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Polyurethane (PU)

VRS-POLYDRIVE

Applications: all dry drive roll positions

Technical specifications

  • Hardness: 95–65 ShA
  • Thickness: 10–25 mm,
  • Colour: Dark blue
  • Maximum heat resistance: 90°C

VRS-POLYDRIVE is a polyurethane cover with very good wear resistance for all dry drive roll positions. The key properties of this cover include very high friction and toughness.

Advantages

  • Excellent wear resistance.
  • The material is very durable and resistant to cuts and tears.
  • The cover can be reapplied without removing the bearings.

VRS-POLYDRIVE W

Applications: all wet drive roll positions

Technical specifications

  • Hardness: 20–60 P&J
  • Thickness: 10–25 mm
  • Colour: Dark blue
  • Maximum heat resistance: 90°C

VRS-POLYDRIVE W is a polyurethane cover with very good wear resistance for all wet drive roll positions. A special substrate layer provides protection against corrosion and ensures that the cover adheres to the roll shell. The strong and durable material allows for using softer covers, thereby improving friction properties.

Advantages

  • Excellent wear resistance.
  • Allows for softer covers with higher friction.
  • The material is very tough and resistant to cuts.

VRS-POLYPRESS

Technical specifications

  • Hardness: 5–25 P&J
  • Thickness: 17.5–22.5 mm
  • Colour: Red
  • Maximum heat resistance: 120°C
  • Maximum load: 350 kN/m *
  • Doctoring: Carbon fibre composite blade

* Maximum load depends on the roll diameter, usage conditions and cover hardness.

VRS-POLYPRESS is a polyurethane cover with very good wear resistance for all press applications. VRS-POLYPRESS can be used with smooth, grooved and blind-drilled positions (-B, -G, -BG). The key features of the cover include excellent wear resistance, low internal heat generation (hysteresis) and good maximum heat resistance.

Advantages

  • Excellent wear resistance.
  • Low internal heat generation enables high line loads.
  • Good maximum heat resistance.

VRS POLYPRESS S

Technical specifications

  • Hardness: 5–20 P&J
  • Thickness: 17.5–22.5 mm
  • Colour: Red
  • Maximum heat resistance: 120°C
  • Maximum load: 350 kN/m *
  • Doctoring: Carbon fibre composite blade

* Maximum load depends on the roll diameter, usage conditions and cover hardness.

VRS-POLYPRESS S is a polyurethane cover with very good wear resistance for all suction roll applications. In addition, VRS-POLYPRESS S can be grooved and/or blind drilled, as necessary (-SG, -SB or -SBG). The key features of the cover include very low wear and good maximum heat resistance.

Advantages

  • Excellent wear resistance.
  • The highly durable material prevents the rounding of suction holes, thereby enabling long operating periods.
  • Very good maximum heat resistance.

VRS-POLYTAM

Applications: tambours

Technical specifications

  • Hardness: 20–25 P&J
  • Thickness: 5–12 mm, recommendation: 10 mm
  • Colour: Dark blue
  • Maximum heat resistance: 100°C

VRS-POLYTAM is a polyurethane cover with very good wear resistance for tambours. The key properties of this cover include good toughness and shear strength. Typically for polyurethane, any cuts in the cover will close, which extends the service life of the cover compared to conventional rubber covers. If necessary, the cover can be reapplied without removing the bearings. The material can also be grooved for better air removal.

Advantages

  • Excellent wear resistance.
  • The material is very tough and resistant to cuts.
  • Cuts close themselves.
  • The cover can be reapplied without removing the bearings.
  • Can be grooved.