Section A

Installation

Technical Specifications

Wire Capacity

.030" - .045" (0.6mm - 1.2mm) solid and hard wire

.030" - 1/16" (0.8mm - 1.6mm) aluminum and cored wire

Wire Speed

800 IPM (20.3 mpm) Max at rated feeder input voltage (120VAC / 42VAC)

Duty Cycle

All ratings are using Argon gas

200 Amps/25 Volts

Air cooled - 60%

250 Amps/25 Volts

Water cooled - 60%

Support Equipment Required

C.V. or C.C. power source of sufficient capacity for your needs.

Regulated gas supply and hoses.

Properly sized power leads from power source to wire feeder and ground.

Water source and hose capable of providing a minimum of 1 quart (.95 liter) / min. at 45 psi when using water cooled guns.

Coolant Recommendations

Use a name-brand additive, which does not contain reactive sulphur or chlorine and does not react with copper, brass or aluminum or create a custom mix using this formula:

Use 3 Gallons (11.4 Liters) Distilled water. Use 1 Gallon (3.8 Liters) ethylene glycol. Use 1 tsp (5 ml) liquid glycerin

The Coolant rate should be 1 quart (.95 liter) / minute at 35 p.s.i.

Gun Lead Connections

Power Cable - Air Cooled

A #2 AWG power cable is used on the CobraMAX™ air cooled gun. The gun end is threaded into the gun body with torque requirments of 100+5 in-lb. The power cable fitting connects to the power block in the Cobramatic® wire feed cabinet.

Power Cable - Water Cooled

The CobraMAXwater cooled gun utilizes a power/water cable with a #4 AWG cable inside a 5/8” (16MM) diameter hose. The gun end is threaded into the gun body with torque requirements of 100+5 in-lb.

IMPORTANT

Water cooled guns MUST be WATER cooled.

Conduit

The CobraMAXgun comes standard with a poly-lined conduit, for feeding aluminum wire. The longer fitting with a shallow groove is used on the gun end. A set screw located on top of the gun handle secures the conduit in place.

CobraMAX™ Owner's Manual - Page

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Lincoln Electric IM774 manual Section a Installation

IM774 specifications

Lincoln Electric IM774 is a state-of-the-art industrial MIG (Metal Inert Gas) welding machine designed to cater to the demanding needs of professional welders and fabrication shops. This model is known for its versatility, efficiency, and the innovative technologies incorporated into its design, making it a preferred choice for numerous welding applications.

One of the standout features of the Lincoln Electric IM774 is its impressive output range, which allows welders to work with various materials, including steel, stainless steel, and aluminum. This machine can deliver a maximum output of 300 amperes, making it suitable for heavy-duty welding tasks, as well as finer work. Moreover, the IM774 supports different wire sizes, enhancing its adaptability and making it a go-to option for different welding projects.

The IM774 employs advanced inverter technology, which contributes to its compact and lightweight design while maintaining high welding performance. This technology allows for better energy efficiency and reduced operational costs compared to traditional transformer-based machines. The inverter also ensures a more stable arc, resulting in superior weld quality, fewer defects, and reduced spatter.

In addition to its robust performance features, the IM774 comes equipped with several user-friendly functions. The machine features an intuitive digital control panel that provides precise adjustments for wire feed speed and voltage settings. This simplicity in operation allows both novice and experienced welders to achieve optimal results without extensive training.

Safety and durability are paramount in the design of the IM774. The machine is built with a rugged frame that can withstand the rigors of the shop environment. Integrated safety features, including thermal overload protection and a built-in gas solenoid valve, ensure the safe operation of the machine, minimizing risks associated with prolonged use.

Another notable characteristic of the Lincoln Electric IM774 is its compatibility with automated systems. Welders can easily integrate this machine into robotic welding setups or use it for semi-automated welding applications, showcasing its flexibility across various industries.

In conclusion, the Lincoln Electric IM774 MIG welding machine stands out due to its high-performance output, advanced inverter technology, user-friendly controls, and robust safety features. Its combination of adaptability, efficiency, and quality makes it an ideal choice for professionals seeking reliable and high-quality welding solutions.