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New HMC for 5-Axis Production

HELLER has introduced the new model HF 5500 5-axis horizontal machining center (HMC) equipped with a pallet changer and offering a work envelope of 900 x 950 x 900 mm and a maximum pallet load of 750 kg.

The 5th axis is provided by the workpiece for dynamic 5-sided and simultaneous 5-axis machining, and HELLER's typical horizontal spindle provides quick tool changes and short idle times. Three linear axes in X, Y and Z, are equipped with absolute measuring systems and two direct driven dynamic rotary axes in A and B are integrated into a swivel rotary table.

The high speed of the A and B rotary axes is achieved through minimized mass moment of inertia and the use of direct drives. Optionally, the powerful dynamics can be increased further with the Speed-Dynamics Package. According to HELLER, it provides 10% shorter chip-to-chip times. For an additional reduction in idle times, the HF series provides a high-speed NC tool changer with lift-and-swivel principle.

"HELLER has equipped the new series with a counter bearing as a unique selling point," said a company spokesperson. The use of the counter bearing in combination with a YRT bearing results in high rigidity for handling high loads.

The machine is either available in table design or equipped with pallet changer for added flexibility, and provides a wide choice of spindles to suit different applications.

While the standard version is equipped with the powerful SC63 SpeedCutting motor spindle with HSK-A63 (18,000 RPM, 100 Nm), making it suitable for the machining of light metals, the optional PC63 PowerCutting spindle unit (12,000 RPM, 201 Nm) provides the necessary torque for high-performance cutting of cast iron and steel.

HELLER also offers motor spindles with HSK-A100. The SC 100 spindle unit (12,000 RPM, 201 Nm) provides increased stability of tools and high speeds for universal application, whereas the PC 100 spindle unit (10,000 RPM, 354 Nm) offers high torque for use with large and heavy tools.

The HF series provides large workpiece interference contours. "Unlike conventional 5-axis machining centers, HELLER's concept is not only based on single-part clamping, but provides the possibility of multiple clampings or the clamping of very large components such as transmission cases using window-type fixtures," said the spokesperson.

To provide sufficient space in the work area, the workpiece interference contour of model HF 5500 was increased by 800 mm in height and 900 mm in diameter compared to model HF 3500. "Despite the large interference contour there are hardly any limitations as far as the degrees of freedom are concerned," said the spokesperson. The machine enables swivel movements of the rotary table through 150° (30° to -120°) and with certain restrictions even through 225°.

"The HELLER HF machining centers leave nothing to be desired when it comes to the disposal of short- or long-chipping materials. This is guaranteed through free chip fall during horizontal machining, steep sidewalls and stainless steel slat coverings as well as the centrally arranged open chip conveyor," said the spokesperson.

With the HF series, HELLER is presenting its new HELLER Operation Interface, the new operating panel with 24" screen technology and touch controls, quick access technology in the control and XTENDS optional expansion applications to support the user. The optional work area camera optimally supports setting and monitoring functions during the CNC process.

The HF series offers the ability to connect to all current automation systems and allows flexible integration into existing production systems.

The new machining centers enable continued use of existing tools from other HELLER machines and the use of manual clamping fixtures. Adaptation of hydraulically operated clamping fixtures is also possible.

For more information contact:

HELLER Machine Tools

1225 Equity Drive

Troy, MI 48084


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