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From “Top-Up” to “Full Exchange” – AUTOOL Redefines Coolant Maintenance

From “Replenishment” to “Replacement”: Professional Maintenance Upgraded

AUTOOL’s SC301 cooling system test and replenishment machine has long been recognized by many repair technicians for its vacuum testing and coolant filling functions. However, we’ve also heard many customers ask: “Can you completely replace the old fluid?” “Can you clean the entire cooling system?”

Now, we officially launch the AUTOOL SC501 and AUTOOL SC611 Coolant exchange machine, upgrading from “replenishment only” to “complete replacement,” making your cooling system maintenance more thorough and professional!

Why is a Coolant Replacement Machine Necessary?

Many mechanics still use traditional methods to change coolant: disconnecting hoses, connecting a bucket, and manually adding fluid… This method is not only inefficient, but the replacement rate is usually only 50%-70%, and problems such as old fluid residue, air locks, and incomplete removal of impurities are common. A coolant replacement machine is a device specifically designed for the maintenance of automotive cooling systems. Its core working principle can be summarized as “equal volume exchange + circulation cleaning.” Compared to traditional manual draining and adding, it achieves a more thorough and efficient coolant replacement.

NEW PRODUCT LAUNCH: AUTOOL Coolant Exchange Machines

AUTOOL SC501 Smart Cooling System Flush & Exchange Machine

Core Features:

  • Circulation Flush Function – Effectively removes scale, rust, and other impurities to improve heat dissipation efficiency and extend cooling system life
  • Equal Exchange Technology – Simultaneously fills new fluid while recovering old fluid, achieving an exchange rate of nearly 100%
  • Mechanical Knob Control – Simple and intuitive operation, no special training required – ready to use right away
  • Pressure Overload Protection – Prevents excessive pressure from damaging the vehicle’s cooling system
  • New/Old Fluid Comparison Window – Transparent hoses with sight glass for easy visual confirmation of exchange quality
  • 25L Large-Capacity Tanks – Meets the demands of continuous workshop use
  • Quiet Operation Design – Minimal noise during operation for a better working environment

AUTOOL SC611 Smart Fully Automatic Cooling System Flush & Exchange Machine

Core Features:

  • One-Button Fully Automatic Exchange – Automatically completes the entire coolant exchange process without repeated manual intervention, improving work efficiency
  • Vacuum Hold Pressure Mode – Creates a vacuum and performs a pressure-holding test to accurately check for leaks in the cooling system
  • Vacuum Fill Mode – Enables vacuum-assisted filling to completely prevent air pockets – ideal for high-end and new energy vehicles with more complex and extended cooling system layouts
  • Precise Flow Control – Accurately controls flow rate and pressure during exchange to prevent any damage to the cooling system
  • Circulation Flush Function – Effectively removes scale, rust, and other impurities
  • Pressure Overload Protection – Comprehensive safety protection
  • 25L Large-Capacity Tanks + Real-Time Fluid Level Display – Clear visibility of new and old fluid levels
  • New/Old Fluid Comparison Window – Transparent hoses with sight glass for直观 visual comparison

Comparison with Existing Tools on the Market

VS Traditional Vacuum Filling Tools

Traditional vacuum tools can only assist with filling—they cannot extract old coolant or flush the system. In essence, they only solve the problem of “how to add coolant,” not “how to change it thoroughly.”

The AUTOOL SC501/SC611, however, deliver professional-grade maintenance: active old coolant extraction + equal exchange technology achieve a nearly 100% exchange rate; the circulation flush function effectively removes scale, rust, and other impurities; and the electric pump design requires no external air compressor, offering more flexible deployment.

VS Other Brand Exchange Machines

  • Large Capacity + Low Power Consumption: 25L tanks (competitors typically offer 20L) with only 15W power consumption (competitors generally use 60W+)—ideal for continuous operation
  • More Practical Power Supply: AC independent power (competitors often rely on vehicle batteries)—suitable for fixed workstations with no risk of battery drain
  • Leading Vacuum Technology: The SC611 integrates vacuum hold pressure testing + vacuum filling, precisely meeting the demands of high-end vehicles and new energy vehicles; the SC501 features mechanical knob control + affordable pricing, covering mainstream fuel vehicles
  • Outstanding Cost Performance: Precisely focused functionality, significant price advantages at equivalent configurations, and faster local service response

Detailed comparison of the three products to help you make a quick decision.

Comparison Item

SC301 Coolant Filler

SC501 Coolant Exchange Machine

SC611 Coolant Exchange Machine

Product Positioning

Testing + Filling

Mechanical Flush & Exchange

Fully Automatic Flush & Exchange

Core Functions

Vacuum test, pressure leak test, coolant filling

Circulation flush, equal exchange

Circulation flush, equal exchange, vacuum test, vacuum filling

System Flushing Capability

❌ No

✅ Yes

✅ Yes

Exchange Rate

90%+

Nearly 100%

Nearly 100%

Operation Method

Push-button

Mechanical knob

One-button fully automatic

Vacuum Test Function

✅ Yes

❌ No

✅ Yes

Vacuum Filling Function

✅ Yes

❌ No

✅ Yes

Pressure Hold Test Function

✅ Yes

❌ No

✅ Yes

Pressure Overload Protection

✅ Yes

✅ Yes

✅ Yes

Real-Time Fluid Level Display

✅ Digital display

✅ Window display

✅ Window display

New/Old Fluid Comparison Window

❌ No

✅ Yes

✅ Yes

Power Supply

DC 12V

AC 100-240V

AC 100-240V

Power Rating

–

15W

15W

Tank Capacity

–

25L

25L

Pressure Range

-1~2bar

0-3.5kg/cm²

0-3.5kg/cm²

Vacuum Adjustment Range

–

–

-35~80kPa

Applicable Vehicles

Mainstream fuel vehicles

Mainstream fuel vehicles

Fuel vehicles + New energy vehicles + High-end vehicles

Purchase Recommendations: Which One is Right for You?

If you’re still hesitating, consider this:

• When you provide Coolant services, do you currently charge only 50 RMB for “fluid drain + refill,” or would you prefer 200 RMB for “deep cleaning + equal volume replacement”?

• Are your customers willing to settle for “mixed” used fluid, or are they willing to pay for 100% new fluid + a cleaned cooling system?

The value of the SC501 and SC611 lies not in the equipment itself, but in how they transform a routine maintenance into a professional service that your customers can see and experience.

Conclusion

From SC301 to SC501 and SC611, AUTOOL has always been committed to providing the automotive repair industry with more professional and efficient maintenance equipment. The launch of the coolant changer marks AUTOOL’s completion of a comprehensive layout in the field of cooling system maintenance, moving from “replenishment” to “replacement.”

Thorough cleaning, equal volume replacement—AUTOOL coolant changers ensure every vehicle can start its journey “cool”!

Inquire now for new product discounts!

Contact the AUTOOL team for more product details and cooperation policies.

Daisy

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