The press section is the next part of the paper machine after the forming section. The most important functions of pressing are to increase sheet solid consistency in order to ensure adequate drying capacity, to consolidate the sheet, and enable web runnability in the early dryer sections. Increased sheet consistency increases wet strength and improves sheet consolidation and fiber-to-fiber bonding which increases sheet strength. This typically improves runnability and reduces press to dryer draw. Pressing can also have a significant impact on quality parameters such as smoothness, ink absorption, bulk, and moisture profile.
During pressing, the sheet is compressed between one or two fabrics and either two rolls, or a roll and a mated extended "shoe" in the press nip to squeeze water from inside the web and out of the felt fibers.
The rubber hardness of rubber rollers when producing general paper is usually 70 to 90 Shore hardness. The hardness of the rubber rollers used in each press of the press section increases with the increase of the pressure of each press line.
Sun Hong has never stopped the development of new press rolls. The purpose of developing new press rolls is to improve the dewatering efficiency, improve the quality of the paper sheet, and reduce the adverse effects of the press on the paper industry.
1.Hardness: from 20-100 degrees
2.Excellent resistance against oil,acid-base,abrasion,corrosion and high temperature3.Smooth surface and good elasticity
4.High precision,no swelling and no cracking
5.Work environment temperature:-40 °C-300 °C
Categories of Rubber Roller:
2.Nitrile rubber roller
3.Neoprene rubber roller
5.Silica gel roller
6.Iron roller and Stainless steel roller
|Product Name||Rubber Coating Press Roll,Polyurethane coating roll, Polyurethane paper drum roll|
|Paper Machine ||Paper Machine Forming Part ,Press Section ,drying part,calendar ,reeling.|
|Features||Special coated material with good Rubber toughness and uniform ;|
Tapping area up to 50% ,specially designed buffer layer helps disperse stress and mechanical shock resistance effectively during operating; Excellent dehydration ,low nip pressure which prevents dandy marks and crushing of paper sheet ;
High wear resistance ,chemical resistance .
For getting the best ending paper property ,we have been paying more attention to the details and trying utmost to present the best qualities for you.
|Delivery Time||50 Days |
Sea wothy Package
1. Bubble Film and waste thick fabric wrapping while protecting inside fabric.
2. Wrapped special fabric package outside
3. Composite wooden box
How to make an inquiry of paper machine roll?
1. Paper machine velocity
2. Using position
3. Roller surface length
4 .Center distance
5. Shaft size
SUN HONG EXHIBITION
ALWAYS AT YOUR SERVICE
SUN HONG INTERNATIONAL GROUP INC
Factory: 5th Building No 241 Huai Hai West Road China