Macro Junior, a reference system tailor made for a modern EDM technology

Automatic electrode changing and unmanned production.
The patented and compact Macro Junior system is intended mainly for small electrodes.
Unlike other Macro systems, in Macro Junior the chuck, not the electrode holder, has positioning tongues.
A design which means that the electrode holders can be supplied at a very attractive price.
The design with three reference points in the X-, Y- and Z-directions means that, despite any tolerance variations in the holder, the coupling repeats very accurately when it is locked with its screw connection.

click on photo for more details

Features:

Clamping force 5.000N
Repeatability <0.002mm
High accuracy
High stability
Max. flushing pressure 15 bar

Application pictures

Brochure junior

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3R-400.24-11 Manual chuck

For mounting on spindle with 3R-SP15275
Fixed index positions 3×120°
Required drawbar 3R-405.11
Weight 0.8 Kg

Drawing chuck

3R-400.32 Manual lathe chuck

For mounting on a lathe taper
Fixed index positions 3×120°
Required drawbar 3R-405.11
Weight 1.2 Kg

Drawing chuck

3R-400.34 Manual chuck

For mounting in the spindle with 3RA11489
For mounting on the table with 3R-A19724
Fixed index positions 3×120°
Required drawbar 3R-405.11
Weight 1.2 Kg

Drawing chuck

3R-410.31-5 Manual chuck

Five ground surfaces for vertical or horizontal mounting
Fixed index positions 3×120°
Required drawbar 3R-405.11
.
Weight 3.5 Kg

Drawing chuck

3R-SP19143 Manual chuck RS

Stainless steel chuck with flange Ø22×6 mm
Axial locking screw with channel for flushing
Fixed index positions 3×120°
Weight 0.8 Kg

Drawing chuck

Macro junior in combi spindle of EDM machine

3R-402.1 MacroJunior manual chuck

Clamping force 4 kN
Fixed index positions 3×120°
Required drawbar 3R-405.21RS
Tightening torque 4 Nm
Weight 1.2 kg

Drawing adapter

3R-406.9 MacroJunior manual chuck adapter

Horizontal mounting in Macro system
Tightening torque 6 Nm
Clamping force 6 kN
Fixed index positions 3×120°
Weight 1.2 kg

Drawing adapter

3R-422.2 MacroJunior manual chuck adapter

Axial locking screw
Tightening torque 7 Nm
Clamping force 6 kN
Fixed index positions 3×120°
Weight 1.8 kg

Drawing adapter

3R-466.4033 Macro-MacroJunior manual chuck adapter

Precision-cast Macro reference element
Adapted for automatic changing
Fixed index positions 3×120°
Weight 1.1 kg

Drawing adapter

3R-467.9-1 Junior pallet 25 mm with manual chuck adapter

For horizontal mounting of pallet
For copper or graphite electrodes
Set of 1 piece
Weight 0.6 kg

Drawing pallet

3R-466.40RS MacroJunior manual chuck adapter

Axial locking screw
Tightening torque 6 Nm
Clamping force 6 kN
Fixed index positions 3×120° and 4×90°
Weight 0.4 kg

Drawing adapter

3R-491E Junior pallet 25 mm

For copper or graphite electrodes
For automatic changing
SET of 30 pieces
.
.

Drawing pallet

3R-491E-HP Junior pallet 25 mm

Pallet grinded within 0,002mm
For copper or graphite electrodes
For automatic changing
.
SET of 30 pieces

Drawing pallet

3R-466.10033 Macro-MacroJunior manual chuck adapters

Adapted for automatic changing
Height 100 mm
Fixed index positions 3×120°
Weight 0.8 kg

Drawing adapter

Macro junior on 5-axis milling machine

3R-469-10 Junior pallet with collet holder ETS10 25mm

ETS10 collet holder
Electrode size 0.1-2 mm
Building in height 43mm
For automatic changing
Weight 0.1 kg

3R-469-16 Junior pallet with collet holder ETS10 25mm

ER16 collet holder
Electrode size 0.5-10 mm
Building height 59.5mm
For automatic changing
Weight 0.2 kg

3R-461-8.8-HP Junior holder 25mm parallel within 0.002 mm

Location pin Ø8.8 mm
For copper or graphite electrodes
Not for automatic changing
Set of 1 piece
.

Drawing pallet

3R-465-LE MacroJunior holder

For electrodes Ø4-8 or <8×18 mm
For copper or graphite electrodes
For automatic changing
.
Set of 5 pieces

Drawing holder

Ready to Run standard electrodes made of copper and graphite

Features:

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.