Cement rotary kiln support rollers and tyres operate under long-term high temperature, heavy load, and harsh working environment, so the pitting corrosion peeling or serious fatigue damage happens often.

(1) Pitting flaking. Tyre is often supported by the roller, the contact between support roller and tyre produces a large stress, and this stress is a local high stress. If the kiln tyre is in the long-term effect of the pulsating stress, it will produce fatigue pitting, and if the pitting expands, it will have a large area of flaking.

(2) Peeling and collapses. The material of the tyre is generally made of carbon steel or 35SiMn, 42CrMnSi and other materials. Casting defects will cause that the axial hardness of the tyre is not uniform and the organization is inconsistent. Under the high load, the parts with loose structure and lower hardness are easy to be crushed, curled and depressed. In addition, the subcutaneous cavities, large loose and blowhole resulted from causing defects will also cause peeling and indentation.

(3) Fracture: Radial or axial fracture of the tyre. The completely radial fracture and the inner arc changes are difficult to repair on site; the axial cracks, if don’t completely split, can be repaired.

CHAENG, as a large casting base in northern Henan, produces a huge annual output of steel castings, and has with obvious advantages especially in the support roller and other grinding equipment parts:

Advantages of CHAENG kiln support roller:

1. Use high-quality steel material, can carry a large load

CHAENG kiln support roller adopts ZG55, ZG42CrMo steel materials with high tensile strength and good impact toughness, which greatly ensures the quality of support roller. So that CHAENG kiln support roller has the advantages of large load carrying capacity and good continuous operation performance.

2. Simple process, low maintenance cost

CHAENG support roller is rolling bearing-roller set. The rolling bearing manufacturing precision is high, compared with sliding bearing, it can make rotary kiln rotating more stably, and reduce maintenance cost.

Advantages of CHAENG kiln tyre:

1. High strength, good durability

CHAENG kiln tyre uses ZG45 and ZG42CrMO material, which can guarantee the strength and toughness of kiln tyre, so as to play a better supporting role.

2. Use advanced dual-medium quenching process

CHAENG adopts advanced two-medium quenching process to process uniformly every part of kiln tyre, so that CHANEG kiln tyre has high hardness and high toughness and good wear resistance, can adapt to a variety of harsh working environment.