Audited Supplier
1. Grade: Dive into a selection of superior materials including 45#, 50Mn, 60Mn, 65Mn, B2, B3, BL, BG that guarantee durability and performance excellence.
2. Diameter: Crafted with precision, our grinding balls range from 20mm to 150mm, catering to diverse milling requirements.
3. Hardness: Engineered to withstand rigorous conditions, our balls boast a hardness range of HRC 55-65, ensuring longevity and consistent performance.
4. Breakage Rate: Our products are designed with resilience in mind, maintaining a breakage rate of less than 1% for dependable operation.
5. Impact Value: >12j/Cm^2 - Experience remarkable toughness as our grinding balls absorb significant impact, ensuring optimal milling efficiency.
6. Falling ball times: With a longevity exceeding 20,000 cycles, our balls are built to endure, promising reliability and exceptional wear resistance.
| 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 |
1. Ocean Shipping: Efficiently delivered through ocean freight, ensuring secure and timely arrivals.
2. Customers designated transportation mode: Flexibility in logistics to accommodate your specific transport preferences.
3. Packing Details: A. Securely enclosed in steel drums (850-930kgs/drum) b. Robust flexible container bags (1 ton/bag) for easy handling and storage.
4. Delivery Details: Expect swift delivery within 15-20 days post-payment or LC at sight, ensuring your operations remain uninterrupted.
Shandong Jinchi Heavy Industry Joint-Stock Co., Ltd. is a distinguished manufacturer dedicated to producing top-tier forged and hot rolled grinding balls, alongside alloy grinding steel rods for over a decade. With an annual production capacity of 100,000 tons, our state-of-the-art facility boasts 10 globally leading forging and automatic rolling production lines, adept at fulfilling intricate customer requirements.
Shandong Jinchi has achieved prestigious international and industry certifications, including TUV ISO900, ISO14001, ISO45001, and dual certification by SGS and BV, affirming our status as a qualified manufacturer. Our cutting-edge laboratory, equipped with advanced testing instruments such as spectrometers, hardness testers, drop testers, and impact testers, ensures rigorous quality control across every stage of production, from raw material intake to final dispatch, guaranteeing product quality and traceability.Our clientele spans across Southeast Asia, Africa, and Latin America, reaching over 40 nations. We enjoy robust collaborations with globally renowned mining corporations, as well as cement, thermal power, and chemical plants. Our commitment to quality and service excellence has earned us widespread acclaim.
