Minerals & Metals

Copper Wire Scrap mill berry We supply copper scrap with high quality and competitive price. 1) Our copper scrap includes wires, tubes, and plates, etc. 2)The size is chips or other. 3) Copper content meetS customer's need. Application: Electrical, light industry, machinery, national defense industry .Copper Scrap is industry a important sources of the raw materials, all kinds of can be recycled Recycling waste production with copper NAME Copper Scrap Wire (Millberry) 99.9% ANALYSIS ITEM STANDARD( , %) RESULTS(%) Purity (Wt%) ≥99.78 99.9% CARB , ON 0.03% 0.03% COBLET , <0. 001 0.0009 IRON 0. 005% 0.005% PHOSPHORUS <0. 01% 0.009% SULPHUR <0. 01% 0.009% ZINC 0. 003% 0.003% copper scrap (2) Copper Scrap wire, Cable copper wires Purity: 99.9% MIN Grade: Grade A

Minimum Order: 5 dozens

pure 99.9% aluminium ubc scrap Aluminium Scrap We are leading Importers and suppliers of Aluminium Scrap. Aluminium scrap is imported from various countries where we have tie-up with scrap yards. The scrap is segregated properly at these scrap yards and shipped as per ISRI classifications. He scraps have very low or nil attachments which enables the end user to use the scrap without further inspection. This saves valuable time for the end users resulting in lower effective cost.Further we offer these Scraps in customized solutions as per the requirement of the client. These scraps help them in serving varied purposes of different industries mainly Extrusion and castingSalient features of Aluminium scraps.

Minimum Order: 5 dozens

Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Specialized in Precision Casting and Forging Ball Grinding Media Fields Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... Specialized in Precision Casting and Forging Ball Grinding Media Fields OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

Specialized in Precision Casting and Forging Ball Grinding Media Fields/Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

A GLOBAL REPUTATION FOR LEADING-EDGE MANUFACTURING TECHNOLOGY. Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn & showroom: gaincin.store.bossgoo.com)'s steel grinding media is a valuable commodity widely used in power stations for coal grinding, limestone grinding for flue gas desulphurisation, cement production, aerated building block manufacturing and in the mining industry, especially in gold, silver, copper and zinc mines.We also produce mild steel balls for use in ornamental ironwork to act as decorative finials on steel gates and railings. Rolled Steel Balls The major advantage of precision ball rolling, compared with traditional forging methods, is the uninterrupted grain flow. Grinding balls are rolled from selected carbon and alloy steels, produced to a customer’s precise specifications. A special feature of GAINCIN’s manufacturing process is the computerised quench facility, giving uniform surface hardness and controlled cross-sectional hardness essential for very even wear. Quality Control and Hardness Measurement In the long term, the effectiveness of grinding media must be measured by the final cost per tonne of product efficiently ground.GAINCIN's advanced manufacturing methods and materials guarantee the maintenance of the geometrical tolerances and correct structures vital to reliable, consistent performance and long life. GAINCIN’s products are rigorouslytested to ensure that they meet the agreed specifications. BALL HARDNESS:THRU HARD’OR‘TOUGH CORE’ GAINCIN’s expertise will ensure that you specify the most suitable grinding media for your particular application. GAINCIN’s ‘thru hard’ ball has a uniform high hardness from surface to core, thus maintaining very good wear properties down to very small diameters.The ‘tough core’ ball has a hard outer layer for long life, coupled with a tough, resilient core giving good impact resistance. Presenting the Hard Facts on Average Volumetric Hardness How hard is hard? The illustrations shown below tell an interesting story. Illustration ‘A’ shows an analysis of the cross sectional hardness of GAINCIN ‘thru hard’ ball. Illustration ‘B’ below shows the same analysis carried out on a ball from another major grinding media manufacturer. The ball in illustration ‘B’ has the same AVH figure as The GAINCIN’s ball and will wear out at the same time. Yet there the similarity ends. After three quarters of the radius, the hardness of the ‘B’ ball dips below that of GAINCIN’s ball. This brings into focus the area of greatest discussion about using AVH values. Over 72% of the final value is made up from the surface and 3/4 radius hardness readings. So AVH tells us relatively little about how a ball is going to perform once it has worn past that stage. The cross sectional hardness profile tells the full ‘inside story’. Q What kind of performance will the ball in illustration ‘B’ below give? A Once the ball has worn down to approximately 2/3 diameter, the remainder will wear away very quickly. Q How will this affect the mill output? A The rapidly wearing grinding media will give rise to an unstable and imbalanced ball charge, resulting in the possibility of more than one top up size being required to ensure the correct mesh of grind. Q How will GAINCIN’s ball perform? A The cross sectional hardness profile shows that GAINCIN’s ‘thru hard’ ball will wear evenly throughout its life. This will give a better size distribution in the mill, and avoid ‘dead zone grinding’. The shape of the ball will be preserved for much longer, giving a far more efficient grind. AVH =0.289 x Surface Hardness (S) + 0.437 x Hardness 3⁄4 R + 0.203 x Hardness 1⁄2 R + 0.063 x Hardness 1⁄4 R + 0.008 x Centre Hardness (C) The conclusions are obvious. High quality such as GAINCIN offers always saves money in the long run. Suizhou Gaincin Machinery Co., Ltd Address: no.1704,economic and technical development zone,Suizhou,P.R.China E-mail:Info@gaincin.com. , cn Kimy.Lee@gaincin.com.cn Tel: 86-722-358 8806 Fax: 86-722-358 8806 x 8002

Minimum Order: 10 long tons

A GLOBAL REPUTATION FOR LEADING-EDGE MANUFACTURING TECHNOLOGY. Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn & showroom: gaincin.store.bossgoo.com)'s steel grinding media is a valuable commodity widely used in power stations for coal grinding, limestone grinding for flue gas desulphurisation, cement production, aerated building block manufacturing and in the mining industry, especially in gold, silver, copper and zinc mines.We also produce mild steel balls for use in ornamental ironwork to act as decorative finials on steel gates and railings. Rolled Steel Balls The major advantage of precision ball rolling, compared with traditional forging methods, is the uninterrupted grain flow. Grinding balls are rolled from selected carbon and alloy steels, produced to a customer’s precise specifications. A special feature of GAINCIN’s manufacturing process is the computerised quench facility, giving uniform surface hardness and controlled cross-sectional hardness essential for very even wear. Quality Control and Hardness Measurement In the long term, the effectiveness of grinding media must be measured by the final cost per tonne of product efficiently ground.GAINCIN's advanced manufacturing methods and materials guarantee the maintenance of the geometrical tolerances and correct structures vital to reliable, consistent performance and long life. GAINCIN’s products are rigorouslytested to ensure that they meet the agreed specifications. BALL HARDNESS:THRU HARD’OR‘TOUGH CORE’ GAINCIN’s expertise will ensure that you specify the most suitable grinding media for your particular application. GAINCIN’s ‘thru hard’ ball has a uniform high hardness from surface to core, thus maintaining very good wear properties down to very small diameters.The ‘tough core’ ball has a hard outer layer for long life, coupled with a tough, resilient core giving good impact resistance. Presenting the Hard Facts on Average Volumetric Hardness How hard is hard? The illustrations shown below tell an interesting story. Illustration ‘A’ shows an analysis of the cross sectional hardness of GAINCIN ‘thru hard’ ball. Illustration ‘B’ below shows the same analysis carried out on a ball from another major grinding media manufacturer. The ball in illustration ‘B’ has the same AVH figure as The GAINCIN’s ball and will wear out at the same time. Yet there the similarity ends. After three quarters of the radius, the hardness of the ‘B’ ball dips below that of GAINCIN’s ball. This brings into focus the area of greatest discussion about using AVH values. Over 72% of the final value is made up from the surface and 3/4 radius hardness readings. So AVH tells us relatively little about how a ball is going to perform once it has worn past that stage. The cross sectional hardness profile tells the full ‘inside story’. Q What kind of performance will the ball in illustration ‘B’ below give? A Once the ball has worn down to approximately 2/3 diameter, the remainder will wear away very quickly. Q How will this affect the mill output? A The rapidly wearing grinding media will give rise to an unstable and imbalanced ball charge, resulting in the possibility of more than one top up size being required to ensure the correct mesh of grind. Q How will GAINCIN’s ball perform? A The cross sectional hardness profile shows that GAINCIN’s ‘thru hard’ ball will wear evenly throughout its life. This will give a better size distribution in the mill, and avoid ‘dead zone grinding’. The shape of the ball will be preserved for much longer, giving a far more efficient grind. AVH =0.289 x Surface Hardness (S) + 0.437 x Hardness 3⁄4 R + 0.203 x Hardness 1⁄2 R + 0.063 x Hardness 1⁄4 R + 0.008 x Centre Hardness (C) The conclusions are obvious. High quality such as GAINCIN offers always saves money in the long run. Suizhou Gaincin Machinery Co., Ltd Address: no.1704,economic and technical development zone,Suizhou,P.R.China E-mail:Info@gaincin.com. , cn Kimy.Lee@gaincin.com.cn Tel: 86-722-358 8806 Fax: 86-722-358 8806 x 8002

Minimum Order: 10 long tons

Specialized in Precision Casting and Forging Ball Grinding Media Fields/Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

Specialized in Precision Casting and Forging Ball Grinding Media Fields/Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Specialized in Precision Casting and Forging Ball Grinding Media Fields Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

Over 20 years' experience in exporting various offorging/rolling grinding steel balls, mill steel rods and cylinders... OEM/ODM services Exporting to Europe and the South America MOQ of 10Tons Specialized in Precision Casting and Forging Ball Grinding Media Fields Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn) has and insists on its own marketing philosophy from production to sales, stable quality and best quality service, mutual benefit with customers. In order to meet various sizes of forging steel grinding media balls, skew rolling steel grinding media balls, casting alloy chromium steel balls with Cr contents range dia.8mm to 150mm,sections,cylinder field development request, we constantly explore and innovate, making our product with the higher quality and diversification to meet the different customer`s request from all over the world. Meeting ISO Standard and SGS All of our grinding steel balls are processed according to the standards of ISO 9001:2008, and our balls conform to the requirements of SGS and RoHS. Work with Us Today Immediately! We sincerely say thanks for our customer, because of your support, we become more professional. Grinding Media Ball is the most common in the world and also the most fascinating, although sometimes we cannot absolute get super-hardness balls, we are still making great efforts to explore and approach it. Gaincin Machinery is an energetic team and we are expecting your cooperation. Contact us today. Suizhou Gaincin Machinery Co.,Ltd 1704,Jingxiu River,Zengdu,Suizhou,Hubei,China info@gaincin.c , om.cn kimy.lee@gaincin.com.cn Tel.fax: 86 0722 358 8806 Showrom: gaincin.store.bossgoo.com

Minimum Order: 10 long tons

ProductName:Galvanized Steel PipeStandard:AiSi, ASTM, bs, DIN, GB, JISmm， etcThickness:2.5-10mm,or as customer‘s requirements，etcOuter Diameter:18- 273 mm,or as customer‘s requirements1000-4000mm，etcLength:as requirementsZincCoating:30-275g/m2

Minimum Order: 1 bags

A GLOBAL REPUTATION FOR LEADING-EDGE MANUFACTURING TECHNOLOGY. Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn & showroom: gaincin.store.bossgoo.com)'s steel grinding media is a valuable commodity widely used in power stations for coal grinding, limestone grinding for flue gas desulphurisation, cement production, aerated building block manufacturing and in the mining industry, especially in gold, silver, copper and zinc mines.We also produce mild steel balls for use in ornamental ironwork to act as decorative finials on steel gates and railings. Rolled Steel Balls The major advantage of precision ball rolling, compared with traditional forging methods, is the uninterrupted grain flow. Grinding balls are rolled from selected carbon and alloy steels, produced to a customer’s precise specifications. A special feature of GAINCIN’s manufacturing process is the computerised quench facility, giving uniform surface hardness and controlled cross-sectional hardness essential for very even wear. Quality Control and Hardness Measurement In the long term, the effectiveness of grinding media must be measured by the final cost per tonne of product efficiently ground.GAINCIN's advanced manufacturing methods and materials guarantee the maintenance of the geometrical tolerances and correct structures vital to reliable, consistent performance and long life. GAINCIN’s products are rigorouslytested to ensure that they meet the agreed specifications. BALL HARDNESS:THRU HARD’OR‘TOUGH CORE’ GAINCIN’s expertise will ensure that you specify the most suitable grinding media for your particular application. GAINCIN’s ‘thru hard’ ball has a uniform high hardness from surface to core, thus maintaining very good wear properties down to very small diameters.The ‘tough core’ ball has a hard outer layer for long life, coupled with a tough, resilient core giving good impact resistance. Presenting the Hard Facts on Average Volumetric Hardness How hard is hard? The illustrations shown below tell an interesting story. Illustration ‘A’ shows an analysis of the cross sectional hardness of GAINCIN ‘thru hard’ ball. Illustration ‘B’ below shows the same analysis carried out on a ball from another major grinding media manufacturer. The ball in illustration ‘B’ has the same AVH figure as The GAINCIN’s ball and will wear out at the same time. Yet there the similarity ends. After three quarters of the radius, the hardness of the ‘B’ ball dips below that of GAINCIN’s ball. This brings into focus the area of greatest discussion about using AVH values. Over 72% of the final value is made up from the surface and 3/4 radius hardness readings. So AVH tells us relatively little about how a ball is going to perform once it has worn past that stage. The cross sectional hardness profile tells the full ‘inside story’. Q What kind of performance will the ball in illustration ‘B’ below give? A Once the ball has worn down to approximately 2/3 diameter, the remainder will wear away very quickly. Q How will this affect the mill output? A The rapidly wearing grinding media will give rise to an unstable and imbalanced ball charge, resulting in the possibility of more than one top up size being required to ensure the correct mesh of grind. Q How will GAINCIN’s ball perform? A The cross sectional hardness profile shows that GAINCIN’s ‘thru hard’ ball will wear evenly throughout its life. This will give a better size distribution in the mill, and avoid ‘dead zone grinding’. The shape of the ball will be preserved for much longer, giving a far more efficient grind. AVH =0.289 x Surface Hardness (S) + 0.437 x Hardness 3⁄4 R + 0.203 x Hardness 1⁄2 R + 0.063 x Hardness 1⁄4 R + 0.008 x Centre Hardness (C) The conclusions are obvious. High quality such as GAINCIN offers always saves money in the long run. Suizhou Gaincin Machinery Co., Ltd Address: no.1704,economic and technical development zone,Suizhou,P.R.China E-mail:Info@gaincin.com. , cn Kimy.Lee@gaincin.com.cn Tel: 86-722-358 8806 Fax: 86-722-358 8806 x 8002

Minimum Order: 10 long tons

A GLOBAL REPUTATION FOR LEADING-EDGE MANUFACTURING TECHNOLOGY. Suizhou Gaincin Machinery Co.,Ltd(info#GAINCIN.com.cn & showroom: gaincin.store.bossgoo.com)'s steel grinding media is a valuable commodity widely used in power stations for coal grinding, limestone grinding for flue gas desulphurisation, cement production, aerated building block manufacturing and in the mining industry, especially in gold, silver, copper and zinc mines.We also produce mild steel balls for use in ornamental ironwork to act as decorative finials on steel gates and railings. Rolled Steel Balls The major advantage of precision ball rolling, compared with traditional forging methods, is the uninterrupted grain flow. Grinding balls are rolled from selected carbon and alloy steels, produced to a customer’s precise specifications. A special feature of GAINCIN’s manufacturing process is the computerised quench facility, giving uniform surface hardness and controlled cross-sectional hardness essential for very even wear. Quality Control and Hardness Measurement In the long term, the effectiveness of grinding media must be measured by the final cost per tonne of product efficiently ground.GAINCIN's advanced manufacturing methods and materials guarantee the maintenance of the geometrical tolerances and correct structures vital to reliable, consistent performance and long life. GAINCIN’s products are rigorouslytested to ensure that they meet the agreed specifications. BALL HARDNESS:THRU HARD’OR‘TOUGH CORE’ GAINCIN’s expertise will ensure that you specify the most suitable grinding media for your particular application. GAINCIN’s ‘thru hard’ ball has a uniform high hardness from surface to core, thus maintaining very good wear properties down to very small diameters.The ‘tough core’ ball has a hard outer layer for long life, coupled with a tough, resilient core giving good impact resistance. Presenting the Hard Facts on Average Volumetric Hardness How hard is hard? The illustrations shown below tell an interesting story. Illustration ‘A’ shows an analysis of the cross sectional hardness of GAINCIN ‘thru hard’ ball. Illustration ‘B’ below shows the same analysis carried out on a ball from another major grinding media manufacturer. The ball in illustration ‘B’ has the same AVH figure as The GAINCIN’s ball and will wear out at the same time. Yet there the similarity ends. After three quarters of the radius, the hardness of the ‘B’ ball dips below that of GAINCIN’s ball. This brings into focus the area of greatest discussion about using AVH values. Over 72% of the final value is made up from the surface and 3/4 radius hardness readings. So AVH tells us relatively little about how a ball is going to perform once it has worn past that stage. The cross sectional hardness profile tells the full ‘inside story’. Q What kind of performance will the ball in illustration ‘B’ below give? A Once the ball has worn down to approximately 2/3 diameter, the remainder will wear away very quickly. Q How will this affect the mill output? A The rapidly wearing grinding media will give rise to an unstable and imbalanced ball charge, resulting in the possibility of more than one top up size being required to ensure the correct mesh of grind. Q How will GAINCIN’s ball perform? A The cross sectional hardness profile shows that GAINCIN’s ‘thru hard’ ball will wear evenly throughout its life. This will give a better size distribution in the mill, and avoid ‘dead zone grinding’. The shape of the ball will be preserved for much longer, giving a far more efficient grind. AVH =0.289 x Surface Hardness (S) + 0.437 x Hardness 3⁄4 R + 0.203 x Hardness 1⁄2 R + 0.063 x Hardness 1⁄4 R + 0.008 x Centre Hardness (C) The conclusions are obvious. High quality such as GAINCIN offers always saves money in the long run. Suizhou Gaincin Machinery Co., Ltd Address: no.1704,economic and technical development zone,Suizhou,P.R.China E-mail:Info@gaincin.com. , cn Kimy.Lee@gaincin.com.cn Tel: 86-722-358 8806 Fax: 86-722-358 8806 x 8002

Minimum Order: 10 long tons