What is a plasma cutter CNC machine?
CNC plasma cutter is a computer-controlled machine with a cutting table, a plasma generator, and other CNC plasma table kit. We also call it CNC plasma table, CNC plasma cutting table, plasma cutting machine, etc. It is the most popular metal cutting machine in the world. It can cut almost any metal with good quality, like steel, stainless steel, aluminum, copper, titanium, etc.
CNC plasma cutter has the advantages of fast cutting speed, smooth cut surface, little heat distortion & deformation. Better than a flame metal cutter, plasma cutting has a small heat-affected zone for thin sheet metal cutting.
Types of CNC plasma cutting table
The CNC plasma cutting machine falls into the handheld plasma CNC cutter, desktop type, gantry type, and portable plasma cutter.
Processing principle of a plasma cutter machine
First, plasma is a gas that is heated to a very high temperature and is highly ionized. It will transfer the arc power to the workpiece, and the high heat will melt the workpiece and be blown off. And it forms the working state of plasma arc cutting. The compressed air is divided into two paths by the air chamber, i.e. plasma air and auxiliary air. Then the high-speed plasma removes the molten metal to form an incision. The material is cut through now.
With different working gases, the plasma cutting table can cut all kinds of metals that are difficult to cut by oxygen. Especially for non-ferrous metals, like stainless steel, aluminum, copper, titanium, nickel. The commonly used working gases include argon, hydrogen, nitrogen, oxygen, air, water vapor, and some mixed gases.
Benefits of a CNC plasma cutter
Good cutting precision
Adopting computer numerical control, it's quite precise and accurate. When the cutting path is programmed, the plasma torch moves in an exact path set by the computer. This is always precise and consistent. It is much more accurate and precise than the handheld and semi-automatic type plasma machine.
Better cutting results
Plasma cutting has a small heat-affected area and produces no chips. As long as the cutting program is correct, there will be limited errors. The cutting slit is narrow and smooth, so the deviation value is small. It also reduces the waste of metal materials.
Fast cutting speed
A plasma cutter can cut thin and medium-thick metal sheets at a high speed. Especially when cutting ordinary carbon steel sheets, the speed can reach 5 to 6 times of the traditional cutting method.
Wide range of applications
Plasma cutter is widely used in automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, construction machinery, steel structures and, other industries. With a proper program, you are able to cut diverse shapes on demand. Besides metal sheets, you can also cut metal tubes, pipes, and irregular shapes.
The plasma cutter machine is safe, simple, effective, multifunctional, and environmentally friendly by obtaining plasma from water vapor.
Since the whole cutting process is completed by the CNC plasma table for sale automatically, it is safer for operators. Operators are no longer need to hold a torch or handle the cutting metal during the metal. This greatly improves safety and reduces occupational injuries.
Easy to use
A CNC plasma cutter for sale is easy to use, requiring minimal training to learn how to operate effectively. One operator can even operate two cutters at the same time. This not only improves working efficiency but also saves labor costs.
Parameters of the CNC plasma cutter
|Model ||CNC plasma cutting machine |
|Worktable size ||4x8 ft, 5x10ft, 6x10 ft, customized |
|Processing materials ||Steel, stainless steel, carbon steel, iron, aluminum, galvanized plate, titanium, |
|Material thickness ||2-80mm, depending on power and material type |
|Voltage ||380V, 50Hz, 3 phase |
|Plasma current ||60A |
|File transfer method ||USB |
|Cutting speed ||0-8000mm/min, depending on power and material type |
|Way of working ||Non-contact arc ignition |
Metal cutting solutions: CNC Plasma cutter vs flame cutter vs laser cutter
Generally, the CNC plasma cutter has the middle metal cutting ability, cutting speed, and cutting cost between flame metal cutting and laser metal cutting.
CNC plasma cutter cuts metals by plasma torch with the help of auxiliary gases. It mainly cuts steel, stainless steel, aluminum, brass, titanium, copper, etc. Theoretically, the maximum cutting thickness of a plasma cutter can reach over 100mm. But the best cutting range is probably within 80mm. The cutting speed of a plasma CNC machine is about 0-8,000mm/min depending on its power and material types. Compared with laser cutting, the cutting slot of plasma cutting is relatively larger, and the cutting surface is rougher.
CNC laser metal cutter performs better at thin metal sheet cutting. It mainly cuts metal sheets less than 20mm. A laser cut machine offers a much higher level of precision compared with a plasma cutter. The laser machine uses less energy and generates less noise, making it a more eco-friendly metal cutting option. CNC laser cutting machine has a tighter tolerance than the plasma machine. This makes laser cutting ideal for precise cuts or parts that have intricate notching.
Flame cutting is a thermal cutting process that uses oxygen and a fuel source to create a flame to melt materials. Flame cutting has the advantage of being very portable as no power supplies are needed. A cylinder for oxygen, a cylinder for fuel gas, hoses, a torch, and a striker are all that are required. This makes it an excellent choice for fieldwork. Another benefit of flame cutting is that it can cut very thick metals. With the right equipment and gas flows, steel several feet thick can be cut using the flame cutting process. Flame cutting also has low equipment costs.
How much does a plasma cutter cost?
The prices of plasma cutter for sale have something to do with the CNC plasma table specifications and configurations. For example, the worktable size, plasma power, bed structure, and the CNC plasma table kit it adopts. And additional fees, like customs clearance fees, shipping fees, training fees, etc. Blue Digital Cutting Machine has cheap plasma cutter for sale, like the basic 1325 model, with prices ranging from $4,000 - $8,000. High configuration and imported CNC plasma table kit will lead to higher machine costs. Generally, the price of our plasma cutting machines ranges from $4,000 to $25,000 on average.
How to choose a CNC metal cutting machine?
If you mainly cut thin steel sheets and require smooth cutting edges and high precision, please consider laser CNC cutters. In case that your business involves not only cutting but also engraving or etching, laser cutters are your best choice.
When you mainly medium-thick metals (25-80mm), and care less about the cutting edge quality, you are suggested to choose a CNC plasma cutter. In case that you need to cut many kinds of metals, you can consider a plasma cutting table.
Blue Digital Cutting Machine offers a variety of CNC plasma cutter machines for different metal cutting. With its advantages of high precision, high speed, and high efficiency, the plasma CNC machines are more popular with users.