Complete Machining of Large Parts in Small Spaces
The five-axis Heckert X compact series is now complete: To complement the Heckert X50 that has been available since April 2022, Starrag launched the larger Heckert X70, X80 and X90 versions in April 2025. These supersede the popular HEC 630 X5 and HEC 800 X5 models, adding to their already familiar range of applications. For instance, the Heckert X90 can be used to machine larger workpieces. The new Heckert X70 will be on show at EMO 2025 in Hanover – on the Starrag stand in Hall 12, C93.
With pallet sizes of 24.8 x 31.5 in. (630 x 800 mm) (Heckert X70) and 31.5 x 39.4 in. (800 x 1,000 mm) (Heckert X80 and X90), the new 5-axis horizontal machining centers are suitable for the complete machining of large components, including those that may be quite heavy. This is because the loading weight of the “newbies” ranges from 2,204.6 lb. (1,000 kg) (Heckert X70) to 4,409.2 lb. (2,000 kg) in the case of the Heckert X90. As such, these models are focused on the five-axis heavy-duty machining of gearbox housings and cylinder heads, axles, valve and pump housings, planetary gear carriers and machine components, including pallets, headstocks and spindle frames.
What sets the new machining centers apart is their compact design and, with it, a smaller footprint. The Heckert X70 requires 18 per cent less installation space than its predecessor, the Heckert HEC 630 X5. The other models of the X series also offer similar space savings. However, the machine’s compact proportions do not mean the user has to compromise in terms of their workpieces. The working area and displacement circle remain unchanged, as do the permissible workpiece weight and workpiece height.
Furthermore, turning as a technology is an integral part of the machine concept and can be configured as an option. Using specially developed assemblies and software modules, both classic and complex turning operations can be performed with the unrivalled productivity of a machining center.
Unlike a turning lathe, the machine benefits from a variety of setup options. Not only can the workpieces be clamped vertically for added convenience, but they can in fact be clamped during the machining operation thanks to the pallet changer. In terms of tools, all versions of the large tool magazines can be used, and turning diameters in the working area can measure up to 55.1 in. (1,400 mm) (Heckert X90).
Starrag has upheld the typical characteristics for which the Heckert models are known. That’s to say, these are robust, powerful and fast machines that offer exceptional accuracy and reliability over many years. Like all the new compact machining centers from the Chemnitz-based company, the new Heckert X70, X80 and X90 are based on a compact, low-vibration machine bed made of grey cast iron. This basis, combined with the thermo-symmetrically designed columns, ensures very high basic mechanical accuracy, thanks in part to trimmed guides. This means that the software compensation process need only add the finishing touches.
The new Heckert X70, X80 and X90 are based on the comparable machine sizes of the four-axle Heckert H-series. Instead of the NC rotary table installed in the earlier models, the X-series models feature a robust rotary/tilt table – an in-house development that is also manufactured at the Starrag plant in Chemnitz. Not only does the tilting unit have two equally sized bearings, but also a thermally stable design. This means that the machines are capable of complete five-sided, highly dynamic machining of complex components.
Of particular importance to the developers was ensuring the compatibility of the pallets on the new Heckert X70, X80 and X90 models. The pallets are interchangeable with those of the H series. What’s more, the pallets from the older Heckert HEC 630 / 800 X5 machines can still be used on the new X models.
Another forward-thinking aspect: All machines in the five-axis compact series are fitted with the latest SINUMERIK ONE control system, with new hardware and fast sensor technology. They are also easier to automate than their predecessors. This is thanks in part to the extended 13-channel clamping hydraulics and optimized standard interfaces to pallet storage systems and robot cells.
