General presentation ARO, worldwide leader in the area of resistance welding has designed this range of medium-power machines to cover the 4 families of resistance welding: projection, spot, seam and butt welding. With the benefit of the experience gained with the M and MOS ranges, the P series integrates the latest technologies designed for resistance welding including Medium Frequency technology for the most demanding users. Using a single machine frame, 8 "High Performance" transformers (AC or MF), 8 different programmable welding commands, a choice of 5 cylinders and 4 distinct pneumatic...

General presentation (cont'd) Presentation of the medium frequency technology A wide range of optional items of equipment is proposed to complete the basic system: For the frame: 150 mm riser, Stay for machines with an effective length of more than 600 mm. For the resistance welding programmable control: 8 versions of sequences (AR 01, 5T2P 7T8P 10T16P 10T32P 10T32PEC, 10T16PMF 10T16PMO). , , , , , For the pneumatics: Opening/Closing position monitoring (by induction magnetic detector attached to the cylinder profile). For the force monitoring system*: Manual pressure regulation program for Single-stroke...

Spot welding General characteristics: - Tightening force on the electrodes: 740 daN at 6 bar, - Single-stroke cylinder travel range: 100 mm, or double-stroke cylinder travel range: 80+20 mm, - Air throttling, - Parachute and anti-fall system (rapid purge), - Machine equipped with standard shank-holders, - Electrical power supply circuit-breaker, - Electric pedal welding cycle command, - Stay for 800 mm arm, - Effective spacing between arm of 235 to 545 mm by continuous adjustment of the lower table - "A" version of arm and electrode-holder installation as standard, - Electrode-holder upper assembly,...

PA type: - 50 Hz AC single-phase technology - 1000 Hz medium frequency technology Specific options: 400 V/ 50 Hz AC transformers: 90 kVA AC - Effective depths at the cylinder center line: 400/600 mm - Effective depths at the electrode center line: 500/700 mm 400 V/50 Hz MF transformers: - Effective depths at the cylinder center line: - Effective depths at the electrode center line: Arm and Electrode-holder installation: "B" version optional: - Upper arm assembly, - Lower arm with electrode-holder assembly with an effective length of 500 /700 /900 mm. "C" version optional: - Upper arm assembly...

Standard and optional installations OFFSET INSTALLATION Installation offset with respect to cylinder center line Figure A Upper electrode-holder assembly Installation offset with respect to cylinder center line with axial lower electrode-holder Figure B Upper electrode-holder assembly INSTALLATION IN THE CENTER LINE Installation in the cylinder center line Figure C Upper electrode-holder assembly

Standard and special electrodes STRAIGHT CENTERED ELECTRODES STRAIGHT OFFSET ELECTRODES OFFSET INCLINED ELECTRODES standard 23 mm long 34 mm with molybdenum tip with cutene tip made of electrolytic copper for light alloys (24 mm) long made of electrolytic copper for light alloys (35 mm) standard 23 mm double off-centering long 34 mm short 16 mm for two-pin electrode with molybdenum tip with cutene tip (23 mm) standard 23 mm long 34 mm with molybdenum tip standard 23 mm long 43 mm with molybdenum tip with cutene tip SPECIAL ELECTRODES with welding swivel joint without mark long elbowed 78 mm highly...

Projection welding General characteristics: - Single-stage cylinder 740 daN or 1380 daN in double-stage cylinder at 6 bar, - Single-stroke cylinder travel range: 100 mm, - Air throttling, - Platen dimensions 200 mm x 200 mm, - 3 grooves, center distance 63 mm, - Effective spacing between platens: 205 to 515 mm by continuous adjustment of the lower platen, - Effective depth at the cylinder center line: 250 mm, - Program selector, - Machine entirely water-cooled (transformer, secondary junctions, connections for tools), - Welding current intensity adjustment by constant phase-shift or by adaptive...

PB type: - 50 Hz AC single-phase technology - 1000 Hz medium frequency technology Specific options: - 400 V/50 Hz AC transformers: - 400 V/50 Hz MF transformers: Options : - PO-GO position monitor, - Pressure program with manual regulation for Single-Stroke or Double-Stroke cylinders*, - Pressure program with electronic regulation for Single-Stroke or Double-Stroke cylinders*, - Analog pressure sensor*, - Electronic regulation of the welding pressure*, - 250 mm x 250 mm platen, 4 grooves, center distance 63 mm. * Options valid according to choice of certain CPSs, see table page 12. Technical...

Seam welding Seam welding machines: Given the wide range of applications involving seal or "Roll spot" welding, it is difficult to define a range of seam welding machines. However, our Design Office, working in close cooperation with the users, can design and define tools that are the best suited to characteristics of the application. We can nevertheless define a standard machine profile with the following characteristics: General characteristics: - High thermal power and low magnetic saturation 63 kVA transformer, - Duty cycle that can vary between 40 and 100%, - Clamping force at seam wheels:...

PE type machines: - 50 Hz AC single-phase technology 9 Seam welding PE type stationary machine Technical dimensions for PE machines

Butt welding General characteristics: - Machine with 3 cylinders: 2 single-stroke, double-stage cylinders for clamping 900 daN at 6 bar, 1 single-stroke, single-stage cylinder for thrusting 300 daN at 6 bar, - Standard jaw for round 4 to 20 mm diameter, - Bimanual control desk, - Machine entirely water cooled (transformer, junction of the secondaries, jaw-holder), - Adjustment of the welding current intensity by constant phase-shift or by adaptive regulation according to the choice of CPS. Specific options: - Command for 10T16P 10T16PEC or 10T32P type welding, , - Analog force sensor (only with...