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LinkMetal CNC Laser Parts LinkMetal CNC | One-stop supplier of laser spare parts and consumables for fiber laser, CO2 laser, welding, and marking machines.

21/09/2026

BRIGHT CUT ON CARBON STEEL — WHAT MAKES THE DIFFERENCE?

A bright, clean cut on carbon steel depends on more than laser power.

Four factors can have a major impact on the final cut edge:

🔹 Nozzle size — affects the assist-gas flow and dross formation.
🔹 Focus position — affects energy density and cutting pe*******on.
🔹 Cutting speed — too slow can increase heat input and create rough cut lines; too fast can reduce energy per unit length and cause incomplete cutting.
🔹 Assist gas pressure — too low may not remove molten material effectively; excessive pressure can increase bottom dross.

The right setting is a balance between **energy, speed and gas flow** — while maintaining full pe*******on and a clean cut.

Change one factor at a time. Make small adjustments. Compare the actual cut edge.

We supply compatible laser spare parts and consumables for different laser systems.
Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?
Contact us or visit our website.
[www.linkmetalcnc.com](http://www.linkmetalcnc.com)

18/09/2026

Cuts fine at first, Then get worse?

When this happens during continuous production, changing cutting parameters immediately isn't always the best first step.

Check what may have changed during production:

• Protective lens contamination or heat damage
• Nozzle spatter, wear, or or***ce damage
• Nozzle alignment and beam centering
• Focus position and cutting-head thermal stability
• Gas pressure, hoses, filters, and flow restrictions

Find the physical cause first, then fine-tune your cutting parameters if needed.

Stable cutting also depends on using properly matched and well-maintained consumables.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Contact us or visit our website.
[www.linkmetalcnc.com](http://www.linkmetalcnc.com)

16/09/2026

What's damaging your laser cutting head?

Some problems start with simple operating mistakes:

1️⃣ Incorrect gas pressure
2️⃣ Skipping calibration after relevant maintenance
3️⃣ Ignoring a contaminated protective lens

Gas pressure that is too low can contribute to poor slag removal and spatter buildup. Excessive pressure can also create risks for the protective lens and cutting head.

After relevant maintenance, make sure the required calibration or centering procedure is completed before returning to production.

And don't keep cutting with a contaminated or damaged protective lens. Contamination can absorb or scatter laser energy and lead to localized heating and further optical damage.

Check. Calibrate. Control.

Better maintenance can help reduce avoidable failures and unexpected downtime.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?
Contact us or visit our website.

14/09/2026

WHY DOES YOUR LASER NOZZLE WEAR OUT SO QUICKLY?

Frequent nozzle wear is not always just a nozzle problem.

Before replacing it, check what may be causing the damage:
• Incorrect focus position
• Protective lens contamination
• Off-center beam alignment
• Collision or scraping
• Unstable piercing conditions

Finding the cause first can help reduce unnecessary nozzle replacement and keep cutting more stable.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?
Contact us or visit our website.

www.linkmetalcnc.com

12/09/2026

LASER CUTTING SPARE PARTS YOU CAN COUNT ON

Finding the right replacement part for your fiber laser cutting machine isn't always easy.

Different cutting heads and laser systems may require different specifications, sizes or configurations.

We supply compatible laser spare parts and consumables, including:

• Laser Nozzles
• Protective Lenses
• Ceramic Rings
• Sensor Cables
• QBH Parts
• Other Fiber Laser Spare Parts

Compatible with Raytools · WSX · Precitec · BOCI & more

Not sure which part you need?

Send us your machine model or a photo of your current part.
We can help check the compatible option for you.

Contact us or visit our website.
[www.linkmetalcnc.com](http://www.linkmetalcnc.com)

10/09/2026

WHY IS YOUR LASER-CUT CIRCLE NOT ROUND?

If a circular cut comes out oval, distorted, or inconsistent, don't change every parameter at once.

The problem may not be the cutting parameters alone.

Before making major adjustments, check these areas:

• Nozzle condition — Check for wear, damage, off-center installation or improper positioning.

• Drive system — Mechanical backlash or looseness in the guide rail, rack, coupling or belt can affect circular accuracy.

• Motion response — Circular cutting requires continuous direction changes, so acceleration and servo response can affect the result.

• Drawing & process — Check the lead-in, cutting speed and focus/height settings.

Most importantly, troubleshoot one factor at a time.

Find the source → Make one change → Test again.

This makes it much easier to identify what is actually affecting the circle.

If the machine motion is stable, don't forget to inspect the cutting-head consumables as well.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Send us your machine model or current part photo.

Contact us or visit our website.

07/09/2026

CUTTING HEIGHT UNSTABLE?

If the distance between the cutting head and the sheet keeps changing, don't adjust the parameters immediately.

First check where the problem may be coming from.

Here are 5 important points to check:

• Recalibration after replacing cutting head components
• Ceramic ring condition and contact surfaces
• Sensor connections and cable condition
• Nozzle condition and installation
• Sheet flatness and lifted material

Height instability can come from the sensing system, component condition, or the material itself.

Identify the source first before making major parameter adjustments.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Contact us or visit our website.
www.linkmetalcnc.com

04/09/2026

LENS LOOKS CLEAN, BUT STILL BURNS?

A protective lens may look clean to the naked eye, but hidden contamination or system-related issues can still cause repeated damage.

If your protective lens keeps burning, don't just replace it immediately. Check what may be causing the problem:

• Tiny particles, oil residue or fingerprints on the lens
• Contamination during lens installation
• Oil, moisture or particles from the gas supply
• Contamination inside the gas line system
• Excessive spatter during piercing

Repeated lens damage is often a sign that another part of the process needs attention.

Before installing another protective lens, check the cause first.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Contact us or visit our website.

02/09/2026

Spatter Build-Up on Your Laser Nozzle?

If metal spatter keeps building up on your laser nozzle, don't replace the nozzle immediately. Check these three areas first.

1. Check nozzle height and gas settings

Incorrect nozzle height can increase spatter around the nozzle. Adjust the nozzle height properly and keep the assist gas on during cutting.

2. Check your piercing settings

Low piercing height or excessive piercing energy can cause molten material to splash onto the nozzle.

Try raising the piercing height and reducing excessive piercing energy.

3. Inspect the nozzle surface

Surface wear can make the nozzle more prone to spatter buildup. Replace the nozzle when surface wear becomes significant.

Identify the cause first, then make targeted adjustments.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Contact us or visit our website.

31/08/2026

Why Does One Side Have Dross While the Other Side Looks Clean?

If one side of your cut has heavy dross while the other side looks clean, don't change your parameters blindly.

First, check the nozzle condition.

Spatter build-up or a deformed nozzle tip can affect cutting stability and gas flow.

Clean or replace the nozzle if the tip is contaminated or damaged.

Next, check nozzle alignment.

A misaligned nozzle can affect the gas flow around the cutting point and lead to inconsistent cutting results.

Then inspect the protective lens.

Contamination or burn marks can affect beam transmission and cutting stability.

Finally, check the cutting speed.

If the speed is too high for the material and thickness, reduce it and fine-tune the setting.

Check the actual cause first, then adjust one factor at a time.

We supply compatible laser spare parts and consumables for different laser systems.

Compatible with Raytools · WSX · Precitec · BOCI & more

Looking for compatible laser parts?

Contact us or visit our website.

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