Industrial High Hardness HRC 60-68 forged grinding media steel balls B3
We are one of the largest factory specialized in producing Forging Grinding Media Ball, Rolling Grinding Media Ball and Casting Grinding Media Ball in China. It was founded in 1998, located in Zhangqiu City, Shandong Province, China. Annual Production Capacity is 50,000 metric ton. There are 120 employees, covering an area of 15,000 square meters. Our products have been exported to more than 30 countries and got a lot of praise. We have large-scale production workshop, advanced production equipment and perfect quality assurance system. Our company has passed ISO9001:2000 quality system authentication and we always keep sincere service promise.
The production process of the forged grinding balls
1). Raw material:
All the material is qualified with certificate and made in the Chinese largest steel production enterprise.
2). Different steel specifications ccording to the clients's requirements.
Main Steel Material :C45 Steel;60Mn Steel;B2 Steel
3). Steel Cutting:
the steel bars should be cut into small pieces according to the size of steel balls required by the order.
4). Heating:
we use the electric furnace instead of the traditional coal stove, the biggest advantage is that all the steel bars can accept the most approriate temperature during the heating progress. It affect the hardness and toughness directly.
5). Hammer forging:
The raw material is forged to a certain deformation by the air hammer, when the compression ratio increased, the micro-structure become more compact so that the hardness and the toughness can be improved.
6). Heat treatment:
Both the water quenching heat treatment production line and our own temperature control technics are important.
We have mature production technicians responsible for the heat treatment process as we know this process affect the grinding balls performance directly.
7). Quality Control.
Raw material test before production
Hardness test Drop Test Impact Test Core pulling Test after production
SGS test before delivery
Certificate: ISO 9001:2008
Chemical Elements of Ball Mill Grinding Steel Cylpebs
| 1) 60Mn Forged grinding ball | HRC58-65 | ≥HRC44 | C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; | |||||
| 2) B2 Forged grinding ball | HRC60-68 | ≥HRC55 | C: 0.75-0.90; Si:0.17-0.37; Mn:0.7-0.9; | |||||
| 3) B3 Forged grinding ball | HRC60-68 | ≥HRC55 | C:0.55-0.65; Si:0.2-0.37; Mn:0.75-0.9; Cr:0.85-1.2;S/P≤0.03; | |||||
| 4) B4 Forged grinding ball | HRC60-68 | ≥HRC58 | C:0.58-0.66; Si:1.6-1.9; Mn:0.65-0.80; Cr:0.7-0.9; S/P≤0.03; | |||||
| 3) High chrome cast grinding ball | HRC58-65 | ≥HRC55 | Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5; | |||||
| 4) Low chrome cast grinding ball | HRC48-55 | ≥HRC46 | Cr:1-3; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; | |||||
| 5) Medium chrome cast grinding ball | HRC50-60 | ≥HRC48 | Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; | |||||
DIA 20 | | 32 | 31250 | ≥12 | ||||
Nominal diameter | Diametrical tolerance | Weight of Single | Number of piece of | Impact | ||||
DIA 60 | | 888 | 1126 | |||||
DIA 110 | +4 | 5457 | 182 | |||||
DIA 140 | +4 | 11278 | 88 | |||||
Testing,Packing:
Quality control for each production shift (4hours/Shift);
Hardness, chemical elements and impact testing after production for each production shift;
SGS –third party testing before each delivery
1.Bags:1000KG polypropylene bags which are highly resistant to UV rays and secure bag straps to reduce time and effort in loading and unloading.
2.Drums:Recyeled drums can also be supplied. The drums have a removable lid and compression ring for secure storage.Drums are more efficient for some modes of transportation and can also be delivered on wooden pallets.
Shipping:
1.Port of Loading: Qingdao Port,China
2.Partial shippment allowed
3.By DHL/TNT express for samples order.Door to door to delivery;
4.Appointed freight forwarder by customers is acceptable
Company Information
1.Professional Grinding balls Manufactory founded in 1981;
2.Advanced production equipment;
3.Exported more than 20 countries;
4.Experienced development personnel,professional designers,salesman and skilled workers
5.Capacity:10000mt/month.
Our Services
1. Free samples for your test before orders;
2. Soonest delivery time ;
3. Cooperate with many famours shipping companies,and sent the goods to your port safe and in time;
4. Any feedback after sales would get our soonest reply.
WE LOOK FORWARD TO THE OPPORTUNITY TO DISCUSS HOW WE CAN BECOME A PARTNER IN YOUR SUPPLY CHAIN SOLUTION .
