Significant Breakthrough! Successful Development Of Longest Domestic Centrifugally Cast Duplex Steel Vacuum Roll (L7500)

PART 01: Breaking New Ground - From "Zero" to Industry-Leading Innovation

The development of the integrated centrifugally cast duplex steel vacuum roll by Weizhen has set a new milestone for domestic manufacturing:

1. Record-Breaking Size: The vacuum roll measures an impressive 7,500mm in length with a diameter exceeding 900mm, surpassing previous domestic capabilities.
2. Advanced Casting Process: Utilizing a state-of-the-art integral centrifugal casting technique, the entire roll was poured seamlessly in a single operation. Overcoming challenges like precise temperature control, complex alloy chemistry, and microstructure uniformity was key to this success.
3. Superior Materials: Crafted from high-performance duplex stainless steel known for exceptional corrosion resistance and mechanical strength, ideal for the harsh operating conditions in papermaking.