Comau NMS 740E
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Table Size
Overview
The Comau NMS 740E is a vertical machining center engineered for precision part production in automotive, general engineering, and light industrial applications. Positioned within Comau's NMS series of vertical machining centers, the 740E variant targets the medium-range table size segment — 740 mm in the Y-axis — where versatility across a wide range of component types is the primary design objective. The machine reflects Comau's Italian engineering heritage combined with the company's industrial automation expertise, resulting in a VMC that is designed from the outset for integration into automated manufacturing cells.
The structural architecture of the NMS 740E uses a fixed-column, moving-table design with a rigid cast iron or Meehanite construction that provides the dimensional stability required for consistent part accuracy across extended production runs. The three linear axes (X, Y, Z) feature high-quality ballscrews with preloaded nuts and precision linear guideways, ensuring low friction, high repeatability, and long-term positioning accuracy. The spindle is mounted on the column and moves vertically (Z), while the table traverses in X and Y, a configuration that minimizes the moving mass and simplifies automation interfacing.
Spindle performance on the NMS 740E is configured for versatility — typically offering speeds up to 10,000 to 12,000 rpm with sufficient torque for machining aluminum, cast iron, and mild steel. The spindle motor and drive combination enables both the high-speed performance needed for aluminum finishing and the torque characteristics required for steel roughing operations. Tool retention is via BT40 or HSK-A63 tooling interface, and the automatic tool changer accommodates standard toolholders up to 300 mm in length and 150 mm in diameter.
Comau equips the NMS 740E with modern CNC control — Siemens SINUMERIK or Fanuc CNC depending on customer preference and regional market — with a full suite of standard cycles, tool management, and shop floor connectivity features. The control's programming environment supports both conversational and G-code programming, and the machine's electronic package is designed for DNC integration and remote monitoring. Optional probing systems for workpiece setup and tool measurement are available, reducing setup time and operator dependency.
The NMS 740E's value proposition centers on combining proven Comau build quality with the automation-readiness that automotive and tier-1 suppliers expect. While the vertical machining center market is competitive, Comau's ability to supply the NMS 740E as part of a broader turnkey cell — with robotics, conveyors, and production management software — differentiates it for customers who value a single-supplier solution for their manufacturing line. For shops that need a reliable, Italian-built VMC with clear expansion path to full automation, the NMS 740E is a strong candidate.
Full Specifications
| Parameter | Value |
|---|---|
| Table Size | 900 x 740 mm |
| X-Axis Travel | 900 mm |
| Y-Axis Travel | 740 mm |
| Z-Axis Travel | 600 mm |
| Max Spindle Speed | 10,000 rpm (standard); 12,000 rpm (optional) |
| Spindle Motor Power | 18.5 kW (S1) |
| Spindle Torque | 190 Nm |
| Spindle Taper | BT40 or HSK-A63 |
| Tool Magazine Capacity | 24 tools (standard); 32 or 40 (optional) |
| Max Table Load | 800 kg |
| CNC Control | Siemens SINUMERIK 828D or Fanuc 0i-MF |
| Machine Weight | Approx. 8,500 kg |
Strengths & Limitations
Strengths
- Medium-size table accommodates a broad range of prismatic components
- Designed for automation integration with Comau robotics from the start
- Choice of Siemens or Fanuc CNC suits different regional preferences and skill bases
- Italian build quality with rigid cast iron construction for long-term accuracy
- BT40 or HSK-A63 spindle options allow tooling inventory alignment with existing machines
Limitations
- Comau's VMC dealer and service network is narrower than market leaders Mazak, Haas, or DMG Mori
- Tool magazine capacity on the standard configuration is limited for complex multi-operation parts
- Less name recognition in general job shop market versus automotive Tier-1 context
Best For
Frequently Asked Questions
01
The 'E' suffix in Comau's NMS series typically denotes an enhanced or evolved variant of the base model, often incorporating improvements to spindle performance, control system, or structural rigidity compared to the standard version. Specific feature differences should be confirmed with Comau's sales team, as designations can vary by market.
02
Yes. The NMS 740E can accommodate a 4th-axis CNC rotary table on the standard table, enabling indexing or continuous rotation for multi-sided part machining. Comau and compatible third-party rotary tables can be specified at time of order or retrofitted post-delivery.
03
The NMS 740E can perform die and mold work on smaller components within its work envelope. However, for demanding hard milling applications in hardened steel above 50 HRC, a higher-speed, higher-rigidity machine specifically designed for that application may be more appropriate. The NMS 740E is best suited for general prismatic and automotive-type components.
04
The NMS 740E is compatible with Comau's articulated robot portfolio — including the RACER series for lighter payloads and the NJ series for heavier payloads — as well as collaborative robots (cobots) for flexible small-batch loading. Comau designs the machine's front-opening or side-opening configurations to facilitate robotic access.
05
In raw specification terms, the NMS 740E is comparable to mid-size VMCs from Haas and Mazak. Haas offers lower acquisition cost and a very strong North American service network. Mazak provides broader dealer coverage globally. Comau's advantage lies in its automation integration capability and turnkey cell supply, making it a stronger fit for customers who want a single vendor relationship for both machining and automation.
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