Hydraulic oil price difference is so big, where is the difference?
If the oil pump (main oil pump) is the heart of the entire hydraulic system, then the hydraulic oil is the blood of the entire hydraulic oil system, which has a great impact on the entire hydraulic system. Even a hydraulic oil equipment with advanced design and high manufacturing accuracy, if the hydraulic oil is not correctly selected and used, it can not play the efficiency of the equipment, and even cause serious accidents, so that the equipment is damaged or the service life is shortened. Whether the hydraulic system can work reliably and effectively depends on the performance of the hydraulic oil to a large extent.
There are manufacturers selling 1800 hydraulic oil on the market, and there are manufacturers selling 3800, why is the price difference so big?
One of the most obvious forms of inferior hydraulic oil entering the market is low price, which in Cantonese is "Pingda Amma can not recognize". The price of hydraulic oil on the market is generally more than three or four thousand yuan, and the inferior hydraulic oil is sold more than one thousand yuan, and the beautiful name "flat, beautiful, is" to attract customers.
Today, with the rapid development of science and technology, products in many industries can reduce costs on a large scale and enter the market in the form of high quality and low prices, while lubricant products are not yet available! Especially under the influence of factors such as rising prices of raw materials such as Base Oil and additives, rising prices of lubricating oil packaging materials and rising logistics and transportation costs, high-quality and low-cost products cannot be achieved.
Why are there so many cheap hydraulic fluids on the market? How do counterfeiters operate to make huge profits?
The manifestations of cheap and inferior hydraulic oil are: fake brand name, shoddy, low-grade charge high-grade, adulteration, quality indicators are unqualified, product labeling is not standardized or packaging is short weight and so on.
These low-price and shoddy hydraulic oils may not be abnormal in the short term when used, but the instability of the quality of the oil, rapid deterioration and large pump wear will seriously affect the normal work of the hydraulic system and the life of the main components, thus affecting product quality and production efficiency.
What is the difference between cheap hydraulic oil and genuine hydraulic oil?
01 Different base oil
The base oil of the hydraulic oil is divided into recovered oil, non-standard oil, national standard oil and imported oil, and the national standard oil is also divided into a class of base oil, two class of base oil and three class of base oil. Non-standard base oil is cheap and has become a "good raw material" for manufacturing low-cost hydraulic oil. Non-standard base oil originally contains a certain amount of mud, yellow robe, metal impurities, the low-cost hydraulic oil produced by non-standard oil is cloudy (some are light yellow). The non-standard base oil is treated with sulfuric acid to remove the heavy aromatics, and then the "base oil" is made of alkali to neutralize the excess acid, so the color is light and transparent. It is sometimes difficult to distinguish only from the appearance of the oil, but according to the standard requirements of the base oil, many indicators are unqualified.
02 Different production processes and quality assurance
There are a lot of low-price and inferior hydraulic oil on the market, most of them are small workshop products, which are extracted from waste oil or waste hydraulic oil by unscrupulous businessmen through a simple process. Cheap bad hydraulic oil will use inferior base oil or diesel to dissolve rubber as hydraulic oil, use general hydraulic oil as anti-wear hydraulic oil, and even use some recycled oil after simple treatment, as a brand of oil.
03 Different viscosity coefficients
Viscosity is an important indicator of hydraulic oil, the raw materials of low-quality hydraulic oil are messy, most of the viscosity index is very low, the viscosity temperature performance is poor, it becomes very thin at high temperature, and it becomes very thick at low temperature. When the viscosity is too low, it is easy to cause leakage of the hydraulic system (internal leakage and external leakage), and the hydraulic system can not work normally. When the viscosity is too high, the force transfer efficiency is reduced, the hydraulic oil flow speed is reduced, and the oil discharge from the oil pump is reduced.
04 Different resistance to emulsification
The water content of low-quality hydraulic oil is higher, the hydraulic oil containing more water will accelerate the aging of the oil for a long time, resulting in rust or corrosion of metal, and the oil with water will emulsify the oil, the lubricity will decrease significantly, and the aging of the hydraulic system will be accelerated.
05 Cleanliness is different
Low-quality hydraulic oil is prone to oxidation and blackening in high temperature environment, resulting in sludge and carbon accumulation when used, resulting in wear of oil pump or failure of control valve.
06 Different wear resistance
In order to reduce costs, low-cost hydraulic fluids lack the necessary chemical additives, and even lack anti-wear agents. Low-cost hydraulic oil using non-standard base oil is acid refining, the acid of the product is large, the general acid value is 2.0mgKOH/g(qualified base oil this value is below 0.05mgKOH/g). This kind of high acid value lubricating oil will greatly corrode various metals in the machine in use, especially non-ferrous metals, so that the machine wear is accelerated, the gap is increased, the efficiency is decreased, the fuel consumption is increased, and the life is shortened.
07 The replacement period varies
Low-cost hydraulic oil uses non-standard base oil and lack of additives to save costs, the quality of oil production does not meet the requirements of the index, and the fuel consumption is large. After the hydraulic system is added, due to mechanical, physical and chemical effects, the deterioration rate will be greatly accelerated, so that the performance is gradually reduced until it can no longer be used and must be replaced.
08 has different effects on human health
Commercially available first generation, second generation hydraulic oil, the base oil is made of paraffin based deodorization treatment, if in poor ventilation or semi-sealed workshop, affected by high temperature and high pressure, volatilized in the air of harmful gases are inhaled into the body of workers, affecting the health of workers.
See here you will still buy 1800 yuan hydraulic oil?
The use of low-cost hydraulic oil will cause great harm to the equipment, and it is a "chronic poison" for the equipment. Low price hydraulic oil appears to be cheap on the surface, reducing production costs. But in fact, it will increase equipment failure, increase fuel consumption, lead to increased maintenance costs, but also shorten the service life of the equipment, which will bring cost increases. Therefore, do not "pick up sesame and throw watermelon", cheap to use low-cost hydraulic oil, which will make enterprises, factories more than worth the loss!
