Bridge-Type Machining Centers

The RB-NM series bridge-type machining centers are the company’s latest generation in their RB line and incorporate many advanced design, construction and software features that make fast work of high-precision, five-face machining in a single setup.

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The RB-NM series bridge-type machining centers are the company’s latest generation in their RB line and incorporate many advanced design, construction and software features that make fast work of high-precision, five-face machining in a single setup. The company says the series includes the RB-6VM with a spacious machining envelope and travels of 246" in X, 150" in Y, 24" in Z and 63" in the W-axis. Featuring rigid double column design and construction, the company says the series delivers stability and machining accuracy. A CNC controlled W-Axis (infinite positioning crossrail) and five-face machining capability are said to provide expanded machining flexibility. The company says the combination of a 40-hp, 40 rpm to 4,500 rpm spindle and 236 ipm in the X and Y cutting feed rate enables high speed cutting, producing machined finishes at a fast rate. A 393 ipm on the X-axis and 787 ipm on the Y-axis rapid traverse rates are said to cut idle time. The machining centers are ideal for machining dies, molds and other applications requiring precise machining. The control incorporates the company’s five-face machining software that lets even inexperienced operators create five-sided machining programs with about the same ease as on conventional machining centers, says the company. According to the company, the machine is equipped with attachments to aid in five-siding machining tasks. A 90-degree angular attachment indexable at every 1-degree, and a center swing attachment that can rotate from +180 degrees to –179 degrees and swivel from 0 degrees to 95 degrees, each indexable at 1-degree, make this a versatile machining center. With a table load capacity of 132,000 lbs, the company says the centers can be used for heavy workpieces. The company says the spindle nose taper is a dual contact type CT 50 design, and the machine's automatic tool changer (ATC) has a capacity of 40 tools.