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The rigid structure of the 50-taper BMC-110 horizontal boring mill (HBM) is said to be key to its accuracy in heavy machining operations. This 55,000-lb machine has a Meehanite cast iron structure in addition to a moving column for the Z axis and a moving table for the X axis. This design is said to be an alternative to a moving table/fixed column machine and provides full support of the table over the complete X-axis travel. The HBM features precision-ground and induction-hardened box ways in the X, Y, and Z axes. Travel in X, Y, Z and W axes are 78.7", 70.8", 63" and 21.65", respectively. Maximum workload capacity is 15,400 lbs. The 4.33" quill is made from chrome-moly steel alloy. The spindle and sleeve are nitride hardened and then precisely ground and lapped. A 35-hp main motor is coupled to a two-speed gear drive. Maximum spindle speed is 3,000 rpm, and the spindle and headstock are oil cooled for minimal thermal growth. Standard features includes a 60-tool, arm-type ATC; a two-stage chip removal system; a high-volume coolant system; tall table guards to contain chips and coolant; and a Fanuc 21iM-B control. In addition, the machine offers a full B-axis rotary table, Heidenhain linear scales and 300-psi coolant through the spindle. An optional Fanuc 18iMB control is available for high speed mold and die machining as is a full enclosure.
Editor PickMachining Centers Designed for Productivity, Reliability for Automotive
Mazak introduces the UN series of high-speed vertical and horizontal machining centers with the UN-600/30V, a VMC, and the UN-600/30H, an HMC.