Forged Grinding Ball - China

Forged Grinding Ball

According to the present situation of 9.75 4.88m SAG mill, grid plate hole 60mm, and we recommended your company changed ball diameter from the original 120 to 125, filling rate from 9-10% to 11-12%, so that it is more effectively to increase the grinding quality and processing ore.

Base on the high quality raw material, the advanced automated equipment, the heat processing and the strict quality control system, we can improve the surface hardness of grinding ball up to 58-65HRC and impact toughness of grinding balls is over 12J/cm².

Features of forged grinding ball

1) High hardness: surface hardness of forged grinding balls is to HRC 58-65 - The tolerance of the core hardness and surface hardness is not over 2HRC;

2) Good Impact Toughness: impact toughness of forged grinding balls is over 12J/cm²;

3) Low Broken Rate: the actual broken rate is not higher than 1%.

Physical Property

Products Surface hardness (HRC) Core hardness (HRC) Impact value Ak(J/cm²) Times of falling balls

60Mn Forged grinding ball 58-65 ≥45 ≥12 ≥10000

B2 Forged grinding ball 60-65 ≥55 B3 Forged grinding ball 60-65 ≥55 B4 Forged grinding ball 60-65 ≥58 Name Chemical Composition(%) C Si Mn Cr P S

60Mn Forged grinding ball 0.52-0.65 0.15-0.37 0.60-1.20 0.25-0.30 0.02 0.02

B2 Forged grinding ball 0.77-0.81 0.26-0.34 0.72-0.80 0.32-0.40 0.02 0.015

B3 Forged grinding ball 0.61-0.65 1.75-1.85 0.73-0.80 0.80-0.88 0.02 0.015

B4 Forged grinding ball 0.68-0.72 1.25-1.35 0.55-0.65 0.85-0.95 0.015 0.015

B6 Forged grinding ball 0.79-0.82 0.15-0.35 0.92-1.02 0.88-0.98 0.015 0.015

Company Contact:

• Posted By: Chengde Rongmao Cast Steel Co.,Ltd

• Phone: 86-010-65003129

• Address: Kuangcheng, Chengde City, Hebei Province, China, Chengde , Hebei , China

• Email:

• Website: http://www.chinarongmao.com/

• Business Description: Chengde Rongmao Cast Steel Co., Ltd. founded in 1980s, and located in historic and cultural city - Chengde China, is a large-scale casting & forging enterprise.
  
  For thirty years Rong Mao has produced Austempered Ductile Iron (ADI) grinding ball, Forged grinding balls, ball mill liner, various models of jaw crusher tooth plate, hammer crusher liner, castor-oil plant section, high-chromium alloy combined hammer and all kinds of high manganese steel castings.
  
  The company has 400 staff, including technical management personnel of 80 and 30 with senior and medium professional titles, and its plant covers an area of 36, 000 square meters, with workshop area of 26, 000 square meters and fixed assets of 200 million yuan.
  
  The annual output is 100, 000 tons.
  
  Faced with fierce market competition, the company relys on advanced production equipment, perfect detection technology, standard casting process, innovative heat treatment experience and scientific testing means, and an accurate analysis of the chemical composition to produce good wear resistance and low broken rate products, which are sold through the country.
  
  “Rong Mao” brand is known nationwide; In 2007 Chengde Rong Mao Cast Steel Co., Ltd successfully passed the ISO9001 quality system certificate and ISO14000 environment system certification.
  
  With stable development, excellent product quality and honest services, the company stands out from the domestic foundry industry, and becomes a key member of China Foundry Association, and in successive years has been awarded as “honor contract and keep promise” company by provincial and municipal government.
  
  Our company has been adhering to high-quality, low-cost, timely business policy to won the recognition of mining, cement, and metallurgical enterprises.
  
  Our products are sold to Hebei, Liaoning, Shandong, Shanxi, Henan, Inner Mongolia, Jilin and North Korea, South Korea, Mongolia, Russia and many countries.
  
  We will insist the business philosophy of "science and technology as the driving force, survival on quality, and good faith striving for the development", dedicate to provide you with first-class products and quality service, and welcome new and regular customers to come and give guidance.
  
  Let's meet in Chengde, China.