Heckert HEC 500D

The Heckert HEC 500D is a horizontal machining center built around a 500 mm pallet with a dual-pallet design optimized for high-throughput production of mid-size prismatic components. The 'D' suffix designates the dual-pallet integrated pallet changer configuration, which allows one pallet to be machined while the operator loads or unloads the second — effectively reducing non-cutting time to near zero in high-volume production environments. Heckert, a brand within the Starrag Group based in Chemnitz, Germany, has over a century of horizontal machining manufacturing experience, and the HEC 500D reflects that heritage in its rigidity, thermal stability, and long-term accuracy retention.

The HEC 500D uses a moving-column design with the workpiece held on a rotating pallet table for four-sided prismatic machining in a single setup. The 500 mm x 500 mm pallet handles workpieces up to approximately 630 kg, covering the mid-size automotive and general engineering range: engine blocks, transmission housings, axle housings, hydraulic manifolds, and structural aerospace brackets. The spindle — available in 12,000 RPM standard and 16,000 RPM high-speed variants — provides torque for steel and cast iron as well as the speed for aluminum components.

As part of the Starrag Group, Heckert engineers the HEC 500D to aerospace supplier quality standards, even though the machine's primary market is automotive. The ballscrews, linear guideways, and spindle bearings are manufactured and assembled to tolerances tighter than most general-purpose horizontal machining centers in this class. The result is a machine with positional accuracy in the sub-5-micron range and long-term repeatability that supports statistical process control (SPC) requirements in automotive and aerospace production lines.

The dual-pallet design with integrated shuttle makes the HEC 500D particularly attractive for production operations where spindle utilization is a key performance metric. By eliminating idle time during workpiece loading, the HEC 500D can achieve spindle utilization rates above 80% in dedicated production cells — a figure that significantly improves cost-per-part calculations compared to single-pallet machines. The machine integrates with Heckert's pallet pool systems for fully automated, lights-out production with multiple pallet stations.

The HEC 500D competes in the 500 mm pallet HMC segment with the Mazak HCN-5000, DMG Mori NHX 5000, Okuma MA-500H, and Toyoda FH 500. Heckert differentiates through German manufacturing quality, Starrag Group application engineering expertise, and particularly strong positioning in the European automotive supply chain. For buyers sourcing in North America, the smaller Heckert installed base relative to Japanese competitors is a consideration, though the Starrag Group maintains service representation in key manufacturing regions.