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 combining...

GREATER QUALITY AND MACHINE AVAILABILITY ONE MACHINE TO REPLACE MANY INDIVIDUAL STEPS Using a profiled grinding wheel permits plunge-cut grinding of the entire workpiece contour within an extremely short processing period. In terms of quality, finished workpieces demonstrate substantially greater dimensional stability compared to conventional turning methods. Complete grinding in a single machine significantly reduces process risks and unproductive time. Manufactured parts are up to 100% guaranteed to be free of burrs. Convex or level face ends can also be produced. And even difficult-to-machine...

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 material...

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 impressed...

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 steel/heat-treated...

Junkerstraße 2 77787 Nordrach Germany Erwin Junker Grinding Technology a.s. Plant Holice Pardubická 332 534 01 Holice Czech Republic Erwin Junker Grinding Technology a.s. Russia Branch Office Prospekt Tolbukhina 17/65 150000 Yaroslavl Russian Federation Erwin Junker Makina Sanayi Ticaret LTD. ŞTİ. Esentepe Mah. Milangaz Cad. No:75 Monumento Kartal/Istanbul Turkey LTA Lufttechnik GmbH Junkerstraße 2 77787 Nordrach Germany LTA Industrial Air Cleaning Systems s.r.o. Lidická 66 252 68 Středokluky Czech Republic Erwin Junker de Mexico, S. de R.L. de C.V. Blvd. Bernardo Quintana #7001 Torre 2, #1203...