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Knife edge rollers for conveyor applications

Knife edge rollers are small rollers which form a continuous gliding edge on conveyor belts. It enables product to glide smoothly between belts. Unsurprisingly they are commonly found on the edge of conveyors, providing a lubrication-free and precise guide system.

igus® has developed a range of knife edge rollers in their iglidur® materials. These rollers offer a tight deflection radius and require a very low amount of drive power. They are easily assembled and are extremely cost effective. If we can't offer you a standard rolled knife edge to meet your requirements we can custom machine one!

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Knife edge roller material options

A180 - all-rounder up to 90°C

A180 material- all-rounder up to 90°C knife edge rollers
  • The FDA-compliant all-rounder
  • Good media-resistance
  • Tight deflection radii
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A350 - media-resistant up to 180°C

iglidur A350: media-resistant up to 180°C knife edge rollers
  • Compliant with EC regulation 10/2011 EC
  • For use with temperatures up to +180 °C
  • FDA compliant
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A250- high speed up to 90°C

A250: high speed up to 90°C knife edge rollers
  • Wear-resistant
  • FDA and EU10/2011-compliant
  • Low required drive power
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P210- all-rounder up to 100°C

P210: all-rounder up to 100° knife edge rollers
  • Specialist for pivoting & rolling applications
  • Belt deflection 100% lubrication-free
  • Good coefficients of friction and wear
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H1: high media resistance

H1: endurance runner with high media resistance knife edge rollers
  • Endurance runner with high media resistance
  • Very low coefficient of friction
  • High resistance to temperature and chemicals
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A181: Universal material for food

universal knife edge rollers
  • Suitable for high speeds
  • Offers both FDA and 10/2011 EC conformity
  • Particularly resistant to shocks and impacts
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W301: Wear resistant all-rounder

wear resistant knife edge rollers
  • Lowest wear rate of all roller materials
  • Long service life
  • High media resistance
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Custom machined options

Custom machine knife edge rollers option
  • Do you need a custom roller?
  • We can design and machine a bespoke component for your application.
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To roller overview page

  • We have guide roller, pulleys, conveyor rollers and many more variants of rollers available in stock and ready to ship.
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What are the benefits of iglidur knife edge rollers?

Robust

Withstand high temperatures, strong vibrations and more

Dirt-resistant

Can even be used in sand, shavings and dust

Corrosion-free

Are corrosion-free and media-resistant for use under water

Hygienic

Do not require lubrication and are optionally available FDA-compliant

Lightweight

Lighter than comparable metal guide rollers

Versatile

Different materials allow for an exact customisation to your application.

White paper

White paper on knife edge rollers in the food industry

Lubrication-free and maintenance-free knife edge rollers in the food industry

  • Technology of knife edge rollers
  • Benefits of our knife edge rollers
  • Cost-benefit analysis
  • Case studies and practical examples
Download white paper

Where are knife edge rollers already being used successfully?

Rollers for belt conveyors made from iglidur materials
"Our systems are used around the world, and they do not fail. iglidur knife edge rollers simply work and have hardly any noticeable wear. They are also easy to assemble, and our customers do not need to spend time maintaining them."

Jürgen Werner

Design Engineer, Krones AG

Rolled knife edge applications

Krones relies on iglidur knife edge rollers

Krones relies on iglidur knife edge rollers

Regarding Variopac Pro, a fully automatic all-rounder packaging system, Krones faced a problem in 2005: the system's performance had to be increased by 20 packages per minute. Hence, there was an urgent need for action during the deflection of the conveyor belts. Originally, metal rollers with needle roller bearings were used here; however, they couldn't fulfil the higher performance requirements and were cost-intensive. When looking for an alternative, Krones Design Engineer Jürgen Werner came upon the products from igus GmbH.

knife edge roller application

The knife edge rollers are ideal for these conveyors as they allow the following:

  • Easy gliding
  • Low coefficient of friction
  • No lubrication.
  • Hard wearing
  • Easy to replace.
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    • food industry

    Use in food processing
    It is not only raw bakery products that present the machine manufacturer in the food sector with considerable challenges. If two conveyor belts are butt-jointed to each other, the radii of the guide rollers result in a gap between the two belts. The risk: sensitive products, such as raw pasta products, simply slide into the gap between the conveyor belts.
     
    To transfer these products safely from belt to belt, the deflection radii of the conveyor belts and the gap between the belts must be kept as small as possible.

    knife edge roller application

    Food and Packaging industry
    Conveyor rollers are essential in the Food and Packaging industry. Having a large range of FDA and EU compliant knife edge rollers allows customers to have peace of mind that there is no contamination. 
    The iglidur® A180, A350 and A250 knife edge rollers are all FDA/ EU 10/2011 compliant. 
    All FDA products have full certification and can be found on the website.

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    Contact details

    rob dumayne
    Rob Dumayne

    drytech® Director

    01604 677240Submit form

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