Contact Details
Hwacheon Machinery offers its VT-950/1150 series of vertical CNC lathes, ideal machines for large-part turning, with 43.3- and 53-in. swing over the bed and cutting diameters to 52" with chucks sizes from 24" to 40"
Precision hand-scraped and polished guide ways in all axes and rigid one-piece machine bed design mean the VTLs from Hwacheon are designed to absorb vibration and provide optimum stability in hard turning applications.
A rapid feed (X/Z) of 944 inch/min permits quick positioning of the tools. A 12- or optional 24-station servo-type tool turret, carrying tools up to 2.5" dia. offers indexing time of just 0.2 sec, helping to reduce cycle time.
The machines can be provided with a turnmill option to provide even greater machining flexibility for completing more complex large parts complete.
The machines also is provided with Hwacheon's Lathe Tool Load Detection System software which constantly detects and diagnoses the tool load during machining to reduce tool wear and prevent damage, optimizing tool life.
VT-950/1150 range has an integrated 45-degree angle bed frame to minimize heat distortion. The unique bed design absorbs the vibration sufficiently, to ensure high degree of precision at hard turning.
The VT-950 and VT-1150 spindles provide powerful chucking for stable, precise machining. The Hwacheon clean room assembly facility, where these super-precision, super-rigid spindles are manufactured, maintains optimal temperature and humidity, resulting in spindles that meet the toughest quality standard in the industry. All Hwacheon spindles are oil-cooled.
The geared drive system allows for high-torque turning at low speed and also high speed turning. The transmission and the spindle motor are designed separately so that the heat and the vibration generated from the transmission don't interfere with the spindle motor. For the VT-1150, maximum spindle speed is 630 rpm generated by a 73.5 hp motor. The VT-950 achieves 1125 rpm with a 40-hp drive.
Related Glossary Terms
- computer numerical control ( CNC)
computer numerical control ( CNC)
Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.
- feed
feed
Rate of change of position of the tool as a whole, relative to the workpiece while cutting.
- hard turning
hard turning
Single-point cutting of a workpiece that has a hardness value higher than 45 HRC.
- lathe
lathe
Turning machine capable of sawing, milling, grinding, gear-cutting, drilling, reaming, boring, threading, facing, chamfering, grooving, knurling, spinning, parting, necking, taper-cutting, and cam- and eccentric-cutting, as well as step- and straight-turning. Comes in a variety of forms, ranging from manual to semiautomatic to fully automatic, with major types being engine lathes, turning and contouring lathes, turret lathes and numerical-control lathes. The engine lathe consists of a headstock and spindle, tailstock, bed, carriage (complete with apron) and cross slides. Features include gear- (speed) and feed-selector levers, toolpost, compound rest, lead screw and reversing lead screw, threading dial and rapid-traverse lever. Special lathe types include through-the-spindle, camshaft and crankshaft, brake drum and rotor, spinning and gun-barrel machines. Toolroom and bench lathes are used for precision work; the former for tool-and-die work and similar tasks, the latter for small workpieces (instruments, watches), normally without a power feed. Models are typically designated according to their “swing,” or the largest-diameter workpiece that can be rotated; bed length, or the distance between centers; and horsepower generated. See turning machine.
- lathe bit ( lathe tool)
lathe bit ( lathe tool)
Cutting tool for lathes and other turning machines. Normally a single-point cutting tool, square in cross section and ground to a shape suitable for the material and task. Intended for simple metal removal, threading, slotting or other internal or external cutting jobs. Clearance to prevent rubbing is provided by grinding back rake, side rake, end relief and side relief, as well as side- and end-cutting edges.
- turning
turning
Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.
PRODUCTS
