Niigata's new HN1000-S Horizontal Machining Center from SNK America Inc. is said to be capable of swinging a part up to 2,300mm (90.6") in diameter and 1,850mm (72.8") in height. The HN1000-S rapid traverse rate of 40m/min. (1,575ipm) allows for the reduction in non-cutting time.
To ensure high levels of accuracy, the HN1000-S includes a hybrid guideway system consisting of an ultra heavy-duty roller guide system on the X- and Z-axes and a hardened ground box way system on the Y-axis. A rigid spindle snout reduces the need to extend the quill to reach the part and provides a high radial load capacity for heavy milling cuts.
The HN1000-S also features a center-mounted spindle that eliminates the column twist of a side-mounted spindle. For accuracy and rigidity said to be superior to table-feed machines, the column feeds of this HMC have compound slides (stacked X- and Z-axes).
The mono-block casting spindle headstock of the HN1000-S includes a gear-driven system that achieves heavy milling capability for demanding applications. The standard spindle achieves speeds of 6,000 rpm. For additional machining applications, the machine can be equipped with a BAR/Quill-style spindle. Other optional spindles are available.
The HN1000-S also includes true coolant through the spindle for improved cutting conditions, longer tool life and superior chip removal capabilities.
Related Glossary Terms
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- gang cutting ( milling)
gang cutting ( milling)
Machining with several cutters mounted on a single arbor, generally for simultaneous cutting.
- machining center
CNC machine tool capable of drilling, reaming, tapping, milling and boring. Normally comes with an automatic toolchanger. See automatic toolchanger.
Machining operation in which metal or other material is removed by applying power to a rotating cutter. In vertical milling, the cutting tool is mounted vertically on the spindle. In horizontal milling, the cutting tool is mounted horizontally, either directly on the spindle or on an arbor. Horizontal milling is further broken down into conventional milling, where the cutter rotates opposite the direction of feed, or “up” into the workpiece; and climb milling, where the cutter rotates in the direction of feed, or “down” into the workpiece. Milling operations include plane or surface milling, endmilling, facemilling, angle milling, form milling and profiling.
- rapid traverse
Movement on a CNC mill or lathe that is from point to point at full speed but, usually, without linear interpolation.