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  • Offer Profile
  • The JUNKER Group is a world leading manufacturer of CBN high-speed grinding machines and offers a host of innovative grinding concepts from its machine portfolio. The ideal partner for diverse grinding applications, we supply entire groups, as well as medium-sized and small companies. All the renowned automobile manufacturers and suppliers, tool makers and companies in other industries rely on JUNKER technologies. For either mass or small series production: JUNKER machines are highly precise, economical and reliable.
Product Portfolio
  • Centreless grinding machines

      • JUCENTRIC 500

      • Grinding without workpiece deflection

        The JUCENTRIC 500 is characterized by extremely short cycle times and outstanding accuracy. The clamping set-up between centers retains the relation to the centerline when grinding shafts and pipes. At the same time, the support rail and regulating wheel guarantee perfect support.

        Perfectly supported

        The workpiece is positioned and clamped between centers. Grinding is carried out while clamped; the CNC-controlled support rail, the regulating wheel and the grinding wheel are evenly readjusted until the finished dimension is reached. This unique, ingenious procedure is currently patent pending.

        Driving is carried out via a driver on the C-axis of the workhead. Upon the completion of grinding, the grinding gap opens and the workpiece is removed.

        Benefits
        • Relation to centerline with clamping set-up between centers
        • High dimensional accuracy thanks to support by regulating wheel and support rail with patented CNC height adjustment
        • Shortest cycle times through simultaneous grinding of all diameters
        • Minimized undulations through grinding wheel balancing on two planes
        • Extremely low running noise due to grinding spindle with direct drive
      • JUPITER

      • Centerless cylindrical grinding

        At JUPITER, grinding means less cylindrical grinding, with CBN too on request. JUNKER combines this cylindrical grinding method with CBN wheels to create significant productivity advantages, especially with large batch sizes. This is coupled with the simultaneous abrasion along the entire grinding wheel width, which ensures considerably reduced machining times for both large and small-scale production.

        The JUPITER grinding principles

        There are two principles for less grinding: feed-through grinding and plunge-cut grinding. JUPITER can achieve both principles.

        Feed-through grinding applications:

        Bolts and bearing supports, large rings, smaller rings, piston components (e.g. for compressors), shafts with constant diameter, piston rods (e.g. for shock absorbers), small pistons for hydraulic and injection systems, precision wires and rods, piston bolts.

        Plunge-cut grinding applications:

        Rotor shafts, gearbox parts, bearing surfaces of camshafts, pipe components for composite camshafts, cardan joints, needle components for injuction systems, valve shanks, spherical rollers.

        The JUPITER 200, JUPITER 250 and JUPITER 500 come available with a full or partial enclosure.
      • TITAN

      • Grinding in final part quality

        The TITAN 500 produces workpieces to a superb standard of finishing quality using the throughfeed grinding technique. To allow this high standard of quality to be achieved, the TITAN features a wide range of machine attachments such as wheelhead, regulating wheelhead, work blade and infeed/outfeed which are aligned and calibrated to an extreme degree of precision. Another key factor in the achievement of final part quality is a high degree of machine rigidity using a vibration-damping, highly torsion-resistant cast mineral machine base designed specifically for CBN grinding.

        The grinding process with TITAN


        Using the throughfeed process with a wide CBN grinding wheel, the workpieces pass in seamless sequence through the machine, provided all workpieces have only a single diameter requiring a uniform grinding operation. The axial force of the regulating wheel, which is generally inclined at an angle of 1.5 - 3.5°, "pulls" the flow of workpieces through the wheels towards the end of the grinding cell. Used in conjunction with an automated loading and unloading system, the workpieces pass through the machine without interruption.
    • Cutting tool grinding machines

        • DRILLMAT

        • Grinding twist drills from solid blanks

          The DRILLMAT 3000 cutting tool grinder is the ideal JUNKER technology for grinding twist drills made of HSS or carbide. Three base variants allow individual adaptation to satisfy the most diverse requirements in twist drill production. The individual machine structure guarantees the highest possible efficiency for the production of any size series. JUNKER offers a sophisticated grinding solution for mass production, from machining the blank through to the finished twist drill.

          Grinding twist drills with DRILLMAT means:
          • Grinding flutes, backs and cutting geometry in one clamping
          • Grinding the flutes and ridges in one bushing, hence creating a stable support
          • Up to four grinding wheels can be mounted on the grinding spindle at the same time (corundum or diamond grinding wheels)
        • EJ series

        • External cylindrical grinding and plunge-cut external cylindrical grinding

          The EJ series offers grinding solutions for external cylindrical grinding and plunge-cut external cylindrical grinding. The EJ machines are available with a technology package for HSG grinding either with CBN abrasives or with corundum grinding wheels. The EJ product group is able to handle applications ranging from the automotive industry and its suppliers to mechanical engineering and the electrical industry.

          EJ external cylindrical grinding machines

          The EJ 10, EJ 30, EJ 50 und EJ 70 models are cylindrical grinding machines for external cylindrical grinding in the straight infeed of cylindrical parts using plunge-cut and oscillating grinding. The external cylindrical grinding machines are for grinding diameters, tapers and chamfers.

          EJ plunge-cut external cylindrical grinding machines


          The EJ 11, EJ 31 and EJ 51 models feature a pivoting X-axis, which expands their application options by plunge-cut grinding. The plunge-cut external cylindrical grinding machines are for grinding diameters, shoulders, tapers and chamfers.
        • FLUTEMAT

        • Grinding flutes with FLUTEMAT

          FLUTEMAT, the highly-productive machine concept grinds flutes in all types of HSS cutting tools. Straight and spiral flutes and spiral points are ground with maximum precision thanks to this highly-productive machine concept.

          Grinding corundum flutes


          The grinding is performed with corundum grinding wheels. Up to 2 grinding wheels can be mounted on the grinding spindle. The height and horizontal adjustment, as well as the axial infeed of the grinding wheels and the swivel movements and workpiece drive are CNC-controlled.

          Benefits
          • Low investment costs
          • Ongoing operating costs reduced
          • Personnel and maintenance costs minimised
        • GRINDSTAR

        • Grinding machine replaces lathe machining

          The GRINDSTAR machine concept replaces turning operations with dressing-free, high-speed plunge-cut grinding. This can mean enormous savings, particularly when dealing with large production volumes.

          To do this, the GRINDSTAR actually incorporates two different machining processes:

          Plunge-cut/profile grinding and parting off/longitudinal grinding. The main synergy effect lies in the combination of both processes in a single clamping setup.

          Advantages of the GRINDSTAR grinding machine
          • Grinding directly from bar material
          • Machine availability over 96%
          • No more long continuous chips that get entangled in the machine
          • No clamping impressions on your workpieces
          • No cut-off burrs at the workpiece centre as is typical with turning
          • Easily g rinds difficult-to-machine materials such as high-speed steel, ceramics or carbon fibre rods.
          • Extremely low cycle times thanks to the use of a profile grinding wheel for the plunge-cut grinding of the entire workpiece contour. And the GRINDSTAR can handle just about any workpiece shape that had required turning until now.
        • JUMAXIMAT

        • Complete grinding of cutting tools

          Cutting tool grinding with JUMAXIMAT means flexible and productive complete machining with optimised precision. The highly-productive JUMAXIMAT grinds cutting tools (Ø 6-32 mm) made of HSS or HM. The abrasives are corundum or CBN for HSS tools and diamond grinding wheels for tungsten carbide tools.

          Convincing grinding technology

          Precision tools are fully machined from solid blanks. The tools are ground either unsupported or have a tailstock support. A steady can be used for support if necessary.
          Up to 4 grinding wheels can be mounted on the grinding spindle. The grinding spindle head can be swivelled 53° to the left and 90° to the right. The height and horizontal adjustment, as well as the axial infeed of the grinding wheels
          and the swivel movements and workpiece drive are CNC-controlled.
        • JUMINIMAT

        • Complete grinding of cutting tools

          The JUMINIMAT is a machine concept with integrated loading system for the flexible and productive grinding of cutting tools (Ø 1-8 mm) made from HSS or carbide. The abrasives are corundum or CBN for HSS tools and diamond grinding wheels for tungsten carbide tools.

          Convincing grinding technology


          Precision tools are fully machined from solid blanks. The tools are ground either unsupported or have a tailstock support. A swivelling steady can be used for support if necessary. The abrasives are corundum or CBN for HSS tools or diamond grinding
          wheels for tungsten carbide tools.
          Up to 4 grinding wheels can be mounted on the grinding spindle. The grinding spindle head can be swivelled 53° to the left and 105° to the right. The height and horizontal adjustment, as well as the axial infeed of the grinding wheels and the swivel movements and workpiece drive are CNC-controlled.
        • JUPITER

        • Centerless cylindrical grinding

          At JUPITER, grinding means less cylindrical grinding, with CBN too on request. JUNKER combines this cylindrical grinding method with CBN wheels to create significant productivity advantages, especially with large batch sizes. This is coupled with the simultaneous abrasion along the entire grinding wheel width, which ensures considerably reduced machining times for both large and small-scale production.

          The JUPITER grinding principles


          There are two principles for less grinding: feed-through grinding and plunge-cut grinding. JUPITER can achieve both principles.

          Feed-through grinding applications:


          Bolts and bearing supports, large rings, smaller rings, piston components (e.g. for compressors), shafts with constant diameter, piston rods (e.g. for shock absorbers), small pistons for hydraulic and injection systems, precision wires and rods, piston bolts.

          Plunge-cut grinding applications:


          Rotor shafts, gearbox parts, bearing surfaces of camshafts, pipe components for composite camshafts, cardan joints, needle components for injuction systems, valve shanks, spherical rollers.

          The JUPITER 200, JUPITER 250 and JUPITER 500 come available with a full or partial enclosure.
        • JUSTAR

        • The versatile grinding center

          The JUSTAR grinding center is versatile, flexible and highly productive. The JUSTAR is the perfect machine for the complete grinding of a wide array of high-precision cutting tools of all types. It offers maximum flexibility and high output, as well as a practical programming interface.
          • Complete grinding from bar stock
          • Fully-automatic grinding wheel changer
          • Technological world premiere: unique coolant nozzle system
          • Intelligent gauging equipment
          • Combination profiling system
        • NAJ VII / VIIa

        • Grinding circular saw blades

          The NAJ VII / VIIa CNC flute grinding machine grinds the peripheral toothing on circular saw blades from solid blanks in package clamping. No matter whether the tooth profile has even or uneven tooth height - the NAJ machine delivers perfect quality with the oscillating high-performance longitudinal grinding process. Grinding peripheral toothing with NAJ means perfect quality with astounding productivity.

          Benefits
          • 6 CNC-controlled axis paths
          • High stock removal rates thanks to JUNKER's tried and proven high-performance grinding with the grinding wheels operating at high peripheral speed
          • Automatic, electronic balancing of the grinding wheel in the automatic cycle in a matter of seconds (optional)
          • CNC-profiling of the grinding wheel
          • Grinding of all technically feasible tooth profiles
          • JUKOMET precision-bedded, high-performance spindle system
          • Eco-friendly with suction system and electrostatic cleaning of the oil mist
        • PLATEMAT

        • Grinding indexable inserts

          The PLATEMAT from JUNKER has redefined the grinding of indexable inserts. In indexable insert production, mass production in particular, this high-performance grinding machine is able to achieve enormous productivity increases and improved cutting edge quality with ease.

          The PLATEMAT grinds indexable inserts in most ISO geometries, special geometries also too verification. JUNKER circumferential grinding creates a host of new potentials, e.g. convex and above all concave geometries for innovative inserts and new developments in indexable inserts.

          JUWOP/SG software


          With the interaction of the machine axes and the controller in combination with the JUWOP/SG software package, the PLATEMAT also provides the best prerequisites for maximum precision machining of indexable inserts.
          • Programming of workpiece contours
          • Definition of grinding operations on indexable inserts
          • Calculation of the CNC grinding program
          • Simulation in 3D (JUWOP/VG)
        • QUICKPOINT Blank

        • Off the rack blank production

          The QUICKPOINT 3000 Blank is the ideal solution for blank production in rotationally symmetrical cutting tools. All steps, from feeding the raw material rod to beveling, supporting the workpiece, contour grinding, cutting and correct depositing are fully automatic. Maximum productivity is ensured by the QUICKPOINT High Speed Grinding (HSG) process.

          Short cycle times


          The new JUNKER QUICKPOINT 3000 Blank machine concept satisfies the market requirement for the shortest cycle times and the abolition of the semi-finished stock in every regard. Making just-in-time production a reality.

          Benefits
          • Minimum cycle time due to combining all production steps
          • Increase in quality due to machining everything in one clamping
          • Maximum productivity using the QUICKPOINT HSG process
          • High level of autonomy due to complete automation
          • Maximum flexibility due to maximum retooling convenience
        • QUICKPOINT

        • High-performance grinding

          This grinding technology is both versatile and incredibly efficient. QUICKPOINT delivers up to 600% more performance than conventional grinding methods, especially hard metal machining.

          The QUICKPOINT principle

          Grinding with QUICKPOINT is high-speed OD grinding with only punctiform grinding contact in the finish-grinding area. QUICKPOINT uses an extremely low-wear CBN or diamond grinding body that is only a few millimetres wide. The tilt of the grinding body axis relative to the horizontal workpiece axis creates a relief angle that reduces the contact zone between the grinding body and the workpiece from a contact line to a contact point.

          Complete machining in one clamping

          QUICKPOINT OD grinding machines can be expanded through the integration of modified Junker grinding modules with several grinding wheels for complete machining. It is thus possible to perform plunge-cut grinding, thread grinding, form grinding, non-cylindrical grinding, etc. of components in one clamping
        • RELIEF EXPERT

        • Relief measurement with RELIEF EXPERT

          The measuring device for precise relief measurement of the thread and chamfer on practically every type of straight or spiral-fluted or conical cutting tools. The RELIEF EXPERT is used to measure tap drills, thread formers and thread miling cutters.

          The measurement options in detail
          • Relief measurement on the thread flanks, one or both sides
          • Relief measurement on the outer thread diameter
          • Relief measurement on the chamfer

          Benefits of CNC control
          • No chasing leaders required
          • Fully-automatic measurement process
        • TAPOMAT

        • Grinding thread and chamfer with TAPOMAT

          The TAPOMAT CNC grinding machine is for grinding tap drills and thread formers. TAPOMAT is the ideal grinding solution for efficient thread cutting and chamfering in one clamping. Due to its high flexibility and extremely short tooling times, it is ideally suited for grinding small batches as well as for mass production. Particular flexibility is provided by the CNC-controlled relief movement. The permanent dimensional stability permits reliable production with low manpower.

          TAPOMAT is used for grinding
          • Standard tap drills
          • Tapered pipe tap drills
          • Nut tap drills
          • Thread formers
          • Special tap drills
          • Multi-tooth/single tooth grinding, with or without chamfer grinding
          • Right-hand or left-hand thread
          • Straight or helical flutes
          • Nut tap drills with or without pitch offset
      • Cylindrical grinding machines

          • EJ series

          • External cylindrical grinding and plunge-cut external cylindrical grinding

            The EJ series offers grinding solutions for external cylindrical grinding and plunge-cut external cylindrical grinding. The EJ machines are available with a technology package for HSG grinding either with CBN abrasives or with corundum grinding wheels. The EJ product group is able to handle applications ranging from the automotive industry and its suppliers to mechanical engineering and the electrical industry.

            EJ external cylindrical grinding machines


            The EJ 10, EJ 30, EJ 50 und EJ 70 models are cylindrical grinding machines for external cylindrical grinding in the straight infeed of cylindrical parts using plunge-cut and oscillating grinding. The external cylindrical grinding machines are for grinding diameters, tapers and chamfers.

            EJ plunge-cut external cylindrical grinding machines


            The EJ 11, EJ 31 and EJ 51 models feature a pivoting X-axis, which expands their application options by plunge-cut grinding. The plunge-cut external cylindrical grinding machines are for grinding diameters, shoulders, tapers and chamfers.
          • GRINDSTAR

          • Grinding machine replaces lathe machining

            The GRINDSTAR machine concept replaces turning operations with dressing-free, high-speed plunge-cut grinding. This can mean enormous savings, particularly when dealing with large production volumes.

            To do this, the GRINDSTAR actually incorporates two different machining processes:

            Plunge-cut/profile grinding and parting off/longitudinal grinding. The main synergy effect lies in the combination of both processes in a single clamping setup.

            Advantages of the GRINDSTAR grinding machine
            • Grinding directly from bar material
            • Machine availability over 96%
            • No more long continuous chips that get entangled in the machine
            • No clamping impressions on your workpieces
            • No cut-off burrs at the workpiece centre as is typical with turning
            • Easily g rinds difficult-to-machine materials such as high-speed steel, ceramics or carbon fibre rods.
            • Extremely low cycle times thanks to the use of a profile grinding wheel for the plunge-cut grinding of the entire workpiece contour. And the GRINDSTAR can handle just about any workpiece shape that had required turning until now
          • JUCENTER

          • Cost-effective grinding

            The high-performance CBN grinding machine JUCENTER enables you to grind crankshafts, gearshafts and camshafts in one machine with the shortest possible cycle time. The JUCENTER combines two machines with complementary machining potentials into one. Instead of linking separate grinding machines for various machining tasks, the two grinding processes, i.e. grinding bearings and cams on camshafts, occur in two separate clampings on a single machine. This concept creates a wealth of benefits, the result being extremely cost-efficient grinding with optimised accuracy.

            The technical concept


            JUCENTER enables two machining technologies on one machine: Station 1 is usually for controlling cylindrical grinding with grinding wheel set (e.g. grinding bearing seats on camshafts or main bearings on crankshafts). Station 2 accommodates the non-cylindrical grinding process (e.g. cam profiles) or pin chase grinding (e.g. pin bearings).
          • JUCENTRIC 500

          • Grinding without workpiece deflection

            The JUCENTRIC 500 is characterized by extremely short cycle times and outstanding accuracy. The clamping set-up between centers retains the relation to the centerline when grinding shafts and pipes. At the same time, the support rail and regulating wheel guarantee perfect support.

            Perfectly supported


            The workpiece is positioned and clamped between centers. Grinding is carried out while clamped; the CNC-controlled support rail, the regulating wheel and the grinding wheel are evenly readjusted until the finished dimension is reached. This unique, ingenious procedure is currently patent pending.

            Driving is carried out via a driver on the C-axis of the workhead. Upon the completion of grinding, the grinding gap opens and the workpiece is removed.
          • JUFLEX

          • Complete grinding made easy

            The JUFLEX is the ideal solution for the complete grinding of small workpieces typical of passenger cars. Grind all shaft types, including camshafts or gearshafts, using CBN or conventional technology.

            The machine concept


            For the JUFLEX, two modules of the 3000 series have been merged to create one grinding machine (machine cell) - two machine bases, two hoods, but one control system. This gives rise to a substantial cost advantage without compromising performance. This allows the workpiece to be ground synchronously without risk of collision using two grinding carriages in two grinding processes, i.e. almost double the output volume. This naturally results in benefits due to the significantly reduced space and investment requirement compared to two single machines.
          • JUMAT

          • CBN OD grinding

            Grinding with CBN wheels is one of JUNKER's core areas of expertise. JUMAT external cylindrical grinding machines can be used in individual or combined grinding operations in the straight or angular infeed process to grind:
            • Diameters
            • Shoulders
            • Plunges, flutes
            • Tapers
            • Chamfers

            Cylindrical and flute grinding on the JUMAT

            JUMAT's versatility is proving its worth in the automotive industry and with its suppliers. It is also used for applications in mechanical engineering, in the electrical industry and in information technology. The JUMAT is a cylindrical grinding machine you can use to grind practically any type of shaft. Flute grinding is another talent of the JUMAT CBN cylindrical grinding machine.
          • JUSTAR

          • The versatile grinding center

            The JUSTAR grinding center is versatile, flexible and highly productive. The JUSTAR is the perfect machine for the complete grinding of a wide array of high-precision cutting tools of all types. It offers maximum flexibility and high output, as well as a practical programming interface.
            • Complete grinding from bar stock
            • Fully-automatic grinding wheel changer
            • Technological world premiere: unique coolant nozzle system
            • Intelligent gauging equipment
            • Combination profiling system
          • Lean Selection

          • Functional and economical grinding

            With the Lean Selection, JUNKER offers an array of standard machines – easy to use, extremely cost-effective and of course with JUNKER’s usual high standard of product quality and precision!

            Cost reduction as a matter of principle


            Users demand a lot from their grinding machines today: short and easy set-up, versatile and flexible use, good accessibility, high precision and, last but not least, simple operation. The JUNKER Lean Selection grinding machines were designed with these things in mind. They are easy to use and feature pictograms that make programming a snap. As typical JUNKER machines, they can produce with CBN and diamond abrasives and are optimized for minimal set-up times. The JUNKER Lean Selection has many areas of application. Among other things, it is ideal for use by contract manufacturers, small suppliers and medium-size companies and is perfect for the manufacture of both single parts and series.

            Lean Selection allround


            Economical ID/OD grinding machine for demanding grinding requirements. The Lean Selection allround features a freely programmable B-axis, as well as a full protective cover. Works with corundum, CBN or diamond abrasives. Perfect for manufacturing single parts or small series.

            Lean Selection speed


            Efficient and economical high-speed grinding machine. The Lean Selection speed grinds shaft-type parts, as well as cutting tool blanks extremely cost-effectively. Works with CBN or diamond abrasives. Perfect for small to medium-sized series in both single-shift and multi-shift operation.

            Lean Selection cam


            Highly productive and flexible camshaft grinding machine. The Lean Selection cam combines precision and efficiency and is ideally suited for manufacturing medium-sized to large series. Works with CBN abrasive.

            Lean Selection shaft


            The Lean Selection shaft is an economical machine concept for machining of grooves and flat surfaces as well as diameter machining with grinding wheels sets. It works in combined operations in the straight and/or in different angular infeed grinding tasks.
          • QUICKPOINT

          • High-performance grinding

            This grinding technology is both versatile and incredibly efficient. QUICKPOINT delivers up to 600% more performance than conventional grinding methods, especially hard metal machining.

            The QUICKPOINT principle


            Grinding with QUICKPOINT is high-speed OD grinding with only punctiform grinding contact in the finish-grinding area. QUICKPOINT uses an extremely low-wear CBN or diamond grinding body that is only a few millimetres wide. The tilt of the grinding body axis relative to the horizontal workpiece axis creates a relief angle that reduces the contact zone between the grinding body and the workpiece from a contact line to a contact point.

            Complete machining in one clamping


            QUICKPOINT OD grinding machines can be expanded through the integration of modified Junker grinding modules with several grinding wheels for complete machining. It is thus possible to perform plunge-cut grinding, thread grinding, form grinding, non-cylindrical grinding, etc. of components in one clamping.
          • SYNCHRO

          • Grinding with multiple wheels

            SYNCHRO 4000, the multi-wheel grinding machine simultaneously grinds all main bearings in the plunge-cut process using multiple wheels. The SYNCHRO 4000 achieves optimum results thanks to its highly-precise grinding spindle with spindle bearing, as well as the high dimensional accuracy guaranteed by the in-process contact measurement.

            Benefits
            • Highly-precise grinding spindle with spindle bearing
            • High dimensional accuracy with in-process measurement
        • Double-wheel surface grinding machine

              • SATURN

              • Double-wheel surface grinding with conventional or CBN technology

                The SATURN double-wheel surface grinding machine is for grinding con rods, cams, rolling elements and many other workpieces in rotation, oscillating or parallel grinding processes. The SATURN offers the efficiency required for large series production and the low tooling effort beneficial in small series production with a simple transport wheel change mechanism.

                Grinding with vertical wheels


                The SATURN double-wheel surface grinding technique involves two vertical grinding wheels grinding the parallel outer sides of the workpiece at the same time. The grinding wheels are set against each other at a slightly conical angle, so that as it passes from top to bottom, the workpiece retains its final dimension only in the bottom section of the grinding path. Because the workpieces are fed vertically between the grinding wheels, the bearing weight of the workpiece does not affect the grinding result. What’s more, the cooling lubricant can simply drain downwards together with the removed material.
          • Hard turning grinding machines

                • HARDPOINT

                • All-rounder for superfinishing

                  The HARDPOINT machine guarantees cost-optimised production processes whenever a combination of hard turning and grinding is required. The different versions of the HARDPOINT machine type are able to finish hardened and unhardened rotationally symmetric components. This means turning, grinding, drilling and reaming on one machine and in one clamping. Version-dependent, with workpieces being transferred to another machining unit (multilateral machining).

                  Typical workpieces are from:
                  • Injection technology
                  • Engine technology
                  • Mechatronics
                  • Medical technology
            • Non-cylindrical grinding machines

                • JUCAM

                • Grinding camshafts with JUCAM

                  With its JUCAM CBN non-circular grinding machines, JUNKER offers a multi-purpose solution for the complete machining of camshafts. And the JUCAM is also able to grind single cams. The type range covers all cam profiles:
                  • Cylindrical
                  • Concave/convex
                  • With/without chamfers
                  • With/without radius
                  • With tangent
                  • Polygon/elliptical

                  Depending on the machining method and the required yield, platforms and grinding spindle head versions are individually configured and installed for the various JUCAM types.

                  Pre- and finish grinding in one clamping


                  JUCAM non-cylindrical grinding machines mean: grinding cams, bearings, ends, thrust bearing shoulders and camshaft adjustment elements in one clamping. The use of CBN grinding wheels permits both pre-grinding and precise finish grinding. Besides the automotive industry, these machines are also used in the textile and pump sector and for making cutting tools for deep-hole drills
                • JUCENTER

                • Cost-effective grinding

                  The high-performance CBN grinding machine JUCENTER enables you to grind crankshafts, gearshafts and camshafts in one machine with the shortest possible cycle time. The JUCENTER combines two machines with complementary machining potentials into one. Instead of linking separate grinding machines for various machining tasks, the two grinding processes, i.e. grinding bearings and cams on camshafts, occur in two separate clampings on a single machine. This concept creates a wealth of benefits, the result being extremely cost-efficient grinding with optimised accuracy.

                  The technical concept


                  JUCENTER enables two machining technologies on one machine: Station 1 is usually for controlling cylindrical grinding with grinding wheel set (e.g. grinding bearing seats on camshafts or main bearings on crankshafts). Station 2 accommodates the non-cylindrical grinding process (e.g. cam profiles) or pin chase grinding (e.g. pin bearings).
                • JUCRANK

                • Crankshaft grinding made easy

                  Oscillating grinding for all crankshafts. With its JUCRANK pin chasing grinding machines, JUNKER offers a multi-purpose solution for the complete grinding of crankshafts. The range covers all crankshaft types, from single-cylinder to twelve-cylinder. Depending on the processing type and requested release volume platforms and grinding spindle head versions are individually configured and installed for the various JUCRANK types.

                  Pre- and finish grinding in one clamping


                  JUCRANK CBN pin chasing grinding machines solve practically every grinding task in crankshaft grinding. Main bearings (cylindrical, convave, convex) and pin bearings (cylindrical, spherical, concave and convex) can be ground in a single clamping. Hardened radii can also be ground. JUNKER also offers practically every combination with other types of grinding. Depending on the machine type combination, locking collars, flanges and pivots can be machined using other JUNKER grinders.
                • SYNCHRO

                • Grinding with multiple wheels

                  SYNCHRO 4000, the multi-wheel grinding machine simultaneously grinds all main bearings in the plunge-cut process using multiple wheels. The SYNCHRO 4000 achieves optimum results thanks to its highly-precise grinding spindle with spindle bearing, as well as the high dimensional accuracy guaranteed by the in-process contact measurement.

                  Benefits
                  • Highly-precise grinding spindle with spindle bearing
                  • High dimensional accuracy with in-process measurement
              • Profile/flute grinding machines

                  • JUSTAR

                  • The versatile grinding center

                    The JUSTAR grinding center is versatile, flexible and highly productive. The JUSTAR is the perfect machine for the complete grinding of a wide array of high-precision cutting tools of all types. It offers maximum flexibility and high output, as well as a practical programming interface.
                    • Complete grinding from bar stock
                    • Fully-automatic grinding wheel changer
                    • Technological world premiere: unique coolant nozzle system
                    • Intelligent gauging equipment
                    • Combination profiling system
                  • NAJ I/B

                  • Grinding flutes with NAJ IB

                    The NAJ IB CNC flute grinding machine is the ideal solution for flute grinding on pump pistons or similar workpieces. This is how the JUNKER high-speed grinding process, with the CBN grinding wheels working at an extremely fast peripheral speed, guarantees highly-precise dimensional accuracy, surface quality and the shortest conceivable cycle times.

                    Benefits
                    • Fully-automated feed system, eliminating the need to handle the workpiece during transport in and out
                    • No adjustment in the machine for retooling
                    • High utilisation ratio thanks to short retooling times and extremely low maintenance requirement
                    • Factory-compliant, simple operation and easy, safe working procedures
                    • Freely adjustable cutting speed setting