How to Maintain a CNC Water‑Cooled Spindle

The water-cooled spindle is the heart of any desktop CNC router. It directly determines machining accuracy and overall machine longevity. Many users report increased noise after two years or vibration marks during engraving — most of these issues stem from neglected routine maintenance. This guide covers cooling system care, electrical connections, and daily usage habits, based on feedback collected from OMIOCNC customers worldwide over many years.

1. Cooling System: Keep It Flowing

Choosing and Replacing Coolant

  • Recommended mixture: Distilled water + 10–20% ethylene glycol antifreeze (or a dedicated spindle coolant). Never use tap water — minerals will form scale inside the channels, block heat dissipation, and eventually burn out the coils.
  • Replacement interval: Every 3 months. If you work in high humidity (coastal areas, Southeast Asia), shorten to every 2 months. During hot summers, check the level weekly and top up as needed.

Pump and Tubing Check

Before starting each day, touch the return hose............

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2024 Chinese New Year holiday notice

Chinese New Year Holiday Notice
February 1 to February 17
SHIPMENT TEMPORARILY SUSPENDED

The Chinese New Year is coming, the freight fowarders and logistics companies will stop working in holiday,  and due to the delivery from our factory to our freight forwarder(Hong Kong) needs 3 ~ 4 days, so we will stop the shipment early. We will temporarily suspend shipment from February 1st to February 17th.

Please note:

1. You can still place orders on our website. All orders will be shipped starting from February 18th.

2. Our team will be away during the holiday. We appreciate your understanding and patience.

— OMIOCNC Team
Jan 24, 2024
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2023 Chinese National Day holiday notice

September 29th to October 6th

The Chinese National Day is coming, we will suspend shipping from September 29th to October 6th 

Please note: 
1, You will still be able to continue place order on our website, the orders  will be shipped from Oct 7th.
2, We will leave for the holiday. if any inconvenience please understanding.

 

OMIOCNC team
Sep 27, 2023............

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Coupon & Discount

We are now offering discount codes to all customers. The following discount codes are valid until December 31, 2023

How to use Coupon Code ?

1.  Login first, otherwise the coupon code will not work.
2.  Add product to shopping cart, then go to shopping cart to paste the coupon code.

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European buyers need to provide VAT, EORI

European buyers need to provide EORI or VAT number

According to the requirements of the European Union, from March-01-2023, all goods sent to the European Union must provide the recipient's EORI or VAT number, which will be used for European Customs Clearance. We must provide it to DHL/Fedex when shipping via DHL/Fedex. 

Please write EORI or  VAT number in your shipping address when you placing order, or write it to us after you place an order via email.

Please note that your EORI or  VAT number will only be provided to DHL/Fedex They are only used for DHL/FEDEX agent customs clearance. ............

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2023 Chinese New Year holiday notice

The Chinese New Year is coming, the freight fowarders and logistics companies will stop working in holiday,  and due to the delivery from our factory to our freight forwarder(Hong Kong) needs 3 ~ 4 days, so we will stop the shipment early,  we will suspend shipping from January 10th to January 29th.

Please note:  


1, You will still be able to continue place order on our website, the order  will be shipped from Jan 30th.

2, We will leave for the holiday from January 15th to January 29th.   if any inconvenience please understanding............

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2022 Chinese National Day holiday notice

The Chinese National Day is coming, the freight fowarders and logistics companies will stop working in holiday,  and due to the delivery from our factory to our freight forwarder(Hong Kong) needs 3 ~ 4 days, so we will stop the shipment early,  we will suspend shipping from September 28th to October 6th.

Please note:  


1, You will still be able to continue place order on our website, the order  will be shipped from Oct 7th.

2, We will leave for the holiday from October 1st to October 6th.   if any inconvenience please understanding............

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Common Failures and Troubleshooting Steps of Linear Shaft Guides

Linear shaft guides commonly suffer from abnormal noise, sticky movement, excessive clearance, rust, scratches, overheating, and machining inaccuracy. Follow these 5 troubleshooting steps:

  • Visual inspection for rust, scratches, and debris.
  • Manual sliding test to feel resistance or wobble.
  • Professional cleaning with compressed air and lint‑free cloth.
  • Lubrication test with low‑viscosity oil.
  • Power‑on operation verification at low speed.
  • ............
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How to use Coupon Code ?

Step 1. Login first, otherwise the coupon code will not work.

If no account, please register one, and please note that when you register, you will receive an email to activate the registration.

 

Step 2. Add product to shopping cart,  then go to shopping cart to paste the coupon code.

Coupon Code is 12 characters without spaces.  Please be careful not to include spaces when copying or pasting code............

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Notice about 2022 Chinese New Year holiday

The Chinese New Year holiday is coming soon, the China domestic logistics and freight forwarder will stop working during the holiday, and since it takes 3~4 days for us to ship to the freight forwarder, please pay attention to the following schedule:

1. We will stop shipping from January 21st to February 7th.  You can still place an order during this time, and the orders will be shipped on February 8th.
2. We will leave for vacation from January 28th to February 7th. During this period, if you have any questions, we will reply on February 8th.

If you want to receive the machine as soon as possible, please place your order before January 21st.  Thank you. ............

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