Leading-edge technology for machine tools

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1 Leading-edge technology for machine tools

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3 We combine five specialists in one Improving productivity and successfully distinguishing themselves from the competition are key objectives for machine tool manufacturers in the present climate. High-performance components from the LTi Group offer everything you need to meet those growing demands: Fast, flexible CNC Highly dynamic drives Efficient motors Spindles for highest precision and high-speed machining Precision sensors Each of our components will help to enhance the precision and dynamism of your machine to make it work faster and deliver even higher quality products. As productivity rises, the complexity of your machine tool is also increasing continually. And your machinery also has to meet functional safety and energy efficiency requirements too. Our package of coordinated components will reduce your in-house development expenditure and shorten your products time to market. Because interaction between high-quality single components is key to delivering a harmonious overall result. 2 3

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5 CNC controllers Improved productivity based on optimum machining speed Less reworking thanks to high surface quality Open system allows for custom variants Special functionality for laser machining Scaleable computing power Drive engineering DC or mains-powered servocontrollers with outstanding control precision delivering high machining quality Wide power range, graduated in various compact sizes from 2 A to 450 A Open system for various field bus systems and rotary encoders Flexible safety concept Especially well suited to high output frequencies Servo motors Extensive range of motors for rotary drives, graduated in various compact sizes from 0.1 Nm to 60 Nm for ironless linear drives from 10 N to 846 N and iron-core linear drives from 60 N to 3000 N 6 7

6 What really counts are LTi s inner values

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8 Tool spindles Motor spindles up to 40,000 rpm from 15 kw to 120 kw Automatic or manual tool clamping systems Circular or rectangular spindle housings Air or liquid cooled Outstanding radial and axial run-out (< 2 μm) and supreme bearing rigidity Oil/air or grease lifetime lubrication Ultra-high-speed tool spindles with magnetic bearing technology Space-saving thanks to high power density For speeds up to 100,000 rpm Power outputs up to 25 kw Cost reduction thanks to - low power loss and - cold shaft Longer bearing life True running for high workpiece surface quality Sensors Space-saving, robust measurement systems for speed, angle, distance and position For high speeds with high angular accuracy For precise positioning Easy integration thanks to small components Highly robust and well suited to hostile ambient conditions 8 9

9 Good looks are not everything 4 5

10 A maestro as a soloist unbeatable as an ensemble The LTi Group brings together the full scope of technological know-how for fitting out machine tools. The individual Group companies are in their own right technology leaders in their fields. LTi has an established reputation in the provision of high-performance machine tools for Milling, engraving and turning Eroding and laser, ion and ultrasonic machining Grinding, lapping, honing and polishing Our customers are market leaders in the manufacture of Optics and glass working machinery HSC machinery Eroding machinery Grinding machinery and how about you? The outstanding features of a machine tool are dictated primarily by its CNC control, by its drive system and by its spindle technology. The andronic 3060 CNC controller from andron supports numerous interpolation modes with up to 16 interpolating axes. It can handle complex coordinate transformations as well as Cartesian calculation of parallel kinematics. A dynamic Look-Ahead buffer provides a preview of up to 25,000 blocks. The andronic 3060 takes less than 100 μs to process one NC block. The position setpoints are set at 125 μs intervals via a real-time-capable interface (such as SERCOS).

11 ServoOne servocontrollers from LTi DRiVES meet the highest demands in terms of dynamics and synchronism based on their integration of special control algorithms and their minimal dead times for speed and position control. The controllers are capable of evaluating a broad range of different encoders. LTi s patented GPOC method eliminates offset, gain, phase and eccentricity errors of analog encoder signals. A wide range of safety functions are built-in. Motor spindles from Fiege are available for all areas of industrial production engineering, such as grinding, dressing, turning, drilling or milling. The use of special materials guarantees high dimensional stability even under extreme operating conditions. Only high-precision pre-tensioned ball bearing are used. The custom-developed labyrinth, with supporting air purge, lastingly protects the high-grade spindle system against dust and cooling lubricant. High-speed spindles from LEViTEC are mounted on magnetic bearings. Magnetic bearing technology extends bearing life and the true running achieved results in better surface qualities. The low power loss means there is less heat on the shaft, enabling higher accuracy at much higher possible speeds. Sensors from Sensitec are used wherever speed, angle and position need to be measured by non-contact means, with high dynamism and precision, in robust environments

12 LTi the machine tool supplier Competent, flexible, reliable and strong andron GmbH Schlätterstraße Wasserburg/Bodensee Fon +49 (0) 8382 / Mail info@andron.de Heinz Fiege GmbH & Co. KG Odenwaldring Röllbach Fon +49 (0) 9372 / Mail info@fiegekg.de Fon +49 (0) 6441/ Fon + 49 (0) 6441 / Fon +49 (0) 6441 / LTi Group