DMG Mori DMU 125 P duoBLOCK
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The DMG Mori DMU 125 P duoBLOCK steps up from the DMU 100 P with a larger work envelope and heavier table load, targeting shops that machine medium-to-large aerospace structures, mold bases, and power generation components. Travel of 1,250 x 1,250 x 1,000 mm (49.2 x 49.2 x 39.4 in) with a square X-Y footprint gives programmers more flexibility for indexing large parts without fixture gymnastics.
Table load capacity jumps to 2,800 kg (6,173 lb) in standard configuration, or 2,600 kg (5,732 lb) in the FD mill-turn variant. That is serious payload capability for a 5-axis machine. Shops can clamp large titanium forgings, cast iron pump housings, or multi-cavity mold blocks and machine all five sides in a single setup without worrying about overloading the rotary table.
The duoBLOCK construction carries over from the rest of the lineup: thermosymmetric casting design, three guide ways on the Y-axis, and water-cooled feed drives on all linear axes. This gives the DMU 125 P the rigidity to sustain heavy cuts in hard materials without sacrificing surface finish quality needed for finishing passes. The B-axis swivels through 210 degrees (-30 to +180), and the C-axis provides 360-degree continuous rotation with direct-drive motors.
Spindle options mirror the duoBLOCK family. The powerMASTER 1000 motor spindle delivers 77 kW (103 hp) and 1,000 Nm (737 ft-lb) at up to 12,000 RPM through HSK-A100. The 5X torqueMASTER gear spindle pushes to 1,300 Nm (1,328 ft-lb) at 52 kW (70 hp) for maximum material removal. The FD variant adds direct-drive table rotation up to 500 RPM for combined mill-turn operations.
Maximum workpiece diameter reaches 1,250 mm (49.2 in) with a height of 1,600 mm (63 in), accommodating tall aerospace structural components and deep mold cavities. The tool magazine scales to 453 pockets with 5.6-second tool changes. Both SIEMENS SINUMERIK ONE and HEIDENHAIN TNC7 controls are available with CELOS X integration.
For shops already running the DMU 100 P that find themselves constrained on X-travel or table load, the 125 P provides 25% more X-travel and 27% more load capacity. The additional rigidity from the larger castings makes this the pick for sustained heavy roughing cycles on large workpieces. Specs sourced from DMG Mori published data.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 1,250 mm (49.2 in) |
| Y-Axis Travel | 1,250 mm (49.2 in) |
| Z-Axis Travel | 1,000 mm (39.4 in) |
| B Axis Swivel | -30 to +180 degrees (210 total) |
| C Axis Rotation | 360 degrees continuous |
| Max Spindle Speed | 12,000 RPM (15,000 / 20,000 RPM optional) |
| Spindle Taper | HSK-A100 |
| Spindle Motor Power | 77 kW / 103 hp (powerMASTER 1000) |
| Spindle Torque | 1,000 Nm / 737 ft-lb (powerMASTER 1000) |
| Torquemaster Torque | 1,300 Nm / 1,328 ft-lb (5X torqueMASTER) |
| Torquemaster Power | 52 kW / 70 hp |
| Directdrive Table Speed | Up to 500 RPM (FD variant) |
| Tool Capacity | 60 tools standard (up to 453) |
| Tool Change Time | 5.6 seconds chip-to-chip |
| Max Workpiece Diameter | 1,250 mm (49.2 in) |
| Max Workpiece Height | 1,600 mm (63 in) |
| Max Table Load | 2,800 kg (6,173 lb) |
| Max Table Load Fd | 2,600 kg (5,732 lb) |
| Rapid Traverse Rate | 60 m/min (2,362 ipm) |
| CNC Control | SIEMENS SINUMERIK ONE / HEIDENHAIN TNC7 |
| 1250 Mm | 49.2 in. |
| 1000 Mm | 39.4 in. |
| 1600 Mm | 63 in. |
| 2800 Kg | 6172.9 lbs. |
| Customer Benefits | User Interface |
| 2600 Kg | 5732 lbs. |
Specifications sourced from us.dmgmori.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Square 1,250 x 1,250 mm X-Y travel provides generous work envelope for medium-to-large 5-axis components without fixture compromises
- 2,800 kg table load capacity handles heavy titanium forgings and large mold bases that exceed the DMU 100 P limits
- DuoBLOCK construction with thermosymmetric castings delivers exceptional rigidity and thermal stability for sustained roughing
- FD mill-turn variant maintains 2,600 kg table load at up to 500 RPM, enabling heavy turning operations on large parts
- PowerMASTER spindle at 103 hp and 1,000 Nm covers the full spectrum from heavy roughing to precision finishing
- 453-tool magazine capacity enables complex multi-operation parts and high-mix production without operator intervention
- Water-cooled feed drives on all axes maintain geometric accuracy through multi-hour roughing cycles
Limitations
- Price starting above $800K makes this a significant capital investment requiring strong utilization to justify
- Larger footprint than the DMU 100 P requires more floor space and potentially foundation reinforcement
- HSK-A100 tooling investment adds substantially to the total cost of ownership versus HSK-A63 platforms
- Machine weight makes relocation difficult and expensive once installed
- Overkill for shops primarily machining smaller parts that fit within the DMU 100 P or DMC 80 U envelope
Best For
Frequently Asked Questions
01
New DMU 125 P duoBLOCK machines typically run $800,000 to $1,250,000. Base configuration with powerMASTER spindle and standard tool magazine sits near $800K. Adding FD mill-turn, torqueMASTER, 453-tool magazine, and pallet automation pushes well past $1M.
02
Choose the 125 P when your parts regularly exceed 900 mm in X-axis travel, when fixtures plus workpieces exceed 2,000 kg, or when you need extra rigidity from larger castings for sustained heavy roughing.
03
DMG Mori specifies positioning accuracy per ISO 230-2. Standard accuracy meets typical 5-axis requirements for aerospace and mold work. The optional accuracy package tightens tolerances further.
04
Yes. The duoBLOCK construction with three guide ways on the Y-axis and thermosymmetric casting design provides the mass and damping to absorb the shock of interrupted cuts in cast iron and forged titanium.
05
DMG Mori offers the PH Cell pallet handling system in 300 and 2000 variants, linear pallet pool systems, and robotic loading. The 453-tool magazine combined with multi-pallet automation enables extended unmanned production.
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