The rotary kiln carrying roller and tyre are operated under high temperature and heavy load for a long time, and the working environment is relatively bad, generally suffering pitting corrosion and and fatigue damage, which are very difficult to repair. 

(1) Pitting and spalling. The rotary kiln tyre is often supported by the carrying roller. The contact between the roller and the tyre is a large stress. This stress is a local high stress. Under the long-term action of the pulsating stress, the carrying roller will produce fatigue pitting. After the pitting is enlarged, a large area of spalling will occur.

(2) Spalling and crushing. The material of the kiln tyre is generally carbon cast steel or 35SiMn, 42CrMnSi and other so on. If the axial hardness of the kiln tyre is uneven and the structure is inconsistent due to the defects of casting, under high load, the crushing, curling and compression will occur on the places where the kiln tyre material is loose structure and low hardness. In addition, due to casting defects, subcutaneous voids, large areas of looseness, sand holes, etc., can also cause spalling and indentation.

(3)Fracture. The radial or axial fracture of the kiln tyre, the entire radial direction is completely broken, the inner arc changes, the site is difficult to repair; the axial crack, not completely cracked, can be repaired.

As a large steel casting base in the north of Henan Province, CHAENG has a huge output of steel castings every year, especially in the casting of grinding equipment accessories such as kiln carrying rollers, which has obvious advantages:

1. The supporting load is large and the continuous running is good.

The rotary kiln carrying roller produced by CHAEGN are generally made of high quality steel materials ZG55, ZG42CrMo and so on, to ensure the quality, and strengthen the load bearing capacity and continuous operation of the carrying roller.

2. The simple structure, convenient for adjustment and maintenance

The carrying roller adopts a rolling bearing roller set, which has the characteristics of simple structure and convenient maintenance.

3.using normalizing and tempering process, to ensure high hardness.

CHAENG treats kiln carrying roller by normalizing and tempering process. The surface hardness of the outer circumference of the roller is higher than 200HB, which greatly guarantees the quality of the rotary kiln carrying roller device.

CHAENG can produce large-scale steel castings of 1-150t, such as hollow shafts, large girth gears and sliding tracks of ball mills in building materials machinery; grinding table and grinding rollers of vertical roller mill; carrying roller and tyre of rotary kiln; Machine frame for metallurgy and ceramic industries; shipbuilding parts, and other products to meet the needs of different industries.