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Frequently Asked Questions

Technical questions & solutions for each laser equipment series

Tip: If you cannot find your answer, please click the button below to contact our technical engineer.
What power laser source should I choose for carbon steel cutting?▼
For carbon steel: 1500W for ≤5mm; 3000W for ≤12mm; 6000W for ≤20mm; 12000‑30000W for 20‑35mm thick plate. Thicker material requires higher laser power and suitable assist gas pressure.
Why are burrs or dross generated on cutting edges?▼
Common causes: improper cutting speed, insufficient gas pressure, damaged nozzle, wrong focus position, contaminated protective lens. Please check nozzle wear status, re‑calibrate focus, increase assist gas pressure or reduce cutting speed.
What assist gas is recommended for different metal materials?▼
Carbon steel: oxygen for thick plate, nitrogen for bright‑edge thin plate. Stainless steel / aluminum alloy: high‑purity nitrogen to achieve oxidation‑free cutting. Air cutting is available for low‑requirement thin sheet.
What cooling water requirement for fiber laser cutter chiller?▼
Must use de‑ionized water or purified water. Tap water is forbidden because it creates scale inside laser source. Change cooling water every 1‑2 months, keep water temperature between 22‑28℃.
Cutting head collision alarm, how to handle emergency?▼
1. Press emergency stop & reset button; 2. Inspect nozzle for deformation or crash damage; 3. Remove obstacles and flatten sheet material; 4. Re‑calibrate capacitive height sensor before restart cutting task.
Which drawing file formats are supported by the cutting system?▼
Main supported formats: DXF, DWG, PLT, AI. Please convert your design file into DXF/DWG before import. Complex vector graphics should remove redundant overlapping lines to avoid cutting error.
Can one machine cut carbon steel, stainless steel and aluminum alloy?▼
Yes, same fiber laser plate cutter can process CS, SS, aluminum. But aluminum has high reflectivity; please set anti‑reflect protection parameters and use matched nozzle and high‑pressure nitrogen gas supply.
What is the daily maintenance checklist for plate laser cutter?▼
Daily: clean nozzle, check protective lens, drain water chiller filter, clean dust on guide rail. Weekly: lubricate linear guides & racks, inspect gas pipeline leakage. Monthly: check laser output power, tighten electrical terminal screws.
What voltage does fiber laser plate cutting machine need?▼
Standard machine adopts 3‑phase 380V 50Hz power input. We can customize internal transformer for local 415V / 440V 60Hz markets. Stable power supply with ground wire is strongly required for laser source safety.
What consumable parts need regular replacement?▼
Consumables: cutting nozzle, ceramic ring, protective lens, filter element for chiller. Wear speed depends on material and working hours. We supply original spare parts at factory cost price after warranty period.
How much floor space is required to install a fiber laser plate cutter?▼
For 1530 model, prepare around 6m×4m workshop area. Larger format such as 2560 or 6015 requires more space. The workshop floor should be flat concrete ground, avoid uneven soft ground which affects machine precision.
What is the difference between exchange‑table laser cutter and single‑table model?▼
Exchange‑table machine has two worktables. While one table is cutting, operators can load sheets on the second table, greatly save material loading‑unloading waiting time. Single‑table is lower cost for small‑batch production.
Does fiber laser cutting machine need foundation concrete pit?▼
Most flat‑bed fiber laser cutters do not require special foundation pit. Just level solid concrete floor. Ground‑rail large‑format heavy‑duty machines need reinforced concrete foundation according to our installation drawing.
Can laser cutting machine cut copper and brass metal sheets?▼
Yes, but copper and brass are highly reflective materials. High‑power laser source and special anti‑reflection cutting head are required. Low‑power machine cannot process thick brass or copper plates efficiently.
How long is the production lead‑time for laser plate cutter order?▼
Standard stock models can ship within 7‑15 working days. Custom special‑format, high‑power or exchange‑table machines normally take 25‑40 working days before delivery.
Do you provide overseas on‑site installation service?▼
We provide detailed English installation manual and remote online video guidance free of charge. Overseas engineer on‑site service is available but client needs to cover flight tickets, accommodation and service fee.
What is the maximum acceleration speed for fiber laser cutting machine?▼
Our standard model supports 1.0G‑1.5G acceleration. Higher acceleration improves cutting efficiency for many small graphic parts. High‑acceleration configuration increases total equipment investment cost.
Why laser machine shows "laser source communication failure" alarm?▼
Main reasons: loose communication cable connector, unstable power supply fluctuation, laser source internal fault. First power‑off restart whole machine, check network cable connection, if alarm still exists contact our technical support team.
Can I upgrade laser source power of my old plate cutter later?▼
In some cases power upgrade is possible. But cutting head, chiller capacity and control system parameters also need matching upgrade. Not all old machine hardware supports higher‑power laser source modification.
What kind of smoke exhaust system do I need for laser cutting workshop?▼
Fiber laser cutting produces metal fume and dust. We recommend centralized smoke extractor with filter cartridge. Regular replace filter cartridges, keep good ventilation inside workshop to protect operator health.
What tube shapes can laser tube cutting machine process?▼
Our tube cutter can cut round tube, square tube, rectangular tube, oval tube, angle steel, channel steel and special‑shaped profiles. Different chuck configurations cover tube diameter range from Φ20mm up to Φ400mm.
What problem will happen if tube clamping force is too tight or too loose?▼
Too‑tight clamping will deform thin‑wall pipe. Too‑loose clamping causes tube slipping and cutting position offset. You need to adjust chuck air pressure according to tube wall thickness and material hardness.
Can laser tube cutter cut thin‑wall galvanized steel pipe?▼
Yes, but galvanized layer produces large amount of zinc vapor fume. We recommend opening full‑power smoke exhaust system, optimize cutting speed and nitrogen pressure, and frequently clean protective lens to avoid contamination.
Why tube cutting produces tilted cut‑end?▼
Possible reasons: chuck concentric offset, tube bending deformation, mechanical backlash on rotating axis, wrong focus height. Re‑calibrate chuck concentricity, straighten raw tube material and adjust machine mechanical clearance.
What is flying cut function for tube laser cutter?▼
Flying cut means the chuck keeps rotating without stop during cutting process, greatly improves production efficiency for mass short‑tube parts. Suitable for carbon steel and stainless‑steel standard pipe processing.
Can I load long 6‑meter tube automatically?▼
Yes, optional automatic bundle loader supports 6000mm long tube automatic feeding. Manual feeding version is also available for small‑batch job to save equipment investment cost.
What is triple‑chuck tube cutting machine advantage?▼
Triple‑chuck structure reduces tube cantilever length, solves vibration problem for super‑long thin‑wall pipe, guarantees cutting precision for ultra‑long work‑pieces, especially good for 6‑meter thin‑wall profile production.
What maintenance points for rotary chuck of tube cutter?▼
Keep chuck jaws clean, remove metal slag and dust every shift. Regularly add grease for rotating bearing. Avoid cutting residue entering inside chuck body, otherwise clamping accuracy will drop rapidly.
Can tube laser machine cut solid metal bar?▼
Not recommended. This equipment is specially designed for hollow tube & profile. Solid round bar needs extremely high laser power and long cutting time; please choose plate‑type cutting solution for solid bar processing.
What gas do you suggest for stainless steel tube cutting?▼
High‑purity nitrogen gas is the best choice, which obtains non‑oxidation bright cutting section. If you have budget pressure, compressed dry air can work for non‑critical inner‑pipe application.
What is remnant length after tube cutting finished?▼
Remnant length depends on chuck model. Double‑chuck model leaves remnant about 80‑120mm. Triple‑chuck machine can reduce remnant leftover down to 20‑40mm and improve raw‑material utilization rate.
What CAD software can generate tube cutting drawing files?▼
SolidWorks, AutoCAD, Tekla Structure can export DXF files for tube laser machine. For complex 3D tube intersecting line cutting, professional tube nesting software is strongly recommended.
Does laser tube cutter support bevel cutting function?▼
Standard tube cutter is for vertical 90‑degree cut. Optional 3D bevel cutting head can do V, X, Y bevel for welding preparation. Bevel‑cut configuration increases total machine price obviously.
What is nesting software function for laser tube cutting?▼
Tube nesting software optimizes parts layout inside raw tube, minimize leftover remnant material. It auto‑calculates cutting sequence and avoids tube collision during processing. Our machine includes original tube nesting software for free.
What power consumption of fiber laser tube cutting machine?▼
Power consumption includes laser source, chiller, servo motor, air compressor and exhaust fan. A 3000W tube cutter total average power is around 18‑25kWh per working hour under full‑load production status.
Why tube parts have size deviation after batch cutting?▼
Reasons: chuck jaws wear out, tube raw‑material bending, mechanical clearance accumulate, temperature thermal expansion. Need calibrate chuck position and check original tube straightness before mass‑production.
Can laser tube cutter process square tube with inner burr?▼
Laser cutting still generates small inner dross inside square tube. For zero‑burr requirement you need add extra deburring machine for post‑process, laser itself cannot completely eliminate inner slag residue.
What environment requirement for installing laser tube cutting machine?▼
Workshop temperature recommend 10‑35℃, avoid heavy dust and high‑humidity environment. Keep machine far away from welding equipment or large‑power frequency converter which may cause electromagnetic interference.
What is difference between floating chuck and rigid chuck for tube cutter?▼
Floating chuck can auto‑adjust position when tube is bent, reduce deformation risk for thin‑wall pipe. Rigid chuck has higher clamping rigidity, better suitable for thick‑wall heavy‑duty profile cutting jobs.
Is it possible to retrofit old plate cutter into laser tube cutting machine?▼
Not recommended. Tube cutting needs independent rotating axis, special chuck assembly, tube nesting control program and mechanical anti‑collision logic. Retrofitting old plate cutter brings hidden precision and safety risk.
What metal materials can hand‑held laser welder weld?▼
Suitable for carbon steel, stainless steel, galvanized sheet, aluminum alloy, copper. Dissimilar‑metal welding between stainless‑steel and carbon‑steel is also achievable with proper parameter adjustment.
What thickness can 2000W hand‑held laser welder handle?▼
2000W model single‑pass welding thickness up to 2‑3mm for stainless steel; multi‑layer welding can reach 5‑7mm. Aluminum alloy needs higher power due to high thermal conductivity and reflectivity.
Can laser welding replace argon‑arc TIG welding completely?▼
Laser welding has faster speed, smaller heat‑affected zone, less workpiece deformation. But for deep groove thick‑plate full penetration weld, TIG auxiliary filling wire is still required for some complex structures.
Why welding seam produces pores and bubbles?▼
Workpiece surface has oil, rust, water vapor; shielding gas flow insufficient; gas nozzle offset away from welding pool. Please clean work‑piece surface, adjust argon shielding gas flow rate and keep nozzle stable distance.
Does hand‑held laser welder need welding wire?▼
For tight butt‑joint gap below 0.2mm, you can achieve self‑fusion welding without wire. If assembly gap is larger than 0.3mm, matching filling wire must be added to avoid incomplete joint.
What power‑supply for hand‑held laser welding machine?▼
1000‑2000W version supports 220V single‑phase household power. 3000‑6000W heavy‑duty model requires 380V three‑phase industrial power supply.
What safety protection should operator wear during laser welding?▼
Must wear special laser‑safety protective goggles, anti‑laser protective apron & gloves. Do not look directly at laser welding spark. Keep workshop well ventilated for metal fume exhaust.
Can hand‑held laser welder work for curved seam and corner welding?▼
Yes, flexible hand‑held welding gun can follow curve, corner, inner‑angle and outer‑angle positions, which is very suitable for cabinet, door frame, stainless‑steel decoration site welding job.
Why welding joint crack occurs after cooling?▼
Main reasons: thermal stress concentration, improper filling wire material, workpiece clamping stress. Optimize welding speed, use matched welding wire, reduce forced fixture clamping stress on workpiece.
What daily maintenance for hand‑held laser welder?▼
Clean protective lens of welding gun every day, check optical fiber bending condition, maintain chiller water quality, inspect shielding‑gas pipeline for leakage. Do not bend optical fiber cable with too‑small radius.
What shielding gas is best choice for handheld laser welding?▼
Argon gas is most widely‑used shielding gas for stainless‑steel and carbon‑steel welding. Helium‑argon mixed gas improves welding performance for high‑reflectivity aluminum alloy, but operation cost will increase.
How long is optical fiber service life of handheld laser welder?▼
Under normal operation without sharp bending or mechanical impact, optical fiber can work for 20000+ hours. Improper bending or collision will cause early‑stage optical‑fiber damage and power drop.
Can handheld laser welder do spot welding work?▼
Yes, machine supports spot‑welding mode. You set spot dwell‑time and laser power parameter. Spot welding widely used for sheet metal assembly, hardware fastener fixing production process.
What is difference between wobble welding head and ordinary welding head?▼
Wobble welding head makes laser spot swing side‑to‑side, it can tolerate larger assembly gap between two work‑pieces. Ordinary fixed‑spot head requires very tight fit‑up gap for self‑fusion welding.
Can handheld laser welder weld dissimilar metals like carbon‑steel to stainless‑steel?▼
Yes it can, but dissimilar‑metal welding produces inter‑metallic brittle phase. Need adjust welding speed, power and select suitable filler wire to reduce crack risk of welded joints.
What is the total power consumption of 2000W handheld laser welding machine?▼
Laser source rated power is 2000W, but average actual power consumption is about 3.5‑5kW including chiller and control cabinet. Power consumption changes with actual laser output duty‑cycle ratio.
Can handheld laser welder be moved around workshop frequently?▼
Machine has casters for convenient moving. But avoid violent shaking, do not drag optical‑fiber welding gun on ground. After moving position, double‑check chiller water level and cable connections before restart work.
Why welding bead turns dark and heavily oxidized after welding?▼
Shielding‑gas protection is insufficient. Possible causes: argon gas pressure too low, nozzle distance too far, gas flow blocked by dirt. Increase gas flow rate and keep nozzle close and stable above welding pool area.
Can handheld laser welding machine work outdoor at construction site?▼
Outdoor work is allowed but wind will blow away shielding‑gas and cause bad welding quality. Need build wind‑shield shelter on‑site, avoid rainy and damp weather to protect laser internal electric components.
What is warranty scope for handheld laser welder?▼
One‑year whole‑machine warranty. Consumable items like protective lens, nozzle are excluded. Optical‑fiber damage caused by man‑made bending or crash is not covered under warranty terms.
What contaminants can fiber laser cleaner remove?▼
Remove metal surface rust, oxide layer, paint coating, oil grease, welding black residue. It can clean before welding and post‑weld cleaning. Not suitable for deep‑penetration chemical corrosion damage base‑material.
Will laser cleaning damage original base metal surface?▼
Under correct parameter setting, only surface contaminant is vaporized; base‑material will not be damaged. If you set too‑high power or too‑slow scanning speed, substrate will get ablation marks.
What power should I choose for rust removal work?▼
Light thin rust: 1500W. Moderate mixed oil‑rust:3000W. Heavy thick rust & multi‑layer paint:6000W. Higher power brings larger cleaning width and higher working efficiency.
Difference between pulse laser cleaning and continuous laser cleaning?▼
Pulse laser: small heat input, best for precision parts, thin‑sheet surface cleaning, low risk base‑material damage. Continuous‑wave laser: high efficiency for heavy rust thick‑coating heavy‑duty industrial cleaning project.
Can laser cleaner remove old paint layer from steel structure?▼
Yes, continuous‑wave 6000W hand‑held laser cleaning machine can strip thick multi‑layer paint. It is environmental‑friendly without chemical solvent waste compared with sand‑blasting.
What safety points for laser cleaning operation?▼
Must use special laser protective goggles. The vaporized dust needs fume extractor system. Do not aim laser gun toward human‑body or flammable articles to avoid fire risk.
Can laser cleaning replace sand blasting completely?▼
Laser cleaning has no abrasive material consumption, no dust pollution. But for very deep pitting rust surface, sand‑blasting still obtains better surface roughness effect. Two technologies can be combined according to requirement.
Can I clean aluminum alloy oxidation layer with laser cleaner?▼
Yes, but aluminum oxide has high reflectivity. Need to adjust scanning speed & power parameter, prevent laser back‑reflection harm laser source internal optical components.
What is maximum scanning width of hand‑held laser cleaning head?▼
Standard hand‑held cleaning gun supports adjustable scan width from 10mm up to 600mm. Wide‑scan mode improves efficiency for large flat surface; narrow‑scan for partial local spot cleaning repair.
What is the daily maintenance work of laser cleaning machine?▼
Clean protective window lens on cleaning gun every shift; check optical fiber bending radius; maintain chiller water quality; keep smoke‑absorbing filter element clean, replace filter when suction capacity drops.
Can laser cleaner remove oil contamination on metal surface before welding?▼
Absolutely yes. Pre‑weld laser cleaning removes oil, rust and oxidation film, effectively reduces welding pore defects and improves welding seam quality greatly before welding process.
What is typical cleaning efficiency data for different power laser cleaner?▼
1500W pulse: 6‑10 ㎡/h for light rust; 3000W continuous:15‑22㎡/h moderate rust; 6000W continuous:30‑40㎡/h for heavy rust paint stripping. Real efficiency depends on contamination thickness.
Can laser clean plastic, wood or non‑metal material surface?▼
Our fiber laser cleaner is mainly designed for metal surface. Plastic and wood will burn or carbonize under laser irradiation. We do not recommend cleaning non‑metallic substrates with this machine model.
What power‑supply requirement for handheld laser cleaning machine?▼
1500W cleaner supports 220V single‑phase input. 3000W and 6000W heavy‑duty cleaning machine need stable 380V three‑phase industrial power supply with good grounding wire connection.
Can laser cleaning machine remove old thermal spray coating?▼
Thin thermal‑spray coating can be removed by high‑power continuous‑wave laser cleaner. Thick multi‑layer hard coating requires repeated multi‑pass cleaning process and careful parameter testing to avoid substrate damage.
What is difference between handheld laser cleaner and fixed automatic cleaning system?▼
Handheld type flexible for large‑size, irregular work‑pieces and field site operation. Automatic fixed cleaning head matches robot arm for mass‑production assembly‑line continuous industrial cleaning production.
Will laser cleaning produce harmful waste material?▼
Laser cleaning vaporizes surface contaminants into fine dust particles. You must equip fume‑collector dust‑filter system. Compare with sand‑blast and chemical cleaning, it reduces large‑volume solid or liquid hazardous waste output.
Why cleaning effect becomes weaker after several months of use?▼
Mostly protective lens contaminated or damaged, or optical‑fiber power attenuation. First replace protective window lens, if cleaning performance still poor, inspect laser source output power status with our remote technical support.
Can laser cleaner clean weld black oxide after welding process?▼
Yes, post‑weld laser cleaning removes black welding oxidation residue beside welding seam, replaces manual grinding wheel polishing, improves surface appearance and saves manual labor cost.
What ambient temperature environment can laser cleaning machine work in?▼
Recommended working environment temperature range 10‑38℃. Avoid high‑humidity, heavy‑dust workshop environment. Do not work under rain or dew condition to prevent internal electric circuit short‑circuit failure.
How does PSA nitrogen generator work for laser cutting?▼
PSA pressure swing adsorption technology uses carbon molecular sieve to separate nitrogen from compressed air. Produce high‑purity nitrogen on‑site, supply assist‑gas for fiber laser cutting machine, replace purchased high‑pressure nitrogen gas cylinders.
What nitrogen purity do I need for laser cutting stainless steel?▼
For bright oxidation‑free stainless‑steel cutting, recommended nitrogen purity ≥99.995%. Thick‑plate cutting requires even higher purity to guarantee bright cutting edge without yellow oxidation trace.
What supporting equipment does nitrogen generator need?▼
Must match screw air compressor, refrigerated dryer, multi‑stage precision filter, nitrogen buffer tank. Compressed‑air oil‑water pollution will damage molecular sieve and shorten service life of nitrogen‑making tower.
What flow rate nitrogen generator should match my laser cutter?▼
1500‑3000W laser: 10‑20 Nm³/h; 6000W laser: 20‑30 Nm³/h; 12000W‑30000W high‑power laser: need 40‑80 Nm³/h large‑flow nitrogen generator solution.
What pressure output can your nitrogen generator supply?▼
Standard output pressure 0.6‑0.8MPa. If your laser cutting requires higher gas pressure for thick plate, we can equip extra nitrogen booster to reach 1.6‑3.0MPa working pressure.
What is service life of carbon molecular sieve?▼
If compressed‑air pretreatment system works well without oil‑water pollution, molecular sieve service life can reach 8‑10 years. Oil contamination will cause permanent failure of molecular sieve and must be replaced in advance.
On‑site nitrogen generator vs nitrogen gas cylinder, which one is better?▼
For long‑term mass‑production factory, on‑site PSA nitrogen generator largely reduces running cost, no frequent cylinder transport & replacement trouble. Small‑batch intermittent workshop can still choose bottled nitrogen gas.
Why nitrogen purity drops gradually during running?▼
Possible reasons: filter element expired, compressed‑air with oil & moisture, sieve powder leakage, pressure valve failure. Check air pretreatment system first, inspect sieve‑tower sealing condition and pressure sensor.
Can nitrogen generator work continuously 24‑hours non‑stop?▼
Our PSA nitrogen generator is designed for 24‑hour continuous industrial operation. But air compressor and dryer also need regular maintenance to guarantee stable nitrogen‑gas quality output.
Can nitrogen generator be used for laser welding and laser cleaning?▼
Nitrogen can serve as shielding gas for laser welding. Laser‑cleaning generally does not consume large‑volume nitrogen gas. Main application of nitrogen generator is fiber‑laser cutting‑machine assist‑gas supply.
What are the key filter grades for compressed‑air pretreatment system?▼
Need three‑stage precision filter: remove large water droplet, remove fine oil aerosol, activated carbon filter for residual oil vapor. Without complete filtration system, molecular sieve will fail very quickly.
What is nitrogen buffer tank function for PSA nitrogen system?▼
Buffer tank stabilizes nitrogen outlet pressure, compensates instantaneous gas‑consumption peak when laser cutting starts. Without buffer tank, pressure fluctuation will cause unstable laser‑cutting quality.
What workshop space is needed to install complete nitrogen‑generator set?▼
Depends on gas‑flow model. 20Nm³/h whole set including compressor, dryer, filters, nitrogen‑host and buffer tank need around 5‑7 square‑meter flat ventilated workshop area.
Can nitrogen‑generator work under high‑altitude geographical environment?▼
High altitude area lower atmospheric air density will reduce actual nitrogen output flow rate. For high‑altitude region, we need over‑spec enlarge generator flow capacity during equipment selection stage.
What is difference between PSA nitrogen generator and membrane nitrogen generator?▼
PSA achieves high‑purity nitrogen up to 99.999%, suitable for laser metal cutting. Membrane‑type nitrogen generator cannot reach ultra‑high‑purity grade, it is used for low‑purity protection atmosphere only.
How to test real‑time nitrogen purity output of nitrogen‑generator?▼
Optional online nitrogen purity analyzer installs on output pipeline to monitor nitrogen purity value real‑time. Without analyzer you can do cutting test, observe cutting‑edge oxidation condition to judge nitrogen gas quality roughly.
What maintenance cycle for filter cartridges inside pretreatment unit?▼
General filter elements should be replaced every 2000‑4000 working hours. If workshop air contains heavy oil mist or dust, filter replacement cycle must shorten to 1000‑1500 working hours.
If I use mixed‑gas oxygen‑nitrogen for carbon‑steel cutting, can nitrogen‑generator support this?▼
PSA nitrogen‑generator outputs pure‑nitrogen only. If you need mixed oxygen‑nitrogen gas for carbon‑steel cutting process, you need install independent gas mixing valve unit behind nitrogen‑generator outlet port.
What power consumption of PSA nitrogen‑generator system whole set?▼
Major power consumption comes from screw air compressor. For example, 20Nm³/h nitrogen‑generator matching 15kw air‑compressor; total system power mainly determined by compressor power rating.
Can nitrogen‑generator produce nitrogen gas in cold winter low‑temperature workshop?▼
Environment temperature above 5℃ is acceptable. If workshop temperature below zero degree Celsius, water inside dryer and pipeline will freeze, must add workshop heating facility or heat‑trace for gas pipeline system.