DMG Mori HSC 55 linear
Key Specifications
X Travel
Y Travel
Z Travel
Max Spindle
Spindle Taper
Tool Capacity
Overview
The DMG Mori HSC 55 linear scales up the high-speed concept from the HSC 20 to a more versatile work envelope of 450 x 650 x 460 mm (17.7 x 25.6 x 18.1 in). This machine bridges the gap between micro-machining and mainstream 5-axis work, targeting mold shops, die makers, and aerospace manufacturers who need exceptional surface finish and dynamic accuracy on mid-size parts.
Travel of 650 mm on the Y-axis is notably generous for a high-speed machine, accommodating larger mold inserts and electrode work. The table handles workpieces up to 500 mm (19.7 in) in diameter and 350 mm (13.8 in) tall, with a 200 kg (441 lb) load capacity.
The spindle options start at 28,000 RPM with HSK-A63 taper in the basic version, with a 40,000 RPM shaft-cooled option using HSK-E50 taper for higher-speed applications. The 2G acceleration from linear motor drives keeps repositioning fast, and rapid traverse rates hit 80 m/min — significantly faster than conventional ball-screw machines.
The tool magazine holds 30 tools standard with expansion to 60 or 120 positions. The control is Heidenhain TNC7, which is the preferred platform for high-speed mold and die work in Europe and increasingly in North America. The integrated swivel/rotary table provides 5-axis simultaneous contouring capability.
The HSC 55 linear competes with the Roders RXP 501, Makino V33i, and Hermle C 250. It offers the combination of linear motor dynamics and DMG Mori platform reliability that makes it attractive for production mold shops running high-volume electrode and hard-milling work. Specs sourced from DMG Mori published data.
Full Specifications
| Parameter | Value |
|---|---|
| X-Axis Travel | 450 mm (17.7 in) |
| Y-Axis Travel | 650 mm (25.6 in) |
| Z-Axis Travel | 460 mm (18.1 in) |
| Max Spindle Speed | 28,000 RPM (40,000 RPM optional) |
| Spindle Taper | HSK-A63 (HSK-E50 optional) |
| Max Workpiece Diameter | 500 mm (19.7 in) |
| Max Workpiece Height | 350 mm (13.8 in) |
| Table Load Capacity | 200 kg (441 lb) |
| Acceleration | 2G on linear axes |
| Rapid Traverse Rate | 80 m/min (3,150 ipm) |
| Drive Type | Linear motor drives (all linear axes) |
| Tool Capacity | 30 standard (expandable to 60/120) |
| CNC Control | Heidenhain TNC7 |
| 450 Mm | 17.7 in. |
| 650 Mm | 25.6 in. |
| 460 Mm | 18.1 in. |
| 500 Mm | 19.7 in. |
| 350 Mm | 13.8 in. |
| 200 Kg | 440.9 lbs. |
Specifications sourced from us.dmgmori.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Linear motor drives deliver 2G acceleration and 80 m/min rapids for dramatically reduced non-cutting time
- 28,000-40,000 RPM spindle options provide the surface speeds needed for mirror-finish mold work
- 650 mm Y-axis travel is generous for a high-speed machine, accommodating larger mold inserts
- HSK-A63 standard taper uses mainstream tooling rather than the expensive micro-tooling of the HSC 20
- Heidenhain TNC7 control is the industry standard for high-speed mold and die programming
- Tool magazine expandable to 120 positions supports diverse mold work without intervention
- Linear motors eliminate ball screw wear for consistent accuracy over the machine lifetime
Limitations
- 450 mm X-axis travel limits part width; larger mold work may require a bigger machine
- 200 kg table load is moderate; heavy mold bases will not fit on the 5-axis table
- Starting at $400K, this is premium pricing for the work envelope — justified only by high-speed requirements
- Linear motor drives consume more electrical power than equivalent ball screw systems
- Tooling costs are higher when running HSK-E50 at 40,000 RPM due to specialized holders and balancing
Best For
Frequently Asked Questions
01
New HSC 55 linear machines price between $400,000 and $600,000 depending on spindle speed, tool magazine size, and automation options. The 40K RPM spindle option adds roughly $40,000-$60,000 over the standard 28K RPM version.
02
The HSC 20 is a micro-machining specialist with 42K-60K RPM spindles and a tiny 200x220x280 mm envelope. The HSC 55 offers a much larger work envelope (450x650x460 mm) with 28K-40K RPM spindles. The HSC 55 targets mainstream mold and die work; the HSC 20 targets dental, watch, and micro-component applications.
03
In high-speed mold finishing, the machine spends a large portion of cycle time repositioning between cuts during fine-stepover passes. Linear motors with 2G acceleration and 80 m/min rapids can reduce these cycle times by 30-50 percent compared to ball-screw machines. The zero-backlash positioning also improves surface blend quality between passes.
04
With appropriate tooling and HSC programming strategies, the HSC 55 linear achieves surface finishes below Ra 0.2 µm on hardened steel and below Ra 0.1 µm on graphite and aluminum. The linear motor dynamics and high-speed spindle provide the following accuracy needed for these results.
05
The HSC 55 linear is primarily offered with Heidenhain TNC7, which is the industry-standard control for high-speed mold and die applications. Heidenhain advanced surface quality functions and look-ahead algorithms are specifically designed for HSC milling strategies.
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