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AISO Lubricants Group: Precision Selection Solution of Industrial Gear Oil for Heavy-Duty, Low-Speed and High-Temperature Working Conditions
Release time:
2026-09-14
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In industrial fields such as mining, metallurgy, cement, heavy-duty manufacturing and port machinery, gear equipment operates under long-term extreme composite working conditions of heavy load, low speed and high temperature. This easily leads to equipment faults including gear surface wear, scuffing, pitting, oil film rupture and oil product oxidation failure, which directly cause equipment shutdown, soaring maintenance costs and reduced production efficiency. As the "power heart" of industrial equipment, the selection and application of lubricating oil are the core key to ensure stable equipment operation and extend equipment service life.
With years of in-depth cultivation in the industrial lubrication field, AISO Lubricants Group relies on global advanced formula technology and local working condition adaptation experience. Targeting the operating characteristics and lubrication pain points of the three severe working conditions of heavy load, low speed and high temperature, we have built a dedicated industrial gear oil selection system and systematic oil application solution, which accurately solves the equipment lubrication problems under extreme working conditions and safeguards the long-term and stable operation of industrial heavy-duty equipment.
I. Analysis of Core Lubrication Pain Points Under Severe Working Conditions
Heavy-load, low-speed and high-temperature working conditions often overlap to form a composite harsh operating environment, which greatly increases the difficulty of lubrication compared with conventional working conditions. The core pain points are concentrated in three dimensions:
2. Low-Speed Working Conditions: Failed Fluid Lubrication and Sharply Increased Boundary Lubrication Pressure
Most industrial heavy-duty equipment operates at low speeds, and lubricating oil cannot form hydrodynamic fluid lubrication relying on rotational speed during gear meshing. The equipment operates in boundary lubrication and mixed lubrication states for a long time. In this case, the anti-wear and extreme-pressure additives of oil products are the only barrier against direct metal friction. Ordinary gear oils have insufficient extreme pressure performance, which cannot fill the lubrication gap caused by low speed and high pressure, resulting in continuous dry friction and micro-wear on gear meshing surfaces. Accumulated wear will cause equipment abnormal noise, transmission stuttering and reduced precision.
3. High-Temperature Working Conditions: Rapid Oil Aging and Failed Lubrication System
Multiple factors including heat generation from heavy-load friction, poor heat dissipation of closed equipment and high-temperature workshop environment lead to long-term high oil temperature in gear boxes. Under high-temperature conditions, ordinary gear oils are prone to oxidation, deterioration and coking, resulting in sharp viscosity changes, excessive acid value and sludge deposition. These problems will not only block oil circuits and affect heat dissipation, but also completely lose rust prevention, anti-wear and extreme pressure properties, causing intensified gear rusting and wear, as well as a greatly shortened oil change cycle and increased operation and maintenance costs.
II. Core Selection Criteria for Gear Oil Under Severe Working Conditions
Aiming at the pain points of composite heavy-load, low-speed and high-temperature working conditions, AISO Lubricants Group has established four core selection criteria based on industrial equipment operation standards and years of on-site application data, to avoid selection errors and achieve accurate adaptation:
1. High Viscosity Adaptation to Consolidate Oil Film Foundation
Abandon conventional medium and low viscosity oil products and give priority to high-viscosity gear oils. Under low-speed and heavy-load working conditions, high-viscosity oil products can form a thick and tough adsorbed oil film by virtue of their viscosity advantages, make up for the lack of fluid lubrication, resist high-pressure load impact and prevent oil film rupture and failure. Under high-temperature working conditions, high-viscosity oil products have stronger viscosity stability, which can effectively offset the viscosity attenuation caused by high temperature and maintain continuous lubrication.
2. Enhanced Extreme Pressure and Anti-Wear Performance
Heavy-duty industrial gear oils with high-end sulfur-phosphorus extreme pressure and anti-wear additives must be selected instead of ordinary medium-duty oil products. High-quality extreme pressure additives can form a high-strength chemical reaction protective film on the metal surface of gears. Under low-speed, high-pressure and impact load conditions, they can effectively isolate direct metal contact, fundamentally solve the problems of gear surface wear, scuffing and scratching, and meet the needs of extreme heavy-load working conditions.
3. Excellent High-Temperature Oxidation Stability
Adopt a formula system of refined high-purity base oil compounded with anti-oxidation and thermal decomposition additives to ensure that oil products are not prone to oxidative deterioration and coking and no sludge precipitation under long-term high-temperature conditions. It can stably control the changes of oil viscosity and acid value, extend the oil change cycle under high-temperature working conditions and keep the oil circuit clean and unobstructed.
4. Qualified Comprehensive Protection Performance
The oil product must have excellent demulsification, anti-foaming, rust and corrosion resistance. Most industrial heavy-duty equipment faces problems such as working condition fluctuations, slight water ingress and air mixing. High-quality gear oil can quickly separate water and inhibit foam generation, avoid oil film failure caused by oil-water emulsification, and fully protect metal components such as gears and bearings from rust and corrosion.
III. Exclusive Oil Application Solution for AISO Heavy-Duty, Low-Speed and High-Temperature Working Conditions
Relying on a mature oil product R&D system, AISO Lubricants Group has customized gradient and professional heavy-duty industrial gear oil solutions for different working condition intensities, equipment types and temperature ranges, covering all scenarios of severe working conditions. All products comply with the national standard L-CKD heavy-duty industrial gear oil standard and are suitable for various closed heavy-duty gear equipment.
1. Conventional Heavy-Duty, Low-Speed and Medium-High Temperature Working Conditions (Oil Temperature ≤ 85℃)
Recommended Products: AISO L-CKD 460#/680# Heavy-Duty Industrial Gear Oil
This series of oil products adopts high-viscosity refined mineral base oil compounded with high-end sulfur-phosphorus composite additives with extreme pressure, anti-wear, anti-oxidation and rust resistance properties, serving as the core matching product for conventional heavy-duty and low-speed equipment in mining, cement and metallurgy industries. The oil products feature ultra-high oil film strength and excellent shear and impact load resistance, which are perfectly suitable for low-speed and heavy-duty equipment such as ball mills, rotary kilns, large conveyors and heavy-duty reducers. Meanwhile, they possess good thermal oxidation stability, resisting oxidative coking and sludge generation and maintaining stable viscosity under continuous high-temperature working conditions within 85℃. In addition, the products have outstanding demulsification and anti-foaming performance, adapting to complex environments with slight water ingress and working condition fluctuations. They effectively prevent gear surface wear, pitting and scuffing, greatly reduce equipment failure rates, and extend equipment service life and oil change cycles.
2. Ultra-High Temperature and High-Intensity Heavy-Duty Working Conditions (Oil Temperature 85℃-110℃)
Recommended Products: AISO Fully Synthetic Heavy-Duty Gear Oil 460#/680#
For ultra-high temperature severe scenarios such as closed gear boxes, continuously operating heavy-duty equipment and high-temperature workshops, AISO fully synthetic gear oil is formulated with high-quality synthetic base oil. Compared with mineral oil, its high-temperature resistance and oxidation stability are more than doubled, enabling long-term stable operation under continuous high temperature of 110℃ without obvious aging, coking or sludge generation. The product has a stable molecular structure and extremely low shear loss, and can always maintain a uniform and tough lubricating oil film under ultra-high heavy load, continuous impact and ultra-low speed working conditions, eliminating the risk of oil film failure under high temperature and high pressure. It also has a longer service life, with an oil change cycle more than 50% longer than that of ordinary mineral gear oil, which greatly reduces equipment operation and maintenance, shutdown and oil replacement costs. It is suitable for ultra-severe working conditions of large-scale sintering machines, vertical coal mills, port heavy-duty rotary equipment and other facilities.
3. Special Working Conditions of Ultra-Low Speed and Ultra-High Pressure Heavy Load
Recommended Products: AISO L-CKD 1000# Heavy-Duty Industrial Gear Oil
Aiming at extreme working conditions of ultra-low speed, ultra-high pressure and high impact of super-large rotary kilns, large mining crushers and heavy forging equipment, the exclusive 1000# ultra-high viscosity gear oil can form an ultra-thick pressure-resistant oil film, completely solving the problem of insufficient fluid lubrication at low speed. The oil product has extremely high extreme pressure bearing capacity, which can resist instantaneous ultra-high impact loads and avoid plastic deformation and severe wear of gear surfaces. It is perfectly applicable to special industrial equipment with unfixed rotational speed and alternating heavy loads, filling the market gap of ultra-high viscosity heavy-duty gear lubrication.
IV. Working Condition Adaptation and Operation & Maintenance Optimization Suggestions
1. Accurate Viscosity Matching
Prioritize 460# and 680# viscosity grades for conventional heavy-duty, low-speed and high-temperature working conditions. Higher ambient temperature and equipment oil temperature recommend upgraded high-viscosity grades. For gear boxes without cooling systems, upgrading 1-2 viscosity grades under high-temperature environments is suggested to ensure lubrication stability.
2. Oil Change Cycle Management
Oil aging accelerates under high-temperature working conditions. It is necessary to regularly detect the viscosity, acid value, moisture and impurity content of oil products, and appropriately shorten the detection cycle compared with normal temperature working conditions. Fully synthetic oil products can extend the oil change cycle in accordance with standards, while mineral oils shall strictly follow the oil change specifications adapted to working conditions.
3. Equipment Supporting Optimization
Equipment operating under high-temperature working conditions is recommended to be equipped with a cooling system to control gear box oil temperature. Regularly clean gear box oil circuits and filter elements to avoid sludge accumulation affecting heat dissipation and lubrication. Strengthen equipment sealing protection to reduce the mixing of moisture and dust into oil products.
V. Conclusion
The core of lubrication for industrial gear equipment under heavy-duty, low-speed and high-temperature composite working conditions is to adapt to low speed with high viscosity, resist heavy load with extreme pressure formulas, and withstand high temperature with stable base oil. With mature formula technology, a complete product matrix and rich on-site working condition adaptation experience, AISO Lubricants Group provides differentiated and customized gear oil selection solutions for various severe scenarios. It fundamentally solves equipment lubrication problems under extreme working conditions, effectively reduces equipment wear, minimizes shutdown failures, cuts operation and maintenance costs, and provides a solid lubrication guarantee for the efficient, long-term and safe operation of industrial heavy-duty equipment in various industries.
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