MacroJunior & MacroCombi
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MacroJunior & MacroCombi … gives extreme flexibility … one chuck, two systems … reduces setting-up times. … ensures precision and quality … is suitable for automatic changing with System 3R’s automation program. MacroCombi profitability in tool manufacturing is determined largely by the extent to which machine downtime can be minimised. A reference system which allows presetting away from the machine – followed by super-rapid tooling-up in the machine when the time comes – is a highly efficient way of working. MacroCombi is such a reference system. The MacroCombi system offers extreme flexibility both in electrode production and in die-sinking EDM. Small and large electrodes in the same chuck – without adapter elements! Spindle chuck MacroCombi The MacroCombi chucks accept two completely different types of electrode holder. Both Macro with its immovable stability and precision, and MacroJunior with its highly economical holders. The limitations are few, the possibilities many. + Clamping force – 5000 N + Fixed index positions Macro 4x90° and MacroJunior 3x120° + Required air pressure, pneumatic chuck – 6±1 bar + Recommended tightening torque, manual chuck – 4 Nm Drawbar – Macro Drawbar – MacroJunior Pallet/reference element/ holder Workpiece 10 System 3R tooling for elec

MacroJunior & MacroCombi – Chucks MacroJunior pallet/holder/reference element Macro & MacroJunior pallet/holder/reference element Spindle chucks Article number machine-adapted machine-adapted Macro pallet/holder/reference element Lathe chuck Article number Macro or MacroJunior pallet/holder/reference element Drawbar MacroJunior pallet/holder/reference element Drawbar Table chucks Article number Built-in chucks Article number 11 System 3R tooling for electrode manufacturing & EDMing

MacroJunior – Chucks Manual chuck, MacroJunior, 3R-400.34 Manual chuck, MacroJunior, 3R-400.24-11 For mounting in the machine spindle by means of 3R-A11489, or on the machine table by means of 3R-A19724 or alternatively 3R-A21944, or in a fixture. For mounting on machine spindle. • Required drawbar 3R-405.11 • Fixed index positions 3x120° • Weight 1.6 kg. • Required drawbar 3R-405.11 • Fixed index positions 3x120° • Weight 0.8 kg. Pneumatic chuck, MacroJunior, 3R-410.1-M For mounting on the machine spindle or in a fixture on the machine table. • Required drawbar 3R-405.11 • Required air...

MacroCombi – Chucks Manual chuck, MacroCombi, 3R-460.34 For mounting in the machine spindle by means of 3R-A11489, or on the machine table by means of 3R-A19724 or alternatively 3R-A21944, or in a fixture. • Required drawbar for Macro holder 3R-405.16 • Required drawbar for MacroJunior holder 3R-405.11 • Weight 1.8 kg  Pneumatic chuck, MacroCombi, 3R-460.83-2 Pneumatic chuck, MacroCombi, 3R-460.86-2 Pneumatic chuck for mounting directly on the machine spindle. All X/Y/Z references in hardened and ground steel. Pneumatic chuck for mounting directly on the machine spindle. All X/Y/Z...

MacroCombi – Chucks Manual lathe chuck, MacroCombi, 3R-460.32 Manual chuck, MacroCombi, 3R-460.31-5 For mounting on a lathe taper. Chuck in HighPerformance version. Five ground surfaces for vertical or horizontal mounting on the machine table. • Required drawbar for Macro holder 3R-405.16 • Required drawbar for MacroJunior holder 3R-405.11 • Weight 2.0 kg. • Required drawbar for Macro holder 3R-405.16 • Required drawbar for MacroJunior holder 3R-405.11 • Weight 3.5 kg. Manual chuck, MacroCombi, 3R-460.37 Pneumatic chuck, MacroCombi, 3R-460.46 The locking mechanism is operated by a removable...

MacroJunior – Chuck adapter Manual chuck adapter 90°, Junior-Junior, 3R-467.9-1 For horizontal mounting of MacroJunior holders. Screw locking. Note: For EDM machining only. • Fixed index positions 3x120° • Weight 0.6 kg. MacroJunior – Pallets & Holders MacroJunior or MacroCombi chuck Drawbar Article number Sintered pallet Ø25 mm MacroJunior Sintered pallet Ø25 mm MacroJunior parallel ground Collet chuck ETS10, MacroJunior Collet chuck ER16, MacroJunior Holder, MacroJunior 15 System 3R tooling for electrode manufacturing & ED

MacroJunior – Pallets & Holders Pallet 25 mm, MacroJunior, 3R-491E Ground pallet 25 mm, MacroJunior, 3R-491E-HP For copper or graphite electrodes. Top and bottom faces parallel-ground to within 0.002 mm. NOTE: The electrode is installed with screw and adhesive assembly, or alternatively brazing. NOTE: The electrode is installed with screw and adhesive assembly, or alternatively brazing. • Adapted for automatic changing • Supplied in sets of 30. • Adapted for automatic changing • Supplied in sets of 30. Holder with journal , 3R-461.1E-GA Used in combination with 3R-491E when electrode blanks...

MacroJunior – Holders Holder 25 mm, MacroJunior, 3R-461-8.8-HP Holder with taper, 3R-465.1E-A Upper and lower faces ground parallel within 0.002 mm. Locating pin Ø8.8 mm (0/0.05 mm). The taper is machined suitably for attaching very small electrodes. To be mounted on 3R-491E with three screws MFT4x12. • Not intended for automatic changing • Supplied singly. Collet chucks, MacroJunior 3R-469-10 • For collets ETS10 • Electrode sizes 0.1-2 mm • Building-in height 47 mm • Weight 0.1 kg. 3R-469-16 • For colles ER16 • Electrode sizes 0.5-10 mm • Building-in height 59.5 mm • Weight 0.2 kg. 17...

Blanks mounted on MacroJunior holders for the manufacture of electrodes. The stock range is matched to local preferences and ways of working. This applies to electrode materials, different grades of graphite and copper, and to dimensions. Contact your local 3R representative for further information. The Vällingby factory can supply holders with factory-mounted copper blanks in sets of ten, as shown in the table. Dimensions Round blank Ø10x50 mm Round blank Ø12x50 mm Round blank Ø16x50 mm Round blank Ø22x50 mm Round blank Ø26x50 mm Round blank Ø32x50 mm Round blank Ø40x50 mm Round blank...