Specification:

1) No deformation

2) High hardness Good wear resistant

3) Size: Dia 20mm-150mm

4) Breakage<1%

5) Certification: ISO9001, SGS.

Process features of cast iron balls

Chemical Composition Matching:

Rational chemical composition is gradually optimized and formed by our technical staff after continuous tests. It is unique. The best configuration of various alloying elements can combine the ball’s hardness and toughness at their best.

Melting and pouring process:

All cast steel balls are produced by intermediate frequency electric furnace. The purity and stability of materials are effectively ensured after uniform temperature conditioning and twice hot metal purification.

Temperature Control Process:

Temperature control is an important and complex process during cast steel ball production. Different tapping temperature, pouring temperature, molding temperature, mold temperature and heat treatment temperature are sensitively reflected in the quality of products. It is requested to master the proper pouring temperature, mold temperature, so that can make sure the products achieve a good state of body tissue during the transition from liquid to solid states.

Molding Process:

Pouring when the molten iron temperature reaches 1500°C，using the temperature difference between molten iron and the molds. In this way the ball can achieve internal organization of grain refinement and be denser. Meanwhile, the carbide is radically arranged and such carbide is embedded in the matrix again during grinding process, forming hard layer continuously. So that the hardness and toughness is maintained to a reasonable range, greatly improving the toughness and hardness of the grinding balls.

Heat treatment process:

We have two sets of heat treatment production line. One is oil quenching, So that the grinding balls can be burning through and quenching through. And the grinding media has the characters of high hardness, good toughness, low break rate, wear-resistant etc through tempering.

Grinding steel ball application:

1) CEMENTPLANTS,

2) Metal mining in mines

3) Power stations

4) Chemical engineering

Chemical Elements:

Physical Property of Cast Iron Balls

Weight of Cast Iron Balls

The full series of available ball sizes includes 25mm (1 inch), 30mm (1 1/4 inch), 40mm (1 1/2 inch), 50mm (2 inch), 65mm (2 1/2 inch), 80mm (3 1/16 inch), 94mm (3 3/4 inch), 105mm (4 inch), 125mm (5 inch), 133mm (5 1/4 inch), 140mm (5 1/2 inch) and 150mm (6 inch).

Package:

Steel drum (800-900kg per drum) or flexible container bag (1000kg per bag)

Sincerely welcome to our factory for visit!