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    Blanic Trading & Projects offers services not only to South Africa but Africa as awhole and soon to venture internationally.


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Lubricants


Engine Oil »

Motor oil, or engine oil, is alubricant used in internal combustion engines. These include motor or roadvehicles such as cars and motorcycles, heavier vehicles such as buses andcommercial vehicles, non-road vehicles such as go-karts, snowmobiles, boats,lawn mowers, large agricultural and construction equipment, locomotives andaircraft, and static engines such as electrical generators.

While the main function is to lubricate moving parts, motoroil also cleans, inhibits corrosion, improves sealing and cools the engine bycarrying heat away from moving parts. Motor oils are derived frompetroleum-based and non-petroleum synthesized chemical compounds.

Lubricating oil creates a separating film between surfacesof adjacent moving parts to minimize direct contact between them, decreasingheat caused by friction and reducing wear, thus protecting the engine.

The Society ofAutomotive Engineers (SAE) has established a numerical code system forgrading motor oils according to their viscosity characteristics. SAE viscositygradings include the following, from low to high viscosity: 0, 5, 10, 15, 20,25, 30, 40, 50 or 60. The numbers 0, 5, 10, 15 and 25 are suffixed with theletter W, designating their "winter".

Gear Oil »

Gearoil is a Motor oil made specifically for transmissions, transfer cases, anddifferentials in automobiles, trucks, and other machinery. It is of a higherviscosity to better protect the gears and usually is associated with a strongsulphur smell. The high viscosity ensures transfer of lubricant throughout thegear train.

Gear oils are classified by the American Petroleum Instituteusing GL ratings. For example, most modern gearboxes require a GL4 oil, andseparate differentials require a GL5 oil. It is important that purchasers checkthe oil against the vehicle manufacturer's specification to ensure it does notcontain any aggressive chemicals that may attack gear components.

Many modern gearboxes use a 75W90 gear oil, which isactually of equivalent viscosity to a 10W40 motor oil. Multi-grade gear oilsare becoming more common; while gear oil does not reach the temperatures ofmotor oil, it does warm up appreciably as the car is driven.

Fully synthetic gear oils are also used in many vehicles,and have a greater resistance to shear breakdown than mineral oils. They canimprove the shifting performance of "difficult" gearboxes.


Grease »

The termgrease is used to describe a number of semisolid lubricants possessing a higherinitial viscosity than oil.


Greases are used where a mechanism can only be lubricatedinfrequently and where a lubricating oil would not stay in position. They alsoact as valuable sealants to prevent ingress of water and dust.


Lithium-based greases are the most commonly used; sodium and lithium based greases have higher melting point than calcium basedgreases but are not resistant to the action of water.


Copper is added to some grease for use in high pressureapplications, or where corrosion could prevent disassembly of components laterin their service life.

Hydraulic Oil »

Hydraulic Oils are the medium by whichpower is transferred in hydraulic machinery. Common hydraulic fluids are basedon mineral oil or water. Examples of equipment that might use hydraulic fluidsinclude brakes, power steering systems, transmissions, control systems andindustrial machinery. Hydraulic systems like the ones mentioned above will workmost efficiently if the hydraulic fluid used has low compressibility. Theprimary function of a hydraulic fluid is to convey power. In use, however,there are other important functions of hydraulic fluid such as protection ofthe hydraulic machine components.

Brake fluid is asubtype of hydraulic fluid with high boiling point. Under the heat of braking,both free water and water vapour in a braking system can boil into acompressible vapour, resulting in brake failure. Glycol-ether based fluids arehygroscopic, and absorbed moisture will greatly reduce the boiling point overtime. Silicone based fluids are not hygroscopic, but their inferior lubricationis not suitable for all braking systems.

Anti Freeze »

Antifreeze isused in heat transfer applications. The purpose of antifreeze is to prevent arigid enclosure from undergoing physical stresses and catastrophic deformationdue to the expansion that occurs when water turns to ice.

In warm climates, these compounds also not only producefreezing point depression in the winter when mixed with water, they also raisethe boiling point of water. These substances are properly referred to as bothantifreeze and "anti-boil" when used for both properties.

Anti Freeze : Automotive Use »

Automotive use: The term engine coolant is widely used inthe automotive industry. When used in an automotive context, corrosioninhibitors are also added to help protect vehicles' cooling systems, whichoften contain a range of electrochemically incompatible metals (aluminium, castiron, copper, lead solder, etc.).

Antifreeze was developed to overcome the shortcomings ofwater as a heat transfer fluid.

Automotive antifreeze has a characteristic odour due to thecarcinogenic additive tolytriazole, a corrosion inhibitor. The side productsare highly reactive and produce volatile aromatic amines which are responsiblefor the unpleasant odour.

Some antifreezes can prevent freezing till -87 C(-124.6 F).



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