Portable welder service for more sophisticated projects


Images of our most popular portable welders

Our portable welder unloads the welding machines from the trailer and connects them to your power inlets. The portable welder uses these highly modified and specialized medium size or small welding machines to perform more complex welding in your facilities. We also use portable welding machines in cases where mobile welding is not sophisticated enough and we need more responsive or more specialized welding machines. The prime example would be stainless steel welding of stainless steel sinks. Additionally, we use our portable welding machines in areas of high traffic and insufficient parking or when we weld on the roofs of apartment buildings.

Portable welding projects generally last longer in comparison to mobile welding. Not only the portable welder has to unload these machines from the trailer but also must connect them to the outlets. Then it has to provide protection for surroundings as well as protection for your employees. The final factor, the weld sophistication also ads up to the project’s timeline.

The project time span and project’s security also influence on our choice between portable welder and mobile welder. With the prediction of longer project timeline and sufficient security for our equipment than we tend to prefer portable welder services. On the other side, when dealing with short project timeline and insufficient security for our equipment than we tend to implement mobile welding.

Additional advantages of portable welder

Our portable welder uses medium size Mig welders requiring input of 220V single phase, portable SMAW welders requiring 220V / 110V also single phase. Moreover, he uses portable GTAW welders with water cooled Tig guns and light self-propelled welder generator. Although, our large mobile units are very comfortable and reliable for mobile application, unfortunately they are not practical for portable applications or do not provide sufficient control in some specific conditions.

Entering your facilities to weld on your premises caries many responsibilities with it. One of them is a safety hazard of exhaust gases inside the large warehouses, retail store or production facilities. For this reason alone the portable welder services are more preferred. Especially, in situations where welding fumes can not be efficiently removed the portable welder services are more proffered.

Additionally, we use our portable welders when we can not access the welding spot even with 600 ft cables or when the long leads are disallowed due to safety reason. The long leads of mobile welder not only create a tripping hazards but also create multiple hazards for forklift driving over them. On the other side, we also do not want to damage our welding leads by heavy forklifts driving over them.

Precision welding and high machine responsiveness is crucial

Most importantly, however, our welders use these portable welding machines when the project demands precision welding and high machine responsiveness. I can not stress enough to our clients that in their best interest is to have a portable welder doing more complex welding of aluminum or stainless steel.

Frequently, we use also these machines when we weld under multiple welding parameters too. With precise parameters’ setups close to the welder the welding on different thicknesses of material goes smoothly.

Most of our portable welders are setup to do a one welding technology and are modified with many attachments. These machines are highly specialized and therefore we pay a great attention not to damage them. In particular, we do not allow visitors or bystanders touching them, moving them, or operating them.

The hospitalization industry with variety of restaurants and fast food chains use our portable welders often

Portable welders increase fire hazards

Portable welders increase fire hazards even if the welder takes effort to mitigate it. In fact, the fire hazard generated by portable welders is much greater in comparison to hazards generated by mobile welders. The portable welders weld in proximity of flammable materials and in places where number of fire watchmen must be increased. Whereas mobile welders weld in more controlled environment.

It is important to realize that fire hazard mitigations cost money. We not only have to protect your machines with fire blankets and tarps but also we have to protect your employees against welding flashes. This protection increases the cost of portable welding.

Extension cords to our portable welders

As mention above, we must connect these medium portable welding machines to the client’s electrical outlets, except self-propelled versions. Again we preffer to use 220V outlets but for some applicaitions 110V could be sufficient. The power supply to our portable machines impacts welding technology used and safety of your employees.  And particularly our efficiency. Any problems with power supply on your premises reduces our efficiency dramatically. Therefore in interest of both parties, we suggest to inspect the current’s load prior our visit.

With this in mind, I would like to mention that we have most of the adapters for your receptacles of 220V single phase or triple phase. However, if we notice that some of your receptacles are damaged, we will not plug our machine there. Therefore please check the 220V receptacles prior our arrival. Also, sending pictures of receptacles relatively closed to the welding spot is a good idea. Certainly, from time to time, we find old receptacles that we do not have a plug for.

We have about 60 feet of a very large size extension cord to our portable welders and about 8 most popular plugs. These heavy extension cords allow our machines to operate smoothly when we operate them within their capabilities. Our extension cords could form a tripping hazard even when we try to hide them as much as we can. So, please pay attention when walking in our proximity.

Time span of projects for portable welders.

Our portable welder stays on your premises from a few hours or few days to few weeks. The commercial kitchen projects usually do not last long. However, more advanced open web steel joist reinforcement could last a couple of days. The longest lasting are on-site fabrication with portable welder setup. These on-site fabrications performed on your facilities could last a few weeks. On the picture below you can see the longest on-site fabrication that lasted almost 4 weeks.

JW Portable Welding & Repair's typical portable welder arrangement on manufacturer's premises. London, Ontario, 2020 JW Portable Welding & Repair’s typical portable welder arrangement on manufacturer’s premises. London, Ontario, 2020

More importantly, with this setup we have accomplished our 2020 Flagship project

Self-propelled and portable welding machines

The self-propelled, and portable welding machines are very useful for welding on top floors of apartment buildings under construction, and in large and tall warehouses. In these conditions  only 120 V with 15A power is available and this current parameters are not sufficient for a high quality weld. These relatively small self propelled welding machines are still unloaded from our trailer but we do not have to plug them to your power outlet.

There are very useful when portable welder must travel on foot from one welding spot to another. Since these welding machines are on large wheels they can be relocated easily, which eliminates dragging heavy welding leads.

We also use them for welding on top of large size vessels popular in chemical industries. Moreover, we use them in areas not accessible by our trailers and with no electricity. Surely, our self-propelled portable welding machines are an asset.

Welder pulls a small portable and self-propelled welding machine on construction site of condominium building. By JW Portable Welding & Repair, London, Ontario, 2020 Welder pulls a small portable and self-propelled welding machine on construction site of condominium building. By JW Portable Welding & Repair, London, Ontario, 2020

Tig (GTAW) portable welders

GTAW portable welders are the best to repair welding defects such as  undercut weld and porosity. However, they do not work very well for correcting pinholes. Still, the stick welder works magic for repairing pinholes.

Specifically, we operate portable welders for Tig welding stainless and aluminum. Our air cooled Tig guns are excellent for short and small welding jobs in restaurant kitchens.

A typical setup of small Tig portable welder for detail stainless steel welding in commercial kitchen. By JW Portable Welding & Repair, London, Ontario, 2020
A typical setup of small Tig portable welder for detail stainless steel welding in commercial kitchen. By JW Portable Welding & Repair, London, Ontario, 2020

However, for welding cast aluminum we use much more powerful GTAW (Tig) machines equipped with  variety of water cooled GTAW guns since they provide better working temperature efficiency. Tig welding aluminum requires higher amperage with larger tungsten size and therefore the tig guns must be bigger. The precision of Tig is also very useful for repairing welding defects left by the robot or a welding machine operator. In this way, we can correct variety of welding defects such as undercut weld and porosity.

Mig (GMAW) Portable Welders

We also operate portable Mig welding stainless steel and aluminum setups. The portable welder for Mig welding stainless steel is rather a light and small machine and is very useful in welding in the restaurants. This highly modified Mig welding machine has been recently added to our services to accomplish a challenging task of welding cracks in stainless steel sink.

The portable Mig setup for aluminum is a much larger machine for portable standards with a 25 feet or 50 feet spool gun. Therefore we use it only on larger and longer lasting jobs. This welding machine successfully welds aluminum molds up to 3/4 inch thick.

Stick portable welder

Our stick portable welder is a very small and portable welding machine. It that has helped many clients in in most difficult situations. We can plug this machine to 110V  15A and by using a very thin rods we can accomplish welds in places where there is no access to 220V.  And our mobile units can not be used for variety of reasons. This machine however, can not provide stick aluminum welding since the aluminum rods of smaller sizes are not rigid enough for comfortable welding.

Safety of your employees

Our portable welders and associated portable welding equipment arrive to the jobsite in plastic containers for easy moving using dollies. We bring on site very interesting equipment and tools that aide in our welding. Having this in mind, we understand your employees curiosity trying to look up some of our tools.

Unfortunately, we disallow any touching of our welding machines. Same rule applies to our other welding equipment and our welding consumables. In fact it applies to  everything what is in our containers. Therefore, we would really appreciate leaving us alone without any disturbance during our welding for the best welding results. In effect, our portable welders should focus on their safety and safety of your employees too. Therefore, we also do recommend removing your employees from the room where we weld.

All welding consumables to our portable welders are provided by SureArc.