THE NEW DHF 8000ST – Ro-Mega Trade

The new DHF 8000ST

Machine tool maker, Doosan Machine Tools, has introduced the DHF 8000ST (Doosan Horizontal Five Axis 8000 Single Pallet Turning), a single table version of the DHF 8000 five-axis horizontal machining center. This new model incorporates a turning function and was designed without a pallet changer to offer a smaller footprint.

Our Panel of Experts

Customers from two industry segments were influential in the development of the DHF 8000ST. The first was heavy equipment manufacturers (earthmovers, etc.) who machine large diameter gearboxes that require turning operations. The second group was companies, such as those found in the aerospace and the oil field industries, that also machine large diameter components. With their input, and using the DHF 8000 as a base, Doosan Horizontal Five Axis 8000 Single Pallet Turning,  DHF 8000ST started to be projected.

One Setup Does It All

The A-axis nodding head spindle and direct-drive B-axis rotary table allow the DHF 8000ST to handle a complete range of machining and turning processes from roughing to finishing in a single setup. This ability to attack parts from all sides also provides increased parts accuracy. In addition, the configuration makes quick work of multi-face workpieces and the 5-axis simultaneous machining of complex shapes.

More Speed

Like the DHF 8000, the A-axis head spindle has a stroke of +60 to -100 degrees (up/down) with clamping torque of over 3,600 ft-lb. The DHF 8000ST comes with a 47 horsepower HSK100-T spindle taper with a 6,000 r/min gear head spindle, and optional 8,000 or 15,000 r/min high-speed spindles are also available.

More Size

This scaled-up HMC can easily support workpieces weighing up to two tons, allowing them to be machined with the same precision as their much smaller counterparts. A 1,000mm (39.4”) diameter pallet offers a bigger work envelope from the previous model, and its large working area can readily hold parts up to ø 1,600mm (62.9”) diameter x 1,400mm (55.1”) in height.

More Toughness

The DHF 8000ST is constructed with cross roller linear guideways for extra rigidity. The Y- and Z-axis are fitted with dual ballscrews to ensure greater structural stability and accuracy, while the column is designed with high static and dynamic rigidity to provide optimum machining performance. Linear scales on each axis maintain superior positioning accuracy.

More Features

A thermal compensation system, consisting of sensors strategically placed within critical areas of the machine, monitors and compensates if thermal growth is detected. Cooling systems for the spindle and ballscrews also assist with thermal stability. A 120-tool magazine comes standard, which is expandable to 376 tools.

More Value

The outstanding flexibility of the DHF 8000ST comes at a very competitive price. The turning function even makes it possible to replace standalone turning centers in the shop, saving on capital expenditures as well as floor space. And if you’re looking to dive a little deeper into the details and learn more, contact us today.