Hyundai WIA has announced an all-new series of twin spindle multitasking CNC turning centers, the LM1600/1800TT. With upper and lower turrets and available Y- and C- axes, processing of complex parts in volume production runs, the new series is really four machines in one - two lathes and two mills. These new turning centers feature high power built-in spindle motors and upper and lower turrets for high productivity. Precise synchronized facing twin spindles reduce idle time and BMT-type turrets guarantee accuracy and power, the company said.
"The challenge today is for shops of all sizes to machine as many part features as possible in a single setup on a single machine. Central to accomplishing this is a machine that can do multiple operations (milling and turning) in a single set up, which the Hyundai WIA LM1600/1800TT accomplishes with ease," said a company spokesperson. "Benefits offered by the LM1600/1700 TT include compressing lead times from days to hours and reducing lot sizes with no cost penalty; lots as small as one piece can be done efficiently and cost-effectively. The Hyundai WIA LM1600/1800 TT also slashes non-value added time (fewer fixtures, tools and less labor). Further, it can improve part accuracy by reducing tolerance stack ups between multiple fixturings. Finally, the LM1600/1800TT reduces shop burden (fewer machine tools, reduced floor space and more cost effective use of utilities). You can also run untended (one operator can run several machines, or you can run an entire third shift untended), which increases cutting time without the attendant labor costs.
"The LM1600/1800TT Series features a 45-degree slant bed design which was developed using finite element analysis (FEA). In order to eliminate thermal growth and increase accuracy, all axes are driven by high precision double-nut ballscrews. The pretensioned and double anchored design is intended to provide outstanding positioning and repeatability with virtually no thermal growth. Rapid high-speed axis movement is achieved by the use of linear motion guide ways in the Z-axis, complimented by box guide ways in the X- and Y-axes, for added rigidity. This unique combination reduces non-cutting time and decreases machining time for greater productivity. Rapid traverse: X1/X2 axes, 20/20 m/min (787 IPM); Z1/Z2 axes, 40/40 m/min (1,575 IPM); Y-axis, 7.5 m/min (295 IPM)."
The upper turret on the TTY and TTSY configured machines utilize a wedge-type Y-axis which permits machining of complex parts in a single chucking. With a Y-axis travel of +/- 50 mm (100 mm [3.94"] total), a wide range of work pieces can be machined.
The LM series utilizes built-in spindle motors for both the left and right with identical specifications for high-speed precision machining in either direction. Each spindle features ultra precision angular bearings to provide high-speed accel/decel as well as smooth machining with minimal noise and vibration at high RPMs, even at the highest rotational speeds. Spindle temperature is further controlled by the use of a spindle chiller, which ensures constant oil temperature and minimizes growth in the spindle caused by heat distortion. Left and right spindle specifications are equal 6,000 RPM, 15/11 kW, A2-5 with 208/140Nm of torque on the LM1600TT and 5,000 RPM, 22/11 kW, A2-6 with 358/214 Nm of torque on the LM1800TT.
Revolutionary live tooling features a 5.5/1.1 kW motor with a maximum milling speed of 5,000 RPM and torque of 47 Nm. An ER25 collet system allows up to 16 mm diameter tools to be used.
The standard automatic Q setter allows tool offsets to be set quickly and accurately. This system can also be utilized as an in-process function to monitor tool wear and detect broken tools.
The LM series of Twin Spindle Multitasking Machines feature the latest generation Fanuc 31iA CNC control, which makes available a multitude of post processor technologies available through a large network of CAM vendors. Networking capabilities allow programs to be loaded directly to the shop floor from the CAM workstation and the optional Manual Guide i conversational programming system.
For more information contact:
Hyundai WIA Machine America Corp.
450 Commerce Blvd
Carlstadt, NJ 07072