Tmpto: Key to Biodegradable & Low-Risk HFDu Hydraulic Fluids
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Hydraulic equipment operates under the high temperature and high pressure working conditions, like metallurgy and coal mining, for a long time. Once the oil leaks or sprays, it will cause a fire risk and severe pollution to the surrounding soil and water.
HFDu synthetic water-free hydraulic fluids- polyol ester Trimethylolpropane Trioleate (TMPTO) as its base oil, which can not only improve the hydraulic oil's lubricity, anti-wear, anti-rust performances, but also can reduce the pollution to the environment.
What are HFDu's synthetic water-free hydraulic fluids?
Synthetic ester-based fire-resistant hydraulic fluid (HFDu) is formulated with high-performance synthetic esters (TMPTO) and selected lubricant additives, providing corrosion protection for ferrous and non-ferrous metals and excellent oxidation stability.
The traditional hydraulic oils have the problems of corrosion to metals, low biodegradation rate, and the release of harmful substances that harm the environment. Therefore, the traditional hydraulic oil is gradually replaced by HFDUu eco-friendly hydraulic oils.
Owing to it's no-toxic and biodegradable nature, HFDu non-flammable hydraulic oil has become the premier choice for environmentally conscious enterprises in specialized industries like aviation, electric power, and iron and steel metallurgy.
*Biodegradability: the materials will completely decompose into CO₂, H₂O, CH₄ (under anaerobic conditions), and biomass through microorganisms' action, within a specific timeframe and a set of environmental conditions, without leaving behind any persistent harmful substance.
Compliance criteria typically require: a biodegradation rate exceeding 90% within 180 days (or a specified period)-or reaching at least 90% relative to a reference material such as cellulose-along with heavy metal content meeting established limits and the absence of ecotoxicity.
Biodegradability comparison between different hydraulic base oils
| Base oil | Biodegradation rate (%)% CEC L-33-T-82 | Water hazard class WGK |
| Synthetic Base Oil | 90~100 | 0 |
| Phosphate Ester | 50~80 | 3 |
| Polyethylene Glycol | 10~40 | 0 |
| Mineral Oil | 10~40 | 3 |
| Poly-Alpha-Olefin | 3~35 | 1 |
Why is HFDu hydraulic fluid non-toxic and biodegradable?
HFDu Hydraulic fluids are formulated by synthetic polyol ester and Trimethylolpropane Trioleate (TMPTO) as the base oil.
Synthetic ester HFDu-type fire resistant hydraulic oil is composed of synthetic polyol ester (TMPTO) as the base oil, and combined with lubricant additives such as anti-oxidants additives, rust-preventive inhibitors, etc. As the base oil, Trimethylolpropane Trioleate is the core reason why HFDu fire resistant hydraulic fluid has high biodegradability.
The unique advantages of the TMPTO base oil
- Non-toxic
Trimethylolpropane Trioleate (TMPTO) is mainly obtained through the esterification and dehydration of oleic acid and trimethylolpropane (TMP) with excellent lubrication properties, high viscosity index, good flame resistance, and high biodegradation rate.
- High Biodegradability.
The biodegradability of synthetic base oil is far higher than that of mineral oil. In the natural environment, microorganisms can effectively decompose TMPTO, with the final products being water and carbon dioxide. Compared with mineral oil, the pollution period can be significantly shortened.
Chorus HFDu non-flammable hydraulic oil solution:
Chorus is a professional lubricant base oil supplier in China. We can provide you with high-performance base oils, including TMPTO base oil, which has an average biodegradability of 78.31% in 10 days, and completely decomposes after 28 days.
Our Trimethylolpropane Trioleate (TMPTO) base oil has excellent lubricity, high viscosity, good fire-resistance performance, and high biodegradability, which is the ideal base oil for HFDU synthetic type hydraulic oil 32#, 46#, and 68#. It can be widely used as an oily additive in cold rolling fluids, steel pipe drawing oils, cutting oils, mold release agents, and other metalworking fluids. It can also be used as an intermediate for leather auxiliaries and textile oils.
Besides that, we can also offer you HFDU fire-resistant hydraulic oil packages and the corresponding additives like anti-wear additives, corrosion inhibitors, and
If you need HFDU fire-resistant hydraulic fluids, please contact us.
We can offer you our professional solutions.
