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You can usually tell you need a new laser tube if your machine gets weaker or acts strangely. Look for changes in how it works or if you see damage. Acting fast stops long breaks and keeps your machine safe. The steps are still simple. Feiju Laser can help you find problems or change the tube with confidence.

Hal-hal Penting yang Dapat Dipetik

  • Watch for weak or uneven output from your laser machine. If it has trouble cutting or engraving, check if you need a new laser tube.
  • Look for color changes or build-up inside the tube. These signs often mean the tube is getting old and may need to be replaced.
  • Check for cracks or leaks in the tube. These problems can cause big damage and should be fixed right away to keep your machine safe.
  • A faded or white laser beam means the tube’s gas is running out. Plan to get a new tube soon to bring back full power.
  • Regular care, like cleaning and checking the cooling system, can help your laser tube last longer and stop expensive repairs.

Signs You Need a New Laser Tube

Signs-You-Need-a-New-Laser-Tube

Weak or Inconsistent Output

  • You may notice your laser machine struggles to cut through materials it handled easily before. Sometimes, the engraving looks uneven or faded. These changes often mean your laser tube is losing power. If you see sudden drops in performance, you should consider checking if you need a new laser tube.

Tip: If your machine cannot engrave or cut as it used to, do not ignore the problem. Early action helps you avoid bigger issues.

Discoloration or Electrode Deposits

  • Look inside your laser tube for any color changes. The glass may turn a coppery red or show dark spots. These changes can happen when dirt builds up or copper ions are released from the mirrors. You may also see deposits on the electrodes. These signs often mean the tube is wearing out and may need replacement soon.
  • Discoloration or electrode deposits can block the laser beam and lower your machine’s output. If you spot these symptoms, you should think about getting a new laser tube.

Cracks or Leaks in the Tube

  • Cracks can appear if the tube overheats, gets bumped, or if the glass is too thin. Leaks may develop from old hoses, loose connections, or worn gaskets. Both problems can cause water or gas to escape, which stops the laser from working properly.
  • If you see any cracks or leaks, you must act quickly. These issues can damage your machine and make it unsafe. Replacing the damaged part with a new laser tube keeps your system running smoothly.

White or Faded Laser Beam

  • The color of the laser beam tells you a lot about the tube’s health. A healthy tube produces a strong purple beam. If the beam turns pale pink or white, the gas mixture inside the tube may be depleted. This change means the tube cannot create enough energy for cutting or engraving.

Note: A faded or white beam is a clear warning. You should plan to install a new laser tube soon to restore full power.

Tube Not Firing or Uneven Engraving

  • Sometimes, the tube does not fire at all, or the beam pattern looks strange. You may see multiple dots instead of one round spot. This problem, called a TEM-xx error, shows the tube is failing. Uneven engraving or missed spots also point to tube trouble.
  • If your machine stops firing or engraves unevenly, you need to check the tube. Getting a new laser tube often solves these problems and brings your machine back to normal.

Diagnosing Laser Tube Problems

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Troubleshooting Steps

Start by checking simple things first. Look at the alignment of your laser tube. If it is not lined up, the output can be weak or uneven. Next, check the mirrors and lenses. If they are dirty or broken, the beam gets blocked. This makes your machine work worse. Check the power supply too. If the voltage goes up and down, the machine may not fire correctly. Make sure the cooling system works well. If the tube gets too hot, it can crack or leak. If you see these problems, you might need a new laser tube.

Tip: Always turn off your machine before you clean or check anything. Safety is the most important thing.

Ruling Out Other Causes

Some problems look like tube failure but come from other things. You should check for these before you change your tube. The table below shows common mistakes and how to fix them:

Problem Causes Solutions
Burrs and Rough Cutting Surfaces Bad laser focus, wrong power, not enough assist gas, dirty lens, tube wall thickness problems Change power, speed, and focal point; use the right assist gas; clean the lens; check machine compatibility
Excessive Dross or Flying Edges Too much laser energy, poor ventilation, nozzle not lined up Lower cutting power; improve airflow; fix or change the nozzle
Tube Clamping Instability Old clamps, wrong tube settings, bent tubes Fix clamps; use better systems; slow down for thin tubes
Dimensional Deviation and Inconsistent Sizes Tube gets too hot, parts wear out, and software mistakes Cool the tube; fix motors; check software and toolpath

If you fix these things and your machine still does not work, the tube might be the real problem.

When to Contact Feiju Laser

Anda harus call Feiju Laser for help in these cases:

Feiju Laser can find the problem and tell you what to do. You get expert help and good replacement parts. If you are not sure about any step, ask Feiju Laser for help. Acting early stops long breaks and keeps your machine safe.

Age and Lifespan of Laser Tubes

How to know if you need a new laser tube

Typical Lifespan

You want your laser machine to work at its best for as long as possible. Most CO2 laser tubes last between 1,000 and 10,000 hours. The exact lifespan depends on the quality of the tube and how you use it. If you use your machine every day, you may need a new laser tube sooner. Proper cooling helps extend the life. Keep the water temperature below 25°C to avoid overheating. The shelf life of a tube is usually 1-2 years, but you can use some tubes for up to 5-8 years if you care for them well.

Note: High-quality tubes and careful operation help you get the most hours from your machine.

Signs of Aging

You can spot an aging tube by watching for changes in performance. The beam may look faded or white. Cutting and engraving may become slow or uneven. You might see discoloration on the glass or deposits near the electrodes. Cracks or leaks also show that the tube is getting old. If you notice these signs, you should plan for a replacement soon.

Aging Sign What You See Apa artinya
Faded Beam Pale pink or white color Gas mixture depleted
Uneven Output Weak or spotty engraving Tube losing power
Discoloration Red or dark spots onthe  glass Tube wearing out
Cracks/Leaks Water or gas escaping Tube damage

Maintenance Tips

You can extend the life of your laser tube with good habits. Keep your workspace clean and control the temperature and humidity. Aim for 68-77°F and 40-70% humidity. Change the cooling water often and replace filters. Warm up and cool down your machine before and after use. Avoid sudden shutdowns. Clean mirrors and lenses every three months or when you see a drop in performance. Flush the system water yearly and change chiller filters every six months. Test for leaks and check gas pressure regularly.

Tip: Routine checks and cleaning help you avoid costly repairs and keep your machine running smoothly.

If you follow these steps, you can delay the need for a new laser tube and keep your system working at peak performance.

What to Do If You Need a New Laser Tube

Choosing a New Laser Tube

You want your laser machine to work reliably. When you select a new laser tube, check the brand and warranty. Some brands last longer and offer better support. The table below shows how popular brands compare:

Merek Service Life (Hours) Warranty (Months) Notes
General 1,000 – 10,000 3 – 12 Service life claims vary; longevity depends on handling and usage.
EFR Laser Up to 6,000 12 Warranty based on power retention; good quality can last 2-3 years.
Grade B Tubes N/A N/A Often fails quality standards; may have inflated power output claims.

Choose a tube that matches your machine’s power and size. Look for clear warranty terms. Reliable brands help you avoid frequent replacements.

Tip: Always check your machine’s manual for the correct tube type before you buy.

Where to Buy (Feiju Laser)

You can trust Feiju Laser when you need a new laser tube. They offer high-quality products and expert advice. Feiju Laser provides detailed guides for installation and troubleshooting. You get support for common problems like weak beam output or the laser not firing. Their team encourages you to ask for help if you face any issues.

  • Feiju Laser gives step-by-step replacement instructions.
  • You receive tips for safe handling, such as wearing gloves and eyewear.
  • The workspace stays clean to prevent contamination.

Feiju Laser’s customer service helps you feel confident during the replacement process.

Professional Replacement Help

You may want professional help if you feel unsure about installing a new laser tube. Experts can handle the tube gently and avoid damage. They know how to check for leaks and test the beam. You should seek support if your machine does not work after replacement or if you see cracks or leaks. Feiju Laser’s team can guide you through each step and answer your questions.

Note: Professional installation reduces risk and keeps your machine safe.


You can tell if a laser tube is failing by looking for weak output, strange colors, cracks, faded beams, or uneven engraving. Acting fast helps you save money and time. Feiju Laser gives expert help and good replacement tubes. You get:

  • Helpful customer service for any questions
  • Warranty choices that help you feel safe

If you are not sure about checking or changing the tube, ask for help. This keeps your machine safe and working well.

PERTANYAAN YANG SERING DIAJUKAN

How often should you check your laser tube for problems?

You should inspect your laser tube every month. Look for weak output, discoloration, or leaks. Early checks help you avoid costly repairs and keep your machine running well.

Can you use your laser machine if the tube shows small cracks?

You should not use your machine if you see any cracks. Even small cracks can cause leaks or sudden failure. Replace the tube right away to protect your equipment.

What safety steps should you follow when replacing a laser tube?

Always turn off and unplug your machine before starting. Wear gloves and safety glasses. Handle the tube gently. Keep your workspace clean to prevent accidents.

How do you know if the problem is the tube or another part?

Check the alignment, mirrors, and power supply first. If these parts work well and the problem continues, the tube likely needs replacement.

Does a new laser tube need any special setup?

You must align the new tube carefully. Fill the cooling system with clean water. Test the beam before using the machine for projects.

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