components New motor
components New motor spindles save users second machine SAUTER is presenting a new series of motor spindles with exceptionally high power density. The spindles are suitable for turning/milling centers and three- and five-axis milling machines and can be used in conjunction with a B-axis if required. The market innovation: thanks to a new cartridge system, users can implement two different machine concepts in the same installation space, thus saving a second machine tool. In the Speed Drive ® variant, the motor spindles achieve very high speeds of up to 30,000 rpm, and in the Torque Drive ® variant, torques of up to 450 Nm are possible. Previously, two differently configured machine tools were necessary to perform milling operations with high torques or high speeds. Thanks to the new cartridge design, SAUTER’s motor spindle series makes it possible for the first time to implement both applications on just one machine. If, for example, it becomes necessary to change from torque drive to speed drive motor spindles, all that is needed is to replace the spindle cartridge. Furthermore, only minor adjustments need to be made in the control cabinet area. “Simply change the cartridge and off you go. This allows users to react extremely quickly and flexibly to changing requirements. They also save themselves the very expensive investment in a further machine,” says Manuel Keppeler, Head of Mechanical Development at SAUTER. The new series of motor spindles also offer maximum flexibility in other respects: the spindles are available with different types of lubrication, clamping, interfaces, and milling heads. The pre-installed sensor technology also comes from SAUTER. The expert for tool turrets and tool SAUTER’s new motor spindles make it possible for the first time to achieve both high speeds and high torques in just one machine carrier systems supplies its new motor spindles with integrated plan system control, leakage testing, and temperature and vibration monitoring on customer request. This means that the duty cycle of the overall system, process stability, and metal-cutting volume can be varied to suit customer requirements. Implement all requirements in one machine The new SAUTER system is currently being used to manufacture products for the aerospace, mechanical engineering and medical industries in particular. However, the possibilities are far more varied, ranging from classic 2-axis to 5-axis machining, from round material with a single bore to turbine blades. With SAUTER’s new motor spindles in conjunction with a rotary axis such as a B-axis, for example, users can implement all requirements in one machine, as far as its size allows. Motor spindle without housing Motor spindle with housing further information: www.sauter-group.com 48 no. 4, November 2020
components Integrate many tool grinding machines on one filtration system Optimally filtered cooling lubricants are the prerequisite for higher productivity when grinding carbide and HSS tools. Especially when a great number of grinding machines on a single filtration circuit, a powerful central filtration system for cleaning contaminated grinding oils or aqueous coolants becomes indispensable. VOMAT a company specializing in metalworking fluid filtration, from Treuen, Germany, provides stand-alone filtration systems with their FA series - as well as central filtration systems with their ZFA series-machines, that can be config - ured to suit any given production situation. VOMAT systems increase the life of the cooling lubricant thanks to high-performance pre-coat filters and automatic ondemand flushing and back-flushing technology. Economic, process-reliable tool grinding with high quality results is only possible with extremely clean grinding oils. VOMAT is a specialist for ultra-fine filtration of cooling lubricants in the metalworking industry. The product portfolio includes solutions for stand-alone and central systems as well as individual customer-specific special configurations with central and decentralized functions. Steffen Strobel, technical sales manager at VOMAT states: “The larger the production batches are and the more grinding machines are integrated into the filtration process, the more likely our ZFA central filtration systems are the right solution. They can be precisely adapted to the respective production conditions and needed coolant flow rates. Further capacity extensions are also possible, in case of later production expansion. Our ZFA systems grow with changing requirements thanks to their modular design. Modular units such as frequency-controlled ma chine pumps, The central filtration systems from VOMAT consist of separate modules that can be scaled up in steps of 1,200 liters tanks and cooling components allow for this flex ibility. It also results in maximum filtration performance indifferent phases of a company’s development.” Thanks to flexible modular units such as frequency-controlled machine pumps, tanks and cooling components, the ZFA-system can adapt to changing system requirements VOMAT filtration systems have an on-demand backwash system which automatically starts once it senses, that the filters have reduced throughput. In addition VOMAT systems, always separate dirty and clean oil 100 %. Due to the backflushable high-performance pre-coat filters, cost-intensive filter aids are unnecessary. The cen tral control unit links all system modules and controls external components such as machine supply pumps (MSP) etc. In addition, remote diagnostics is available via an internet connection. Steffen Strobel: “The data exchange between the machine tool and the filtration system takes place via control signals. When two or more machines are connected to one filtration system, a machine interface box is required. The control signals can be provided by either the filtration system or by the machine tool”. The ZFA 1200 is the base model of VOMAT’s central filtration systems and is capable to filter to a fineness of NAS 7 quality class (3-5 µm). The cooling capacity of the PLC-controlled cooling unit is designed to fit any given production process. The AC generated heat is dissipated via an external condenser. VOMAT also offers cold watercooling as an option. The ZFA 1200 filtration unit is very compact with dimensions of 1200 x 1200 x 2200 mm (l x w x h). The base unit can be expanded in steps of 1,200 liters thanks to the large selection of modules and additional optional components. The sludge disposal volume is reduced to a minimum due to minimal drag-out loss. The recyclable material is disposed of fully automatically directly into the transport containers provided by the recycling companies. The residual moisture of the recyclable carbide and HSS swarf is approximately 5-10 %. further information: www.vomat.de no. 4, November 2020 49
