Laser cutting machine chiller pit avoidance guide（Selection·Install·use·maintain）

This article covers brand levels、Power matching、Refrigeration capacity、water temperature control、water quality maintenance、Installation specifications、Common faults，Help you avoid all traps at once。

one、Guide to Choosing Chillers and Avoiding Pitfalls

1. Brand star ranking（Real reference for export-level laser machines）

★★★★★ top brands：special area（S&A）、Flying together（Tongfei）。Recognized as the most stable in the laser industry，Accurate temperature control、Very low failure rate，The first choice for high-end machines and export machines。

★★★★☆ First-line brand：Han Li Hanli、Dongluyang、Cadley、Kolida。Stable quality、High cost performance，Mainstream choice for commercial laser machines。

★★★☆☆ Second-tier brands：Domestic conventional industrial chiller。Suitable for ordinary use，Average accuracy and stability。

★★☆☆☆ Low-end no-name brand：Small factory without standard、Modified machine。Insufficient cooling、water temperature drift、Leakage、burn laser，Definitely not recommended。

2. Refrigeration capacity must match，The little horse and the big cart must burn the laser

Laser generates huge heat，Chiller measurement must be**Leave enough margin**，Can't exactly match：

≤1500W laser → suggestion 1.5HP~2HP

2000W~3000W → suggestion 3HP~5HP

6000W~8000W → suggestion 5HP~10HP

10000W above → suggestion 10HP~20HP or dual system

Insufficient cooling capacity → Water temperature soars → Laser protection shutdown → Seriously directly burns out the laser chip。

3. Must distinguish：single temperature machine vs dual temperature machine（very critical）

single temperature machine：Only one water temperature setting，Suitable≤1500W low power laser。

dual temperature machine：Cooling the laser all the way、Cool all the way QBH Output header，2000W The above must use double temperature。

Single temperature machine for high power machines → QBH overheat → Jump protection、Unstable cutting、Burnt out output head。

4. The flow rate and head of the water pump cannot be reduced

Insufficient traffic → Slow heat dissipation；Insufficient head → Water circulation does not move。High-power machines must be usedLarge flow high pressure pump，Ensure smooth flow of waterways、No air bubbles、No overheating。

two、Install and use pit avoidance

1. Deionized water must be used/purified water，Do not use tap water

Tap water contains impurities、scale → Blocking the laser tube → Heat dissipation failure → Laser scrap。Must usepurified water+Special antifreeze，Regularly test water quality。

2. The water temperature cannot be set randomly：Fiber laser standards 22℃~26℃

temperature too low → Condensation → burn out laser；temperature too high → Overheating protection。Standard settings 24℃~25℃ safest。

3. The water machine must be turned on first，Turn on the laser again

Wrong sequence will cause the laser to start directly without cooling，Overheating damage can occur within seconds。correct order：water boiler → Wait for the water temperature to stabilize → Turn on laser。

4. Waterways cannot be crushed、bend、clogged

water pipe bend → Traffic becomes smaller → Heat dissipation becomes worse；clogged pipes → abnormal pressure → Laser alarm。

three、Maintenance and troubleshooting

1. Every3~6Water needs to be changed every month、Clean filter

Do not change water for a long time → Microbial growth、scale、clogged pipes → Heat dissipation plummets。

2. Exhaust gas regularly：Air bubbles are strictly prohibited in waterways

Air bubbles can cause erratic water flow、temperature jump、Laser abnormality alarm。It is necessary after changing the waterCompletely drain the air from the line。

3. Cooling fan、The condenser must be cleaned regularly

Dust blocks the condenser → Heat dissipation becomes worse → Cooling capacity decreases → High temperature alarm。

4. Must be protected from freezing in winter，Otherwise, the water tank and pipes will freeze and crack.

Shutdown in low temperature environment is necessaryDrain water or add antifreeze，Otherwise, the water tank will freeze and crack.、water pump、laser，great loss。

Four、Summary of pit avoidance of laser cutting machine chiller

1. brand：Priority special area、Flying together，The most stable，Protecting the laser is the safest。

2. power：The cooling capacity must beGreater than laser heating power，Leave enough margin。

3. type：≤1500WUse single temperature，2000WThe above must be double temperature。

4. water quality：Only use pure water/deionized water，No tap water allowed。

5. water temperature：Standard settings 24℃~25℃，neither high nor low。

6. order：Turn on the water machine first，Turn on the laser again。

7. maintain：Change water regularly、Clean、exhaust、Antifreeze，Increased lifespan3more than times。

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