Big Supplier of North China Tangshan Mingtai Grinding Steel Forgings

Specification of grinding balls

Chemical composition 

Economic index

Laboratory result of falling ball

Microscopic constitution and mechanical property

1.As contract, we guarantee the quality,quantity and deliver on time.

2.Our company can regularly send technicist to the scene for tracking service and solve the technical problems in time.

3.Accept customer's technical consultation for wear-resistant material at any time.

We are one of  the biggest casting steel ball manufacturers in the North of China, once we confirm your order, we can deliver the goods in a very short time.

if  you have any questions, please feel free to let me know and we are looking forward to hearing from you!  

Q1.   When did your company set up?

A1.    Tanshan Mingtai Grinding Material Co., Ltd.  set up on May 16th in 2006. We are one the biggest steel ball manufacturers in the North of China.

Q2.   May we know how many grinding balls you can manufacture per year ?

A2.   Over 50000 metric tons .

Q3.    Tell me more about your company

A3.      Our factory has the fixed assets of 60 million RMB and more than 1000 workers, including about 40 technicians. Grinding material products have formed the series. The complex alloy cast iron grinding ball is the initiation at home and abroad and its every economic technical index reaches to the international level. It has won three national patent, numbers: invention: 89102932.x craft 89102884.6, model 89206600.8. it won the second prize at Tangshan Science & Technology Progress Meeting in 1987, the excellent products prize in the National Grinding Ball Selection  Material and Comprehensive test in 1988 and the invention wisdom prize in the 3^rd and 4^th Session of Hebei Invention Exposition in 1990 and 1991. it was regarded as the middle and small cement enterprise energy-saving reform products at the Meeting of the National Building Materials Bureau Nanjing Middle and Small Cement Enterprise Choosing the Excellence in May, 1990, won the silver medal at the 5^thSession of National Invention Exposition in October 1990 and was awarded the reputation cup of “ the high quality and trustable products for customers” by the National Cement Information General Bureau in 1990.In 1994 it won the title of “ 94’ National Cement Industry, Ten Best Enterprise”. 

Q4.    What's the differents between th casting ball and forged ball ?

A4 .   Steel ball is divided into two categories: casting steel ball and forging steel ball.

A, cast steel ball casting grinding ball) scrap, scrap metal, scrap charge by intermediate frequency electric furnace is used for heating and warming to charge fully melted steel ball manufacturer. In charge of melting process add just the right amount of precious metal alloys (such as ferrochrome, ferromanganese, ferrovanadium, etc.) to the furnace into the chemical composition of quenching and tempering, temperature of molten iron to be reached more than 1550 DEG C and meet process requirements after the qualified molten iron is poured into the die steel or steel ball production lines mold. That is, by means of the method of casting, the steel ball is made of casting steel ball (ball).

Such as casting grinding ball chromium content is more than or equal to 10.0%, containing carbon content between the 1.80%-3.20% are said for high chromium alloy cast ball (also known as the high chromium, high chromium cast iron grinding ball and high chromium steel) and national standard requirements of high chromium ball hardness (HRC) must be greater than or equal to more than 58, impact value AK is more than or equal to 3.0J/ cm 2, if the hardness of high chromium ball must use high temperature quenching + tempering.

         some of the products have been largely distributed to Russia, Mongolia, India , Malaysia , Japan and other countries and regions