Restoration process

Grinding roller assembly repair and processing service - China National Building Materials Qinhong (Hubei) New Materials Co., Ltd.
I. Service background
Grinding roller assembly is the core component of industrial equipment such as vertical mill and roller press, and has been subjected to high-load and high-wear operating environment for a long time. Frequent wear will lead to reduced equipment efficiency, increased energy consumption, and even affect production safety. China National Building Materials Qinhong (Hubei) New Materials Co., Ltd. relies on advanced technology and rich experience to provide professional grinding roller assembly repair and processing services to help customers extend the service life of equipment, reduce operation and maintenance costs, and ensure production continuity.

II. Repair and processing core technology
Precise detection and evaluation

Use three-dimensional scanning, ultrasonic flaw detection and other technologies to accurately detect the wear, cracks and internal defects of the grinding roller.

Develop personalized repair plans to ensure that the dimensional accuracy and performance meet the standards after repair.

Efficient surfacing process

Use imported wear-resistant welding materials (such as high chromium alloy, tungsten carbide composite welding wire), combined with automated surfacing equipment, to repair the worn surface.

Multi-layer and multi-pass surfacing process improves the density of the wear-resistant layer and the impact resistance by more than 30%.

Precision machining

The repaired rollers are turned and ground by CNC machine tools to restore the original size and surface finish (Ra≤0.8μm).

Strictly control the tolerance range (±0.05mm) to ensure perfect fit with the equipment.

Heat treatment strengthening

Use low-temperature tempering, stress relief and other processes to optimize the internal structure of the material and avoid the risk of secondary cracking.

The surface hardness can reach HRC60-65, and the wear resistance is increased by 2-3 times.


Three, service advantages
Cost saving: The repair cost is only 40%-60% of the price of the new roller, which greatly reduces the cost of spare parts procurement.

Fast delivery: Standardized repair process, 7-15 days to complete the repair delivery, reduce downtime losses.

Quality assurance: Strictly follow the ISO 9001 quality management system and provide 6-12 months warranty service.

Environmental protection and energy saving: Reduce resource waste and promote green recycling of industrial equipment.


IV. Applicable equipment and industries
Equipment types: vertical mill roller assembly, roller press roller sleeve, slag roller, coal roller, etc.

Application areas: grinding systems in cement, thermal power, metallurgy, mining, chemical industry, etc.