Sterling Agro Presentation

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    Introduction of Rice Whitening

    Abrasive Stones and other products

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    Sterling Abrasives Limited

    • Founded in the year 1969 by Mr Nitin Parikh

    • Pioneer & leader in the manufacture of Rice Whitening Abrasive Rollers in Ind

    • ISO 9001 : 2008 TUV Certified Company having strength of 350 people produ

    vitrified and resinoid grinding wheels / associated with Murugappa group in 199

    • Turn over in 2015-16 million USD (approx Rs 66 crores INR) out of this 1/3rd o

    is from export market

    • Exporting Rice Whitening Stones to various countries like US , UK , Italy , Ger

    Thailand, Philippines, Columbia, Vietnam, Nepal, Bangladesh, Pakistan etc.

    Manufacture Rice Whitening Abrasive Rollers suitable for Buhler , Satake, MilSchuelle, Dandekar, Suri, Devraj Hitech, Perfect Equipment, Sona food & many

    machines

    • Grading successfully working for different varieties of rice

    • Manufacture approx. 30000 pcs per year of different varieties of stones for rice

    whitening application

    • Capable to manufacture abrasive stone as per customer requirement

    Company Profile

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    http://localhost/var/www/apps/conversion/tmp/scratch_6/Buhler%20item%20code%20detail.xls

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    Sterling Stones for Buhler - Bangalore

    340 X 93 X 230mm 450 X 70 X 300m

    250 X 60 X 170mm

    460 X 71 X 305mm 460 X 71 X 305m

    Supplying stones to

    Buhler – India since last

    15 years

    http://localhost/var/www/apps/conversion/tmp/scratch_6/Buhler%20item%20code%20detail.xlshttp://localhost/var/www/apps/conversion/tmp/scratch_6/Buhler%20item%20code%20detail.xls

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    Satake VTA 10 Satake VTSatake VTA 15

     Abrasive Stones for Satake Machines

    Separate facility to supply stones with properly balanced flange/hub

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     Abrasive Stones for Binny Model

    REC, Thailand Design Abrasive Segments

     Abrasive Stones for other models

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     Abrasive Stones for Scheulle - Germany

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    • Mainly two types

    Green Silicon Carbide & Black Silicon Carbide

    Green silicon carbide

    • Recommended for raw / Basmati rice

    • Rice breakage % is less compared to black sic

    • Whitening of rice is better 

    • More hardness/sharpness compared to black sic

    Black silicon carbide

    • Recommended for parboiled rice

    • More life compared to green sic

    • More toughness compared to green sic

     Abrasive Types for Rice Whitening Application

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    Premium range of stones _ Extra Long Life

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    Major Benefits of Extra Long Life Rollers

    ● Longer life of abrasive rollers

    Saving in rice broken by 0.5 to 1% compared to regular stone

    ● Excellent shining & whiteness on rice

    ● Output quality will be better due to fast cutting action

    ● Readily available in popular sizes/grading

    R t

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    Report

    Parameter Rice Master Extra Long Life

    Batch size (input paddy), In KG 18750 18Time taken/ batch, In Hour 7

    Rice Broken, In KG 645

    Rice Broken % 3.44 3

    Current Consumption (Amp) 17

    Water consumption at silky 1st pass (In LPH) 40

    Water consumption at silky 1st pass (In LPH) 60

    Polishing (*) Good Better

    Temperature (degree centigrade) 55

    Bran sticking on screen (cake formation) every batch once in two Bat

    Name of Customer : A Doraisamy Modern Rice Mill, Salem

    Whinener m/c : Buhler, DSRF

    No of pass : 3 passes (Green 16 grit for 1st & 2nd pass, Green 24 grit for 3rd pass)

    Type of paddy : Single Boil

    (*) – Kettmeter was not available at customer end / by visual observation

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    Conventional Cone Casting

    Before Pasting Emery

    Conventional Cone Casting

     After Pasting Emery

    Emery Pasted Abrasive Stones

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    Sterling Abrasives Limited

    • Emery pasting

    Dependant on human

    skill• Time consuming

    • If not done properly,

    may cause problem

    during working & may

    result in production

    loss• Limited shelf life

    • Different practice for

    selecting emery grit &

    type

    • 100 % Silicon Carbide (SiC) abrasiv

    • grain

    • Grit Combination as per requiremen• Unique bonding system

    • Different stages in manufacturing i.e

    • mixing / drying / Firing / quality

    • checking / Dressing / Inspection /

    • Packing

    • Fired at High degree temperature fo

    • Ten days• Uniform hardness through the

    • surface

    • Manufacturing period is 4-5 weeks

    • Same quality as per whitener stone

    Manufacturing Of Abrasive ConeEmery Pasted Cone

    Variety

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    Sterling Abrasives Limited

     Abrasive Stone + Metal Assembly

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    Sterling Abrasives Limited

    • Rice broken % is reduced  – at-least 1% saving in boil rice

    • Higher output rate in ton/hour (10 to 15% extra)

    • Higher life of stone (at-least 3 times compared to emery pastedstones)

    • Consumption of rubber brake is reduced by 25 to 30%

    • Whitening / Shining of rice is better 

    • Saving in electricity cost (due to more output & less AMP)

    • Easy to mount on assembly

    • Compact & uniform structure due to vitrified bond  – dependency

    on skilled labour for setting up cone can be avoided

     Advantages of Cone Whitener Stones

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    4 pcs design 2 pcs design Single pc desig

    Flange type

    assembly

    Different design of cone polisher stones

    Regular

    assembly

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    Cone Whitener Stones Photo

    Supplying to majority of Cone Polisher Machine Manufacturers in Indi

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    Long type abrasive stones for Vietnam market

    Short type abrasive stones for Thailand Market

    Stones for Cone Polisher Machine

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    South East Asia Cones

    Pieces Rice Mill,

    Philippines (30” and

    28”)

    Lamico Design,

    Vietnam Model

    Vit ifi d Chi T R ll d l

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     Advantages:

    1. Better rice whitening and shining2. Rice broken will be minimized

    3. Reduction in power consumption

    4. Longer life of abrasives stone

    5. Higher rice output per hour 

    6. No shelf life

    Vitrified Chinese Type Rollers - models

    TS 25B SM 18E Jet Polisher / NF 15

    Sterling Sterling SterlingConventional CConventional CCon

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     Advantages:

    1. Pearl removal process become faster 2. Saving in pulse breakage by 0.5 to 1%

    3. Life of stone will be 3 to 4 times higher 

    4. Saving in Electricity cost

    Existing hand made roller  Sterling’s Vitrified Bonded Stones

    Vitrified Dal Polishing Stones

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    Popular Variety of stones are available in ready stock (Approx. two month requiremen

    agro season)

    Availability in ready stock

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    Thanks