Grooved Press Roll For Paper Mill
Description:
The groove press is provided with a groove under the nip that communicates with the atmosphere. The flow direction of the water discharged from the paper web is vertical downward, and the resistance and pressure loss of drainage are the smallest. Therefore, the use of groove press with suitable groove specifications can increase the linear pressure of the nip without causing the paper to be crushed, and the dryness of the paper web entering the dryer can also be improved. %, about 60% when vacuum pressed, and about 56-58% when grooved. In addition, groove press can replace vacuum press in many cases, which can simplify the structure and save power consumption. application), the press section of many paper machines at home and abroad are equipped with grooved press rolls.
Specification:
1.Dia: 460-1800mm
2.Face length: 2100-8000mm
3.Material: Alloy cast iron HT200-300
4.Shaft head: 40CrMo,Bulkhead: HT250
5.Rubber coating thickness: 10-12mm,rubber is from Voith or Stowe Woodward.
Advantage:
1.The performance of rubber surface: good ripple property, non-deformation, oligo thermal, good paper release property.
2.With grooves on the surface; The width: 0.5-102mm; The depth:2-3mm; Surface width:2.5-3.5mm; annulus or spiral.
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