New 5-axis horizontal machining centre from Heller

This will be alongside the smaller HF 3500, which was introduced last year. With a 900 x 950 x 900mm work envelope and a maximum pallet load of 750kg, the larger machine offers approximately 200mm extra travel in X, Y and Z plus 200kg additional load capacity.

HF series machines are intended for highly productive, medium and large volume production in the automotive industry and its supply chain, as well as in the machine building industry. Optionally, productivity can be boosted with a ‘Speed-Dynamics Package’, which shortens chip-to-chip times by 10%, and a high-speed lift-and-swivel tool changer that reduces idle times further.

The machines have direct-drive rotary A and B axes integrated into a swivelling rotary table that has a low moment of inertia, allowing highly dynamic movements. The counter bearing supporting the AB axis is a unique selling point, according to the manufacturer, as in combination with the YRT bearings it helps to achieve extreme rigidity under high loads.

Large component sizes can be accommodated due to the generous interference contour, while still maintaining a +30 to -120° table swivel. With certain restrictions, the swivel range can be increased to 225°. Whereas conventional 5-axis machining centres are generally configured for single-part clamping, Heller's HF series allows multiple part workholding or one very large component such as a transmission case to be secured.

Flexibility of use was another priority during the development phase, which is why the HF series is available with a choice of four different in-house manufactured spindles, with either an HSK-A63 or HSK-A100 taper, offering speeds up to 18,000rpm and torques to 452Nm. Versions of the machine are available for table loading or with a twin pallet changer.

The free chip fall of the horizontal-spindle design is augmented by steep side walls and a centrally positioned chip conveyor, covers being of stainless steel. The new Heller Operation Interface has a 24-inch touchscreen and offers quick access technology in the control, while an optional camera in the work area supports setting and monitoring. Connectivity to Heller automation systems and flexible integration into existing production lines are possible.

Increasing productivity through consistent Industry 4.0 practices, which the company calls HELLER4Industry, will be another theme of the stand at EMO. Core aspects are supplementary machine functions, on-demand services and enhanced maintenance. The importance of ease of operation, customised workpiece manufacturing and enhanced evaluation of existing data will be stressed.

Heller www.heller.biz