Chengda can provide diameter 4.6mm-140mm and the chrome content ranges from 0.8%-28%,which can be customized according to different needs of users.
It not only improves the grinding efficiency,reduces the time of stopping the grinding machine for selection and adding of the balls,but also extends the clearance cycle,reducesthe labor intensity,and has important significance for improving the output of themill,ensuringthe quality of the abrasive,and reducing the consumption of power consumption and the grinding media.
The national standard requires that the hardness difference between the surface and core is less than 3HRC.
ourc company's patented products, the surface hardness is 59 HRC while the core hardness 58.8 HRC. the internal and external
hardness difference is controlled with in 0.2HRC,the impact toughness is reached 10 J/ cm²
It has been unanimously recognized by the majority of mine metallurgical users.
At the forefront of industrial innovation, we are excited to introduce our latest advancements in grinding technology with high chrome grinding media balls. Designed for superior performance and durability, these balls are revolutionizing the way industries approach grinding processes. Join us as we explore the unique features and benefits of our high chrome grinding media.
Our high chrome grinding media balls are engineered to deliver unparalleled performance in demanding industrial applications. Made from a specialized high chrome alloy, these balls offer exceptional hardness and wear resistance, ensuring long-lasting durability. Whether you are processing minerals, cement, or other materials, our high chrome grinding media balls are designed to optimize grinding efficiency and reduce operational costs. With a focus on quality and reliability, our products are the ideal choice for industries that demand excellence.
Chromiun Alloy Grinding Steel Balls Chemical Components
| Designation |
Chemical Composition(%) |
| C |
Si |
Mn |
Cr |
Mo |
Cu |
Ni |
P |
S |
| ZQCr26 |
2.0-2.6 |
≤1.0 |
0.3-1.5 |
23.0-27.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.06 |
≤0.06 |
| ZQCr20 |
2.0-2.6 |
≤1.0 |
0.3-1.5 |
18.0-23.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.06 |
≤0.06 |
| ZQCr15 |
2.0-2.6 |
≤1.0 |
0.3-1.5 |
14.0-18.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.06 |
≤0.06 |
| ZQCr12 |
2.2-3.0 |
≤1.0 |
0.3-1.5 |
10.0-14.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.06 |
≤0.06 |
| ZQCr8 |
2.2-3.0 |
≤1.0 |
0.3-1.5 |
7.0-10.0 |
≤1.0 |
≤0.8 |
≤1.0 |
≤0.06 |
≤0.06 |
| ZQCr5 |
2.2-3.2 |
≤1.0 |
0.3-1.5 |
4.0-6.0 |
≤1.0 |
≤0.8 |
≤1.0 |
≤0.08 |
≤0.08 |
| ZQCr2 |
2.2-3.2 |
≤1.0 |
0.3-1.5 |
1.0-3.0 |
≤1.0 |
≤0.8 |
≤1.0 |
≤0.10 |
≤0.10 |
| ZQCADI |
3.3-3.9 |
2.4-3.0 |
1.4-1.9 |
0.2-0.5 |
≤0.5 |
0.1-0.5 |
0.1-0.5 |
≤0.05 |
≤0.05 |
Chromium Alloy Grinding Steel Balls Specification
| Specification (mm) |
Weight of Each Ball (Kg) |
Pcs/ton |
T/m³ |
| φ15 |
0.017 |
58824 |
4.94 |
| φ17 |
0.024 |
41667 |
4.91 |
| φ20 |
0.037 |
27027 |
4.89 |
| φ25 |
0.070 |
14286 |
4.87 |
| φ30 |
0.110 |
9091 |
4.85 |
| φ40 |
0.257 |
3891 |
4.76 |
| φ50 |
0.500 |
2000 |
4.70 |
| φ60 |
0.867 |
1153 |
4.66 |
| φ70 |
1.070 |
729 |
4.62 |
| φ80 |
2.050 |
487 |
4.60 |
| φ90 |
2.900 |
345 |
4.58 |
| φ100 |
4.000 |
250 |
4.56 |
| φ110 |
5.300 |
188 |
4.55 |
| φ120 |
6.800 |
147 |
4.54 |
| φ125 |
7.750 |
129 |
4.52 |
| φ130 |
8.740 |
114 |
4.50 |
Excellent wear resistance: The chemical composition of the high chromium alloy wear layer has a high carbon content, and the chromium content is as high as about 30%, the volume fraction of Cr7C3 carbide in the metallographic structure reaches more than 50%, and the macroscopic surface hardness is HRC56~62, which makes its wear resistance significantly improved.
Good impact resistance: the substrate is low carbon steel or low alloy steel and other ductile materials, wear-resistant layer combined with the substrate, showing good impact resistance, suitable for bearing high drop hopper and other impact and wear material handling system.
Good corrosion resistance: Because the alloy layer contains a high percentage of chromium metal, it has a certain rust and corrosion resistance, which is suitable for the occasions of easy adhesion materials
Production equipment
Process flowchart - Quality control
Chengda has the whole process inspection and testing center (raw material testing + semi-finished product testing + finished product testing) ,we have Germany large direct reading spectrometer, automatic carbon sulfur analyzer, CNC EDM cutting machine, Rockwell hardness tester impact testing machines and other testing machines. The purpose is to:
(1)Strengthen the supply and quality control of raw materials
(2)Comprehensive digital quality management (3)Strictly implement quality control procedures (4)Multilink detection
CCTV - interview
On October 9, 2022, Shijiazhuang Chengda Wear-resistant Material Co., Ltd. accepted the interview of CCTV CCTV-13.
Certifications
Three invention patents, 13 utility patents" available, not only greatly promoted the technological progress of the enterprise, but also made the enterprise into the "high-tech enterprises, innovative small and medium-sized enterprises in Hebei Province, specialized and special small and medium-sized enterprises in Hebei Province, small and medium-sized enterprises in Hebei Province" series. It is also supported by the National Innovation Fund.
Packaging & Shipping
(1) Balls can be provided in 1 ton flexible container bag with secure lifting straps. Bags can be strapped onto wooden pallets as per demand.
(2) Balls can be provided in steel drums, 850- 930KGS/DRUM. Drums can be strapped onto wooden pallets as per demand.
(3) We have long-term logistics partners to meet the different trade terms of sea or rail transport.
Company Profile
Shijiazhuang Chengda Wear resistant materials Co.,LTD. a certified ISO 9001Company, specializes in the design, development, production, and servicing of high chromium wear resistant materials for grinding equipment in cement, mining and quarry industries.
CHENDDA manufactures High chromium cast grinding media which is wear, corrosion and impact resistant helps in efficient ball mill grinding.
Our grinding media is tailor made for each milling application. There is a wide range of alloying options which are decided after adequate test work and technical analysis. We manufacture grinding media with chrome content ranging from 1 % to 30 % in sizes ranging from 15 mm to 140 mm as required by the application
Big balls, ranging from 140 mm to 60 mm, Chrome range from 10% - 28%,Optimal Hardness ranging from 57 - 66 HRc , are essentially used in the first chamber of the mills for crushing the feed material. These balls impart potential energy for crushing and thus required to possess a combination of wear and impact resistance
Grinding by attrition is accomplished by numerous small balls of varying sizes from 15mm to 60mm,Chrome range from 10% - 30% and Optimum Hardness ranging from 60 - 69HRc in second chamber. These balls contribute significantly to the grinding efficiency of the mills. Quality control of the final product depends much on the quality of the balls used.
Our commitment is to deliver reduction in wear cost, improve equipment availability, enhance mill productivity, reduce energy cost (Carbon foot-print) and improve metal recoveries through optimization in flotation process. With a legacy of more than 20 years in China , we have set benchmarks in quality, services and innovation, establishing a strong reputation as a solution provider.
The value our products bring to the customers - doing more with less.
Corporate Vision
Gather strength, provide a platform for every striving person to achieve themselves, and create a world-class grinding supplier.
At your service anytime, anywhere! Chengda company has always taken customer needs as the core and driving force of enterprise development, from early communication to process improvement, from product specifications to delivery, each link has a professional team to provide sincere service.
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