THG 80 / THG 125
3Pages

BASIC PARAMETERS Max. torque on spindle: Max. weight of workpiece between centres: 30 tonnes Turning length: High ridigity of THG roll lathes makes it possible to turn the rolls of high hardness providing high productivity during rough machining and high accuracy during finishing operations. Special design of guideways for carraige and cross-slide travels ensures vibrationfree operation at high torque and low cutting speed. PURPOSE The THG series lathes are designed for workpiece machining in the range of turning in accordance with their specifications, especially for machining and calibration of rolls used in steel industry. CONTROL SYSTEM The application of the state-of-the-art CNC system allows for automatic, precise and productive workpiece machining according to a program. MAIN FEATURES 3-guideway bed with additional guideway supporting carriage Main guideways carburized and hardened up to 60 HRC Bed design makes it possible carriage to pass headstock, steady rests and tailstock Box-type double wall design of headstock guarantees high rigidity Spindle rested on bearings of increased accuracy class Headstock is central lubricated Tailstock body made as high grade grey iron casting T ailstock spindle adapted to install 4-jaw chuck Carriage guided on two bed guideways Longitudinal and crosswise travels on anti-friction material and assisted by central lubrication system Double lamell cross-slide guided on two hardened guideways

STANDARD EXECUTION Swing over bed Ø 800 mm (THG 80) Turning length 3,000 to 10,000 mm, every 1,000 mm 4-jaw chuck Ø 800 mm Double lamell cross-slide rested on three guideways Power of main drive motor 71 kW (continuous operation) Spindle rotation rates 0.5 to 315 rpm Power supply 3  400 V / 50 Hz SIEMENS 840D sl Operate CNC system Carriage travels (Z axis) driven by backlashless rack & pinion transmission Cross-slide travels (X axis) driver by ball screw and nut system Automatic change of range of spindle rotation rates Central lubrication system controlled by CNC Chip conveyor 6 bar tool...

^ BASIC TECHNICAL SPECIFICATIONS POR^BA 1798 ^HgRUPA RAFAMET