GRINDSTAR
7Pages

Catalog excerpts

REPLACE TURNING WITH GRINDING

GRINDING PROCESS HIGH-SPEED PLUNGE-CUT GRINDING Minimal grinding times can be achieved with GRINDSTAR. This new kind of grinding method can be used both with CBN and diamond as an abrasive. Especially when dealing with large production volumes, this opens up scope for enormous savings. The machine is fitted with innovative coolant technology which helps to extend tool life. Machine availability is more than 96 %. Two different grinding methods are used in the machine: Firstly plunge-cut grinding/profile grinding, and secondly cut-off grinding. The essential synergy effect is achieved by...

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HIGHLIGHTS • Minimal piece costs due to: - Shorter grinding times through plunge cut grinding of the entire contour - Long grinding wheel service life - High process reliability - Simultaneous grinding of the front and back - Reduced downtimes • Customer-specific process and technology configuration • Grinding of difficult-to-machine and hardened materials possible • No chip removal problems, as small chips are transported away by the cooling medium • Machine availability greater than 96 % • Low-manned production and cost benefits due to grinding directly from bar stock • No burr formation...

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EQUIPMENT AND OPTIONS SIMULTANEOUSLY SWITCHED WORKPIECE SPINDLES The two synchronized workpiece spindles ensure optimum workpiece transfer for profile grinding and cutting off. Their speed can be steplessly adjusted depending on the application from 1 - 6,000 rpm. A hydraulically actuated collet chuck provides impressive ultra-precise concentricity. METICULOUSLY DESIGNED MATERIAL AND WORKPIECE HANDLING The bar feeder – with a capacity of up to 4 meters in the standard version and optionally up to 6 meters – takes care of the storage and infeed of bar stock. The bar feeder also removes bar...

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SPECIFIC MEASUREMENT SYSTEMS The measurement systems are also individually adjusted to the various workpieces and customer specifications. The measurement methods used allow captured measured values to be evaluated and used for measurement correction in line with the prepared measurement strategy. Fields of competence TECHNOLOGY CENTERS The JUNKER Technology Centers in Nordrach, Germany and in Holice in the Czech Republic offer a wide selection of grinding machines for demonstrations and customer-specific grinding tests. These facilities give potential buyers and customers the chance to be...

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TECHNICAL DATA GRINDSTAR Grinding spindle Grinding wheel diameter Grinding wheel width Cutting speed max. Abrasive Workpiece spindle Secondary spindle Workpiece clamping Cooling lubricant Achievable accuracy levels Grinding length Bar capacity Axes: X1, Z1, X2, Z2 Max. feed rate Connected load Machine dimension Weight MATERIAL Carbide/carbide-steel alloy Hydraulic Standard grinding oil IT 6 / Cmk > 2 max. 400 mm (100 mm for complete grinding) 2 - 20 mm (special collet chuck 2 -40 mm) CNC X = 18 m/min; Z = 36 m/min 75 kVA 2400 x 1800 x 2100 mm ca. 4.500 kg Construction steel/case-hardened...

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EUROPE Erwin Junker Maschinenfabrik GmbH JunkerstraBe 2 77787 Nordrach Germany info@junker.de +49 (0)7838 84 0 wwwjunker.de Erwin Junker Makina Sanayi Ticaret LTD. STi. Esentepe Mah. Milangaz Cad. No:75 Monumento Kartal/Istanbul Turkey info@junker-turkeycom.tr +90 216 504 28 11 www.junker-turkey.com.tr Erwin Junker Grinding Technology a.s. Russia Branch Office Prospekt Tolbukhina 17/65 150000 Yaroslavl Russian Federation info@junker-russia.ru +7 (4852) 20 61 21 wwwjunker-russia.ru LTA Industrial Air Cleaning Systems s.r.o. Lidicka 66 252 68 Stredokluky Czech Republic info@lta.de +420 233...

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