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Ramsond CT520DY 3-IN-1 50 Amp Plasma Cutter + 200 Amp TIG and ARC Welder

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Product Description

  Make: Ramsond
  Year: 2012
  Model: CT520DY
  Type: 3-in-1 Multifunction Digital Inverter Plasma Cutter + TIG Welder + ARC (MMA) Welder
  Condition: BRAND NEW (In Sealed Factory Box)
  Status: IN STOCK (Ships in 2 business days)
: Features:
  • 50 Amp Digital Inverter Air Plasma Cutter
  • 200 Amp Digital Inverter DC TIG Welder
  • 200 Amp Digital Inverter DC ARC (MMA) Welder
  • Automatic Dual Voltage / Dual Frequency (110/220V 50/60Hz)
  • Integrated Digital Display (NEW FEATURE)
  • Integrated Pressure Gauge (NEW FEATURE)
  • Foot Pedal Ready* (NEW FEATURE)
  • TOSHIBA Transistors (MOSFET)
  • PAPST Advanced German Cooling System
  • Max Severance Thickness: 1 "
  • Max Cut Thickness: 3/4 "
  • Plasma Torch
  • Plasma Consumables
  • Air Filter/Regulator
  • TIG Torch
  • TIG Consumables
  • Argon Flow Meter
  • ARC Welding Electrode Clamp
  • Ground Clamp
  • Connections, etc.
  Warranty: 1 Year (Parts and Labor)
* The foot pedal is not included as part of standard accessories and must be purchased separately.

The Power Technologies Division of Ramsond Corporation has introduced the CT520DY; its newly redesigned digital inverter multi-function series plasma cutter and welder. It is an exciting new innovation that combines a DUAL VOLTAGE / DUAL FREQUENCY (110V/220 50/60Hz), 50 Amp air plasma cutter, a 200 Amp TIG welder and a 200 Amp MMA (ARC) Welder into a handsome, rugged, compact and light package. Ramsond CT520DY is the introduction of the redesigned version of the original Ramsond CT520, CT520D and CT520DX. The CT520DY is redesigned and now equipped with DIGITAL AMP DISPLAY, INTEGRATED PRESSURE GAUGE, FOOT PEDAL FUNCTION and FOLDABLE INSULATED HANDLE.  It has been internally redesigned to incorporate the latest high frequency inverter technology using V-MOSFETs by TOSHIBA along with PWM (Pulse Width` Modulation) which help deliver a far more constant, concentrated and precise current to the cutting/welding surface. Furthermore, as a result of these improvements, CT520DY has been substantially reduced in size and weight.  With the Ramsond CT520DY, regardless of your training, you can achieve smooth, clean and uniform cuts and welds of wide range of surfaces and material (e.g. stainless steel, carbon steel, alloy steel, copper, brass and other conductive material) with minimal heat input and without distortion of metal. Similarly, the TIG and ARC functions are user friendly and reliable. This model has been designed so it is easy to use by the do-it-yourself user, while fully accommodating the demands of professional operators.

*NOTE: The CT DY Series are DC welding machines. Aluminum welding is best accomplished using AC (Alternating Current).


Manufacturer's Suggested Retail Price: $1,530.00



RAMSOND CT520DY is extremely user friendly.  It has only five controls; the ON/OFF switch, Amperage Control Knob, the Post Flow Knob, function selector and the foot pedal ON/OFF switch.  The amperage adjustment knob enables the operator to change the output current, accommodating the cutting or welding of different thickness and materials. However, many operators choose to leave the amperage control on full output for all thickness of metal. The POSTFLOW knob adjusts the length of time that air/gas flows out of the TIG or Plasma torch after the operator lets go of the torch button. You can adjust the postflow time from 3 seconds to 10 seconds. The POSTFLOW air is ideal for cooling the cutting or welding surface. The CT520DY is also foot pedal ready. The foot pedal ON/OFF switch must be in the OFF position if a foot pedal is not attached. When foot pedal is attached, it must be switched to the ON position.

Unlike traditional models, the Ramsond CT520DY features 2 new additions that set it apart from its would-be competitors. The outdated models normally are equipped with a pressure gauge that is attached to the air filter located in the rear of the machine. Naturally, with these traditional units, the user must either flip the machine around or walk to the back the machine to view the pressure gauge and setting. Ramsond CT520DY has incorporated the air pressure gauge into the front panel of the unit , making it visible from virtually any angle. Additionally, the Ramsond CT520DY is equipped with a large digital display that conveniently displays the current setting of the unit.


The new CT520DY is foot pedal ready. The foot pedal is an optional accessory which may be purchased separately. The Ramsond foot pedal controller attaches to the 7-prong connection on the front panel of the unit. Simply leave the 7 prong connection of the torch disconnected and connect the foot pedal 7 prong connection and turn the foot pedal ON/OFF button on the front panel to the ON position. The foot pedal function provides further flexibility to the operator to control the output current (Amp) via the foot controller. The foot pedal is also equipped with the a current adjustment knob on its side. Using this current adjustment knob, the user can set the maximum output current. For example, if the maximum output current is set to 160 Amps (using the adjustment knob of the foot pedal), when the foot pedal is fully depressed, the maximum output current will not exceed 160 Amps. The foot pedal is equipped with a spring loaded retraction system. So lifting the pressure off the foot pedal will lower the output current and ultimately return the current to zero. The foot pedal can be used with all functions, however it is typically used with the TIG function.


*The foot pedal controller is not included as part of standard accessories. It must be purchased separately.

Unrivaled Quality
The production process for Ramsond products is among the most stringent in the world and meets or exceeds some of the industry's most rigid standards. Our studies show that it is in fact among one of the best in the industry and is unrivaled by other would-be competitors. The quality of each of the integrated components is constantly monitored during the course of production. Only components and materials that meet the highest industry standards for quality are permitted to be incorporated into Ramsond products. Finally, upon conclusion of production, each unit is put through a newly devised, far more rigorous 30 point testing and quality inspection routine. This process is critical to ensuring a product that is not only safe, but reliable in both performance and durability.

Cut at 12 Times the Speed of Sound

Plasma cutting is a process that is used to cut steel and other metals using a plasma torch. In this process, an inert gas (compressed air) is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface that is being cut, turning some of that gas to plasma. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut. The plasma, which is maintained between the work-piece and electrode, travels at over 9000 MILES PER HOUR (15,000 km/Handle).  That’s over twelve times the speed of sound.

Advantage of Plasma vs. Oxy-Fuel Torch

Plasma does not use expensive, hazardous gases, only compressed air. It imparts much less heat into the piece being cut, eliminating warping. It does not require ignition. It leaves little to no slag to clean up or grind off.  The cost per cutting hour can be less than oxy-fuel since there is no gas cost. It is also much quicker and easier.  So, you cut better, faster and inexpensively.

Skill and Training

There is not a lot of skill or training required to operate a plasma cutter.  The torch should remain at a 90-degree angle.  With the Ramsond CT520DY you can keep a standoff or drag the tip of the torch on the metal. The TIG and ARC welding are relatively easy also, however, they do require some practice.
Compressed air is the most popular gas used for plasma cutting. You can use an air compressor or a bottle of compressed air. The CFM (Cubic Foot per Minute) is important because that is the amount of air that will be distributed per minute and will keep your RAMSOND CT520DY running consistently. The PSI (Pounds per Square Inch) is the actual air pressure required to operate your CT520DY (40-75 psi).  The other gas often used is nitrogen, but the only advantage to using it is for cutting stainless steel. Although, you will get a cleaner cut, the cut thickness will be slightly diminished. With some exotic metals a gas mixture may be needed. You will also want to have clean and dry air when operating any plasma cutter. Ramsond CT520DY comes already equipped with a 2-in-1 filter/regulator device. This 2-in-1 regulator/filter regulates the output air pressure and keeps the air dry and clean. Dry air is important because if there is moisture in the line it will travel with the air and exit the end of the torch. This is not necessarily dangerous but will shorten the life of your consumables because the arc will follow the moisture in all directions and erode the tip prematurely. The Air Filter/Regulator attaches to the rear of the unit. The knob on top of the regulator adjusts the output air pressure. You can see the pressure on the pressure gauge installed on the front panel. By turning the knob, the output air pressure can be adjusted to your desired level.The filter/regulator also removes dust and moisture from the compressed air. You may see water collected in the glass bowl of the filter regulator. This means that your compressed air source contains moisture which was filtered and collected by this regulator/filter. If you see accumulation of water in the glass bowl, do not be alarmed, simply pull on the drain/safety pin located on the bottom of the bowl to empty out the water.
Included Argon Regulator/Flow meter

Included with the RAMSOND CT520DY is an Argon Regulator and Flowmeter combination which accommodates highly precise adjustment of gas flow for the TIG function of the unit. The use of flowmeter provides more accurate readings than regulator gauges, therefore, substantially reducing gas waste.

The included regulator is equipped with a STANDARD (CGA-580) connection suitable for use in US and Canada .


The CT520DY inverter rectifies the input voltage (110V or 220V) into DC (Direct Current), which is then fed into a series of  MOSFETs (Metal Oxide Semiconductor Field Effect Transistor). Ramsond CT520DY utilizes the most advanced TOSHIBA MOSFETs. These MOSFETs (transistors) are switched at thousands of Hertz, which greatly reduces the magnetic flux, and therefore the size of the transformer.  In simple terms, MOSFETs allows for a compact and light weight machine such as the CT520DY to operate at its performance parameters. The use of these MOSFETs makes it possible for CT520DY to produce the necessary power, using very little space and creating minimal heat dissipation.


Each Ramsond CT520DY comes complete with the following accessories:

  • Plasma Torch (Push Button Control) with 10 Feet Hose
  • Plasma Consumables (10 Electrodes, 10 Nozzles, 5 Shield Cups and 5 Swirl Rings)
  • Air Filter/Regulator and Mounting Hardware (pictured above)
  • TIG Torch (Push Button Control) with 10 Feet Hose
  • TIG Long Back Cap and Short Back Cap
  • TIG Consumables (3 Collect, 4 Collet Bodies, 4 Ceramic Nozzles)
  • Argon Regulator/Flowmeter
  • ARC/MMA Rod Clamp
  • Ground Clamp with 8.5 Feet Wire (Universal for TIG, Plasma and MMA)
  • Compact role of teflon tape
  • Inlet hose with nozzles and clamp
  • Instruction Manual


A 1 year Limited Manufacturer's Warranty is furnished with this product. This limited warranty provides for both PARTS and LABOR at Ramsond's certified repair service center. Ramsond has a complete dedicated service center for its line of welding and plasma cutting products. This service center is equipped with state of the art technology which accommodates proper service and maintenance of these units.

We consistently maintain a large inventory of consumables (electrodes, tips, cups, shields, etc.) which are available to our customers. For sales, customer support or other inquiries please feel free to contact us during normal business hours at (248) 363-8302 or via email at sales@Ramsond.com.

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Product Reviews

  1. 5 years on 4 Star Review

    Posted by on 29th Apr 2019

    Moderate to heavy use the first year and mild use since. Primarily stick, some cutting no TIG so far. Ran well until a couple of days ago and after welding during, set up for a second, there is a loud POP. No display, restart display comes up and fades. Pull apart and there are two rice grain sized resistors on the power board that blew up and all the big 2200 microfarad caps are a bit swollen. Called Ramsond, very helpful. Buying a new P50-1 board off clsparts and Ramsond will email me schematics to fix the one I have to keep as spare. One possible cause is I kept it in the garage this winter and it went down to ~ -30C. Will keep it above freezing from now on. Still happy all things considered! If no further review the ~$200 repair and rebuild is working and I have a spare board too.

  2. Excellent machine 5 Star Review

    Posted by on 8th Dec 2014

    Bought to replace an aging welder and has been heavily used by myself and a professional welder/iron worker with over 20 years experience. It compares on par with a Mi11er welder (yes those are ones not L's for copyright purposes) priced at three times this one that only welds. It has run flawlessly in all the welding we have done to date and performed perfectly in day upon day of constant welding everything from large structural members to thin tank repair work. I would buy it again and do recommend it to my friends as my friends who weld and teach welding recommended it to me.