Product Description
Our Vacuum Couch Roll is installed at the end of the forming wire to further dewater the wet paper sheet and smoothly transfer it to the press section. This equipment uses vacuum adsorption to help improve paper dryness, enhance paper structure uniformity, and ensure smooth separation of the paper web from the forming wire.
Our Vacuum Couch Roll typically consists of a roll body, roll surface, vacuum chamber, end caps, and bearing housings.
Roll body material: Stainless steel, carbon steel, or copper alloy, selected according to different paper types and process requirements.
Roll surface design: Employs a precision-drilled or slotted structure with optimized hole diameter and distribution for best dewatering performance.
Vacuum system: Connected to a vacuum pump and regulating valve, the vacuum level can be precisely controlled according to production needs.
Surface treatment: Optional chrome plating, rubber coating, or ceramic spraying to improve wear resistance and service life.
Technical Parameters
| Item | Specification Range |
|---|---|
| Roll Diameter | 400 – 1500 mm |
| Face Length | 1000 – 10000 mm |
| Vacuum Range | -20 to -70 kPa |
| Material | Stainless Steel / Carbon Steel / Bronze |
| Surface Treatment | Hard Chrome / Rubber Coating / Ceramic Coating |
FAQ
Q1: What is the function of a vacuum couch roll in the paper machine?
A1: It removes excess water from the wet web and transfers the paper sheet from the wire section to the press section using vacuum suction.
Q2: Do you offer customization?
A2: Yes, we offer fully customized vacuum couch rolls according to the customer’s machine width, speed, and production requirements.