Hardinge Inc. offers two additional Bridgeport 5-face (4+1) vertical machining centers (VMCs) - the GX 250 5F and GXR 320 5F. According to the company, they are designed to achieve maximum capacity and performance in the job shop, OEM, aerospace, medical, electronic, defense, automotive and power generation industries, as well as other manufacturing sectors.
Two machine sizes are available and come standard with a FANUC 0i-D control for 4+1 machining. 4+1 refers to the use of four simultaneous axes plus one axis that is used for positioning only. 4+1 or 5-face machining is a step up from 3-axis machining where just 1 or 2 sides of the part are machined per set-up. 4+1 machining allows the part to be machined on 5 faces in one single set-up. The part remains in one fixture instead of being moved from one fixture or vise to another, which is intended to reduce set-up time while improving accuracy.
The GX 250 5F (4+1) with travels of 11.8" x 15.6" x 16.9" (XYZ) provides rapid traverse of 1,181 IPM on X, Y and Z axes and features a 20 HP, 15,000 RPM direct drive spindle motor with 70.4 ft-lbs of torque and a 30 tool swing arm automatic tool changer (ATC). The larger GXR 320 5F (4+1) with travels of 20" x 24" x 20" (XYZ) provides rapid traverse of 1,693 IPM on X and Y axes and 1,417 IPM on the Z axis. The machine features a 25 HP, 12,000 RPM direct drive spindle with 86.3 ft-lbs of torque and a 48 tool swing arm ATC.
Bridgeport 5-face (4+1) machining centers feature an integrated 5-axis rotary table supported by large bearings designed to allow heavy horizontal and vertical cutting loads with smooth and accurate rotation. Bridgeport incorporates heavy-duty linear guideways and oversized double-nut ballscrews that are pre-tensioned to help provide accuracy and repeatability. The linear way modules consist of slide members (guide trucks) and linear rails designed to provide a large load rating, stable accuracy, high rigidity and low friction. The wide spacing between all axes rails provides stiffness for the overall machine structure. Oversized 45 mm (1.77") ballscrews are featured in the GXR 320 5F, while 32 mm (1.26") ballscrews are incorporated in the GX 250 5F. All of these features are designed into a small cost-effective footprint, according to the company.
"Bridgeport 5-face (4+1) machining centers are designed to provide an optimum work envelope to machine small to medium parts," said a company spokesperson. "Machines with larger work envelopes use a larger rotary table, increasing the size of the machine, increasing the overall cost. Bridgeport offers a smaller footprint machine for 5-face machining that is ideal for the medical and dental market and that complements the automotive, aerospace and other industries as well."
Both machines offer standard features that include a BIG-PLUS spindle, oil chiller, chip conveyor, coolant flush system, preparation for through spindle coolant (with rotary union), coolant wash down gun, tri-color stack light and many standard control features.
For more information contact:
Hardinge Inc.
P.O. Box 1507
Elmira, NY 14902-1507
800-843-8801
info@hardinge.com
www.hardinge.com
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