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SRF Limited

Our polymer ophtalmic lenses are designed to bring you a different point of view.

After making an impact in the international markets, SRF Vision Care is here with Acculite Polymer Lenses. One of the most advanced prescription polymer lenses in the world.

Our story began three years ago when the Rs.600 crore SRF Group decided to enter the vision care business.

We began studying the market extensively. Then invested heavily, Rs. 400 million, at the last count. imported some of the best machinery, even had them made to order. We then hired a set of trained professionals. Trained them even more. Invested in R&D. Set strict quality control guide lines. And began production.

The first batches were sent to USA and Europe. Some labs in the US wrote back complementing us on our excellent product. Saying that our lenses were amongst the best they had ever processed. Our lenses came out with flying colours on all counts. The scratch resistant coating was noted to be amongst the best.

While all this was happening on one hand, our team was busy talking to opticians, ophthalmologists and eye care professionals in India.

Our Acculite Polymer lenses are the very same lenses that are being exported to USA, Europe, Middle East and the Far East. These Lenses are among the most advanced prescription lenses in the world and certainly India's best scratch, UV and impact resistant polymer lenses.

SRF's Acculite range of world class polymer lenses include Single Vision, Flat Tops, Lenticulars, Progressives. And Acculite Transitions@ - world class Polymer Photochromics.

 

GRADES ST622 ST635 ST622GFL
DESCRIPTION HIGH IMPACT SUPER TOUGH NYLON 6 ALLOY VERY HIGH IMPACT SUPER TOUGH NYLON 6 ALLOY 15% GLASS FIBRE REINFORCED SUPER TOUGH NYLON 6 ALLOY

CUSTOMER BENEFITS

* Very High Impact Strength                                                    * Low Moisture Absorption
* Reduced Sensitivity to Notch                                                * Excellent Chemical Resistance
* Good Impact Strength Even At Low Temperature                 * Easy Processability
* High Elongation                                                                     * Low Density

TYPICAL APPLICATIONS

* Handle Bar                         * Brake Shoe For Textile M/C               * Receptacle
* Brake Level                        * D P Box for Telecommunications         * Plug
* Helmet                                * Sprocket Housing                                * Instrument Frame
* Rifle Butt                             * Automobile Fuel Lines                         * Cable Sheathing

GUIDELINES FOR PROCESSING SUPER TOUGH TUFNYL GRADES

PRE-DRYING :

It is recommended to pre-dry the Nylon granules in vaccum/air circulated ovens at 100/80 deg C for 2-4 hrs using perforated trays.

INJECTION MOULDING PARAMETERS :

Temperature settings in Deg C

Grade Feed Compression Metering Nozzle Melt Mould
ST622 180 220 225 230 220-230 60-80
ST635 175 215 220 225 215-225 50-70
ST622GFL 190 220 230 235 220-235 60-80

Injection Pressure : 750 - 1250 Kg/sq. cm or sufficient to fill cavities. Use of shut-off nozzle is recommended to avoid drooling.

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