Lotos Ct520d Multi-Process Welder Review

Lotos Ct520d Multi Process Welder






Cutting ability






Value for Money



  • Brand & Model Name: LOTOS CT520D
  • Material: Steel
  • Size: ½ inch clean cut
  • Style: 50Amp Plasma Cutter
  • Function: 3 in 1 (Plasma cutter, DC TIG welder, and DC stick welder)
  • Power Source: DC
  • Voltage: 110V/220V (50Hz/60Hz)
  • Amperage Capacity: 10-200A @ 220V and 10-150A @ 110V
  • Installation Process: TIG welding
  • Weight: 38.5Lbs

In case you need a welder cum cutting machine, you might not need to look further. Lotos CT520D multi-process welder will provide all you need. You will undoubtedly agree after reading this Lotos CT520D multi-process welder review.

With a range of features and advanced technology, you’ll be getting yourself the best multi-process welding machine. Like other Loots products, this one is also a budget-friendly option for DIY users and professionals.

There are plenty of reasons for which we choose this multi-process welder for you. This is what we are going to break down in Lotos CT520D multi-process plasma cutter review.  

Specification at a Glance:

  • Brand Name: LOTOS
  • Model: CT520D
  • Material: Steel
  • Size: ½ inch clean cut
  • Style: 50Amp Plasma Cutter
  • Color: Brown
  • Function: 3 in 1 (Plasma cutter, DC TIG welder, and DC stick welder)
  • Power Source: DC
  • Voltage: 110V/220V (50Hz/60Hz)
  • Amperage Capacity: 10-200A @ 220V and 10-150A @ 110V
  • Installation Process: TIG welding
  • Weight: 38.5Lbs

Highlights of Lotos CT520D Multi-process Welder

Lotos CT520D 50 AMP air plasma cutter offers a lot of alternative options for MIG welders. This advanced plasma cutter is an effective tool that comes at an affordable price.


The Lotos CT520D is one of the leading multi-process welders that offers a 3 in 1 function. It allows 200A Stick welder, 50A Air Plasma Cutter, and 200A TIG welder with the flip of a switch. This multipurpose welder lets the user to DC TIG/Stick welder and plasma cut. 

Cutting Ability

With advanced Lotos technology, this Lotos CT520D multipurpose welder met the cutting standards. This welder is suitable for alloy steel, stainless steel, mild steel, aluminum, copper, and other metals. It assures TIG welding on stainless or steel and precise welding on thinner-gauge materials.

Lotos CT520D can TIG weld 0.250” mild and stainless steel with ease. Also, it can cut 0.375″ and .500″ to well. Apart from that, the plasma cutter features ½” max cutting thickness and ¾” max severance thickness.

Dual Power Input

Lotos CT520D air plasma cutter includes automatic dual voltage power input and dual-frequency. With the dual voltage capability, it allows the machine to run directly on 220V and 110V. 

Thus, its dual voltage makes the device compatible with all types of power sources. You will need to purchase a pigtail to use the machine on standard household current.

Better Control and Excellent Performance

Lotos Ct520d 50 Welder

This multi-process welder features HF ARC start-hand touch control for fast and easy arc start. Also, the precise foot-pedal welding heat control allows for stable welding. 

With the security control system, you can quickly move from one mode to another. Lotos Ct520D welder is one of those machines that can cut and weld together. Its unique non-touch pilot offers you to cut through uneven and rusty surfaces speedily.


With weighing only 38.5lbs, the Lotos CT520D multi-process welder is built to be portable. This portable and compact welder plasma cutter includes a handle with a comfortable grip. You can carry this from job sites to job sites with ease.

Safe to Use

Lotos CT520D plasma cutter offers better safety and affordability than oxyhydrogen cutting. Due to the advanced technology and excellent control system, it becomes too easy to use.

What We Liked

  • Multifunctional 3 in 1 welder
  • Works on dual voltage
  • Secure control system 
  • Efficient operation
  • Convenient to use
  • Excellent portability
  • Superb cutting capability
  • Great build quality

What We Didn’t Like

  • Works only on DC, no AC output
  • The cable seems small

Who Should Buy This?

The Lotos CT520D multi-process welder is designed for people who are looking for durable and versatile welder and a small-sized plasma cutter. It is basically used in a small garage and home. Along with plasma cutting, it does TIG and ARC welding very well. Both the newbie and professional welder prefer using this multi-process welder. 

Frequently Asked Questions (FAQs)

Q: Can I weld aluminum with Lotos CT520D multi-process welder?

A: Yes. You can weld aluminum along with DC as you cannot do this with AC. However, you need to run helium gas. Also, you need to be a little bit of an expert. 

Q: Does this welder comes with tungsten electrodes?

A: Yes, it comes with tungsten electrodes, and the size of it is 1/6. Still, it is better to buy more as you’ll need them before re-sharpening. 

Q: Does this welder need a foot pedal?

A: Though you can adjust the output on the panel, yet you need to buy a foot pedal. It will surely give you a better experience while using TIG.

Q: Can I hook a spool gun to this machine?

A: No. It doesn’t have a wire feed, so a spool gun will not work with this welder.

Q: Do I have to use gas for any type of welding?

A: In the case of TIG welding, you will have to use a bottle of Argon gas. Then, use compressed air for plasma cutting. It doesn’t require any gas for stick welding. 

Final Thoughts

Overall, the Lotos CT520D multi-process welder is a handy welding machine for home and garage. We appreciate its plasma cutting function. Rather than that, TIG and stick welding also works very well once you are used to it. 

That’s all we tried to tell in our Lotos CT520D multi-process welder review. Best of luck with your next project!

Other Lotos Welder:

  1. Lotos TIG 200A Stick AC/DC welder review
  2. LOTOS Mig 175 Welder Review