The cylinder mould consists of a perforated metal shell (the cylinder) wrapped with a fine wire mesh or synthetic cover. As the cylinder rotates through the vat of diluted stock, fibers are deposited on the wire surface while water drains through the openings into the interior. The wire cover therefore performs three essential roles: it forms the sheet, controls drainage, and supports the wet web until it is transferred to the press or couch section.

 

Key Functions and Performance Requirements

1. Uniform sheet formation: Consistent mesh geometry prevents streaks, thick spots, and fiber flocculation.
2. Controlled drainage: Mesh count and open area determine water removal rate and retention of fine particles.
3. Dimensional stability: Tight, even tension across the cylinder prevents distortion during rotation.
4. Wear and corrosion resistance: Continuous contact with abrasive fillers and varying pH stock demands durable materials.

 

The cylinder mould is a critical wear part that shapes sheet quality and influences machine productivity. Selecting the right material, weave, and installation practice ensures stable operation and lower total cost of ownership. For spare parts inquiries, specifications, or replacement planning, please contact the leizhan team.
Email: whiteboardpapermachine@gmail.com