed on this WIAP DM4-C lathe?
  • A: This machine is equipped with a Siemens Sinumerik CNC system and Siemens SIMODRIVE 611-A power modules.
• Q: What makes the WIAP DM4-C different from standard heavy lathes?
  • A: It utilizes Swiss-engineered VDSF technology (Vibration-Damping-Steel-Filling) in the bed construction for extreme rigidity and precision.