Paper Machines

With a variety of paper machines, Valtec aids clients in streamlining their production operations.

Paper Machine Wet Section

HEADBOX

TheHeadbox plays a vital role in determining the quality of the final paper product. Its design and performance can significantly impact paper machine efficiency, productivity, and overall paper quality. The headbox is responsible for distributing the pulp evenly across the wire (or fiber) to create a uniform paper sheet. It ensures a stable distribution of fibers, promoting consistent paper thickness, density, and quality.

HEADBOX TYPES

  • AIR CUSHIONED HEADBOX
  • HYDRAULIC HEADBOX
  • OPEN/CLOSE HEADBOX
  • HYDRAULIC CRESCENT FORMER
  • CYLINDER FORMER
  • VACUUM CYLINDER FORMER

DEWATERING ELEMENTS

Dewatering elements in a paper machine are components that help remove water from the pulp as it passes through the machine. These elements work together is to reduce the water content in the pulp to create a solid paper sheet. Common dewatering elements in a paper machine include Forming boards, Hydrofoils, High Vacuum Boxes, Low Vauuum Boxes and UHLE tubes. Our product range includes silicone nitrate, 99% ceramic and 97% ceramic grads for covers. All boxes are made in SS 304 material.

UHLE TUBES

• New Material (AL203 Zr02 Si3N4.)
• Low friction coefficient
• Stable structure
• High-strength matrix of fiber glass/carbon fiber
• Firmly fixed structure
• Easy to replace
• Low adhesive rate for mixtures
• Movable bar
• Effectively protect felt

HIGH LOW VACUUM COVERS

• Low friction coefficient
• Stable structure
• High-strength matrix of fiber glass/carbon fiber
• Flrmly Fixed structure
• Easy to replace
• Low adhesive rate for mixtures
• Movable bar
• Effectively protect forming wire

FORMING BOARD & HYDROFOILS

• Best choice of dot
• Improved paper quality
• One time made ceramic
• Stable structure
• High strength matrix of fiber glass/carbon fiber
• Firmly fixed structure
• Easy to replace
• Long service life