Paper Mill Cores

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Paper Mill Cores

Biltube's paper mill cores are engineered for the demanding load conditions and continuous handling cycles of paper and board manufacturing operations. Designed for use in heavy-duty winding, rewinding, and reel handling, these cores are manufactured from high-strength coreboard with optimized wall construction to support large reel weights while maintaining dimensional stability throughout production, storage, and transport.

Advanced manufacturing controls and reinforced layer architecture provide high resistance to crushing, ovality, and deformation under sustained mechanical stress. Consistent performance across varying humidity and mill-floor environments helps reduce core failures, minimize reel damage, and maintain operational efficiency supporting uninterrupted production and reliable mill performance at scale.


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Requirements & Specifications

Biltube Paper Cores are high on strength, performance and dimensional stability. These cores are manufactured in state of the art plants to ensure global standards.

  • D3fit
  • D6firm
  • D12 BALANCE

D3fit - Series for 3 inch Dia Core

Applications

Functional performance of 3" winding cores are delivered by Team Biltube which has over 20 years of experience in this field. These precision cores with high strength and dimensional stability for the paper and packaging industries are key components of Biltube's products portfolio.

Salient Features
  • Dimensional stability
  • Customised developed adhesive for hardness of paper core
  • Special bottom paper for chuck holding
  • Straightness throughout the length
  • Reusability
  • Specialised drying technology to prevent shrinkage
  • Pre-cut as per customer requirements
  • Defect free unwinding
Standard Product Range
Parameter Min Max
ID 3"
Thickness 3 mm 20 mm
Length 500 mm 10000 mm
Strength Customised for larger diameter rolls
Moisture 6% 8%
Edges Smooth edges
Colour As required
Application Winding of packaging papers, hygiene papers, laminated papers, coated and impregnated papers, decoration and technical papers, carpet and textile fabrics.

D6firm - Series for 6 inch Dia Core

Applications

Heavy-duty cores for paper and packaging industries; free of bending and ovality. For wider web width, faster press speeds and larger diameter rolls. Biltube takes pride in customising these series of cores for the paper industry.

Salient Features
  • Perfectly straight even at lengths of up to 10 meters
  • Smooth top layer for tight and scratch free winding
  • Controlled moisture for shrink free performance
  • Unique and absolute packing for damage free transportation and storage
  • Bottom layer hardness to resist chuck pressure at high-speed winding
  • Full length unwinding of roll
  • Reusablity
Standard Product Range
Parameter Min Max
ID 6"
Thickness 3 mm 20 mm
Length 500 mm 10000 mm
Strength Customised to withstand higher loads at winding
Moisture 6% 8%
Edges Smooth edges
Colour As required
Application Winding of packaging papers, hygiene papers, laminated papers, coated and impregnated papers, decoration and technical papers and gravure jumbo reels.

D12 BALANCE - Series for 12 inch Dia Core

Applications

Specially engineered high-performance cores designed for heavy-duty winding and high load-bearing capacities. Engineered to deliver exceptional rotational balance and stability for high-speed winding of jumbo reels.

Salient Features
  • Excellent rotational balance at high speeds to prevent vibration
  • High resistance to crushing and ovality under extreme roll weights
  • Perfect straightness across long lengths up to 10 meters
  • Smooth surface for clean, wrinkle-free start-up
  • Customised bonding for maximum stability and torque resistance
  • Reusability under continuous, demanding handling cycles
  • Controlled moisture to ensure shrink-free performance
Standard Product Range
Parameter Min Max
ID 12" -
Thickness 10 mm 22 mm
Length 500 mm 10000 mm
Strength Optimized for extreme load and high-speed balance
Moisture 6% 8%
Edges Smooth edges
Colour As required
Application Winding of packaging papers, hygiene papers, laminated papers, coated and impregnated papers, decoration and technical papers and gravure jumbo reels. Cupstock and FBB board