JUSTAR
13Pages

CUTTING TOOL PRODUCTION

BLANK GRINDING Lean Selection speed, Lean Selection allround QUICKPOINT 1000, QUICKPOINT 3000, QUICKPOINT Blank Your partner for a sharper edge THREADED TOOL GRINDING High precision, economy and reliability - the grinding machines of the high-performance JUNKER Flutes: JUMINIMAT, FLUTEMAT, JUMAXIMAT Thread and chamfer: TAPOMAT 1000, TAPOMAT 3000 TOOLTEC series are among the technological leaders in the field of cutting tool manufacturing. The most discerning customers use JUNKER TOOLTEC to produce taps, drills, mills, reamers and sinks, as well as saw blades and a variety of special cutting...

BLANK GRINDING L ean Selection speed External cylindrical grinding Lean Selection speed grinds tool blanks at truly impressive speeds. One or more high-performance grinding spindles mounted at the swivel-action QUICKPOINT grinding method wheelhead (B axis) work using both the plunge-cut and QUICKPOINT grinding methods. This feature Freely programmable, makes the grinding machine extremely flexible and steplessly adjustable B axis capable of implementing several grinding operations Workpiece driven between centers in a single clamping set-up. Ingeniously engineered automation Carbide step...

BLANK GRINDING QUICKPOINT Blank External cylindrical grinding External cylindrical grinding directly from round bar stock, diameter 3 – 25.4 mm QUICKPOINT 1000: max. dia. 50 mm QUICKPOINT 3000: max. dia. 150 mm The QUICKPOINT grinding method, patented by JUNKER, ensures efficient blank grinding. With up to three high speed grinding spindles and a grinding contact area no bigger than a point, the QUICKPOINT grinds shoulders, tapers, chamfers and grooves in a single clamping set-up. Extremely low-wear CBN or diamond grinding wheels, just a few millimeters wide, are used. The QUICKPOINT Blank...

THREADED TOOL GRINDING JUMINIMAT Threaded tools Flute grinding dia. 1 – 12.7 mm The JUMINIMAT grinds the flutes of small threaded tools with up to four grinding wheels. The threaded tool is ground either unsupported or with tailstock Maximum dimensional stability support. If required, a steady can be used for Integrated dressing unit stabilization. The integrated loading system takes care Compact design of a high level of independent operation and can be Different tool cassettes possible swiveled to the side for retooling. Integrated loading system HSS tap: M1, spiral fluted Cycle time: <...

THREADED TOOL GRINDING Groove and chamfer grinding dia. 6 – 42 mm Thread and chamfer grinding dia. 3 – 32 mm (52 mm) In the JUMAXIMAT, the threaded tool is ground either Threaded tools The TAPOMAT 3000 also works with two grinding wheels. unsupported or with tailstock support. A steady can be used for stabilization. Requirement-based loading systems ensure a smooth production sequence. A CNC dressing unit creates all the profile shapes. The thread and chamfer are ground in a single clamping Automatic coolant pipe adjustment set-up. All chamfer shapes can be generated with a diamond dressing...

TWIST DRILL GRINDING DRILLMAT Complete grinding of HSS twist drills DRILLMAT S: dia. 2 – 10 mm DRILLMAT L: dia. 5 – 20 mm The DRILLMAT grinds flutes, the face geometry and the back in a single clamping set-up. Stable bushing Strengths: operations, thus enabling maximum precision. Up to Face grinding prior to back grinding four corundum grinding wheels are mounted on the grinding spindle. With the DRILLMAT S, dressing is Rapid retooling possible simultaneously with the grinding and loading Twist drill grinding support ensures the necessary rigidity during grinding sequence. The cooling...

CUTTING TOOL GRINDING J UMINIMAT Complete grinding of cutting tools dia. 1 – 12.7 mm In a single clamping set-up, the JUMINIMAT grinds the flutes, end teeth and cutting relief from solid. The cutting tool is ground either unsupported or with tailstock support. If required, a swivel-in steady can be Integrated loading system Different tool cassettes possible Compact design Integrated CNC dressing unit Profile precision HSS shank cutter: dia. 6 mm, four cutting edges Cycle time: < 5 min Grinding task: Grinding the flutes, Cutting tools the end tooth and the body relief JUMAXIMAT Complete...

COMPLETE GRINDING OF A COMPREHENSIVE TOOL SPECTRUM JUSTAR Complete grinding of all kinds of tools dia. 2 – 24.5 mm (51 mm) The JUSTAR Grinding Center is the perfect machine for complete processing of an extensive range of workpieces. It offers maximum flexibility with top productivity and practice-oriented programming. Automatic dimensional correction A high-performance grinding spindle ensures high- Robot-operated coolant nozzle tracking speed cutting, and is supported by robot-operated Grinding wheel changer (with up to 30 grinding wheels) cooling nozzle tracking. Thanks to a measurement...

TOOTH GRINDING ON CIRCULAR SAWBLADES JUMAXIMAT IV Tooth grinding on circular sawblades dia. 20 – 203 mm NAJ VII / NAJ VIIa Tooth grinding on circular sawblades NAJ VII: dia. 100 – 550 mm NAJ VIIa: dia. 210 – 710 mm These special machines grind the peripheral toothing of circular saw blades in package clamping. All technical tooth profiles, with identical or non-identical tooth Grinding in package clamping heights, are ground from solid blanks. The oscillating Short cycle time longitudinal grinding process guarantees the Grinding of all tooth profiles with identical production of high-grade...

TECHNICAL DATA Clamping/ workpiece length Grinding length Drive capacity Peripheral speed Swivel grinding spindle Number of grinding Diameter Bore diameter, Width per wheels grinding wheel grinding wheel grinding wheel Workpiece diameter Lean Selection speed Lean Selection allround Corundum/CBN/ diamond CBN/diamond/ carbon CBN/diamond/ carbon QUICKPOINT Blank Tap: dia. 1 – 8 mm Thread milling cutter: max.12.7 mm man. loading: max. 740 mm autom. loading: 50 – 350 mm Thread only: max. 180 mm, Thread + chamfer: max. 150 mm man. loading: max. 550 mm, autom. loading: 40 – 305 mm man. loading:...