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Handtmann’s HBZ Trunnion series five-axis HMCs are designed for machining aluminum, steel and titanium in the automotive, die and mold, tool making, machine construction, energy technology and aerospace industries. The series includes the HBZ TR 80, 120 and 160.
The HMCs feature rotary-swivel tables with diameters measuring 800, 1,200 and 1,600 mm, respectively. Workpieces are clamped horizontally on the rotary-swivel tables, enabling loading from above and from the front. When loaded, the tables, which swivel from +30 to -120 degrees, are swiveled into the vertical position. The interference contour measures 850, 1,250 or 1,650 mm in diameter, respectively.
The HMCs use a maximum125-kW, high-power spindle and are capable of generating 390 Nm of torque at speeds as fast as 30,000 rpm. Standard accelerations are 6 m/sec.2 and travel speed is 45 m/min., which can be increased to 10 m/sec.2 and 60 m/min. with the optional dynamic package.
The rigid design enables a three-point floor mounting, which does not require a special foundation, the company says. The machine features a double drive system in the X axis with upper and lower guideways, workpiece-independent linear axes, direct measuring systems, torque drive of the A and C axes and a thermosymetric base frame. The machine’s horizontally positioned spindle enables chips and coolants to drop down directly from the workpiece instead of staying in deep pockets. Chips cut from the workpiece are immediately transported out of the machine room via scraper and/or screw-type conveyors.
The standard chain-type tool magazine is equipped with 40 slots, 60 slots optional. A rack-type tool magazine with several hundred slots is also an option. A double gripper enables chip-to-chip tool change times of 3 sec.
Video: The Impact of a Horizontal Machining Center
A small shop describes the efficiency gains it is seeing now that it has a horizontal machining center instead of solely verticals. One of the shop’s leaders talks through processing of parts then and now.