Section 1 - MMA welding General information and choice criteria
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1794-030 3551-024 1877-051 Section 1 - MMA welding General information and choice criteria Scheme of a manual installation for welding with coated electrode Power source direct or alternating current (single or three-phase supply) Mask Power source Coated electrode Workpiece Primary cable Secondary cables Earth clamp The transfer of metal coated electrode Thicknesses for at welding, butt welding and llet welding (mm) Metallic core Crater Penetration Slag of the Protection weld bead atmosphere Choice of the intensity of current Coating Electrode diameter (mm) Average intensity for rutile electrodes (A) 1.6 1.6 40 4 Molten pool 55 2.5 70 3.2 110 4.0 160 > 8.0 5.0 200 > 10.0 Weld bead 2.0 6.0-10 Workpiece 2.0 2.0-3.0 3.0-5.0 Metallic drops in transit in the arc 6.3 290

3 specic MMA power source features: • Arc Force device gives a more stable arc in all welding conditions. • Hot Start device allows an easy arc striking. • Antistick device prevents from accidental electrode short circuiting. Criteria choice for MMA power sources all DC welding current Name Main power supply No load voltage VRD PFC Current range DC Electrode diameter Weight SAXO 1300G Single phase 69 V Inverter P No No 10 – 130 A 1.6 – 3.2 mm 3.5 kg SAXO 1600G Single phase 87 V Inverter P No No 5 – 160 A 1.6 – 4.0 mm 7 kg PRESTO 140 PFC Single phase 48.4 V Inverter P No Yes 5 – 140 A 1.6 –...

1 - MMA welding Portable Inverters for DC welding The SAXO range has been designed for light maintenance and repair applications. The weight and size has been reduced whilst maintaining a high quality welding performance. SAXO 1300G / SAXO 1600G Ultra light inverters for fast and quality work. 2008-722 2010-007 Features: • Lightweight and compact. • Hot start function & anti-sticking device. • Supplied ready to use. • Accommodates all electrode types (except Cellulosic). • Generator compatible. SAXO 1300G Power supply single phase 50/60 Hz SAXO 1600G 230 V (±15%) 230 V (±20%) Primary...

The PRESTO PFC range is fitted with the new SAF-FRO inverter technology. The PFC controller is the technical solution to achieve conformance to the limitation of the harmonic current for equipment connected to public low voltage network which is now mandatory in Europe (EN 61000 -3-12 standard). PFC results in lower effective current consumption at the same output welding power, also maximising electronic component lifetime. • Improved generator compatibility with PFC controller addition. • Hot start and anti-stick functions. • Reduced noise. Intelligent cooling fan. • Ergonomic handles for...

1 - MMA welding Portable DC Inverters PRESTO PRO and VRD welding machines have been designed to meet the most demanding conditions for on-site welding applications, offering reliable operation and high duty cycle. Each machine features the special Voltage Reduction Device (VRD) for increased safety when used in mines, shipyards and petrochemical plant. 2010-080 Features: • Rugged on site concept, • Hot Start function and anti-sticking device, • Arc Force regulation on front panel, • Suitable for rutile, basic and cellulosic electrodes, • TIG lift+ device for PRESTO 190 PRO & 220 VRD,...

1 - MMA welding MMA DC rectiers RODARC 250 DC RODARC 400 DC RODARC 450 DC Ideal for all types of coated electrodes up to 4.0 mm. Ideal for all types of coated electrodes up to 6.3 mm. Ideal for all types of coated electrodes up to 6.3 mm. Features: • Ideal for rutile, basic, stainless steel and special electrode. • Fan cooling. • Mechanical amperage adjustment. • Heavy duty undergear as standard. Features: • Mechanical amperage adjustment. • High duty cycle. • Fan cooling. • Heavy duty undergear as standard. Features: • Robust design and performance. • Mechanical amperage adjustment. • High...

1 - MMA welding MMA DC rectiers The SAFEX power source range offers rugged and reliable welding operation for all workshop and on-site applications. Efcient, powerful and user friendly, the SAFEX machines provide both performance and reliability. SAFEX M 340 SAFEX M 450 SAFEX C2 The versatile arc welding machine. Powerful, very easy to maintain and simple to use. Excellent for use on worksites in the most difcult working conditions Features: • Mechanical amperage adjustment. • Heavy duty undergear and lifting bolts ensures full workshop and on-site manœuvrability. Features: • Mechanical...

DC Rectifier machines for welding & gouging (thyristor technology) BUFFALO X - Reliable and of robust design, these machines provide excellent and consistent service in demanding on-site and workshop conditions. BUFFALO X provides both MMA and Gouging electrode capability and MIG and TIG process options using addition add-on equipment. • Exceptional multi-use and versatile equipment, • Digital display, • Arc dynamism function for improved arc stability, • Built in characteristic's selector • In option Voltage Reduction Device (VRD) for greater safety, • In MIG mode (CV) BUFFALO X sets will...