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The Hwacheon Hi-Tech 450 horizontal turning center offers a 500-mm turning diameter and 1,350-mm turning length in a small footprint. Applications include hydraulic valves, connectors, flanges and long shafts, particularly for the oil and gas industries.
A high-powered spindle with integral motor offers a low speed of 800 rpm for high-torque turning and a maximum speed of 3,500 rpm with rapid feed rates of 20 m/min. in the X axis and 24 m/min. in the Z axis. The turret capacity is 12 tools, and indexing time to adjacent tools is 0.25 sec. A geared transmission system enables high-torque turning at low speeds as well as high speed turning. The transmission is separate from the spindle motor to reduce heat and vibration.
The turning center has an integrated 45-degree angle bed frame said to minimize heat distortion and promote chip-shedding and work area access. According to Hwacheon, the hand-scraped guide surface and bed design absorb vibration and increase stability during hard turning. All guide surfaces are rectangular and incorporate tack guide to maintain rigidity and accuracy in prolonged operation. Chuck sizes of 10, 12 or 15 are available, with a through-hole diameter ranging to 132 mm. The machine can be equipped with an optional Y axis for multi-function operation.
Editor PickRobotic Cell Cuts Cycle Time, Improves Part Quality
Sew-Eurodrive Inc. worked with Okuma America’s authorized systems dealer, Gosiger Automation, to design an automated cell that includes an automatic, magazine bar feeder that loads 6-ft. lengths of barstock into the machine. The shop also switched to an Okuma twin spindle, twin turret turning center so all of the machining operations are completed in one setup, thus eliminating additional fixtures and operator intervention. The resultant system reduces cycle times and requires much less operator involvement. As a result, production time per part was more than cut in half – from about 5 minutes to 2 minutes, 20 seconds.