Our Manufacturing Facilities

Our manufacturing facility is equipped with teams that execute their tasks efficiently . Each team carefully monitor their work area such as:

1. Shop-floor
2. Storage yard
3. Packaging
4. Administration
5. Quality Assurance
6. Research

We ensure complete documentation for input trace-ability and batch logs. Dedicated quality assurance team controls the production processes, focusing on value and delight to our customers. Extensive and regular training is imparted to our employees on safety, house keeping and technical aspects. We believe in strong processes and systems for customer evaluation and service level management.

Who we are?

VIP Friction is a leading producer of high performance cashew nutshell liquid (CNSL) based friction particles for use in the automotive brake industry. CNSL friction particle is used in disc pad brakes and drum linings as a stabilizing agent.

These particles (sometimes called friction dust) have a resilient nature which cushions the engaging property of a piece of lining. In addition, they decompose on the surface of a lining at various elevated temperatures which controls the wear and offers a protective device by prohibiting excessive temperature from being developed. The inclusion of friction particles also helps control brake noise.

The friction particle product line consists of brown, black, and modified products that are designed to meet a comprehensive range of performance and property needs. Brake manufacturers can choose the most appropriate friction particle from a broad range of mesh sizes and particle distribution. These particles can be used in metallic, semi-metallic, asbestos and non asbestos brake products.

Our Products

Cashew Friction Dust

Cashew Friction particle, often called Friction dust is cross-linked and cured phenolic polymer derived from CNSL. It is used as an additive in manufacture of Brake Linings, Pads, Industrial Linings and Clutch Plates, ensuring safe brake linings, and better roads. Friction Dust is cross linked product obtained from the reaction of CNSL with hexamine to achieve the desired Friction dust properties. It is converted into powder form using the standard mesh sizes. In automotive industry, the inclusion of friction particles helps control brake noise. The particles offer perfect cushioning effect to the linings owing to their resilient nature .

On the whole, they reduce wear, improve friction stability, act as noise dampeners, and can be formulated to exhibit high heat resistance and outstanding hardness and flexibility.

Properties

Due to the resilient nature of friction dust, it cushions the linings in which they are employed. In addition, it decomposes on the surface of a lining at various elevated temperatures which controls the wear and thereby render a protective device by prohibiting further rise in temperature. The inclusion of friction particles also helps control brake noise, and this property is widely applied in automotive industry.

Application

Cashew Friction dust finds a variety of applications ranging from those at automotive industry to Electrical insulation industry. The major utilization includes,

1)Disc Pad
2)Heavy Duty Blocks
3)Clutch facings
4)Brake Linings

How To Produce CNSL?

The shelling machine is mainly used for crushing oil from cashew shell which is name as Cashew nut shell liquid CNSL. This is aimed to ovoid the environment pollution and make end use the material.

Best quality machines are used at VIP Friction to produce CNSL.

Source: Youtube

How To Prepare Cashew Friction Dust?

A process for the preparation of improved friction dust useful as friction modifier in brake/clutch facings which comprises preparing a slurry of phosphorylated cashewnut shell liquid prepolymer and a cross-linking agent in an organic solvent such as herein described, mixing the said slurry in a conventional mixer of a period ranging 20 to 30 minutes, pulverizing the resultant dust, sieving and thermohardening the obtained dust at a temperature in the range of 80 - 13°C for a period of 20 to 30 minutes to get the desired improved friction dust.

The present invention provides a process for the preparation of improved friction dust useful as friction modifier in brake / clutch facings. As the friction dust prepared from phosphorylated cashew nut shell liquid prepolymer by the process of the present invention possesses properties superior to that of the conventional CNSL- formaldehyde resin in terms of improved resistance to flame, high temperature stability, lower fade value, better durability etc., it can be used as a friction modifier in brake linings substituting the existing brands that are known to give rise to serious problems. So the industries to which the invention can apply are brake lining and clutch facing industries.

Friction dust is generally prepared from CNSL- formaldehyde resin or from the residue known as residol obtained after distillation of cardanol from CNSL.

The CNSL resin is then cross-linked with hexamine or paraformaldehyde and cured, further thermohardened and ground to a coarse dust.

The residol route is mostly preferred by the industry as it is more cost effective. The preparation, properties and specification of friction dust are trade secrets and published literature are rare. Addition of friction dust is expected to modify frictional and wear properties of the brake linings.

An increase of 30-40 % in wear improvement is expected. It also helps in reducing the fade value and lowering the noise level thereby giving the brake lining enhanced life and a quieter braking action. However, the conventional material was found to give serious problems: The friction dust prepared through this route is suspected to catch fire during shipments and hence its export market has eroded greatly. So it was thought necessary to develop a process to prepare friction dust having improved thermal stability and better resistance to flammability.

The main object of the invention is to provide a process for the preparation of friction dust useful as a friction modifier in brake / clutch linings, Another object of the present invention is to provide a process for the preparation of friction dust from phosphorylated cashewnut shell liquid prepolymer having improved resistance to flame and better high temperature stability and better fade and other friction modifying ptoperties than the conventional friction products.

Source: http://www.allindianpatents.com/patents/242267-a-process-for-the-preparation-of-improved-friction-dust-useful-as-friction-modifier-in-brake-clutch-facings

Best Cashew Friction Dust in the market

Cashew Friction Dust is made out of CNSL, which is Cashew Nut Shell Liquid. The friction particles is used as a stability agent in brake products and it has got a resilient nature and it absorbs heavy impact and act as a cushioning agent of the engaging property of the lining.
Further it is easily decompose on the surface able lining at various elevated temperature controlling the wear and acting as a protective device by prohibiting the excessive temperature being generated. It also easily absorbs the heat and disperses the same in the whole area of the friction material.





Application 

It is mainly used as on of the prime raw material for heavy automobile non-asbestos and asbestos brake lining. It is also used in clutch facing and disc pad.







Specification 

Sieve Analysis 20 to 100 mesh sizes

Color Dark- Brown (As per customer's requirements)

Volatile content 3 max *C

Moisture content 1 max

Acceton Extraction 5 max

Ph value 3-10 (As per customer's requirements)