CK roller maintenance, repair, production

Introduction to CK roller life cycle service products
——Intelligent composite repair technology innovation, reshaping the benchmark for vertical mill operation and maintenance efficiency

I. Product positioning
Vertical mill roller series full-cycle service expert
CNBM Qinhong provides an integrated solution of gradient composite repair + intelligent remanufacturing + preventive maintenance for the core pain points of CK series vertical mill roller wear, fracture, and seal failure. Based on carbon nano polymer dynamic filling technology and laser cladding strengthening process, the service life of the roller body after repair is extended by 3-5 times, and the comprehensive operation and maintenance cost is reduced by 50%. It is suitable for the full range of vertical mills from CK450 to CK650, and overcomes the industry pain points such as thermal deformation and long return cycle of traditional surfacing repair

II. Core technology analysis
1. Intelligent remanufacturing process

3D laser scanning modeling: reverse engineering accuracy ±0.3mm, suitable for non-standard worn roller body6
Five-stage gradient heat treatment: intelligent temperature control (including -80℃ deep cold treatment), hardness uniformity error <1.5HRC9
Dynamic balance calibration: laser positioning assembly technology, eccentricity <0.1mm/m, vibration value stability ≤5mm/s6
2. Preventive maintenance system

Lubrication intelligent monitoring: real-time monitoring of oil return temperature (fluctuation value <3°C), vacuum negative pressure (-0.45~-0.25bar)5
Wear life prediction: based on vibration spectrum analysis (sampling rate 100Hz), predict the risk of liner cracks, error <3 days
III. Service scenarios and solutions
1. Damage repair service

Roller wear: fill the groove with unilateral wear >8mm (100% contact surface fit after repair), compressive recovery rate 98%6
Liner crack: handle stress cracks with depth ≤50mm, combined with polymer material filling + cladding layer strengthening, fracture rate <0.3%8
Seal failure: replace ceramic-based sealing ring (temperature resistance >220°C), block 80% of dust from invading the bearing cavity5
2. Customized manufacturing service

Gradient composite roller sleeve: surface tungsten carbide cladding (Hv2200) + middle layer high chromium alloy (Cr26) + bainitic steel matrix (impact toughness ≥ 25J/cm²) 9
Intelligent monitoring system: integrated stress sensor (data sampling rate 100Hz), real-time transmission of wear and temperature to the central control system 7
3. Preventive maintenance service

Lubrication optimization package: 8000h oil replacement cycle, real-time monitoring of filter element dirtiness, annual maintenance cost reduced by 30% 5
Seal relubrication: quarterly addition of high-temperature grease (temperature resistance > 200℃), supporting intelligent grease injection equipment
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V. Service guarantee system
V. Service guarantee system V. Service guarantee system V. Service guarantee system V. Service guarantee system
V. Service guarantee system




V. Service guarantee system
1. Accurate delivery

Laser scanning modeling of old parts (adaptation error < 0.3mm) 6
2. Quality commitment

Passed ISO 9001/GB/T 33947 certification, warranty period 18 months5
Each batch comes with metallographic test report + 3D stress cloud map