Hydraulic support emulsion is widely used in underground mining hydraulic support systems. While the concentrate itself is important, the quality of the dilution water can also have a major influence on corrosion protection and equipment compatibility.
A recent test for a Vietnamese customer demonstrates why actual application water should be considered when evaluating a hydraulic support emulsion.
Water Is Part of the Working System
Hydraulic support concentrate is normally diluted with water before entering the hydraulic support system. Therefore, performance is not determined by the concentrate alone.
Why Does Water Quality Matter?
Water from different mining areas can have different hardness, mineral content and chemical characteristics. These differences may influence the stability and corrosion protection of the diluted emulsion.
For this reason, a product that performs well with one water source should still be evaluated carefully when the application water changes.
In practical applications, the concentrate, dilution water, metal materials and operating conditions should be considered together.
Key Factors in Hydraulic Support Emulsion Selection
Corrosion Protection
The diluted emulsion should provide effective protection for metal components during normal operation.
Water Compatibility
Different water sources can affect the behavior of the final diluted fluid.
Metal Compatibility
Steel and copper components may require careful compatibility evaluation.
Dilution Performance
The concentrate should remain stable and functional at the required working dilution.
Equipment Protection
Good corrosion control helps reduce unnecessary maintenance risks in hydraulic equipment.
Application Testing
Testing with actual application conditions provides more useful information than relying only on laboratory water.
A Real Corrosion Test for a Vietnamese Customer
A Vietnamese customer contacted our technical team because corrosion protection was an important concern in their hydraulic support application.
Instead of using standard laboratory water, the customer brought the actual water used at their site to our factory. This allowed the technical team to evaluate the hydraulic support concentrate under conditions closer to the customer's real application.
The diluted test solution was evaluated using both steel and copper specimens. The test was continued for 24 hours and the specimens were then visually inspected.
How We Evaluate the Application
A practical evaluation starts with understanding the customer's actual operating conditions.
Understand the Problem
Identify the customer's corrosion or equipment-protection concerns.
Collect Actual Water
Use the customer's real application water for evaluation.
Prepare the Emulsion
Prepare the hydraulic support fluid according to the required application conditions.
Conduct the Test
Evaluate corrosion behavior using steel and copper specimens.
What Can We Learn From This Case?
The main lesson is simple: hydraulic support emulsion should not be evaluated independently from the water used in the field.
Actual water quality, dilution conditions and equipment materials can all influence the final performance of the hydraulic support fluid.
The Vietnamese customer case also shows the value of application- based testing. By using the customer's actual water sample and testing both steel and copper, the evaluation became more closely connected to the real operating environment.
Frequently Asked Questions
Why use the customer's actual water?
Because water quality can vary between mining locations and may influence the performance of the diluted emulsion.
Why test both steel and copper?
Different metals can respond differently to the working fluid, so testing both materials provides a broader compatibility view.
Does a 24-hour test represent field life?
No. A 24-hour corrosion test is a laboratory evaluation and should not be interpreted as a direct prediction of service life.
Have a Water Compatibility or Corrosion Concern?
If you are selecting hydraulic support concentrate for a new mining application, providing your actual water sample and operating conditions can help our technical team make a more practical evaluation.
Related Products：
Hydraulic Support Concentrate Hydraulic Support Concentrate HFAS10-5
