Company Profile
Hubei Meisar CNC Technology Co., Ltd focus on metal sheet and tube processing, specialized in developing, manufacturing distributing and servicing globally kinds of portable CNC plasma flame cutting machines, gantry CNC plasma and flame cutting machines, table CNC plasma and flame cutting machines, pipe CNC plasma and flame cutting machine, fiber CNC laser cutting machines which are using in metal sheet and tube cutting.
Why Choose Us?
Professional Team
Hubei Meisar CNC Technology Co., Ltd own a large number of specialists and outstanding technicians engaged in mechanical, electrical automation controlling technology, electronic information engineering and computer software.
Safety Assurance
Hubei Meisar CNC Technology Co., Ltd have had the international experience over 15 years on cnc plasma and flame cutting machines, have oversea distributor in Taiwan, India, Malaysia, Sri Lanka, Mexico etc, can offer local consulting. Sincerely thanks every friends' trust, looking forward to you becoming one member of we family.
Customization requirements
Hubei Meisar CNC Technology Co., Ltd is committed to build the brand of the high end but practical cnc cutting machines, with options of cutting way and cutting capacity.
Complete After-Sale Service
Meisar CNC is with a vision of 15 years and the frontiers of the cnc cutting machines manufacturing and related.
Related Product
With good rigidity. 2.All weldings are vibration aging destress treatment, effectively prevent structural deformation;
Portable CNC Oxy Fuel Cutting Machine
Portable cnc oxy fuel cutting machine by Hubei Meisar CNC is the most classical and economical gas CNC cutting machine.
Cutting material: Kinds of metal, especially for mild steel, medium carbon steel, stainless steel etc.
Cnc flame cutting machine gantry type MS-G by Hubei Meisar CNC is the most efficient metal sheet CNC cutting machine.It provide your fabrication shops with the most efficient metal sheet CNC cutting solutions.
Mini Cnc Metal Cutting Machine
1.Cutting way: flame and or plasma 2.Effective Cutting Range: 59" × 118" (1500mm × 3000mm) or customized 3.Max Cutting Thickness: 5-29/32" (120mm)
Carbon steel categories: Carbon steel generally can be divided into 3 categories
Industrial Cnc Plasma Cutting Machine
This Industry cnc plasma cutting machine has CNC function like the gantry CNC cutting machine; it can cut any complex plane figure,
Gas cutting machine portable type, with oxygen fuel gas cutting, to offer you the metal plate cutting.
What is Gas Cutter?
Gas cutting is done by preheating a spot on ferrous metal to its ignition temperature and then burning it with a stream of oxygen in the manner.The necessary temperature is maintained by means of gas flames obtained from the combustion of a fuel gas and oxygen. The commonly used fuel gases are acetylene (C2H2), hydrogen, natural gas, which is largely methane or CH4, propane (C3H8), or butane (C4H10);. The most popular is acetylene.
Benefits of Gas Cutter
Versatility: Can cut a wide range of thicknesses, from thin sheets to thick plates.
Portability: Gas cutting equipment is relatively portable and can be used in various locations, including outdoor and remote sites.
Cost-Effective: Equipment and consumables are generally affordable compared to other cutting methods.
Excellence in cutting thick metals, such as cutting carbon steel 2 inches to 6 inches thick at high cut speeds
The ability to equip your machine with multiple oxy-fuel torches to increase productivity and minimize processing time
Smooth, vertical planes of cut that create metallurgically perfect oxidized surfaces
Carbonizing and hardening within the heat-affected zone
Components of Gas Cutter
Gas cylinders
Containers filled with oxygen and fuel gas, connected to the cutting torch via hoses.
Cutting torch
The handheld device that delivers the oxygen and fuel gas mixture to the workpiece and directs the cutting flame.
Regulators
Devices used to control and regulate the flow of oxygen and fuel gas from the cylinders to the cutting torch.
Gas hoses
Flexible hoses that connect the gas cylinders to the cutting torch, allowing for mobility and flexibility during operation.
Cutting tips
Replaceable tips attached to the cutting torch, designed to produce different flame sizes and cutting speeds based on the material thickness and type.
Ignition system
Mechanism for igniting the oxygen-fuel mixture to initiate the cutting process.
Oxy-cutting fuels are among the most flammable and require proper safety precautions for storage and usage. Acetylene is hazardous above 15 psi pressure, as it becomes unstable and explosively decomposes.
One should never use concrete as base for cutting since concrete holds water. When the cutting torches heat makes contact with the concrete, the heat will cause the water in the concrete to expand and the concrete to explode.
Take extra caution and time when cleaning the tips of cutting torches. Make sure the orifice is always free of any debris and smooth. Use protective welding gear at all times and welding screens. Make sure you are using the right size tip for the job and that the tip matches the fuel use.
Hoses should regularly be checked for fuel leaks. In addition, using the wrong kind of hose for a particular fuel will deteriorate your hose over time. While some welders have found they can occasionally use a fuel such as propane with an acetylene hose, the best long term solution is to use the proper hose with each type of fuel.
If your hose leaks, fuel gases that are denser than air (Propane, Propylene, MAPP, Butane, etc...) will most likely collect in lower areas and present a flame hazard, especially in basements, sinks, storm drains, and other enclosed areas. Cutting fuels are made to burn, so take proper precautions with your work clothing, location of fire extinguishers, ventilation, and equipment maintenance.
Gases Used for Gas Cutting
Gas cutting is a key process for producing essential items in many fields, including shipbuilding, construction and medicine. It has a number of applications, from using gas cutting on welding deformations to metal fabrication. There are three main elements to consider when distinguishing between the different types of gas cutting - the highest flame temperature, the volume of gas required for combustion, and the level of heat the combustion produces.
Thanks to their various advantages, five types of gas are commonly used for cutting:
Propane has a low peak heat level but a higher area of effect since the heat surrounding the nozzle extends greatly. This makes the cutting flame more spread out, but propane's cutting speed is impressive. However, the low heat level makes the piercing speed significantly slower.
Acetylene has the highest flame temperature, reaching around 3600 degrees Celsius, which also means it's the fastest gas-cutting type. Unlike propane, acetylene is focused on the inner core. It lowers the distortion percentage and reduces the area of the metal affected.
Natural gas has heat distribution levels of around 1,490 kilojoules per cubic meter (kj/m3) and a peak flame temperature of 2770 degrees Celsius. The low heat distribution levels, low peak flame temperature and slow piercing speed make natural gas a low-performance option.
If you need a gas with high pressure levels, such as for underwater cutting, MAPP is an excellent option, which is a mixture of methylacetylene, propadiene and other hydrocarbons. That said, the cutting speed is relatively average. The peak flame temperature is around 2900 degrees Celsius, but it has high release levels of around 15,445 kj/m3 for primary flames.
Propylene is a liquid petroleum gas that has a high level of heat release of around 72,000 kj/m3 in the outer cone. Its flame temperature is just under 2900 degrees Celsius, similar to that of MAPP. The peak flame is average and it also has a high fuel gas volume requirement, which could be an expensive cut.
Oxy-Fuel vs Plasma Cutting Systems
|
Plasma arc cutting |
Oxy/fuel cutting |
|
|
Metals |
Plasma cuts any electrically-conductive metal (steel, aluminum, copper, stainless steel, etc.) from very thin (<3/8 in.) up to 2 inches. |
Oxy/fuel cuts ferrous (iron-containing) steels up to 24 in. thick. Metals such as aluminum and stainless steel cannot be cut with Oxy/fuel due to the formation of an oxide that prevents oxidation from fully occurring. |
|
Industries |
Common in metal fabrication, construction, agriculture, maintenance, automotive repair, metal art, sculpting, home hobby and DIY applications. |
Agricultural, fabrication, construction, maintenance repair, mining, automotive, hobbyists, DIY applications. |
|
Preheating |
Not required |
Required |
|
Productivity |
Plasma cutting works exceptionally well on thinner materials (<1/2 in.), depending on the output of the power source. It can also cut stacked material and works well on expanded metals. Prep time is minimal with no preheating requirements. Produces a small and precise kerf (cut) width. Features a small heat-affected zone that prevents warping and damage. Cleanup is rarely needed as dross is cleanly blown away. |
Oxy/fuel is capable of efficiently cutting metals up to 24 in. thick. It is not dependent on a primary power source. Fuel gas and tip design options enhance performance. |
|
Portability |
Portability varies based on technology, size of power source and size of air tanks (if not using a built-in air compressor). Many units can work efficiently in the field off of engine-driven generators and a variety of primary power sources thanks to primary power management technologies offered in some plasma cutters. |
Highly portable and is not dependent on a primary power source or compressed air – capable of cutting anywhere with gas tanks and torches. |
|
Versatility |
Stack cutting, beveling, shape cutting, gouging and piercing of metals is possible with plasma cutters. |
With a combination torch, oxy/fuel systems can be used for heating, brazing, soldering welding, gouging, riser cutting and bending metals |
|
Safety Concerns (Operated properly, each tool is safe and effective. Improper use can lead to the following problems.) |
Electrocution; fires started by sparks; cutting in and around combustible materials; damage to protective clothing, skin and tissue if used improperly. Always wear appropriate clothing. |
Flashbacks; fires started by sparks, cutting in and around combustible materials, damage to protective clothing, skin and tissue if used improperly. Always wear appropriate clothing. |
Fuel Gas Characteristics
|
Fuel gas |
Maximum flame temperature (°C) |
Oxygen to fuel gas ratio (volume) |
Primary heat distribution (kJ/m3) |
Secondary heat distribution (kJ/m3) |
|
Acetylene |
3,160 |
1.2:1 |
18,890 |
35,882 |
|
Propane |
2,828 |
4.3:1 |
10,433 |
85,325 |
|
MAPP |
2,976 |
3.3:1 |
15,445 |
56,431 |
|
Propylene |
2,896 |
3.7:1 |
16,000 |
72,000 |
|
Hydrogen |
2,856 |
0.42:1 |
||
|
Natural Gas |
2,770 |
1.8:1 |
1,490 |
35,770 |
Acetylene has the highest flame temperature and highest primary heat distribution of the common fuel gas types. Propane has a lower flame temperature than acetylene but it is the highest for secondary heat distribution. Natural has the lowest flame temperature and the least primary and secondary heat distribution.
How Is Flame Cutting Performance Increased?
Preparation
Safety measures: Ensure proper safety equipment is used, including goggles, gloves, and protective clothing.
Setup: The cutting torch is prepared, and the workpiece is positioned securely.
Heating the steel
The cutting torch is ignited to produce a flame. The flame is adjusted to achieve the right temperature, which is typically around 3,500 °c (6,332 °f).
The tip of the torch is moved close to the steel surface to preheat it. This heating raises the temperature of the steel to its ignition point.
Oxidation
Once the steel reaches a red-hot state (approximately 1,200 °c or 2,192 °f), pure oxygen is introduced through the cutting torch.
The high-temperature steel reacts with the oxygen, creating iron oxide (slag), which is formed as the metal burns away.
Cutting action
The oxygen stream is directed onto the heated area. The intense heat and oxygen cause the steel to oxidize rapidly, effectively "Burning" Away the metal.
The molten iron oxide (slag) is expelled from the cut, leaving a clean edge.
Control and movement
The operator controls the speed and direction of the torch to create straight cuts, curves, or intricate shapes as needed.
Consistent movement ensures that the cut is uniform and prevents the torch from overheating any specific area.
Finishing
After cutting, any remaining slag can be removed with a chisel or grinder to smooth the edges of the cut steel.
Our Factory
Ubei Meisar CNC Technology Co., Ltd international department have oversea branches distribute in China Taiwan, India, Malaysia, Sri Lanka, Mexico etc. The High quality cutting equipment had been used all over the world, say, German, Taiwan, Finland, Norway, Russia, India, Indonesia, Thailand etc, the application involved machine tools, machinery, ships, chemical, petroleum, and other fields.
FAQ
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