USED DMG MORI CTX 750

The DMG MORI CTX 750 is a large-format universal CNC turning center designed for high-precision machining of long and heavy components. Positioned at the upper end of the CTX series, it is engineered for industries such as oil & gas, aerospace, heavy engineering, and energy, where large-diameter and long-length parts require both power and precision.

The machine supports a maximum workpiece diameter of approximately 700 mm and a turning length of up to 2,040 mm, making it suitable for long shafts, pipes, and complex cylindrical components. It also offers a bar capacity of up to 127 mm, enabling efficient bar-fed production for larger diameters.

A key strength of the CTX 750 is its high-torque spindle system. The main spindle can deliver up to 3,250 rpm and extremely high torque (around 1,975 Nm), making it ideal for heavy-duty roughing as well as precision finishing. An optional counter spindle allows complete 6-sided machining in a single setup, improving cutting time efficiency and reducing handling.

The machine features a Y-axis with up to ±85 mm travel (approx. 170 mm total), enabling off-center machining, milling, and drilling operations. It also supports high-performance turrets, including direct-drive options up to 6,000 rpm, allowing complex mill-turn operations within the same platform.

Built with a highly rigid structure, wide linear guideways, and direct measuring systems, the CTX 750 achieves positioning accuracy within approximately 6 microns. Thermal stability is enhanced through a comprehensive cooling system, ensuring consistent accuracy during long machining cycles.

The machine is equipped with Siemens or Fanuc controls along with DMG MORI’s CELOS platform, simplifying programming and shopfloor integration. Designed for high cutting time utilization, the CTX 750 supports automation such as pallet systems and robotic loading, making it ideal for continuous production.

DMG MORI CTX 750 SPECIFICATIONS

WHY BUY USED DMG MORI CTX 750

Buying a used DMG MORI CTX 750 is a highly strategic investment for manufacturers that require large-part machining capability without the substantial capital cost of a new machine. Machines in this category are built with heavy-duty construction, high-torque spindles, and precision guideways, allowing them to maintain performance over long operational lifespans when properly maintained.

One of the biggest advantages of purchasing used is cost efficiency. A new CTX 750, especially when equipped with Y-axis, counter spindle, and automation, represents a significant investment. A used machine provides access to the same large work envelope, high spindle power, and multi-axis capability at a fraction of the original cost, making it easier to expand production capacity.

Cutting time (spindle hours) is the most critical factor when evaluating a used CTX 750. Machines with lower cutting hours generally retain better spindle condition, turret accuracy, and guideway integrity. For example, a machine from the early 2010s with moderate cutting time may provide better long-term reliability than a newer machine that has been heavily used in continuous heavy-duty production. Given the machine’s typical use for large components, wear on spindle bearings, guideways, and tailstock systems should be carefully inspected.

Another advantage is productivity. The CTX 750 is designed for complete machining, allowing turning, milling, drilling, and secondary operations in a single setup. Even in used condition, this capability significantly reduces setup time and improves workflow efficiency, especially for long and complex parts.

Additionally, DMG MORI’s global support network and spare parts availability reduce the risks associated with purchasing older equipment. From a financial standpoint, buying used enables faster return on investment, as lower upfront costs combined with high cutting time utilization quickly translate into increased output and profitability.

HOW MUCH DOES A USED DMG MORI CTX 750 COST?

The cost of a used DMG MORI CTX 750 depends on manufacturing year, configuration (Y-axis, counter spindle, turret type), condition, and most importantly, cutting time (spindle hours). As a large-capacity turning center, it typically commands higher prices than smaller CTX models due to its size and capability.

Machines built before 2000 (or earlier-generation large CNC turning centers with similar capacity) generally range from $25,000 to $80,000. These machines are the most affordable but may include older control systems and higher wear levels. Cutting time is especially critical—machines with high spindle hours may require refurbishment, particularly for spindle and guideway systems.

Models produced between 2000 and 2010 typically range from $80,000 to $180,000. This segment often provides the best balance between price and performance, offering improved control systems, better spindle technology, and enhanced rigidity. Units with low to moderate cutting time are particularly desirable, as they can deliver reliable performance with manageable maintenance costs.

Machines from 2010 to 2025 generally range from $180,000 to $400,000 or more, depending on configuration and automation integration. Machines equipped with high-torque spindles, full Y-axis capability, counter spindle, and advanced automation packages command premium prices due to their increased flexibility and productivity.

Cutting time remains the most important pricing factor. A newer machine with excessive spindle hours—especially one used in heavy-duty applications—may be less valuable than an older unit with minimal use. Buyers should carefully evaluate spindle condition, guideway wear, maintenance history, and overall machine accuracy to determine true market value and ensure long-term operational reliability.