DMG Mori DMU 340 Gantry

The DMG Mori DMU 340 Gantry is the mid-range gantry 5-axis platform, designed for manufacturers machining very large workpieces that exceed the DMU 200 Gantry capacity. With 6,000 x 2,800 x 1,500 mm (236.2 x 110.2 x 59.1 in) of travel, this machine handles workpieces up to 7,000 mm (275.6 in) long, 3,140 mm (123.6 in) wide, 1,540 mm (60.6 in) tall, and weighing up to 30,000 kg (66,139 lb).

The powerMASTER motor spindle delivers up to 1,000 Nm (737 ft-lb) of torque at 77 kW (103 hp), while the torqueMASTER gear spindle pushes to 1,800 Nm (1,328 ft-lb) for the most demanding roughing operations in titanium, Inconel, and hardened steel. Feed speed reaches 40 m/min (1,575 ipm) with feed force up to 50,000 N (11,240 lbf) and acceleration up to 5 m/s2 (16.4 ft/s2).

Tool magazine capacity extends to 243 tools, keeping the machine running through complex multi-operation parts without manual tool loading. The band filter coolant system holds 2,500 liters to support the high-volume chip generation typical of large-part roughing operations.

Positioning accuracy reaches down to 10 micrometers standard, with the accuracy pack option tightening to 8 micrometers. Both SIEMENS SINUMERIK ONE and HEIDENHAIN TNC7 controls are available with CELOS X integration.

The gantry construction provides consistent rigidity and accuracy across the full 6-meter X-axis travel. Unlike rotary-table machines that lose rigidity as part weight increases, the fixed-table gantry design maintains cutting performance regardless of workpiece mass. The thermosymmetric gantry structure minimizes thermal drift during extended production runs.

For manufacturers in aerospace, energy, heavy equipment, and defense that regularly machine parts in the 3-7 meter range and 10-30 ton weight class, the DMU 340 Gantry fills the gap between the compact DMU 200 and the massive DMU 600 Gantry. Specs sourced from DMG Mori published data.