Grinding Rod Mill In Swaziland Ball Mill

Home → Grinding Rod Mill In Swaziland Ball Mill

Grinding Rod Mill In Swaziland Ball Mill

Jaw crushers usually do not work independently, but together with cone crushers, impact crushers, sand making machines, vibrating screens, etc., constitute a complete set of sand and gravel processing systems to achieve accurate processing of ore and rock and improve product pertinence , Increase its market value. Common production lines are: stone production line and sand production line.

Stone production line

On the basis of the stone production line, sand making machine equipment for fine crushing and shaping is added, which can realize the simultaneous production of machine-made sand and crushed stone. The entire production line is flexible in construction and diverse in output, which can meet the various processing requirements of customers. , To achieve the purpose of "one line with multiple uses", it is an ideal production line choice for producing highway surface materials, high-speed railway sand and gravel aggregates, hydropower station sand and gravel materials, port terminals and airport runways.

Read More →

Rod Mill with Good Price for Mining Industrial Ore ...

Overflow rod mill is the most common mining rod mill model. The product particle size is finer than the other two rod mills, generally used to grind the crushed products, and then provide it to the ball mill for further grinding. End peripheral ore discharge rod mill. The discharge end of this mining rod mill is located at the end of the barrel.Overflow rod mill is the most common mining rod mill model. The product particle size is finer than the other two rod mills, generally used to grind the crushed products, and then provide it to the ball mill for further grinding. End peripheral ore discharge rod mill. The discharge end of this mining rod mill is located at the end of the barrel.

Click

Rod Mill - 中国电商运营论坛

2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...

Click

Grinding Mill Design Ball Mill Manufacturer

2017-2-20  CRRK is the common type in wet grinding. The PRRK-series is often used for dry grinding in rod mills, and in certain ball mill applications. Type CHRK is designed for primary autogenous grinding, where the large feed opening requires a hydrostatic trunnion shoe bearing. Small and batch grinding mills, with a diameter of 700 mm and more, are ...2017-2-20  CRRK is the common type in wet grinding. The PRRK-series is often used for dry grinding in rod mills, and in certain ball mill applications. Type CHRK is designed for primary autogenous grinding, where the large feed opening requires a hydrostatic trunnion shoe bearing. Small and batch grinding mills, with a diameter of 700 mm and more, are ...

Click

Horizontal Coarse Grinding Mill Rod Mill Product ...

The Rod Mill is the same as the Ball Mill in the construction and available to both of wet and dry processing. Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill. In other words, the Rod Mill gives impact on and grinds coarse particles ...The Rod Mill is the same as the Ball Mill in the construction and available to both of wet and dry processing. Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill. In other words, the Rod Mill gives impact on and grinds coarse particles ...

Click

What are the differences between ball mill and rod

2021-3-8  Ball mill and rod mill are suitable for different materials. 1. Selection by material's hardness. Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc. Rod mill is suitable for grinding brittle material, such as rare metals. 2.2021-3-8  Ball mill and rod mill are suitable for different materials. 1. Selection by material's hardness. Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc. Rod mill is suitable for grinding brittle material, such as rare metals. 2.

Click

History of the Ball Mill and Rod Mill - Grinding Balls ...

2020-4-24  At the same time, grinding machines have also developed accordingly, and a ball mill with a wide range of uses appeared in the early 19th century. In 1870, on the basis of ball mill, rod mill with uniform discharge size was developed. In 1908, a self-grinding machine without grinding medium was 2020-4-24  At the same time, grinding machines have also developed accordingly, and a ball mill with a wide range of uses appeared in the early 19th century. In 1870, on the basis of ball mill, rod mill with uniform discharge size was developed. In 1908, a self-grinding machine without grinding medium was

Click

What is a Rod Mill? (with picture) - InfoBloom

The rod mill is generally more efficient than the ball mill due to its more effective cascading action and the greater bearing surface offered by the rods. This means it can operate at lower speeds and with less grinding agents and producing less undesirable The rod mill is generally more efficient than the ball mill due to its more effective cascading action and the greater bearing surface offered by the rods. This means it can operate at lower speeds and with less grinding agents and producing less undesirable

Click

Development, application and operating results of the ...

2020-10-13  A rod mill may be defined as a rotating cylindrical shell lined with wear-resistantrenewable liners and carrying a charge of rods that reduce the mill feed by abrasion and impact as the rods cascade within the shell. A rod mill differs from a ball mill in that the comparatively rigid grinding2020-10-13  A rod mill may be defined as a rotating cylindrical shell lined with wear-resistantrenewable liners and carrying a charge of rods that reduce the mill feed by abrasion and impact as the rods cascade within the shell. A rod mill differs from a ball mill in that the comparatively rigid grinding

Click

Comparison of the Primary Grinding of Taconite in a

The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.

Click

Rod Mill - Great Wall

2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding 2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding

Click

Rod Mill - 中国电商运营论坛

2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...

Click

HXJQ : Rod Grinder,Rod Mill,Crushing Mill,Grinding

2019-5-31  Features of Rod Grinding Machine. During the grinding process, the grinding medium line contacts with the ores. Due to selective grinding, the granularity of products is more even, resulting into less ore grains. In coarse grinding, bar mills have greater capacity than the ball mills of the same specification. Working Principle of Rod Grinding Mill2019-5-31  Features of Rod Grinding Machine. During the grinding process, the grinding medium line contacts with the ores. Due to selective grinding, the granularity of products is more even, resulting into less ore grains. In coarse grinding, bar mills have greater capacity than the ball mills of the same specification. Working Principle of Rod Grinding Mill

Click

Rod Mill,Pin Crusher,Rod Grinding Machine,Rod

2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill 2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill

Click

Horizontal Coarse Grinding Mill Rod Mill Product ...

The Rod Mill is the same as the Ball Mill in the construction and available to both of wet and dry processing. Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill. In other words, the Rod Mill gives impact on and grinds coarse particles ...The Rod Mill is the same as the Ball Mill in the construction and available to both of wet and dry processing. Unlike the Ball Mill, however, the Rod Mill uses rods instead of balls as the grinding medium. As a result, its uses are different from those with the Ball Mill. In other words, the Rod Mill gives impact on and grinds coarse particles ...

Click

Rod Mill - an overview ScienceDirect Topics

Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.

Click

History of the Ball Mill and Rod Mill - Grinding Balls ...

2020-4-24  At the same time, grinding machines have also developed accordingly, and a ball mill with a wide range of uses appeared in the early 19th century. In 1870, on the basis of ball mill, rod mill with uniform discharge size was developed. In 1908, a self-grinding machine without grinding medium was 2020-4-24  At the same time, grinding machines have also developed accordingly, and a ball mill with a wide range of uses appeared in the early 19th century. In 1870, on the basis of ball mill, rod mill with uniform discharge size was developed. In 1908, a self-grinding machine without grinding medium was

Click

Development, application and operating results of the ...

2020-10-13  A rod mill may be defined as a rotating cylindrical shell lined with wear-resistantrenewable liners and carrying a charge of rods that reduce the mill feed by abrasion and impact as the rods cascade within the shell. A rod mill differs from a ball mill in that the comparatively rigid grinding2020-10-13  A rod mill may be defined as a rotating cylindrical shell lined with wear-resistantrenewable liners and carrying a charge of rods that reduce the mill feed by abrasion and impact as the rods cascade within the shell. A rod mill differs from a ball mill in that the comparatively rigid grinding

Click

AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator

Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill

Click

Comparison of the Primary Grinding of Taconite in a

The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.

Click

Small Laboratory Rod Mill With Uniform Particles For

Rod Mill is applicable to lab.for wet fine grinding of ore and other materials.Steel ball may be used instead of steel rod in the ball mill.In rod grinding,fine product particle fractions are relatively uniform with rare occurrence of over grinding and high efficiency.In general,rod grinding is introduced for test on ore for separability and manual fine grinding of placer materials.Rod Mill is applicable to lab.for wet fine grinding of ore and other materials.Steel ball may be used instead of steel rod in the ball mill.In rod grinding,fine product particle fractions are relatively uniform with rare occurrence of over grinding and high efficiency.In general,rod grinding is introduced for test on ore for separability and manual fine grinding of placer materials.

Click

Ball Mills Industry Grinder for Mineral Processing ...

2021-6-11  The ball milling process prepared by rod mill, sag mill (autogenous / semi autogenous grinding mill), jaw crusher, cone crusher, and other single or multistage crushing and screening. 【 Ball mill manufacturer 】 With more than 35 years of experience in grinding balls mill technology, JXSC design and produce heavy-duty scientific ball mill ...2021-6-11  The ball milling process prepared by rod mill, sag mill (autogenous / semi autogenous grinding mill), jaw crusher, cone crusher, and other single or multistage crushing and screening. 【 Ball mill manufacturer 】 With more than 35 years of experience in grinding balls mill technology, JXSC design and produce heavy-duty scientific ball mill ...

Click

Rod Mill - 中国电商运营论坛

2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...2020-5-7  At present, rod mill is the most effective crushing machine and its performance has achieved the international standard. It is widely applied in the gravel industry. And it is mainly used for processing or crushing the feldspar, quartz, minerals and other raw materials, and it is also suitable for finely or secondarily crushing the various tough or brittle materials, such as grinding material ...

Click

Rod Mill - Great Wall

2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding 2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding

Click

Rod Mill,Pin Crusher,Rod Grinding Machine,Rod

2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill 2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill

Click

Rod Mill - an overview ScienceDirect Topics

Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.

Click

Rod Mill - Hongxing Machinery

2019-3-28  When particle size is required to be within 2.0-0.5 mm, we generally use rod grinding machine whose maximum product size is smaller than 4.7 mm and minimum size not less than 0.4 mm.. Brief introduction to Hongxing rod mill. Rod mill can be pided into dry rod mill and wet rod mill, so users can choose proper rod mill according to their own actual situations.2019-3-28  When particle size is required to be within 2.0-0.5 mm, we generally use rod grinding machine whose maximum product size is smaller than 4.7 mm and minimum size not less than 0.4 mm.. Brief introduction to Hongxing rod mill. Rod mill can be pided into dry rod mill and wet rod mill, so users can choose proper rod mill according to their own actual situations.

Click

Comparison of the Primary Grinding of Taconite in a

The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.The purpose of this study was to compare the performance of a mill charged with rods with the performance of the same mill charged with balls at the pilot scale. The first objective was to establish whether we could achieve the same throughput rate at the same mesh-of-grind in a mill in which the rod media has been replaced by balls.

Click

Grinding Mills and Their Types – IspatGuru

2015-4-9  Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod.2015-4-9  Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod.

Click

AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator

Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill

Click

Rod Mill - Great Wall

2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding 2021-6-10  The rod mill is loaded with the grinding media of steel bars. It consists of five parts including cylinder shell, feeding system, discharge system, main bearing and transmission system. It is available for both of the dry grinding and wet grinding

Click

Ball Mills Industry Grinder for Mineral Processing ...

2021-6-11  The ball milling process prepared by rod mill, sag mill (autogenous / semi autogenous grinding mill), jaw crusher, cone crusher, and other single or multistage crushing and screening. 【 Ball mill manufacturer 】 With more than 35 years of experience in grinding balls mill technology, JXSC design and produce heavy-duty scientific ball mill ...2021-6-11  The ball milling process prepared by rod mill, sag mill (autogenous / semi autogenous grinding mill), jaw crusher, cone crusher, and other single or multistage crushing and screening. 【 Ball mill manufacturer 】 With more than 35 years of experience in grinding balls mill technology, JXSC design and produce heavy-duty scientific ball mill ...

Click

Rod Mill,Pin Crusher,Rod Grinding Machine,Rod

2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill 2019-5-31  Rod mill is called rod grinder because of the wear-resistant steel bars fitted in. Grinding rod mill achieves a larger reduction ratio and more uniform fineness with steel rods instead of the ball. Besides, rod mill can avoid the phenomenon that materials are over crushed. MBS Rod mill is a new type mill

Click

Rod Mill - Hongxing Machinery

2019-3-28  When particle size is required to be within 2.0-0.5 mm, we generally use rod grinding machine whose maximum product size is smaller than 4.7 mm and minimum size not less than 0.4 mm.. Brief introduction to Hongxing rod mill. Rod mill can be pided into dry rod mill and wet rod mill, so users can choose proper rod mill according to their own actual situations.2019-3-28  When particle size is required to be within 2.0-0.5 mm, we generally use rod grinding machine whose maximum product size is smaller than 4.7 mm and minimum size not less than 0.4 mm.. Brief introduction to Hongxing rod mill. Rod mill can be pided into dry rod mill and wet rod mill, so users can choose proper rod mill according to their own actual situations.

Click

Rod Mill - an overview ScienceDirect Topics

Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.Overcharging results in poor grinding and losses due to abrasion of rods and liners. Undercharging also promotes more abrasion of the rods. The height (or depth) of charge is measured in the same manner as for ball mill. The size of feed particles to a rod mill is coarser than for a ball mill. The usual feed size ranges from 6 to 25 mm.

Click

Coal Mill Rod Grinder Rod Mill Crushing Mill Grinding

Grinding rod mill grinding rod mill The wet type rod mill occupies a great position in the rod grinder and it can rival with dry rod mill but it also have some differences with overflow rod mill used grinding equipment ball rod sag mills , coal mill rod grinder rod mill crushing mill grinding rod. Email: [email protected] Get a Quote Send InquiryGrinding rod mill grinding rod mill The wet type rod mill occupies a great position in the rod grinder and it can rival with dry rod mill but it also have some differences with overflow rod mill used grinding equipment ball rod sag mills , coal mill rod grinder rod mill crushing mill grinding rod. Email: [email protected] Get a Quote Send Inquiry

Click

7 Differences Between Ball Mill and Rod Mill - Xinhai

2018-11-29  Ball mill and rod mill are the common grinding equipment widely used in the mineral processing plant. They are similar in shape and grinding principle, but also different in structure, performance and application. Here are seven differences between ball mill and rod mill to tell you how to choose the ball mill and rod mill.2018-11-29  Ball mill and rod mill are the common grinding equipment widely used in the mineral processing plant. They are similar in shape and grinding principle, but also different in structure, performance and application. Here are seven differences between ball mill and rod mill to tell you how to choose the ball mill and rod mill.

Click

what is rod mill? - 知乎

2016-3-23  Rod Mill (1)Rod mill is usually selected in order to prevent over grinding in gravity or magnetic separation plant of tungsten tin and other rare metals mine (2)In two stages grinding, the capacity of rod mill used in the first stage grinding is larger than ball mill’s2016-3-23  Rod Mill (1)Rod mill is usually selected in order to prevent over grinding in gravity or magnetic separation plant of tungsten tin and other rare metals mine (2)In two stages grinding, the capacity of rod mill used in the first stage grinding is larger than ball mill’s

Click

AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator

Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill

Click

Grinding Mills and Their Types – IspatGuru

2015-4-9  Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod.2015-4-9  Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill, except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter, so the kinetic energy of a single dropping ball is smaller than a rod.

Click