CNC Pipe Cutting Machine Manufacturer

SENLISWELD concentrates on providing higher performance and higher quality machines under the premise of ensuring safety and stability.

  • Provides you with personalized customization services according to your needs.
  • Puts the stability and safety of the equipment first.
  • Accelerates your project progress with high-precision and high-efficiency cutting work.
  • One-year quality warranty.

CNC Pipe Cutting Machine

Using a  Tube Plasma Cutting Machine for cutting can greatly improve production efficiency, and the precision of its cutting is also significantly improved compared to other cutting machines.

The Tube Plasma Cutting Machine have been developed to now work with gas. Argon, hydrogen, nitrogen, oxygen, air, water vapor and some mixed gases are also often used as ion arc working gases for cutting.

Which Benefits Do You Get from Using a Tube Plasma Cutting Machine?

  • Stainless steel, aluminum, and its alloys, copper and its alloys, cast iron, and several other metals can be cut with it.
  • Plasma guns can also cut through insulated and non-metallic materials thicker than 150mm.
  • Its cutting speed is swift, and its production efficiency is good; production efficiency is significantly improved while cutting thinner metals with high power.
  • The cutting quality is good with a smooth and level slit, a tiny incision, and a shorter heat-affected zone and deformation than some other cutting methods.
  • Because of the high speed, it is inexpensive. When compared to alternative methods of cutting the same material, using a cheap gas like nitrogen requires fewer raw materials and work hours.
3 Different Pipes Cuts

CNC Pipe Cutting Machine: The Ultimate FAQ Guide

A CNC pipe cutting machine is a valuable machine that you can use for different purposes.

It is better to understand the basics of a CNC pipe cutting machine to understand how it works and what benefits it provides.

Here is an ultimate FAQ guide containing all the information regarding a pipe profile cutting machine.

Let’s get started!

What is a CNC Plasma Pipe Cutting Machine?

It is a CNC plasma pipe cutting machine that cuts sheet metal and metal pipes of various thicknesses using various working gases.

It is a compelling power tool for metal fabrication.

A plasma tube cutting machine is a powerful tool that uses plasma cutting technology to process metal materials.

It can cut non-ferrous metals and other metals that are hard to cut with oxygen utilizing a variety of working gases (stainless steel, aluminum, copper, titanium, nickel).

The plasma cutting machine is the polar opposite of the CNC flame cutting machine, and the two cutting techniques are entirely different.

CNC Pipe Cutting Machine

CNC Pipe Cutting Machine

Plasma Cutting

Plasma cutting is a processing method that employs the heat of a high-temperature plasma arc to partially or completely melt (and evaporate) the metal at the workpiece’s incision.

Then, the high-speed plasma’s momentum is used to remove the molten metal to make an incision.

Plasma cutting with various working gases may cut a wide range of metals that are difficult to cut with oxygen, particularly non-ferrous metals (stainless steel, aluminum, copper, titanium, nickel).

The cutting effect is better, and the critical advantage is that the metal thickness is not as great.

Plasma cutting speed is quick, significantly when cutting ordinary carbon steel sheets.

It can reach 5-6 times the speed of oxygen cutting, the cutting surface is smooth, thermal deformation is low, and the heat-affected zone is minimal.

Automobiles, locomotives, pressure vessels, chemical machinery, nuclear machinery, general machinery, construction machinery, steel structures, ships, and other industries use plasma cutters.

The plasma cutting machine has progressed to the point where working gas is now available (the working gas is the conductive medium of the plasma arc and the heat carrier.

At the same time, the molten metal in the incision must be removed).

The plasma arc’s cutting properties, cutting quality, and speed is all different.

There are clear consequences.

Argon, hydrogen, nitrogen, oxygen, air, water vapor, and some mixed gases are often used as plasma arc working gases.

What are the Applications of a CNC Tube Cutting Machine?

The CNC plasma cutting machine is a specialized tool for plasma arc cutting in high-temperature, high-electric-field environments.

The workpiece metal is melted and blown away from the substrate by a high-speed airflow, high-temperature plasma arc flame flow.

CNC plasma cutting equipment may cut stainless steel, aluminum, copper, and other metals in addition to carbon steel since the arc column temperature surpasses the melting point of metals and their oxides.

The composition of the plasma arc is the most crucial distinction in the application classification of CNC plasma cutting machines based on technical applications.

Pipe Cutting from CNC Plasma Tube Cutter

Pipe Cutting from CNC Plasma Tube Cutter

The classification is briefly described as follows:

  • Dual Gas Plasma Arc Cutting

Plasma gas and shield gas are used in the torches.

Shielding gas’s purpose is to properly isolate the cutting area from the outside environment in order to improve cutting-edge quality.

The mixture of multiple gases can be modified to provide the optimal cutting effect depending on the qualities of the material to be sliced.

  • Water Plasma Arc Cutting

During this cutting process, cooling water is poured into the plasma arc through a small hole in the torch head.

The plasma arc is squeezed again to increase its density and temperature, improving cutting speed and quality.

  • Long-Lasting Oxygen Plasma Arc Cutting

Long-life oxygen plasma arc cutting for carbon steel is a new plasma arc cutting method.

The electrode has a long life, which is the most significant benefit.

The average life is 4 to 6 times longer than conventional oxygen plasma, and the number of perforations is about 10 times higher.

  • Fine Plasma Arc Cutting

The CNC plasma cutting machine’s plasma arc current density is exceptionally high, resulting in a narrow and linear plasma flame, small slit, smooth cutting surface, vertical cutting edge, cutting precision, and surface quality comparable to laser cutting.

What is a CNC Pipe Cutting Machine Used for?

Pipe profiling machines are used in locomotives, motorcars, pressure vessels, construction machinery, nuclear industry, broad machinery, ships, aviation, steel structures, and other sectors to cut carbon steel, stainless steel, iron, aluminum, copper, titanium, nickel, and other metal materials.

CNC plasma cutters are ideal for cutting sheet metal in curved or inclined designs because they provide a highly hot and localized “cone”.

A hefty mains-frequency transformer is used in analog CNC plasma cutters that require more than 2 kilowatts.

Inverter plasma cutters convert the mains supply to DC, then fed into a high-frequency transistor inverter that operates at frequencies ranging from 10 kHz to 200 kHz.

High transmission frequencies allow for a smaller transformer, which reduces overall size and weight.

MOSFETs were initially employed, but IGBTs are currently being used more frequently. If one of the paralleled MOSFETs activates early.

It can cause a cascading failure of one-quarter of the inverter.

IGBTs, a later development, are not as prone to this failure scenario.

IGBTs are commonly used in high-current devices where there aren’t enough MOSFET transistors to parallel.

A dual transistor off-line forward converter is the name for the switch-mode topology. Many inverter plasma cutters, especially ones without power factor correction, cannot be powered by a generator while being lighter and more powerful (that means the manufacturer of the inverter unit forbids doing so.

It is only valid for small, light portable generators.

Newer models, on the other hand, contain internal circuitry that allows them to run on light power generators without power factor adjustment.

How Do You Check the Quality of a CNC Tube Cutting Machine?

Here are some essential factors to consider when purchasing a CNC plasma cutting machine:

  • Material

Examine the frame’s materials to verify if they are of acceptable quality.

Is it constructed of steel? Aluminum? Is there anything more I should know?

Because steel is more durable than aluminum, high-quality CNC plasma cutting stainless steel machines will consume less material and be lightweight, but they will appear flimsy.

Aluminum CNC plasma cutting machines will be larger, but they will appear to be more sturdy.

  • Table Design

Check the design of the table for quality.

Many factors can influence the table’s efficiency, and even the simplest adjustment in even the tiniest constituent can have an impact.

Controlling the torch with high speed and accuracy is difficult if the gantry (the huge, heavy bar that runs up and down the table length) is overly heavy.

However, a lightweight gantry can attain extraordinary accuracy at high speeds.

How to Use a CNC Pipe Cutting Machine?

Whether you are a newbie or a CNC machinist, you must follow the 7 recommendations to operate the plasma cutting machine.

  • Place the plate to be cut on the worktable in a proper location so that it does not contact the track.
  • Compile the program according to the drawing or software, and if necessary, cut the empty car to ensure that the programming is correct.
  • Start the plasma cutter first, then locate the entrance point, change the cutting parameters, turn on the air source, start the plasma cutter, and enter the cutting program.
  • Standing on the cut plate and rack rail during cutting is strictly prohibited, and electrical, and transmission components must not be disturbed.
  • Standing on the cut plate and rack rail during cutting is strictly prohibited, and electrical, and transmission components must not be disturbed.
  • Keep the transmission rack, guide rail, and transmission steel belt clean to ensure operation precision.
  • Cleaning and maintaining the control console should be given special care, and processing and programming should be done with the advice and support of expert and technical personnel.
  • When utilizing cranes to raise plates, follow all safety technical operating standards for crane and ground (hook) operations, and work closely together.
Which Factors Determine the Precise Working of a CNC Plasma Pipe Cutting Machine?

Working gas, cutting speed, cutting current, nozzle height, and arc power are five critical elements that determine the precision of plasma cuts.

Let’s start studying them so you can achieve better plasma cuts with your plasma cutter.

  • Working Gas

The working gas and flow rate primarily influence the cutting quality.

At the moment, air plasma cutting is just one of numerous working gases available. Because of its inexpensive cost of operation, it is widely used. The impact is definitely lacking.

Gas and auxiliary gas make up the working gas.

Arc starting gas is also required by some devices.

The proper job is usually chosen based on the type of cutting material, thickness, and gas cutting process.

Argon, nitrogen, oxygen, air, H35, argon-nitrogen mixed gas, and other working gases are often used.

  • Plasma Cutting Speed

In addition to the impact of working gas on cutting quality, cutting speed has a significant impact on the processing quality of CNC plasma tube cutting machines.

The best cutting speed range can be established by experiment or by following the equipment description.

A minor increase in cutting speed can improve the cut quality, resulting in a slightly narrower cut, smoother cut surface, and less distortion.

Because the cutting speed is too quick, the linear energy of the cutting is less than what is required.

The molten cutting melt cannot be swiftly blown away by the jet in the slit, resulting in a substantial amount of trailing drag decline.

  • Plasma Cutting Current

Cutting current is a crucial cutting process factor that defines the thickness and speed of the cutting, or cutting capacity, which affects the proper usage of a plasma pipe profile cutting machine for high-quality fast cutting.

As the cutter current rises, the arc energy rises, the cutting capacity rises, and the cutting speed rises in lockstep.

The width of the arc rises as the cutting current increases, and the arc thickens, making the cut broader.

  • Nozzle Height

The gap between the nozzle proximal end and the cutting surface, which is a component of the arc length, is referred to as nozzle height.

A continuous current or steep drop external power supply is typically used for plasma arc cutting.

The current varies little as the nozzle height is increased, but it does lengthen the arc and cause the arc voltage to rise, hence boosting the arc power.

The energy lost by the arc column rises as the arc length exposed to the environment expands.

  • Arc Power

The cutting nozzle employs a smaller nozzle aperture and a larger hole length and intensifies the cooling effect to generate a highly compressive plasma tube cutting arc.

It can enhance the current flowing through the nozzle’s valuable cross-section, thereby increasing the power density of the arc.

Compression, on the other hand, increases the arc’s power loss.

As a result, the actual effective energy required for cutting is less than the power supplied by the power source.

The loss rate is usually between 25% and 50%.

Water compression plasma pipe cutting is one way.

Because the rate of energy loss will be higher, this issue should be considered while designing cutting process parameters or calculating cutting costs economically.

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