CHENDDA
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.
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.
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 |
Production equipment
Factory --Clean and orderly factory environmentClean and orderly factory environmentE EnvironmentClean and orderly factory envirnmentnvironmelean and orderly factory environmenttEnvironmentEnvironmentEnvironment
Process flowchart - Quality control
CCTV - interview
On October 9, 2022, Shijiazhuang Chengda Wear-resistant Material Co., Ltd. accepted the interview of CCTV CCTV-13.
Certifications
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.
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