August 12012 — Okuma America Corp. introduced the new LT-3000EX CNC lathe. The LT-3000EX is now the largest in Okuma's LT-EX series of horizontal lathe machines.
This fully-loaded CNC lathe is available in ether two- or three-turret versions, with or without Y-axis, to provide optimum process balance, production throughput and integrated operations. The LT-3000EX delivers precision turning in any direction, and is well suited for high production environments such as the automotive industry.
The LT-3000EX is available with 16 turret stations to allow for redundant tooling in order to best utilize back-up tooling for lights-out manufacturing or high production runs. It offers very high feature utilization and the greatest amount of primary and secondary machining possible in one compact platform. The machine can be specified in a large number of different configurations to maximize benefits for specific production environments.
Key Specifications for the LT-3000EX:
Maximum Turning Diameter: 13.77 in (350mm)
Spindle ID: 3.15 in (Standard Bore) or 3.58 in (Big Bore) [80mm or 91mm]
Spindle Nose Type: A2-6 (A2-8 optional)
Chuck Class: 8-inch
Speed Range 45~5,000 rpm (45~4,200 rpm optional)
Standard Power: VAC 22/15 kW (30/20 hp) [30/22 kW (40/30 hp) optional] T
win Opposed Spindles: A-B operation simultaneous, 4-axis simultaneous turning on either spindle
Automatic Part Transfer
THINC OSP P300L Control
Okuma Intelligent Technologies: Thermo-Friendly Concept (standard), Machining-Navi (optional) and Collision Avoidance System (optional)
M and MY function available
Optional Barfeed Systems
Related Glossary Terms
Workholding device that affixes to a mill, lathe or drill-press spindle. It holds a tool or workpiece by one end, allowing it to be rotated. May also be fitted to the machine table to hold a workpiece. Two or more adjustable jaws actually hold the tool or part. May be actuated manually, pneumatically, hydraulically or electrically. See collet.
- 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.
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.
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.