Grinding Media Steel Rods
Diameters from 30mm to 120 mm
Length: 3 to 6 meters
Surface hardness :45-55HRC
The unevenness of the grinding rod is less than 0.2%. Diameter tolerance+1.5mm; length tolerance +25mm, breakage is less than 1%.
Our company Shandong Jinchi Heavy Industy Joint-stock Co.,Ltd, is a professional manufcture of grinding steel balls in China., mainly produce grinding steel balls, forged steel balls, grinding rods and other products for over 20 years . And we have passed ISO9001: 2008 Quality Management System certification. we can also produce grinding balls fully meet customer needs according to their specific requirements.
1)Grinding ball:size: DIA20mm to DIA150mm;
2)grinding rods:Dia40-120mm,length can be done according to request of clients.
Materials | C% | Si% | Mn% | P% | S% | Cr% |
B2 | 0.70-0.85 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | 0.4-0.6 |
B2-1 | 0.55-0.70 | 0.15-0.30 | 0.65-0.85 | ≤0.020 | ≤0.020 | 0.70-1.10 |
High Carbon B2 | 0.85-1.10 | 0.15-0.45 | 0.40-1.20 | ≤0.035 | ≤0.035 | 0.20-1.10 |
B3 | 0.58-0.66 | 1.70-1.90 | 0.68-0.80 | ≤0.030 | ≤0.030 | 0.78-0.90 |
45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.25max |
B4 | 0.65-0.75 | 1.20-1.40 | 0.50-0.70 | ≤0.025 | ≤0.025 | 0.85-1.00 |
B6 | 0.75-0.90 | 0.17-0.37 | 0.8-1.02 | ≤0.035 | ≤0.035 | 0.88-0.98 |
B6-1 | 0.82-0.90 | 0.15-0.35 | 0.90-1.05 | ≤0.020 | ≤0.020 | 0.88-0.98 |
BU | 0.95-1.05 | 0.15-0.35 | 0.95-1.05 | ≤0.025 | ≤0.025 | 0.45-0.55 |
1090 | 0.90-1.10 | 0.17-0.37 | 0.60-0.90 | ≤0.025 | ≤0.025 | ≤0.025 |
42CrMo | 0.38-0.45 | 0.20-0.40 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.90-1.20 |
40Cr | 0.37-0.45 | 0.20-0.40 | 0.50-0.80 | ≤0.035 | ≤0.035 | 0.80-1.10 |
65MN | 0.62-0.70 | 0.17-0.37 | 0.90-1.20 | ≤0.035 | ≤0.035 | ≤0.25 |
60MN | 0.57-0.65 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 |
50MN | 0.48-0.56 | 0.17-0.37 | 0.70-1.00 | ≤0.035 | ≤0.035 | ≤0.25 |
Diameter(mm) | Diameter Tolerance(mm) | Surface Hardness(HRC) | Impact Toughness(j/cm2) |
Φ20 | +2， —1 | ＞60HRC | ≥12 |
Φ25 | |||
Φ30 | |||
Φ40 | |||
Φ50 | |||
Φ60 | +3， —2 | ||
Φ70 | |||
Φ80 | |||
Φ90 | |||
Φ100 | +4， —2 | ||
Φ110 | |||
Φ120 | ＞58HRC | ||
Φ130 | |||
Φ140 | +4， —3 | ＞55HRC | |
Φ150 |
Explanation of quality control
Shandong Jinchi Heavy Industry Joint-Stock Co., Ltd. strictly controls each link of wear-resistant steel ball from steel plant selection, raw material purchase, steel inspection, quenching and tempering process control, finished product inspection, and strictly controls the performance index of steel ball according to the ISO9001:2015 quality management system certification procedure of the company, so as to ensure that the performance index of steel ball meets the technical requirements of the project and industry related requirements Technical specifications. Ensure the wear resistance, stability, maturity and reliability of steel ball.
Guarantee measures for raw material ordering
Our company has strategic cooperation agreements with well-known domestic state-owned enterprises, such as Laiwu branch of Shandong Iron and Steel Co., Ltd., Chengde Jianlong Special Steel Co., Ltd. and Huaigang Special Steel Co., Ltd. of Jiangsu shagang group. Each stage from material ordering to material inspection is reviewed and approved by technical experts, and finally determined by the technical director after being signed and confirmed by the relevant responsible person.
Production equipment performance assurance measures
All of them are produced with the most advanced and professional equipment, and cooperate with the process and quality inspection personnel to make the original records of various parameters in the production process, and operate and produce in strict accordance with the process requirements and specifications.
Process technology and quality inspection performance guarantee
Set up the project process specialist and quality inspector, set up the process in strict accordance with the parameters and indicators required by the contract and supervise the implementation of the process. The quality inspector shall track and record each parameter in the whole process.
Packaging and transportation performance guarantee
The packaging standard of the product is strictly in accordance with the international standards, to ensure that it can meet the lifting requirements for many times. Our company has established a strategic partnership system with several key shipping companies and logistics companies at home and abroad. We have transportation insurance for each vehicle, which greatly enhances our ability to resist risks.
Packing of Grinding Rolling Balls
(1)Container Bag:Dia20mm-150mm 1000kg/Container Bag
(2)Steel Drums:Dia20mm-80mm 900kg/Drum Dia90mm-150mm 850kg/Drums
(3)Steel Drum on Pallet or Bag on Pallet
