Starrag Heckert H75

$700,000 - $1,100,000 Updated 2026-03-16

Key Specifications

X Travel

1,000 mm (39.4 in)

Y Travel

900 mm (35.4 in)

Z Travel

1,000 mm (39.4 in)

Max Spindle

12,000 RPM

Spindle Taper

HSK-A100

Tool Capacity

60 standard (120/240 optional)

Overview

The Starrag Heckert H75 is a large-format 4-axis horizontal machining center built around a 750 mm pallet, targeting heavy aerospace, power generation, and large-component precision machining. It sits above the H65 in Heckert's HMC lineup and brings Heckert's thermally symmetric design philosophy to workpieces up to 1,500 kg (3,307 lb).

Axis travels reach 1,000 mm (39.4 in) in X, 900 mm (35.4 in) in Y, and 1,000 mm (39.4 in) in Z, providing substantial working volume for large prismatic parts such as aerospace housings, turbine casings, gearboxes, and structural frames. The spindle delivers up to 12,000 RPM at 50 kW (67 HP) continuous power through an HSK-A100 interface, with high-torque configurations available for sustained heavy cutting in titanium, Inconel, and large steel billets. Rapid traverse reaches 50 m/min (1,969 IPM) on all linear axes.

The 750 x 750 mm pallet accepts parts up to 1,000 mm in diameter and 1,200 mm tall. The B-axis provides precise 4-axis indexing at 0.001-degree resolution, enabling full multi-face machining of complex structures in a single setup. Tool magazine capacity ranges from 60 to 240 tools depending on configuration.

Positioning accuracy of ±0.006 mm (±0.00024 in) and repeatability of ±0.003 mm (±0.00012 in) are exceptional for a machine in this work-envelope class. The Siemens SINUMERIK 840D sl control is standard. The H75 operates in aerospace facilities alongside machines such as the Makino a81nx and DMG Mori NHX 8000, where its European thermal-management design philosophy and HSK-A100 rigidity differentiate it. New machines price between $700,000 and $1,100,000.

Full Specifications

Parameter	Value
X-Axis Travel	1,000 mm (39.4 in)
Y-Axis Travel	900 mm (35.4 in)
Z-Axis Travel	1,000 mm (39.4 in)
Pallet Size	750 x 750 mm (29.5 x 29.5 in)
Max Spindle Speed	12,000 RPM
Spindle Taper	HSK-A100
Spindle Motor Power	50 kW (67 HP) continuous
Max Workpiece Weight	1,500 kg (3,307 lb)
Max Workpiece Diameter	1,000 mm (39.4 in)
Max Workpiece Height	1,200 mm (47.2 in)
Tool Capacity	60 standard (120/240 optional)
Rapid Traverse Rate	50 m/min (1,969 IPM)
B Axis Indexing	0.001° resolution
Positioning Accuracy	±0.006 mm (±0.00024 in)
Repeatability	±0.003 mm (±0.00012 in)
CNC Control	Siemens SINUMERIK 840D sl
Pallet Changer	2-pallet standard, FMS-ready

Specifications sourced from starrag.com — verified 2026-03-28

Strengths & Limitations

Strengths

750 mm pallet and 1,500 kg workpiece capacity handles large aerospace housings, turbine casings, and structural frames that exceed smaller HMC capabilities
HSK-A100 spindle interface delivers exceptional rigidity for heavy roughing in titanium, Inconel, and large steel billets at sustained 50 kW power
Thermally symmetric Heckert column construction maintains ±0.006 mm positioning accuracy across long production shifts without geometric drift
B-axis 4-axis indexing at 0.001-degree resolution enables complete multi-face machining of complex parts in a single setup, reducing fixturing cost
FMS integration-ready for pallet pool systems from Fastems, Liebherr, and other third-party automation suppliers
240-tool magazine option accommodates complex aerospace part programs requiring large tool assortments without operator intervention

Limitations

Starting price above $700,000 makes the H75 a significant capital investment, justified primarily for aerospace or high-value power generation work
50 m/min rapid traverse is lower than smaller HMCs in the Heckert range, reflecting the mass and inertia of the larger axis drives
HSK-A100 tooling ecosystem carries higher tool costs than HSK-A63, and setup times are longer for complex part programs
Large machine footprint requires substantial floor space and adequate foundation preparation, adding to total installation cost
Siemens 840D sl has a steeper operator learning curve compared to Fanuc in North American shops

Best For

Aerospace prime and Tier 1 suppliers machining large structural components, housings, and frames where size, accuracy, and single-setup completion are all critical Power generation manufacturers producing turbine casings, compressor housings, and large gearbox bodies requiring heavy material removal and tight tolerances Defense manufacturers machining large precision components where traceable accuracy documentation and long-term repeatability are contractually required Job shops specializing in oversized prismatic work who need a large HMC with European build quality and proven long-term accuracy retention FMS cell operators building flexible cells for large-part families requiring automated pallet handling and lights-out capability

Frequently Asked Questions

01 What does a new Starrag Heckert H75 cost?

New H75 machines typically price between $700,000 and $1,100,000 depending on spindle torque configuration, tool magazine size (60/120/240 tools), and automation options. Full FMS pallet pool systems can push the total project budget past $2 million. Used H75 units from 2014-2021 appear in the $250,000-$500,000 range.

02 How does the H75 differ from the H65?

The H75 steps up from the H65's 630 mm pallet to a 750 mm pallet and increases maximum workpiece weight from approximately 1,000 kg to 1,500 kg. The H75 also uses an HSK-A100 spindle taper rather than HSK-A63, providing greater rigidity for heavy cuts on large parts. The H75 is the right choice when workpiece size or weight exceeds what the H65 can handle.

03 Can the H75 machine titanium aerospace components?

Yes. The H75's 50 kW spindle motor and rigid column construction are well-suited to titanium and Inconel machining. High-torque spindle configurations are available for sustained heavy roughing. Starrag's experience with titanium aerospace manufacturing — developed across the SRM, NX, and SIP lines — informs the H75's design, making it a capable platform for large titanium structural parts.

04 What pallet automation options are available for the H75?

The H75 ships with a 2-pallet automatic pallet changer as standard. For higher automation, it integrates with Starrag's own FMS pallet pool systems as well as third-party systems from Fastems, Liebherr, and Erowa. Linear pallet pools of 6 to 40+ pallets are practical at the 750 mm pallet size, enabling extended unmanned operation for repeating part families.

05 What is the H75's positioning accuracy compared to Japanese large HMCs?

The H75 achieves ±0.006 mm positioning accuracy and ±0.003 mm repeatability. Comparable Japanese machines such as the Makino a81nx and Mazak HCN-8800 deliver similar accuracy figures on paper, but the Heckert design's thermally symmetric column construction is specifically engineered to maintain these figures across full multi-shift production without thermal correction cycles, which is a meaningful advantage in aerospace environments.