The sand coated grinding ball production line has a sand coating

layer. The mold will not have pits in the mold cavity even if it is 

used many times. Even if there are pits, the sand layer will fill the

pits, making the surface of the high-chromium ball produced

smooth and pit-free. The mold has vents, which has a good

venting effect. There will be no bubbles inside the high-chromium

ball, and the performance of the high-chromium ball produced is stable.

The traditional sandless production method is prone to pits inside the 

iron mold. When the molten iron directly contacts the mold, a useless

shell (flash) will appear on the outside. In addition, the mold has no vents, 

which is easy to cause bubbles inside the high-chromium ball, making it

impossible to ensure the consistency of product quality.

Advantages of sand coated grinding ball production line:

1. Good exhaust, no bubbles or high-temperature pores inside the 

high-chromium ball

2. The resin sand used has high strength and the ball has no sand inclusions

3. The professional production line scientifically controls the solidification 

speed of molten iron

4. The surface of the Cast High Chrome Ball is smooth and has no pits

5. The fully automatic production line ensures the fixed molding process

of the product and guarantees the stability of product performance and size

6. The mold pouring cup is increased, which increases the static pressure of

molding and ensures the tightness of the high-chromium ball.

The development of ductile iron casting production technology in my country

has roughly gone through three stages: 1. Magnesium ductile iron period. 

2. Rare earth magnesium ductile iron period. 3. The rapid growth period of

focusing on the quality of ductile iron.

During this period, the production and development of ductile iron castings

has developed from scratch, from small to large, the quality has gradually

improved, the variety has increased, and the output has gradually increased.

The products are widely used in engineering machinery, construction, metallurgy,

mining, energy and other departments.

I believe that through the above introduction you can already see the difference

between the iron mold sand coating production line and the traditional manual

production. Q-grindingmedia can professionally provide iron mold sand coating

production lines with a variety of different models for you to choose from; when

the product is produced and installed, it provides more reasonable and efficient

solutions for different application environments, which can be integrated according

to the special needs of customers to bring customers a better user experience.