Company Information

1. Professional Grinding balls Manufactory founded in 1998;

2. Advanced production equipment;

3. Exported more than 30 countries;

4. Experienced development personnel,professional designers,salesman and skilled workers

5. Capacity:10000mt/month.

Our company has obtained ISO 9001 International Quality System Authentication, ISO14001 Environmental System Management Authentication and ISO18001 occupational health and safety certification, safety standardization identification, clean production enterprise certification.
Our company has won the "Shandong Province Famous Brand", "Shandong Famous Trademark", "Leading Forged Steel Ball Manufacturer in China ", "High-tech Enterprise "and "Contract Abiding and Promise Keeping Enterprise", etc.

Chemical composition:

Material	C	Mn	Si	Cr	S	P
50MN	0.48-0.56	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
60MN	0.57-0.65	0.70-1.0	0.17-0.37	0.25 max	0.035max	0.035max
65MN	0.60-0.70	0.90-1.20	0.17-0.37	0.25 max	0.035max	0.035max
75Mn	0.72-0.92	0.17-0.37	0.7-1.0	0.4-0.6	0.035max	0.035max
75MnCr	0.70-0.85	0.7-0.8	0.17-0.37	0.2-0.7	0.03 max	0.03 max
75SiMn	0.70-0.90	0.7-1.2	0.4-0.8	0.25 max	0.03 max	0.03 max

Specifications:

Impact Test AK.J/cm2	Endurance Test Times (5m)	Dia 25mm-60mm		Dia 70mm-100mm
		Surface	Core	Surface	Core
50MN	≥12	≥10000	≥56	≥35	≥56	≥28
60MN	≥13	≥10000	≥58	≥38	≥58	≥29
65MN	≥15	≥12000	≥60	≥42	≥60	≥30
75MnCr	≥17	≥12000	≥60	≥52	≥60	≥50
75 SiMn	≥16	≥12000	≥60	≥50	≥60	≥48

Raw Material:

Strict quality control of steel material from BIG STEEL FACTORY GROUP.You know the good grinding balls quality depends on the good raw material.

Prodcution Line:

1.Traditional Hammer Forging: Raw material-Cutting-Heating-Forging-Quenching-Tempering-Testing-Packing

2. Hot Rolling

Testing:

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

Packing:

Container bags(Net weight:1000KGS) or Steel drums(850-900KGS) or in clients' requirements

Our advantage:

1. All of the grinding material can do the well-know and most professional in grinding media industry test certificate: SGS

2. All products are our own production, no other commissons expense. We guarantee to provide the best competitive price

3. Delivery on time, due to our production capacity: 100,000 tons/year
Cooperative Partner and Production Line:
the self-developed automatic steel grinding ball production line is our qualified product, and it has won Chinese invention patent. It uses electric furnace instead of conventional coal combustion method, and the rotary cutting technique replaces traditional air hammer, thereby improving production efficiency by 30 times or even higher.
We operate our 80%products into the foreign market, and keep close and cooperation with many companies.