Union BF110.8

The Union BF110.8 is a CNC horizontal boring and milling machine engineered in Germany for high-precision heavy-duty machining. Built on decades of Union Chemnitz tradition, the BF110.8 features an 110 mm spindle diameter and a robust box-way construction that delivers exceptional rigidity under demanding cutting conditions. This machine is a staple in industries such as energy, heavy equipment manufacturing, and large-scale aerospace subassemblies where workpiece complexity and dimensional accuracy are paramount.

The BF110.8 is designed around a modular table concept that accommodates floor plates and rotary tables of varying capacities. The machine's headstock travels vertically along hardened and precisely ground box guideways, while the spindle advances in the W-axis for deep-bore and facing operations. A wide X-axis travel range makes it possible to position even oversized workpieces without repositioning setups, reducing cumulative error and improving cycle time on complex prismatic parts.

Union equips the BF110.8 with a Siemens SINUMERIK 840D sl control system, providing full five-axis interpolation capability and access to Union's proprietary machining cycles. The CNC architecture supports DIN-ISO programming as well as conversational shopfloor programming, making the machine accessible to both experienced operators and those transitioning from older NC equipment. Real-time spindle load monitoring, thermal compensation, and integrated probing cycles ensure that part quality is maintained across long production runs.

The spindle drive system uses a wide-range gearbox combined with a high-torque AC spindle motor to deliver maximum cutting performance across the full speed range. Low-speed high-torque performance is essential for large-diameter boring and milling cutters, while the high-speed range supports finish milling and contour interpolation with small-diameter tools. The BF110.8's spindle bearing arrangement is engineered for minimal thermal growth, and the machine includes active cooling of spindle bearings and guideways to maintain positioning accuracy during extended shifts.

Purchased by job shops, tier-one suppliers, and in-house maintenance departments that machine large structural components, the BF110.8 represents a mid-range entry into Union's horizontal boring mill product line. It bridges the gap between lighter floor-type boring machines and the large gantry mills used for the largest workpieces. Competitive pricing relative to comparable Swiss and Japanese horizontal boring mills, combined with Union's established European service network, makes the BF110.8 a practical choice for manufacturers seeking German engineering quality with strong long-term support.