Special grease for paper machine

$2.50 - $9.99
Min. Order
200 Liters
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Company Information

Jinan Tianchang Lubricating Oil Co., Ltd.

CN Trading Company
Response Time
<24h
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60%
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Quick Details

Port: Qingdao,Dalian,Tianjing,Rizhao
Payment Terms: L/C,D/A,D/P,T/T
Supply Ability: 200 Barrel/Barrels per Month
Place of Origin: Shandong China
Brand Name: Calde
Application: Industrial Lubricant
Type: Greases
General Composition: Base Oil
Model Number: High Temperature Lubricants
Work cone penetration (25 C, 0.1mm): 265-295
Kinematic Viscosity (40℃, /s,): 25
Kinematic Viscosity (100℃, mm/s): 4.7
Shear Viscosity (25 C, 300s-1) MPa.s: 4000-8000
Density (20 C, g/cm3): 0.99
Maximum service temperature: 130℃
Minimum service temperature: -40℃
Packaging Detail: 200L/drum
Product Description

 

It is a fully synthetic high temperature lubricant. It is a series of high temperature lubricants based on refined synthetic base oil. It is suitable for applications up to 280 C, low evaporation rate, ensuring long service life and cycle re-lubrication.

Applications:

Suitable for long-term and life-long lubrication of sliding and rolling bearings subjected to high temperature, such as printing press roller bearings corrugated mechanical rolling bearings conveying system automatic wafer Baker pulp and paper industry wood processing industry chemical industry steel industry ceramic manufacturing of rolling and sliding bearings will produce high temperature long-term or life-term lubrication, and Used for: electric motor, drier, calender, kiln car, tire mould, baking machine, continuous particle board and laminator, vacuum pump, after textile finishing machine or film stretching mechanical structure conveyor chain.

Product nameHigh Temperature Lubricants
Work cone penetration (25 C, 0.1mm)265-295
Corrosion (T3 copper sheet, 100 C, 3h)No green or black change in copper sheet
Kinematic Viscosity(40 C, /s)25
Kinematic Viscosity (100 C, mm/s) 4.7
Shear Viscosity (25 C, 300s-1) MPa.s4000-8000
Corrosion resistance DIN51802 (SKF-EmcoR) <1
Density (20 C, g/cm3)0.99
Maximum service temperature 130℃
Minimum service temperature-40
Application Range

Suitable for long-term and life-long lubrication of sliding and rolling bearings subjected to high temperature, such as printing press roller bearings corrugated mechanical rolling bearings conveying system automatic wafer Baker pulp and paper industry wood processing industry chemical industry steel industry ceramic manufacturing of rolling and sliding bearings will produce high temperature long-term or life-term lubrication, and Used for: electric motor, drier, calender, kiln car, tire mould, baking machine, continuous particle board and laminator, vacuum pump, after textile finishing machine or film stretching mechanical structure conveyor chain.

Conventional recommendations

(1)Selection suggestions: In order to achieve the best use effect, we suggest that you can communicate with your product consultant before use.
(2) Usage: Lubrication of bearing parts, add 1/2 of the filling volume of the full cavity, do not need to fill all bearing voids. Other similar parts refer to the addition amount.
(3) Applicable temperature: - 45 ~300 C.

Matters needing attention

(1)Use attention. Before the first use, please clean the lubricating parts and do not mix with other lubricating products. If you have to mix up limited items, please consult your product consultant.
(2)Environmental protection. Please cherish our earth, treasure resources, do not directly discard this product;
(3) Safety tips. Place it where children can't touch it to avoid eating by mistake. This product is not toxic, but for your health, if it is mistaken into your eyes, please wash it in time.
(4) The precipitation of slight liquid substances is a normal phenomenon, which does not affect the use.

 

It is a fully synthetic high temperature lubricant. It is a series of high temperature lubricants based on refined synthetic base oil. It is suitable for applications up to 280 C, low evaporation rate, ensuring long service life and cycle re-lubrication.

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FAQ

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1,Is the lubricant still available beyond its shelf life?

   Generally speaking, the storage time of industrial lubricants is recommended to be less than 1 year and less than half a year for grease. In order to ensure good equipment lubrication, lubricants should be stored in accordance with the "first in, first out" to avoid long-term preservation of lubricants, the above methods are only qualitative evaluation of the quality of lubricants after storage. If the amount of oil in the lubricating oil is large and does not want to waste, it is better to do some oil detection (oil analysis) before using the lubricating oil beyond its shelf life. Oil detection through professional testing equipment can quantitatively and accurately determine the quality of lubricating oil.

2,Does lubricant conduct electricity?

   Pure lubricants are basically non-conductive. So here comes the problem - static electricity. Because of the poor conductivity of insulators, static electricity is easily produced when friction occurs. Oil products in transportation and flow will produce static electricity by friction with containers and components. If these static electricity is not released in time, it may generate static sparks and cause combustion explosion.

For the generation of static electricity, the better the insulation of the material, the easier it is to generate static electricity. The conductivity of insulators is much lower than that of conductors.

Normally, the conductivity of lubricating oil is very low, so it can be used as insulation oil or transformer oil, although the role of transformer oil is not lubrication. Nevertheless, in some cases, the lubricant may also conduct electricity, mainly related to the composition of the lubricant and the impurities contained in the lubricant.

What factors affect the conductivity of lubricating oil

(1) Conductivity of base oil and lubricating oil:

Lubricating oil is made of base oil and additives. The lower the refining degree of base oil, the stronger the polarity, and the stronger the electric conductivity of the oil. According to the refining method and degree of base oil, API classifies base oil into five categories: API oil, API II oil, API III oil, API IV oil and API V oil.

(2) The effect of additives on the conductivity of lubricating oil:

In addition to the type of base oil, additives also affect the conductivity of lubricants. Organic metal additives can improve the conductivity of lubricating oil. Common organic metal additives, such as ZnDTP antiwear agent, are widely used in engine oil and hydraulic oil. It is a multi-functional additive, which can resist wear, oxidation and metal corrosion.

(3) The influence of temperature on the conductivity of lubricating oil:

In addition to base oils and additives, temperature also affects the conductivity of lubricants. For the same kind of lubricating oil, the conductivity of lubricating oil increases with the increase of temperature. However, the relationship between the conductivity and temperature of lubricating oil is not simply proportional. Different lubricating oils have different increasing trends when the temperature rises.

(4) The influence of impurities on the conductivity of lubricating oil:

Pure oil is insulated at room temperature because of its low conductivity. Lubricating oil needs to add some additives to base oil in production to change the conductivity of finished lube oil. The type of additives and the amount of metal ions lead to different conductivity of the finished lubricating oil.

Lubricating oil should be kept clean in use. If the oil contains water or some metal powder, it will obviously change the conductivity of lubricating oil.

How to prevent static electricity of lubricating oil?

If the lubrication system is prone to static electricity problems, grounding is a common method to eliminate static electricity, but in some cases, grounding may not be able to solve the problem. If grounding can't solve the problem of static electricity, we will introduce four other methods to eliminate static electricity.

1. Using anti-static filter elements, the materials used by these filter elements can lead the static electricity away in time and prevent electrostatic discharge.

2. On the premise that the oil is suitable, the lubricant with higher conductivity should be used instead. However, the risk of oil exchange should be fully assessed and avoided.

3. Modify the materials and bonding methods of the parts in the lubrication system, change to materials that are not easy to generate static electricity, or avoid the accumulation of static electricity.

4. Adjust the flow rate and tank size to reduce the friction of oil in circulating flow.

 

3,Common Knowledge of Transformer Oil

   Most transformer oils are mineral insulating oils, which are a kind of fractionation products of petroleum. The main components of transformer oils are alkanes, naphthenic saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds. A good transformer oil should be a clean and transparent liquid, free of sediments, suspended mechanical impurities and cotton flocculent substances. If it is polluted and oxidized, and produces resin and sediment, transformer oil will deteriorate, and the color will gradually become light red until it becomes dark brown liquid. When the transformer is faulty, it will change the color of the oil. In general, when the transformer oil is light brown, it should not be used again. In addition, transformer oil can be shown as turbid emulsion, oil black, dark. Transformer oil is turbid and emulsion, indicating that there is water in the oil. The dark oil color indicates the aging of transformer oil insulation. The oil color is black and even has a smell of coke, which indicates that there is a fault inside the transformer.

 

Transformer oil has the following main functions

 

(1) Insulation: Transformer oil has much higher insulation strength than air. The insulating material immersed in oil can not only improve the insulation strength, but also avoid the erosion of moisture.

 

(2) Heat dissipation: Transformer oil has high specific heat and is often used as coolant. The heat generated during the operation of the transformer makes the oil near the core and winding expand by heating. Through the convection of the oil, the heat is dissipated through the radiator to ensure the normal operation of the transformer.

 

(3) Arc suppression: Arc will be generated when contacts are switched on oil circuit breakers and transformer on-load voltage regulators. Because of the good thermal conductivity of transformer oil, and under the action of high temperature of arc, a large number of gases can be separated, resulting in greater pressure, which improves the arc extinguishing performance of medium and makes the arc extinguish quickly.

 

There are usually the following requirements for the performance of transformer oil

 

(1) The density is as low as possible to facilitate the precipitation of water and impurities in the oil.

 

(2) The viscosity should be moderate, too large will affect convective heat dissipation, too small will reduce the flash point.

 

(3) The flash point should be as high as possible and should not be lower than 135 C.

 

(4) The freezing point should be as low as possible.

 

(5) The lower the content of impurities such as acid, alkali, sulfur and ash, the better, so as to avoid their corrosion to insulating materials, conductors, fuel tanks and so on.

 

(6) The degree of oxidation should not be too high. The degree of oxidation is usually expressed in terms of acid value, which refers to the amount of potassium hydroxide (mg) required to absorb free acid from 1 gram of oil.

 

(7) Stability should not be too low. Stability is usually expressed by precipitate of acid value test. It represents the anti-aging ability of oil. The purpose of filtration is to remove moisture and impurities in oil, improve the electric strength of oil, protect paper insulation in oil, and also improve the physical and chemical properties of oil to a certain extent. Transformer oil: It is a kind of product of fractionation of oil. Its main components are alkanes, naphthenic saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds. Transformer oil is an important part of transformer, so the quality and quantity of transformer oil will have a direct impact on the operation of transformer.

 

Why does the transformer oil in operation deteriorate after a long time?

 

Transformer oil in operation is often at high temperature (about 85 C), and it will be oxidized when it contacts with the atmosphere. Some substances in oil, such as copper, can accelerate the oxidation process. When oil is oxidized, impurities such as acid and ash are constantly decomposed, thus deteriorating the performance of oil. When the impurities in the oil reach a certain concentration, sludge will settle, and sludge will accumulate on windings, cores and heat sinks, affecting the heat dissipation of transformers. In addition, transformer oil also absorbs moisture from the atmosphere. Under the action of the above factors, the quality of transformer oil will deteriorate gradually (i.e. aging), and its insulation strength will decrease gradually, which will deteriorate the aging of transformer oil.

 

What may be the cause of false oil level in transformer?

 

The false oil level of transformer may be caused by the following reasons: (1) blockage of oil standard pipe. (2) Blockage of respirator. (3) Blockage of airway vents. (4) Film-protected oil pillow does not exhaust air when refueling.

 

Thermal aging exists in all transformer oils. There is not only residual oxygen in the tank, but also oxygen when the fibers are decomposed. When the operating temperature is higher, the oxidation process of transformer oil proceeds faster, which makes the viscosity increase, the color deepen, the mud increase, the breakdown voltage drop and so on. In addition, there is the problem of electrical aging. With the extension of the pressurization time, the breakdown voltage of oil gap decreases. In oil-immersed power transformers, partial discharge occurs at high field strength, which promotes the further condensation of oil molecules into wax-like substances with higher molecular weight and the escape of low molecular weight gases. Wax-like substances accumulate on winding insulation near high field strength region, which blockage oil pipeline, influence heat dissipation, increase gas generation, and make discharge easier to develop.

 

Therefore, oil should be checked and tested frequently in operation, and treated in time (oil filter, etc.). Nowadays, many large transformers adopt nitrogen-filled protection or diaphragm protection measures. The diaphragm protection is filled with an oil-resistant rubber capsule slightly smaller than that of the oil storage tank. The capsule communicates with the atmosphere, thus isolating the contact between transformer oil and the atmosphere. This ensures the stability of oil performance.

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