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.
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hot rolling grinding steel ball Size:25mm-150mm
HRC 60min, CR:10-28, C:2.0-3.0, SI: 1.0max, MN:0.4-0.8, P: 0.08max, S: 0.08max. Steel Drum, 58*58*89cm.
Grinding Balls are made from high carbon steel bars with the proper alloying elements. Bars are heated to high enough temperatures to make them sufficiently malleable to be cut and formed into nearly perfect spheres. Balls are then heat-treated to provide them the necessary wear and impact resistance properties. Fine grinding of mineral ore particles. Can also be used for pulverising of coal, cement and other building materials. High carbon steels (0.5 - 0.95%C) with controlled amounts of alloying elements. Logistics: As a result of this diverse geographical spread, we have established a vast network of logistics solutions to suit the individual requirements of our customers, no matter how challenging. Technical: We take pride in our ability to back our product quality with the technical support necessary to ensure the optimum outcome is obtained from the application of our grinding media. This service ranges from the recommendation of ball sizes to the optimisation of steel grades, through to determination of graded mill charges for new milling projects.
Supply Ability: 50 sets per Month Keywords: Small Mini Ball Mill 1 Ton Per Hour Dimension(L*W*H):Customized Capacity(t/h): 0.2-40TPH Warranty of core components: 5 years Name: Grinding Ball Mill cement gold processing Machine Prices Motor Type: AC Motor Feeding size(mm):â?¤10,â?¤15,â?¤25 Factory Visit: Welcomed Warmly Discharging 0.074-0.4 Machinery Test Report: Provided Condition: New Balls load: 0.5-17.5t Place of Origin: China Warranty: 1 Year Advantages: High Efficiency Low Energy Color: Customer Requirement Weight: 17800 KG Brand Name: XKJ Type: Ball Mill Video outgoing-inspection: Provided Cylinder RPM(r/min): 24.1-45.5 Core Components: PLC,Engine,Gearbox,Motor,Gear ,Pump Marketing Type: New Product 2020 Applicable Industries: Manufacturing Plant,Machinery Price: Negotiable and reasonable Packaging Detail: Standard containers
Size: 12.7mm-120mm Surface hardness: hrc58-66 Chemical elements: c: 1.8-3.3; si: 0.3-1.2; mn: 0.3-1.0; s & p: 0.1max; cr: 10-30( details can be adjusted by users demand). Id from 12.7mm to 130mm high chrome grinding media
Part characteristic The surface hardness of ball will be raised further in using the course, and the wear resistance would gather hard, so can raise mill machine production capacity at the same time, and raises cement ratio surface area and reclaim ratio of the extractive mind. Details view three W dot chinagrindingmedia dot com or Skype: kathysong0425 Specification: A: high hardness in+surface hrc 58-65 and core hrc 56-62 B: good wear resistant C: few breakages D: no mal-roundness. Woven bag or steel drum.
Forged grinding ball features and advantages: 1. Surface hardness of up to 60hrc 2. High volume hardness as large as 55hrc to 60hrc, uniform hardness distribution 3. High impact toughness of greater than 12j/cm² 4. Low breakage rate, peel fragmentation resistance property of over 20000 times 5. Actual breakage rate not greater than 1% and close to 0
Our cast iron grinding balls can be divided into three categories including the high chromium type, medium chromium type and the low chromium type. 1. The quality index of the high chromium type The chromium content of the high chromium type product is greater than or equal to 10.0%. And the carbon content is between 1.80% and 3.20%. It is required by the national standard that the hardness of the high chromium type product must be no less than 58hrc, and that the impact value should be greater than or equal to 3.0j/cm. This type of product must go through the hot quenching and the tempering treatment to come up to the hardness. Currently at home, there are two quenching methods for this type of product including oil quenching and wind quenching. If the tested hardness of this type of product is below 54hrc, then it shows that the quenching treatment is omitted. 2.The quality index of the medium chromium type The medium chromium type cast iron grinding ball is defined as the chromium content ranging from 3.0% to 7.0%, and the carbon content coming between 1.80% and 3.20%. Its impact value should be no less than 2.0j/cm. . The national standard requires the hardness of this type of product should be greater than or equal to 47hrc. For ensuring the quality, the medium chromium type product should be processed with high temperature tempering to eliminate the casting stress. If the surface of the steel ball assumes the dark red color, it proves that the steel ball has been processed with high temperature tempering. If the surface of the steel ball still comes with the metal color, then, we can judge that the steel ball doesn’t go through the high temperature tempering treatment.
Our product has precise size, high hardness, high roundness and mechanical properties. It won't deform and crack during its service life. The surface hardness of our product can reach up to 57HRC to 67HRC, and volume hardness can reach up to 56HRC to 64HRC, the difference between the hardness of surface and center are no more than 2HRC. Besides, the impact toughness of our product is greater than 12J/cm2. Further more, the breakage rate of our product is no more than 1% and are close to 0. Our product are widely used in processing facilities such as the iron&steel plant, mineral processing plant, refractory material plant and phosphate fertilizer plant, etc. Above all, all of our products can be customized according to customers’ requirements.
