Five-Axis HMCs Perform Complex Prismatic Machining

Heller Machine Tools introduces its HF series of five-axis horizontal machining centers for complex prismatic parts. The 800-kg table load limit suits the machines for light and heavy workpieces. The sizes, 900 × 950 × 900 mm for the HF 5500 and 710 × 750 × 710 mm for the HF 3500, make them ideal for the general machining and automotive industries.

The X, Y and Z linear axes along with the A and B rotary axes integrated into a rotary table on a trunnion enable five-sided machining and simultaneous five-axis machining. Alternatively, they may be equipped with a lift-and-rotate pallet changer for five-sided serial production. The system works with standardized pallet automation solutions from Fastems and Schuler. The HMCs provide the possibility of multiple clampings of very large components.

The NC toolchanger is equipped with two NC axes for short idle times and consistent operation. The chain-type tool magazine capacities of the HSK63 are 54, 80 and 160; for the HSK100 they are 50, 100 and 150.

The SC63 SpeedCutting unit (18,000 rpm, 100 Nm) equipped with an HSK-A 63 spindle taper is standard. Also available are the PC63 PowerCutting unit (12,000 rpm, 201 Nm), equipped with an HSK-A 63 spindle taper, and the SC100 SpeedCutting (12,000 rpm, 201 Nm) and PC100 PowerCutting (10,000 rpm, 354 Nm) with HSK-A 100 spindle taper. The HF3500’s 8,000-Nm and the HF5500’s 10,000-Nm feed forces handle difficult materials without interruption or strain.

An optional speed package enables acceleration of up to 10 m/s² and speeds of up to 90 m per min., reducing chip-to-chip times by approximately 10 percent, according to the company.  

The machines are equipped with Siemens controls, a double-pivoting main operator panel with a 24" touch screen and an easy-to-operate user interface.