Filter
Top Products
Dust, dirt and metal chips will harm any welding machine. It is of particular importance that the air ventilation for
cooling is not disabled.
Prior to welding the joints must be cleaned and dirt, rust, grease and paint removed. Also slag from previous welds
must be completely removed.
Attach earth clamp firmly to work piece, assuring good metal to metal contact. Check that all cables and connectors
are in proper operating condition to ensure proper current conduction.
Place the uncoated end of the electrode into a notch of the electrode holder. With the welding machine a welding
accessory kit, consisting of welding visor and pick hammer, can be purchased. The tinted glass of the welding visor
protects the eye from harmful rays (ultraviolet and infrared rays). The clear glass plate protects the dark glass from
spatters and breakage. When removing slag it is strongly recommended to wear eye protection to prevent injury
from sharp and hot slag particles. Depending on electrode type and eye sensitivity protective glasses are available
in different shades. Normally protective glasses of shade DIN 9 are used for electrodes from 1.5 mm to 4 mm Ø.
Select the correct welding current as shown below:
Current (A) Electrode Ø Material Thickness
25 - 50 1.0 - 2.0 mm 1.0 - 2.0 mm
50 - 100 2.0 - 2.5 mm 2.0 - 4.0 mm
100 - 140 2.5 - 3.25 mm 4.0 - 8.0 mm
140 - 220 3.25 - 5.0 mm 8.0 - 12.0 mm
In principle do not use too thick an electrode.
As a general rule calculate 40 amps welding current per 1 mm of electrode core wire diameter. Depending on
electrode type, material thickness and weld position this calculated value may have to be adjusted plus or minus.
The Invert 130/40 and 130/60 works perfectly with thin plate, which is the outstanding feature of this machine, aside
from its extreme compact and robust design. It is characteristic of an inverter to generate a true direct current, which
makes for a soft and smooth running arc with reduced spatter formation.
Overview Of Stick Electrodes And Their Correct Use
In order to achieve a good weld the electrode has to be dry, so storing in a dry place is essential. Should electrodes
have become moist, dry in an oven at 200°C to 300°C for 1 - 2 hours.
Basic-coated electrodes always require pre-drying at 200°C to 300°C for 3 hours, unless they are vacuum-packed.
Stick electrodes are coded according to EN 499 and other standards, such as B.S. 639, AWS-SFA 5.1 and ISO
2560. The codes are always shown on the electrode package. The electrode description is defined by the
manufacturer according to the standards, the description is checked by an independent test institute for
compliance. This information is shown on the packaging.