Lincoln Electric NA-5SF, NA-5NF K225 Submerged ARC Twinarc KIT, K238 High Frequency Unit

Models: NA-5S NA-5N NA-5SF NA-5NF

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ACCESSORIES

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K225 SUBMERGED

ARC TWINARC KIT

The Twinarc kit provides for the feeding of two 5/64, 3/32, or 1/8 in. (1.98, 2.38, or

3.18mm) solid wires through a single wire feeder. The electrode wire must be the same size. The assembly includes a wire reel, insulated reel mounting bracket, wire straightener, dual wire guides, nozzle, and contact block. Installation, operating, and maintenance instructions are shipped with each kit, are contained in the IM305 manual, and can be ordered as Sec. T2.5.3 K225.

K238 HIGH FREQUENCY UNIT

This unit supplies high frequency to the welding leads for more positive starts, which may be required for certain difficult starting applications. Factory-installed insulation is required. Instructions are shipped with each unit. Installation instructions are contained in the IM305 manual and can be ordered as Sec. T2.5.8.

K239 TWINARC KIT FOR INNERSHIELD® ELECTRODES

This kit provides for welding with two Innershield electrodes. Two 3/32 in. (2.38 mm) flux-cored electrodes are fed through a single wire feeder. Both wires must be the same size. The K239 kit includes the nozzle equipped for water cooling, drive rolls, drive roll locating collar, idle roll assembly, ingoing and outgoing guide tubes, wire straightener, wire reel, and wire reel mounting shaft and insulation. Instructions are included in the kit, are contained in the IM305 manual, and can also be ordered as Sec. T2.5.3 K239.

arc, and submerged arc procedures can be used. Instructions are shipped with the kit, are contained in the IM305 manual, and can also be ordered as Sec. T2.5.6.

K281 SOLID WIRE

STRAIGHTENER FOR

TINY TWINARC

This wire straightener will straighten 0.045 through 3/32 in. (1.14 through 2.38 mm) wire diameters. It is recommended for welding procedures requiring long stickout and where wire position accuracy is essential. Instructions are shipped with the kit, are contained in the IM305 manual, and can be ordered as Sec. T2.5.5.

K285 CONCENTRIC FLUX CONE

The concentric flux cone was designed to fit on the K148 Contact Nozzle alone, the K148 Contact Nozzle with a K149 Linc-Fill Long Stickout Extension, the K129 Submerged Arc Small Wire Twinarc, and the K391 nozzles. (The maximum electrical stickout when using the K149 Linc-Fill Long Stickout Extension will be 4 in. [101.6 mm.]). Use of this attachment results in the flux being fed concentrically around the electrodes. Installation, operating, and maintenance instructions are shipped with each kit, are contained in the IM305 manual, and can be ordered as Sec. T2.2.8 K285.

K310 FLUX SCREEN

Useful for any submerged arc equipment. It removes foreign magnetic particles from reused submerged arc welding flux. Operating instructions are included in the kit.

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K278 SPREADARCTM

The primary application for this accessory is for hardfacing buildup using a Twinarc nozzle. The combination “Spreadarc- Twinarc” covers large areas quickly with smooth beads of minimum admixture with the base metal. Flux cored electrode, open

K325 TC-3 TRAVEL CARRIAGE

The K325 Travel Carriage carries the control box and wire drive head, in either direction, on a beam of suitable length and mechanical specifications. Two models are available: Standard and High Capacity.

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Lincoln Electric NA-5SF, NA-5NF K225 Submerged ARC Twinarc KIT, K238 High Frequency Unit, K285 Concentric Flux Cone

NA-5S, NA-5N, NA-5SF, NA-5NF specifications

The Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S are advanced welding helmets that are pivotal in enhancing the safety and efficiency of welders in various applications. These models are designed to provide exceptional protection and visibility, making them indispensable tools in the welding industry.

One of the main features of the NA-5 series is the auto-darkening filter technology. This feature allows the helmet to automatically adjust its shade based on the intensity of the arc. As the welder strikes an arc, the lens darkens instantaneously, shielding the eyes from harmful rays generated during the welding process. This functionality not only ensures safety but also enhances productivity, as welders do not need to manually flip the helmet up and down.

The helmets are equipped with a wide viewing area that allows for better visibility and precision while working. With a large lens, welders can easily monitor their work and surrounding environment, minimizing the risk of accidents. Additionally, the lightweight design of the NA-5NF, NA-5SF, NA-5N, and NA-5S provides comfort during extended periods of use, reducing neck strain and fatigue.

The NA-5 series is also well-regarded for its durability. Constructed from impact-resistant materials, these helmets can withstand the rigors of demanding work environments. This durability extends the lifespan of the helmet, making it a cost-effective investment for both professional and hobbyist welders.

Another notable characteristic is the adjustable sensitivity and delay settings found in certain models. These settings allow the user to customize the helmet based on their specific welding conditions. For instance, a welder can increase sensitivity for low-amperage tasks or adjust the delay to allow for a smoother transition from dark to light after completing a weld.

Furthermore, the helmets come with a reliable battery life, ensuring that they can be used for long periods without interruption. Some models also feature solar assist functionality, which helps recharge the auto-darkening filter, enhancing their overall efficiency.

In summary, the Lincoln Electric NA-5NF, NA-5SF, NA-5N, and NA-5S welding helmets represent a significant advancement in personal protective equipment for welders. Their combination of auto-darkening technology, wide viewing area, lightweight design, durability, and customizable settings makes them an excellent choice for anyone engaged in welding tasks. With these helmets, users can achieve greater safety and efficiency in their work, enabling them to focus on their craft with peace of mind.