Forming Section Vacuum Pick Up Suction Couch Roll for Paper Machine

Suction Couch Roll Brief Introduction

The vacuum couch roll on the fourdrinier paper machine is located at the place where the web of the forming fabric is removed, which is the end point of the working stroke section of the forming fabric. At the same time, it is an active roller wrapped by the forming fabric to drive the forming fabric to move.

In the cylinder paper machine, it refers to a pair of extruding and dewatering elements formed by the cylinder mould or the net drum, and the web paper layer is taken away by the wet felt.

Suction Couch Roll Application and Function

Vacuum couch roll, one of the papermaking machines, is located at the end of the wet end.

The couch roll of paper machine is the last dehydration device in the long wire section. After passing through the vacuum suction box, the wet web is further dehydrated on the couch to reach a certain degree of dryness and sufficient wet strength, so that it can be peeled off from the surface of the forming web and transferred to the press section smoothly. The dryness of the web to the couch is generally 12% - 18%, which can be increased to 18% - 25%.

Suction Couch Roll Structure

The vacuum roller is composed of two parts: vacuum chamber and roll shell.

1. Vacuum chamber:Generally, it is made of tin bronze by centrifugal casting. When polyester mesh is used, copper shell coated with glue or stainless steel roller shell is used to prevent corrosion. The roller shell is full of countersunk round holes. The roller shell is connected with the transmission shaft, and the cantilever structure is designed for the need of changing the mesh.

2.Roll shell:Single chamber cast iron structure is commonly used, but double type and three chamber are also available. Different vacuum degree can be used for multi chamber to save dynamic consumption. The upper edge and the inner surface of the roller shell are sealed by air bag and friction strip, and width adjustment device is set.

Suction Couch Roll Parameter

1. The size and technical parameters of each part are determined according to the requirements of users.
2.Special design for special requirements.
3.Trim width is optional from 1092 to 5500.

About us

Huatao Group was founded in 2008. We are a professional and leading supplier of various rollers for paper machine, corrugator, rubber & plastic industry, nonwoven fabric industry over 15 years of experience. 

Paper Industry: forming roller, vacuum couch roller, dandy roller, breast roller, rubber press roller, stone press roller, rubber roller, dryer cylinder, size press roller, calender roller, pope reel roller, spreader roller, embossing roller.

Plastic & Rubber industry: chill roller, MDO preheating roller, MDO nip roller, MDO stretching roller, PRS cooling roller, corona treater roller, corona treatment nip roller, flame treatment roller, CFRP contact roller, CFRP tension roller, CFRP nip roller, winding core, coating drum, cooling drum, spreader roller, anilox roller, calender roller, embossing roller.

Nonwoven fabric industry: cylinder roller, doffer roller, CFRP guide roller, embossing roller, cooling roller, spreader roller.

With a strong commitment to innovation, reliability, and customer satisfaction, Huatao Group has become a trusted provider in the industry and our products have been exported to more than 96 countries and have a good reputation.

Huatao understands that each customer may have different requirements, which cannot meet from one factory, but we can meet, we are also familar with domestic factory advantages with matching superior quality and help customer not walk bend road. 

We pursue each customer is buying and using HUATAO products with a rest assured heart and service is never end.