CNC Plasma Cutter

What is CNC Plasma Cutting Machine? CNC plasma cutting refers to the cutting of metals using a plasma torch controlled from a computer. Plasma cutters operate by forcing a gas or compressed air at high speeds through a nozzle. Once an electric arc is introduced to the gas, ionized gas or plasma is created, the fourth state of matter. It, in turn, cuts through the metal. CNC Plasma cutter or CNC Plasma cutting machine is mainly used for carbon steel, metal, steel and steel tube cutting with 0-50mm thickness and stainless steel 0-20mm cutting. It is a cost-effective machine for metal cutting and the price is lower than the Fiber laser or YAG laser machines but it can cut very thick of steel and with very good cutting performance.

The plasma cutting machine is mainly used for The plasma cutting machine is configured with plasma power with 65A, 80A,100A,125A,160A, and 200A according to the thickness of the steel material. The plasma cutter is with high speed and good quality cutting performance.

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CNC Plasma Cutting Machine Display

Composition of CNC Plasma Cutting Machine

The CNC Plasma Cutting Machine can cut various kinds of complex workpieces with fast cutting speed, high efficiency, good cutting surface quality, accurate cutting size, and small thermal deformation of the workpiece. Due to its high efficiency and good cutting accuracy, it has been widely used in machinery manufacturing, engineering machinery, mining machinery, shipbuilding, pressure vessels and other industries.

Composition of CNC Plasma Cutter

Composition of CNC Plasma Cutter Controller

Our CNC Plasma Cutting Machine comes with the Start control system, and Phoenix graphic cutting software is installed on the system, which has the characteristics of intuitive human-machine interface and simple and flexible operation. The controller system transmits to the driver through the I/O interface control circuit to control the motor to achieve position control and complete the graphic cutting process.
The torch height control has two main functions, one is to achieve the initial positioning function when the plasma starts the arc, and the other is to achieve automatic control of the torch height during the cutting process. Our CNC Plasma Cutting Machine uses an Automatic arc voltage height controller.

Composition of CNC Plasma Controller

Introduction to CNC Plasma Arc Cutting

The Principle of Plasma Cutting

Plasma cutting uses a high-temperature, high-speed plasma arc as the heat source. It uses compressed gas as the working medium. The compressed gas ionizes to form a high-temperature, high-speed plasma arc, which melts (or evaporates) the cut metal locally. High-pressure airflow blows the molten metal away from the substrate to form a narrow and clean cut.

Structure and Function of Cutting Torch

The cutting torch is a key component of CNC Plasma Arc Cutting, which is directly related to the efficiency and quality of CNC Plasma Cutting. The main parts are Electrode, Nozzle, Swirl Ring, Retaining Cap, Shield, Water Tube.

Structure of plasma torch

1. The main functions of the nozzle in the cutting torch:
1) The plasma nozzle shrinks and sprays the rotating plasma gas to produce “mechanical compression”, “thermal contraction”, “magnetic contraction” and other effects on the plasma arc column, which increases its energy density and impact force to achieve cutting. purpose.
2) The function of the plasma arc nozzle to produce the pilot arc. The working process is to use the electrode as the cathode and the nozzle as the anode. Under the action of the electric field, the plasma arc is generated between the electrode and the nozzle to generate the pilot arc. When the flame of the pilot arc contacts the arc After the workpiece, the flame current connects the current path between the electrode and the workpiece. At this time, the workpiece replaces the nozzle as the anode, and a plasma arc is generated between the electrode and the electrode. At the same time, the relay cuts off the circuit on the nozzle.
3) The plasma nozzle has high temperature resistance and good thermal conductivity. The temperature of the arc column of the plasma arc is up to 30000C° or more. The arc column passes through the φ2mm small hole of the nozzle, which makes the nozzle temperature very high.
2. The main function of the vortex ring is to generate rotating plasma gas
The plasma jet rotating jet structure is shown in the following figure. It first changes the gas to a tangential jet flow through the vortex ring, and then contracts and jets.

CNC Plasma Cutting

When the plasma gas rotates at a high speed, the centrifugal action causes the lower temperature and higher density gas to move outward, and the higher temperature and lower density gas to move to the middle. This forms a radial external cooling and internal heat in the injection hole of the nozzle. Temperature gradient. This gradient increases the “heat shrinkage” and “magnetostriction” effects of plasma gas on the arc column. Under the combined effect of “mechanical shrinkage”, the plasma arc column has a higher energy density, better straightness, and more impact It can be seen that under other conditions being the same, the higher the rotation speed of the plasma gas flow, the better the shrinkage effect on the plasma arc column.

Arc Voltage Height Control

In the cutting process, it is important to control the height distance between the plasma torch and the workpiece. The height distance not only causes changes in the plasma arc parameters (arc voltage, cutting current), but also directly affects the cutting bevel and surface cutting quality. In the actual cutting process, due to the inevitable deformation of the plate, the cutting height between the torch and the steel plate is constantly changing. To ensure the cutting quality, the torch must be adjusted up and down to stabilize the arc within the normal range Cut.

The cutting height of the torch has a certain proportional relationship with the arc voltage. Using this principle, we usually use the arc voltage to control the height of the torch, which is called arc voltage height adjustment.

Arc Voltage and Cutting Height

Parameter Data

Brand FORSUN
Model Name FS1325P, FS530P, FS2030AP,FS2040P
Axis 3 Axis CNC Router, 4th Axis CNC Router (Optional)
X, Y Axis Travel 1300X2500mm(4X8ft), 1500X3000mm(5X10ft),2000X3000mm.2000X4000mm.
Z Axis Travel 300mm,400mm, 500mm,600mm.
Plasma Power 63A,100A,105A,120A,160A,200A
Drive System X, Y and Z axis German Helical Rack and Pinion for X and Y axis . And Z axis with TBI ball screw
Transmission X, Y and Z axis HIWIN/THK Rail Linear guide and bearings.
Motor for X, Y, and Z Stepper motor / AC Servo motor
Machine Structure Thicken weld steel tube machine body. Rigid gantry and side support, Professional Plasma cutter table
Working Voltage 220V/50HZ/60HZ,3PH or 380V/50HZ/60HZ,3PH
Command Language G Code & M Code
Operating System Start controller / DSP Handheld Controller/ NC studio/Mach3
Lubrication Automatic lubrication system
Max. Rapid Travel Speed 40000mm/min
Max. working Speed 25000/min
Machining Function carbon steel 0-50mm cutting thickness and stainless steel 0-20mm cutting thickness
Compatible Software FastCam, Ucannest
Other Names CNC Plasma Cutter, CNC Plasma Table, CNC Plasma Cutting Machine, Plasma CNC Machine, CNC Metal Cutting, Hobby CNC Plasma Cutter, CNC Plasma Cutting Table, CNC Plasma Router
Price Range $4500.00 – $21000.00
Suitable Materials Stainless steel, mild steel, brass, copper, aluminum alloy, sheet metal, spring steel, gold, silver, etc
Applications Sheet metal, kitchenware, components, decorations industry

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Product Details

Advantage & Features

  • The Plasma Cutting Machine can cut all metal sheets. The cutting area is very wide.
  • The cutting speed of the metal cutting machine is very fast and the efficiency is high. The cutting speed can reach more than 10m/min.
  • The cutting precision is higher than the flame cutting machine. The underwater cutting has no deformation, and the fine plasma cutting has higher precision.
  • The Plasma Cutting Machines use a professional plasma CNC system. It is all offline work and humanized operation.
  • The CNC Plasma uses the advanced USB interface to work offline with fast data transmission and does not occupy computer resources.
  • This  Metal Cutting Machine can be compatible with a variety of software.
  • The machine is with the function of continued carving when power outage and breakpoint. And the function of processing time prediction and automatic tool setting.
  • Affordable factory direct price and one year warranty.

Working Procedure of CNC Plasma Cutter:

  1. Convert the working file to DXF by AUTO CAD or use existing Solid-works
  2. Import the parts drawing of DXF format or DWG format into the FastCAM software for nesting and conversion, and then output NC NC program (generally it is G code and EESI format code)
  3. Copy the converted NC program(G Code file ) to the plasma cutting machine controller system by USB Disk.
  4. Set working parameters according to the material and thickness of the selected program.
  5. Adjust the position of the torch on the plate and start the program for cutting;
  6. End cutting, cutting, and slag removal.

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How to Buy ?

  1. Enquiry. Feel free to tell us what material you want, what is your max working size and what product you want to do. The budget is also welcome.
  2. Free Quotation provided. We will send our quotation sheet with machine configuration, photos, videos and prices to you according to your request.
  3. Launch the order. Your company will arrange the deposit, and we start the machine production from 3D design, machine body welding, machining, painting spare parts preparing, manufacture and inspection.
  4. Testing sample video and delivery. After our manufacture and inspection, we will make a final video of the machine working to you. After the confirmation, the machine will be shipped by sea through my or your agent.
  5. After-sale service. We will provide a video teaching program to tell the customer how to use or install our machine. And my service team will 7*24 hours online to answer customer questions.
  6. Feedback. We are expecting feedback from our customers. Please tell us how you feel about machine quality and service. If you have more ideas to help us improve, that will be very appreciated.

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