COS25075 7 Pcs Welding machine tools set

The INGCO COS25075 is a ready-to-use stick welding kit: a strong single-phase inverter stick (MMA) welder for workshop and site work on medium steelwork, together with the essential tools and protective gear in one bag. Add electrodes and you can start welding.

What it is good for

• Medium steel fabrication: doors, gates, railings, stairs and steel frames
• Workshop maintenance and repair of agricultural and workshop equipment
• Regular site work with 3.2 mm and 4.0 mm electrodes

Electrodes and materials

• Takes 1.6–4.0 mm electrodes.
• Typical current for general-purpose E6013 electrodes: 2.5 mm ≈ 60–90 A · 3.2 mm ≈ 90–130 A · 4.0 mm ≈ 120–170 A. Exact ranges vary by brand and type — always use the range printed on the electrode packet.
• Mild and low-alloy steel — with general-purpose rutile electrodes (E6013) or low-hydrogen electrodes (E7018) for structural and load-bearing joints
• Stainless steel — with stainless electrodes (e.g. E308L)
• Cast iron repairs — with nickel cast-iron electrodes
• Aluminium and very thin sheet (below about 1.5 mm) are better done with TIG or MIG welding

Key specifications

• Output current: 15–200 A
• Duty cycle: 200A@60%
• No-load voltage: 79 V
• Electrode diameter: 1.6–4.0 mm

Duty cycle in practice

Duty cycle 200A@60%: measured over a 10-minute period, this means about 6 minutes of welding at 200 A, followed by about 4 minutes of cooling. At lower currents the machine can weld for longer. Staying within the duty cycle protects the machine and extends its life.

Power supply

Single-phase 220–240 V, 50/60 Hz — runs on a normal single-phase supply, but at high current it needs a dedicated, adequately rated circuit. Avoid long, thin extension leads. Low or unstable mains voltage reduces the welding current available. If you use a generator, choose one with enough capacity and automatic voltage regulation (AVR).

Features

• IGBT inverter technology — lighter and more energy-efficient than a traditional transformer welder, with a stable DC arc
• Hot Start — a short current boost when the arc strikes, for easier starting
• Arc Force — raises the current when the arc gets too short, so the arc does not die out
• Anti-Stick — cuts the current if the electrode sticks, so it can be freed without damaging it

In the box (per INGCO)

• Inverter MMA welding machine
• Electrode holder
• 11" C-clamp locking plier
• Auto-darkening welding helmet
• Pair of welding gloves
• Leather welding apron
• 19" tool bag, 1680D polyester

You will also need

• An earth clamp is not in INGCO's contents list — confirm with the seller
• Welding electrodes
• Chipping hammer for removing slag

Always weld with a proper welding helmet, gloves and protective clothing, in a well-ventilated area.

Specifications are as published by INGCO for model COS25075. Usage guidance reflects general welding practice — always follow the machine's manual and the electrode or wire manufacturer's recommendations.