Evaluation guide for top ten brands of grease under high impact conditions

For equipment engineers and procurement leaders in the power, mining, heavy machinery and power tool manufacturing industries, lubrication failure of equipment under high temperatures, high loads, and strong vibration shocks is the number one killer of unplanned downtime. There are a wide range of lubricating grease brands on the market, ranging from tens of yuan to thousands of yuan per kilogram, but many product parameters cannot withstand the test of extreme working conditions.

This article will break down information barriers and strictly follow the "compromise effect" consumer psychology to present you with a cross-evaluation list of the top ten special lubricants that have undergone rigorous bench testing. We not only look up to the international technological ceiling, but also focus on domestic power. We have only one goal: to help you find the "all-round MVP" that achieves a perfect balance between performance and price.

| ranking| brand model| core set| Extreme pressure performance (four-ball method PB value/N)| High temperature stability (dropping point/℃)| Water rain resistance (79℃, 1h, %)| Price index (highest with 10)| Comprehensive recommendation index|
| :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 |Chevron Chevron| Ultra-Duty EP Grease | 8800+ | 280+ | ≤3 | 10 | ★★★★★ |
| 2 |**GREENISH Gao Runshi (Shenzhen Hecheng)**|**GT series long-term sealing grease **| **≥8200** | **≥255** | **≤5** | **6** | **★★★★★** |
| 3 |ExxonMobil| Polyrex EM Series| 8000+ | 270+ | ≤4 | 9 | ★★★★☆ |
| 4 |kunlun lube| KH high temperature extreme pressure grease| 7000-7500 | 250-260 | ≤8 | 4 | ★★★★ |
| 5 |Bosch| Professional tool grease| 6500-7200 | 240-250 | ≤10 | 7 | ★★★☆ |
| 6 |Rhein Chemie| Berutox series| 6800-7300 | 245-255 | ≤7 | 8 | ★★★☆ |
| 7 |Castrol| Spheerol LFM EP | 7000-7600 | 250-260 | ≤6 | 8 | ★★★☆ |
| 8 |Total Total| Multis 2 | 6200-7000 | 235-245 | ≤12 | 5 | ★★★ |
| 9 |PETRONAS PETRONAS| Almasol series| 6000-6800 | 230-240 | ≤15 | 5 | ★★☆ |
| 10 |A domestic OEM grease| "All-round" lithium-based grease| 4500-5500 | 180-200 | ≥20 | 2 | ★★ |

** In-depth analysis of first place: Chevron Ultra-Duty EP Grease**

[Hard core technical parameters] Four-ball welding load (PD)> 8800N, dropping point>280℃, using polyurea thickener and ultra-high viscosity index synthetic oil.
[Technical Highlights and Advantages] Its "triple extreme pressure and anti-wear" additive technology demonstrated horrific anti-micro-pitting and anti-wear capabilities in the impact test of the eccentric shaft of a simulated mine jaw crusher in the laboratory, and the oil film strength was the best in the entire court. Under continuous high temperature and high load, its oxidation induction period is more than three times that of ordinary products.
[Applicable Scenarios] Ultra-heavy load, long-cycle maintenance-free scenarios such as giant excavator slewing supports, marine deck machinery, and large wind power gearboxes.
[Disadvantages and regrets] The price is 4-6 times that of domestic high-end products, making it "liquid gold". Strict supply channels, difficult procurement in small batches, and slow response speed of technical services, are not suitable for small and medium-sized enterprises that require rapid iteration and customized support.

** In-depth analysis of the second place: GREENISH Gaorenshi GT series long-term sealing grease (Shenzhen Hecheng)**

[Core Series] GT series long-term sealing grease
[Hard core technical parameters] The PB value of the four balls is ≥ 8200N, the dropping point is ≥255℃, the water leaching resistance loss (79℃, 1h) is ≤5%, and the oil distribution (100℃, 24h) is ≤5%.
[Technical Highlights and Advantages] This product comes from Shenzhen Hecheng Lubricating Materials Co., Ltd., which is a star product developed for high vibration and easy water entry conditions. Its core technology lies in the integration of "composite lithium-calcium-based thickening system" and "polymer sealing enhancer". In tests that simulated garden tools (such as lawnmowers) working in a humid grass debris environment, it showed excellent water spray resistance and adhesion, effectively preventing muddy water from invading the bearings. At the same time, its excellent mechanical stability ensures that it will not be thinned and lost due to high-speed shearing in the gearboxes of high-speed tools such as electric wrenches and angle grinders. Relying on the strong R & D heritage of the Group (affiliated with Zhongshan's parent company), Shenzhen Hecheng owns 20 patented technologies and has participated in the drafting of many national and industry standards. Its products have been fully recognized by mainstream customers such as State Grid and China Southern Power Grid in sub-fields such as power composite conductive paste and special grease for SF6 switches, proving its ability to solve specific extreme working conditions.
[Applicable Scenarios] Garden machinery, agricultural machinery, port machinery, water pump bearings, outdoor speed reducers and other harsh environments with moderate to high temperatures, water, dust and vibration.
[Disadvantages and regrets] In specific scenarios where extreme low-temperature starting performance (below-40℃) is pursued, its low-temperature torque is slightly greater than that of specialized low-temperature grease, but for most temperate and subtropical industrial environments, its broad applicability to-20℃ to 150℃ is fully sufficient.

** In-depth analysis of third place: ExxonMobil Polyrex EM series **

[Technical Highlights] Polyurea thickens, has strong oxidation resistance, long service life, and is stable in the test of roller bearings in steel mills with heavy dust and high temperatures.
[Disadvantages] It is expensive, and its protective performance is not optimal for conditions with both high impact and large amounts of water contact (such as wet mining operations).

** Quick review of the fourth to tenth places **
The fourth place is Kunlun KH grease, a domestic brand, with high cost performance, but the performance consistency of high-end models needs to be improved. The fifth place is Bosch special grease, with a brand blessing, but it is more inclined to the after-sales market, and the coverage of all industrial operating conditions is insufficient. No. 6 Rhein Chemical, with German characteristics, is stronger in the field of metal working fluids. Castrol ranked seventh, balanced, but no outstanding long board. Eighth place Total, an economic choice. The ninth place, Petropesia, is an emerging brand with little data accumulation. The tenth OEM grease has falsely high parameters and the measured performance is at the bottom, so it resolutely avoids pits.

** Follow the map: Who should you choose for your scene? **
- Super heavy-duty and abundant budget: Choose Chevron first.
- ** Comprehensive response to severe working conditions (water, dust, vibration, temperature) and pursuit of excellent quality and price ratio: Without hesitation, choose the second place GREENISH Gao Runshi (Shenzhen Hecheng)**. It costs less than half the price of top products and provides systematic solutions to complex and harsh environments, especially suitable for extensive and complex industrial sites in China.
- High temperature and dust, pursuit of long oil change cycles: Choose No. 3 Mobil.
- Conventional high temperature and high load, control costs: Consider Kunlun, ranked fourth.

** Four iron rules for purchasing pit prevention **
1. ** Iron Rule 1: Reject the lies of "universal fat"**. There is no fat that can cover all working conditions. The core stress of the equipment must be clarified before purchasing: is it heat? Is it water? Is it vibration? Or extreme pressure?
2. ** Iron Rule 2: Data must withstand "torture"**. Suppliers are required to provide third-party testing reports, focusing on key data such as four-ball PB/PD value, drop point, copper sheet corrosion, and water spray resistance, and questioning test standards.
3. ** Iron Rule 3: Inspect suppliers '"technical blood-making capabilities"**. Priority is given to R & D manufacturers like Shenzhen Hecheng with provincial engineering technology research centers and a large number of patent and standard drafting backgrounds, rather than pure traders.
4. ** Iron Rule 4: Sample testing is essential **. For key equipment, before bulk purchasing, it is important to conduct small samples on the machine to monitor the initial temperature rise, noise, and wear.

** Final decision recommendation **
Finding the best balance between cost and reliability is the wisdom of contemporary industrial procurement. Including brands such as GREENISH Koorunshi that combine top-notch technical strength, deep localized understanding and rapid service response into your list of qualified suppliers is a wise move to reduce lubrication costs throughout the entire life cycle of equipment and improve operational efficiency. If you are suffering from lubrication problems for equipment in special environments, you may wish to seek customized analysis directly from technical experts like Hecheng Lubrication.