Roller SkinA crucial component of the ball press machine, it provides the necessary molding pressure during the operation of the ball press. The design of the roller skin and the choice of material have a critical impact on the performance and finished product quality of the ball press.

Here are some detailed specifications about the roller skins:

ApplicationRoller skins are primarily used in ball presses, where they come into contact with the material to apply pressure and shape it. In dry granulation extruders, roller skins are made of high-strength, wear-resistant stainless steel alloy, which has undergone multiple hard-facing treatments.

Ensure smooth ball sockets for easy demolding and extend the extrusion service life.

Material and TreatmentRollers are typically made of high-strength, wear-resistant stainless steel alloy. This material, combined with multi-hardness surface treatment technology, offers excellent wear resistance and durability. The smoothness of the ball sockets is crucial for ensuring the quality of the finished product.

Crucial as it ensures easy demolding and prevents rough edges or defective products from the finished balls.

Adjustment and MaintenanceThe use and maintenance of roller skins also require attention. For instance, if the quenching hardness of the roller skin is not sufficient, it may reduce the molding pressure of the ball press. In this case, the surface quenching heat treatment of the roller skin can be employed.

Replace the roller skins. Additionally, the ball sockets on the two roller skins of the ball press must be centrally aligned to avoid misalignment or quality issues in the finished balls.

The roller skin of the pellet press from Zhengzhou Hongxin Mining Equipment Co., Ltd. is made of 9Cr2Mo material. There are also many GCr15 materials on the market. Below is the difference between the two materials:

GCr15 is a commonly used bearing steel; it contains 1.2% carbon by weight and 1.5% Cr by weight; 9Cr2Mo is a cold working die steel; it contains 0.9% carbon by weight and 2.0% Cr by weight.

Molybdenum content is around 1%; of course, bearing steel can also be used as cold working die steel, suitable for making files, taps, gauge blocks, etc. 9Cr2Mo steel is commonly used to manufacture taps, taps, thread rolling plates, punch dies, and other components.

The alloy element content of 9Cr2Mo steel is twice that of GCr15 bearing steel, and its performance is superior to GCr15 bearing steel; after Cr and Mp elements are solidly dissolved in the matrix, they both increase the electrode potential of the matrix, which in turn raises the material's...

Electrochemical corrosion resistance; that is, it enhances the steel's resistance to acidic and alkaline corrosion. The quenching hardness of GCr15 bearing steel is slightly higher than that of 9Cr2Mo steel, but its hardenability is significantly lower than the latter; its toughness is also lower than the latter. Overall,

GCr15 bearing steel is far inferior to 9Cr2Mo steel.