How to correctly replace the protective lens of the laser cutting machine?-Eliza

How to correctly replace the protective lens of the laser cutting machine?

How to correctly replace the protective lens of the laser cutting machine?

The protective lens is a very important precision component in the optical path system of a laser cutting machine. Its cleanliness has a great influence on the processing performance and quality of the laser cutting machine.

Things to prepare

Dust-free cloth, anhydrous alcohol with a concentration of more than 98%, dust-free cloth cotton swabs, masking paper, new protective lens, hexagonal wrench, protective lens locking tool.


Replacement steps

1. Wipe

Moisten the dust-free cloth with alcohol (close the lid of the alcohol bottle in time to avoid accidentally knocking over), and gently wipe around the protective lens with the dust-free cloth. The purpose of this process is to prevent dust from entering the cavity during disassembly.

2. Remove the lens

Use a hex wrench to remove the hex screws, then gently pull out the protective lens insert, and seal the cavity with masking paper to prevent dust from entering. Insert the protective lens locking tool into the hole on the back of the protective lens card, rotate counterclockwise to remove the protective lens, and then insert the block to pour the lens onto a dust-free cloth.

3. Clean

Gently wipe the inside of the protective lens insert with a lint-free cloth face to clean it.

4. Replace the lens

Take out the new protective lens, tear off the protective paper on one side, and then gently cover the protective lens insert on the protective lens, turn it over, and then tear off the protective paper on the other side of the lens, and install the pressing sheet and the locking ring in turn. Use the protective lens locking tool to lock the insert clockwise.

5. Installation

Tear off the textured paper, gently insert the protective lens insert into the cavity, and tighten the hexagonal screws.


The lens replacement is complete! Have you learned it?


Any questions, just feel free to contact us.

My email:

My Whatapp: 008613173025103  My Skype: xtlaser01

Operating costs of fiber laser cutting machine–Oriole

Operating costs of fiber laser cutting machine

Nowadays, with sience and technical develop quickly, more and more people choose laser machine to cut, weld, mark, clean metals. Today, we will show you the operating costs of the fiber laser cutting machine. It includes 3 main parts: electric power, auxiliary gas and spare parts.

  • First of all, electric power.

Real machine runing cost occupy 60%-70%. 1500w Raycus XTC-1530HT rated power is 24kw,
the real electric power cost is 14.4-16.8kw/h (including the water chiller).

  • What’s more, auxiliary gas:

Oxygen, Nitrogen, Compressed Air
Standard oxygen or nitrogen gas bottle is 40L/bottle
1mm Carbon steel  40L/40minutes; 2mm Carbon steel 40L/50minutes; 3mm Carbon steel 40L/60minutes;
4mm Carbon steel 40L/70minutes; 5mm Carbon steel 40L/80minutes; 6mm Carbon steel 40L/90minutes.

Oxygen is used to cut carbon steel, can increase combusting speed and accelerating cutting speed.
Nitrogen is used in cutting nonferrous metal, like stainless steel and aluminum. It can avoid them turn black.
Compressed Air is used to cut aluminum, stainless steel, galvanized steel sheet, etc. It can provided by
Air Compressor, the price is low. It nearly same as Nitrogen’s efficiency. The cutting surface appears yellow.

  • Last but not least, spare parts.

Main quick wear parts includes nozzle and protective lens, their consumption is about 20-30 pieces one year.
Focus lens, Colimataing lens and Ceramic rings needn’t often change. You can prepare one set for spare.($350)

Here is a list for service life of consumable parts on a fiber laser cutting machine for your reference.

No. Name Quantity Time Hours USD/Piece Remark
1 Nozzles 1 300-500 hours 10 Better environment, longer using time.
2 Protective lens 1 300-500 hours 15
3 Focus lens 2 4000 hours 150
4 Collimataing lens 2 4000 hours 150
5 Ceramic rings 1 4000 hours 50

Above is the operating costs of fiber laser cutting machine, there are many important things of using a laser cutting machine, any other need, please contact us for details.



Application of fiber laser cutter in Stainless Steel industry-Serena

Application of fiber laser cutter in Stainless Steel industry

Here share with you the Application of fiber laser cutter in Stainless Steel idustry.

Laser cutter for steel has become the main means of metal processing in modern enterprises.

Laser cutting is to use the focused laser beam.It has high power density to illuminate the workpiece.So that the irradiated material.Like quickly melts, vaporizes, ablates or reaches the ignition point.At the same time.The beam coaxial high-speed airflow.It blow away the molten material.So as to achieve the workpiece cut.

Stainless steel is widely used in the decoration engineering industry.Due to its characteristics:

Firstly,strong corrosion resistance.

Secondly,high mechanical properties.

Thirdly,long-lasting surface fading.

Finally,color change due to different lighting angles.

Traditional processing methods need to go through a lot of procedures.Such as cutting, folding, bending, welding, etc.Firstly,low processing efficiency.Secondly,forming quality.Finally,it can rarely meet the needs of mass production.Steel laser cutter has good beam quality.High cutting precision.Smooth cutting surface.It is not restricted by any cutting shape.Its production efficiency is 5-10 times.It is higher than the traditional processing method.And the profit level is 3-5 times.It is higher than that of traditional enterprises.Laser cutting system is constantly improving:

1 New and high technology.

2 Information technology.

It has produced a huge boost to the stainless steel decoration engineering industry.

XT LASER provide you more choice of fiber laser cutter.With any interest,pls contact us.

Jinan Xintian Technology Co., Ltd.

Fiber Laser Cutting Machine-Eliza

Fiber laser cutting machine

1) Fiber laser cutting machine is with is with High-quality laser optics system.

2) Efficient and stable programing and control system, easy to learn. Compatible with many kinds of

CAD files and formats.

3) Energy-saving and cost saving. Laser machine is stable and easy to maintain.

4) High-efficient cutting and good cutting effect. No noise and no vibration. Speed can be up to 10 m/min

when cutting thin metal sheet. Qulaity of cutting edge is excellent.

5) Imported servo motors, this will make sure to much more improve stability and reliability of laser

machines. At same time it can ensure precision of processing.


Laser machine’s laser Source IPG/RAYCUS/nLIGHT

nLIGHT , Raycus, IPG , are three popular band laser source in market,
Raycus and IPG are for normal metal, such as carbon steel, stainless steel , galvanized sheet .etc, not high reflective metal.
But some clients want to cut some high reflective metals, such as aluminium, copper, brass, etc.
If use Raycus or IPG to cut high reflective metal, laser source will alarm, and do harm to laser source, because laser beam will return back to laser generator.

But nLIGHT laser source, it has Back-reflection isolation, so it can not only cut carbon steel, stainless steel , galvanized sheet .etc, not high reflective metal, and  high reflective metals, such as aluminium, copper, brass, etc.

The advantages of IPG

Firstly, high photoelectric conversion rate, it can reach 45%, other brands are only about 25%.

Secondly, German brand ,good quality,laser power weakened slower than other brand.

Thirdly, high market share, a certain degree of reaction to brand strength and quality.

Fourthly, low failure rate, only 3%.

Finally, after-sale service spots all over the world, problems can be resolved in time.



Laser machine’s water-cooling machine

Cooling the laser source and cutting head, maintain normal temperature to ensure the normal operation of the fiber laser cutting machine, to ensure the best cutting effect.

water pipe

We are using to different colors for the water chiller’s pipe, orange pipe means water go inside; blue pipe means water go outside. Two different color can help you recognize easily if you need fix some parts by yourself.

My Whatsapp: +86 131 7302 5103

My email:

Characters of laser cutting-fiber laser cutting machine advantages-Wendy

cutting effect

Characters of laser cutting-fiber laser cutting machine advantages-Cathy

Character a.

Good cutting quality. You can get quite well cutting quality only by one time cutting. Because of the small laser spot and the high energy density. The kerf of the laser cutting generally be 0.1-0.2 milometer. Width of the heat effective area is small.  Cutting geometry is good. The cross section of the kerf is more regular and rectangular. The cutting surface of laser cutting has no burrs. The surface roughness R can generally reach more than 12.5um. Laser cutting is even used as the last processing step. Generally, you can weld directly without further processing after laser cutting as the good cutting surface, or you can use the components directly.

Character b.

Fast cutting speed. Laser cutting speed is fast. For example, 2 kilowatt, 8 milometer thick carbon steel cutting speed is 1.6 meters/minute. 2 milometer thick stainless steel cutting speed is 3.5 meters/minute. When laser cutting, the heat effective area of the work piece is small. The deformation is extremely small. No need fix by clamp device, so can save the clamp device, also can save the clamping time.

Character c.

Material can be cut ranges width. Compared to flame cutting and plasma cutting, the material types that laser cutting can cut ranges width. Include metal, non-metal, metal based and non-metal based composite material and so on.

Character d.

Suitable for big work piece processing. The mold manufacturing fee of the big work piece is high. Laser cutting don’t need any mold. Besides, laser cutting can avoid the slump formed when the material is punched and sheared, which can greatly reduce company’s production cost.

Character e.

Clean, safe, no-pollution. The laser cutting process has low noise, low vibration and no pollution, which greatly improves the working environment of the operator.

Character f.

Not easy to affacted by electromagnetic interference.

“Small and Beautiful” Laser Cutting Nozzle, Which One Is Right for You?—Winnie

Active Gas Laser Cutting

Energy from the laser beam heats the material (mild steel) to above the ignition temperature in the reactive gas (O2).


Combustion-process Fuels the Burning of Iron Oxide

Once the kerf has been opened, material removal is from a nearly vertical erosion front (thin molten layer). Absorption of laser energy is predominantly at this liquid layer during the cutting processing. The layer loses heat by vaporisation, by ejection of liquid material at the lower surface, by conduction and by melting of solid material as the cut advances. In order to ensure the quality of the workpiece and the efficiency of the process, the selection of the proper conditions is very important, such as laser power, cutting parameters, cutting head and nozzle.



Striations-The slow cutting speed will cause the local thermal accumulation,which will lead to rough striations even side burns.

The Overview of Laser Cutting Nozzle

The nozzle is very important in laser cutting. Its main purpose is to deliver a gas jet such that the heat generated by the laser beam (and the resulting melt & vapour) is blown away, leaving a clean cut.

If the nozzle is poorly designed (& maintained), the gas jet will not have the required velocity or directional stability to remove the molten material.

Firstly, there are two basic designs: ‘Low Speed’ (gas velocity less than speed of sound) and ‘High Speed’ (velocities around the speed of sound). Secondly, there are many factors that affect nozzle performance nozzles, such as chamber pressure , nozzle diameter, internal shape, so nozzle exit shape and nozzle material.

Low Speed Nozzle VS High Speed Nozzle

Low Speed Nozzle


Laval High Speed Nozzle


Why high speed LC nozzles?

Some materials such as stainless steel and aluminium alloy are difficult to cut because their molten material is viscous and cannot be easily removed with low gas speeds.

High speed nozzles work on the same principle as a rocket or jet engine exhaust. The gas expands, pressure drops and the gas velocity accelerates to the design velocity at the nozzle throat region and accelerates to the supersonic gas velocity at the nozzle exit. The design velocity is determined by throat area, exit area, gas pressure, atmospheric pressure, nozzle inter shape and nozzle length.

The gas pressure along the axis of the jet can vary a great deal with changing of the stand-off distance in the low speed case and variation in pressure on the work-piece surface will affect the ability of the gas jet to remove molten material at the cut front.

Relationship between Surface Quality and Nozzle

Nozzle temperature: The high temperature of the nozzle will affect the capacitance of the ceramic ring so cause the instable stand-off distance, and which will lead to the uncontrollable cutting quality during the production.

Carbon steel oxygen bright surface cutting stable processing recommended nozzle selection

thickness(mm) recommend
12~14 1.2E~1.4Emm
16~20 1.4E~1.6Emm
22~30 1.6E~1.8Emm


Double-layer high-speed nozzle cutting effect

16mm CS Q235B

18mm CS Q235B

20mm CS Q235B

25mm CS Q235

Single-layer high-speed nozzle

                                                                                                                                                      30mm CS Q235B

                                                                                                                                               cutting speed 0.8~1m/min


Laser cutting machine daily maintenance points, common work problems and solutions–Winnie

Fiber laser cutting machine is an advance equipment, the price is generally very expensive. Every few tens of millions, but its ultra-fast processing speed, favored by many processing industries. Then, want to make good use of fiber laser cutting machine Performance, what aspects should you pay attention to?  The fiber laser cutting machine also has a lot of places to pay attention to in daily maintenance. Pay attention to the following items to ensure the stable performance of the fiber laser cutting machine!

The maintenance of the laser cutting machine can roughly performe from the following aspects:

Fan cleaning:

The long-term use of the fan in the machine will cause a lot of solid dust to accumulate in the fan, which will make the fan generate a lot of noise, which is also not conducive to exhaust and deodorization. When the suction of the fan is insufficient, the fan must be cleaned.

Replacement of circulating water and tank cleaning:

Before the machine works, make sure that the laser tube is filled with circulating water. The water quality and temperature of the circulating water directly affect the life of the laser tube. Therefore, it is necessary to periodically change the circulating water and clean the water tank. This is usually done once a week.

Lens cleaning:

There will be some mirrors and focusing mirrors on the machine. The laser light is reflected and focused by these lenses and emitted from the laser head. The lens is easily stained with dust or other contaminants, causing laser loss or lens damage. So clean the lenses every day.

When cleaning, pay attention to:

1. The lens should be wiped gently, so as not to damage the surface coating;

2. Handle gently during wiping to prevent falling;

3. Please keep the concave surface down when installing the focusing lens.

Fastening of screws and couplings:

After the motion system works for a period of time, the screws and couplings at the motion joints will loosen, which will affect the smoothness of the mechanical movement. Therefore, during the operation of the machine, observe whether there are abnormal noises or abnormal phenomena in the transmission parts, and find the problems in time Robust and maintenance. At the same time, the machine should use a tool to tighten the screws one by one after a period of time. The first solidification is about one month after the equipment is used.

Rail cleaning:

Guide rails and linear shafts are one of the core components of the equipment, and their functions are to guide and support. In order to ensure the machine has a high processing accuracy, it is require that its guide rails and straight lines have high guiding accuracy and good motion stability.

During the operation of the equipment, due to the large amount of corrosive dust and fumes produce by the workpiece during processing, these fumes and dust have deposite on the surface of the guide rail and linear axis for a long time, which has a great impact on the processing accuracy of the equipment and will Corrosion spots are formed on the surface of the linear axis of the guide rail, which shortens the service life of the equipment. So clean the machine guides every half a month. Turn off the machine before cleaning.

Inspection of light path:

The optical path system of the machine is complete by the reflection of the mirror and the focusing of the focusing lens. There no offset problem in the focusing lens in the optical path, but the three mirrors are fixe by the mechanical part, and the possibility of offset is large.

Although there is usually no offset, it is recommende that users check whether the optical path is normal before each work.

Laser drilling process–Winnie

Laser drilling is a laser processing technology that uses a high-power-density. Short-time stay (less than laser cutting) pulse heat source to perform drilling. The aperture can  formed by single or multiple pulses.
In the punching process, a small hole of sufficient size is first prepare using the punching mode, so that the subsequent cutting process starts from here. The drilling or penetrating process requires a repeatable pulse laser beam with high peak power, which is also achieve with a high air pressure. After the workpiece penetrates, the laser beam cuts through the peak power and even changes to a pulse-free mode.
The solid-state laser has a short wavelength and can achieve high-intensity pulse output, so it is more suitable for laser drilling, such as Nd: YAG laser, Nd: glass laser, and Nd: ruby ​​laser.
CO2 lasers are commonly use to make holes in non-metallic materials, such as ceramics, composites, plastics or rubber. Laser drilling of metal materials requires pulsed lasers, and the beam focusing power density should be above 10 ^ 5 W / mm ^ 2 (6.5 W / in. ^ 2 × 10 ^ 7 W / in. ^ 2).
Focusing of the laser beam.

Laser drilling process

In the laser drilling mode, a short focal length lens is need to focus the high peak power beam of the pulsed laser on a spot of the order of 0.6 mm in diameter to achieve the power density level required for drilling.
Low divergence of the laser beam can  achieve with specific laser resonators. The beam diameter can controlle by changing the aperture of the focusing device. Therefore, the aperture can be used to increase the energy density of the focused beam and increase the intensity distribution of the beam.
Advantages of laser drilling technology

Laser drilling has most of the advantages of laser cutting. It only needs to make a certain angle between the light beam and the surface of the material to achieve the laser beam intake and drilling, which effectively avoids the occurrence of impact and breakage events caused by structural interference during mechanical processing.

Other laser drilling advantages

1. Short opening time

2. Strong automation adaptability

3.Can be used for penetrating processing of difficult-to-open materials

4. Compared with mechanical drilling, there is no mechanical wear between the workpiece and the workpiece during the drilling process.

Laser drilling is the earliest practical laser processing technology and one of the important application areas of laser processing. Laser drilling is mainly used for metal materials such as steel, platinum, molybdenum.  Tantalum, magnesium, germanium, silicon, light metal materials such as copper, zinc, aluminum. Stainless steel, heat-resistant alloys, nickel-based alloys, titanium, platinum.  And common hard alloys Materials and ceramic substrates, artificial stones, diamond films, ceramics.  Rubber, plastics, glass, etc. in non-metallic materials.

The Most Neglected Details Of The Fiber Laser Cutter-Anne

    The Most Neglected Details Of The Fiber Laser Cutter

Fiber laser cutter is a laser cutting machine using fiber laser generator as light source.

Optical fiber laser is a new type of optical fiber in the world.
which outputs high energy density laser beam and gathers on the surface of the workpiece.
which makes the workpiece melt and gasify the area illuminated by the ultrafine focus spot instantaneously.

However, fiber laser cutting machine is not omnipotent, no matter how perfect the equipment will also have its shortcomings, we should not only see its superior processing performance, but also pay attention to its own current limitations, such as processing material attribute restrictions, strict processing specifications, and so on.

First of all, the fiber laser cutting machine processing category.

Before the fiber laser cutting machine mainly belongs to the metal laser cutting machine processing category, so the main cutting metal, such as stainless steel, carbon steel, alloy steel, silicon steel, spring steel, aluminum, aluminum alloy, galvanized plate, acid washing plate, copper, silver, gold, titanium and other metal plate and pipe cutting.

But with the development of technology, the technology of non-metallic cutting in plastics, composites and plexiglass has also matured.

Secondly, fiber laser cutting machine does not recommend long-term cutting aluminum, copper and other rare metal materials, although the processing of these materials are really good.

but because these materials belong to high-reflective materials , the long-term action on these materials may affect the service life resulting in the subsequent processing effect is not good.

It will also increase the use of consumables.

Finally, the laser cutter is based on its high power Small difference, cutting thickness also changes.

The greater the power, the greater the cutting thickness;

The thinner the metal material, the faster the cutting speed. Tthe laser cutter for thin plate cutting advantage is very obvious.

Sales Manager:



Fiber laser cutter running cost-Bonnie

Fiber laser cutter running cost

Now there is many different metal cutting equipment in the market. Fiber laser cutting machine is one of the most advanced solution.

It is becoming more and more popular as its excellent cutting effect and low running cost. Compared with tradition cutting equipment, fiber laser cutter should be the most economic machine.

Fiber laser cutter may include 3 parts running cost, electric power, auxiliary gas and quick wear parts.

First, Electric power cost for fiber laser cutting machine

There is three main part need use electric power, laser source, machine bed and water chillier. Follow date based on 1000w fiber laser source.

We know fiber laser source have very high photoelectric conversion, and it is about 25%. So one set 1000w laser source will cost 4kw power per hour. About machine bed, the main electric power cost parts are servo motor, reducer and control system, and  servo motor is main. Now we total use 4 sets servo motor for 1500*3000mm fiber laser cutting machine. Its total power is about 4kw.  Water chiller also have high power cost, for 1000w laser source, the suitable chillier will cost about 3kw per hour. In this case, one set 1000w fiber laser cutter’s total power cost is 11kw.

But actually, one machine’s real cost is only about 60%. As it is not possible if all parts keep running with full power. So one 1000w fiber laser machine only cost about 6.6kw/hour. We get this date from thousands of test. Nearly no any machine can cost less then fiber laser.

Sencond, Auxiliary gas

Fiber laser cutting need use auxiliary gas. Mild steel need use O2 gas, and other metals main use N2 gas. Also we can use compressed gas when cut thin ss and ms less than 2mm. Auxiliary gas cost have relation with metal thickness, so we can’t list it here, and just some recommend for reference.

According to our experience and customers’ feedback,  liquid nitrogen and  liquid oxygen is better. First, liquid gas is cheaper. Second, each tank have some rest when using. As its pressure become low so that we can’t use it on running. But when we use liquid gas, it is one big tank, no need change tank always. So all gas will be use.

Third, Quick wear parts

Fiber laser cutting machine quick wear parts main include protective lens, focus lens, nozzle and ceramic rings. Their lifetime is about 500 hours and Ceramic rings lifetime is about 1 year. Protective lens and nozzle is cheap and about 15~30usd/piece. Ceramic ring not more than 100usd/piece. Focus lens is about 150usd/piece.

Except above cost, fiber laser cutting machine near have no any other running cost. Even its price is very high when we buy, but running cost should be the cheapest.