It is very important to check the hydraulic oil standard of heavy mining and road construction machinery because these equipment work in harsh working conditions such as high pressure, harsh environments, variable temperatures and environmental pollution. Choosing the right hydraulic oil based on valid standards can extend the life of the equipment and prevent possible failures.
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Heavy machinery hydraulic oil standard review:
ISO 6743/4 (HM, HV, HG, …)
One of the most common international classifications of hydraulic oils is:
– HM: Mineral base oil with anti-wear additives
– HV: Similar to HM but with a high viscosity index (for high temperature changes)
– HG: Has anti-rust and anti-corrosion properties, usually for sensitive systems
DIN 51524 (Parts I to III)
– Teil I (HL): For light conditions, without anti-wear additives
– Teil II (HLP): With anti-wear additives Wear, suitable for mining machinery
– Teil III (HVLP): High viscosity index + anti-wear additive, for variable temperature and high pressure
ASTM D6158
American standard for industrial hydraulic oils with high performance levels, including protection against wear, corrosion and foam.
OEM Approvals
Manufacturers such as Caterpillar, Komatsu, Volvo, Liebherr usually have their own specifications that go beyond the general standards.
Practical tips:
– Always use the machine manual to check the type and grade of oil.
– In cold or hot conditions, it is recommended to use HVLP oils with variable viscosity.
– Periodically perform oil sampling and analysis to ensure the health of the hydraulic system.
Choosing the right hydraulic oil for mining and road construction machinery is a key factor in ensuring stable performance, reducing maintenance costs, and extending the life of hydraulic systems. These machines usually operate in harsh, high-pressure, dirty, and temperature-fluctuating working conditions; therefore, the importance of choosing the right oil is doubled.
Examples of real-world application:
Summary:
Hydraulic oil is not just a lubricant; Rather, it plays a vital role in maintaining system health, reducing costs, and improving machine performance.
Using oils with OEM approvals (e.g. CAT TO-4, Komatsu KES 07.866) and global standards is strongly recommended.
Comparing hydraulic oils for mining machinery is one of the most important steps in selecting the right oil for specific operating conditions. Factors such as oil base type, additives, temperature resistance, wear, oxidation, and compliance with standards and operating conditions should be considered in this comparison.
Overall Analysis:
– If you work in an environment with extreme temperature changes → use HV or HVLP.
– If your machine operates in underground mines or closed environments → Fire-resistant oils (HFC or HFDU) are essential.
– If you are concerned about the environment (for example, you work in the forest or near water sources) → Biodegradable oils such as HEES are a good option.
– Synthetic oils are used for modern or highly sensitive systems, they are more expensive but last much longer.
The effect of hydraulic oil on the performance and lifespan of mining and road construction machinery is very critical and decisive. These types of machinery operate in very harsh and stressful environments, so the quality and correct selection of hydraulic oil directly affects the efficiency, maintenance costs, and stability of the system.
Important effects of hydraulic oil on mining and road construction machinery:
Increase the life of hydraulic components
Quality hydraulic oil:
– Prevents wear of moving parts such as pumps, valves, and cylinders.
– Reduces metal-to-metal contact and reduces corrosion.
– Prevents the formation of sludge and deposits inside the circuit.
Result: reduced wear, increased component life, reduced premature replacements.
Stable performance at different temperatures
Machinery operates in extremely hot or cold environments. Oil Good hydraulic oil should:
– Not be diluted in the cold to prevent the system from slowing down.
– Not be overly diluted in the heat to maintain system pressure.
Result: smooth operation of the hydraulic system without delays or loss of efficiency.
Resistance to contamination and oxidation
In mines, contaminants such as dust, water, and metal particles are present.
A suitable hydraulic oil should:
– Have high filterability.
– Be resistant to oxidation and water.
– Do not foam and quickly deaerate.
Result: Prevent blockage of paths, valve failure, and system shutdown.
Reducing Maintenance Costs
By choosing the right oil:
– The time between repairs increases.
– The cost of replacing parts and stopping the project is reduced.
– Sudden failure is prevented.
Result: Increased productivity and profitability of projects.
Reducing fuel and energy consumption
Oils with optimal viscosity and low friction cause:
– Reduce pressure on pumps and engines.
– Reduce energy and fuel consumption.
Result: Reduced operating costs and resource consumption.
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Final summary:
Hydraulic oil is the beating heart of mining and road construction systems.
The wrong choice, like pumping contaminated blood into the heart; component failure, project downtime, and financial loss are the direct results.
In contrast, the correct choice of oil leads to high performance, long life, and reduced costs.
Kavir Machine Espadana Company
In addition to new machinery and parts, Kavir Machine Espadana Company also offers used road construction and mining machinery with warranty and after-sales service, which are as follows:
Everdigm hydraulic hammer, Loader, Excavator, Dump truck, Lift truck, Backhoe, Drill Wagon, Grader, Bulldozer and…, contact our experts at Contact to get advice and prices.
Kavir Machine Espadana Company is registered in Isfahan Province with the purpose of importing road construction and mining machinery, and is also the only exclusive representative of Hyundai Everdigm Hydraulic Hammer in the entire country. The company’s management, relying on its decades of experience in the field of mining contracting and road construction and civil engineering projects, has expanded its activities in the field of importing and selling road construction and mining machinery, parts and related equipment. Therefore, realizing the lack of quality machinery in the country and despite problems such as sanctions and customs issues, we have started importing machinery directly from reputable global factories. In this regard, we can mention the signing of a cooperation agreement with Sumitomo Japan in 2003, which resulted in the import of the first series of Komatsu zero-ton machines to Iran. We hope that by relying on God Almighty and with the aim of achieving the satisfaction of our dear customers, we will be able to take our firm steps further for the prosperity of our dear Iran.
Kavir Machine Espadana Company Communication Roads
Isfahan, 3rd kilometer of Zob Ahan Road, right side crossing