UsFlex® Family

Premium, longest-lasting fabric belts

Innovative straight warp weave — stronger and tougher than standard plied belts.

Fenner Dunlop UsFlex®

Carcass Construction

UsFlex® is a revolutionary concept in straight-warp conveyor belts.

UsFlex is different from the competition. We use heavyweight straight yarns in parallel planes – lengthwise and crosswise – locked together with a unique binder to concentrate belt strength.

Our parallel planes reinforce like the multiple plies of traditional belts but without the crimping that weakens and stretches the yarn. Our binder is a built-in breaker to resist impacts and punctures.

Fenner Dunlop UsFlex carcass diagram

Best in class construction

Not only were we the first to market with a straight warp carcass design, we are also 2x more rip resistant vs. competitors.

Heavy weight straight weave with binding cords that are the most durable for the toughest conveyor applications.

3x

UsFlex® Straight-warp construction impact resistance is up to three times greater

2x

Rip resistance up to two times greater according to laboratory testing

Markets and Applications

UsFlex® covers almost every application, with specific Flex versions for Mining, Grain Handling, and Power Generation

  • Steel
  • Aggregates
  • Coal Mining
  • Power Generation
  • Hardrock
    and Precious Metals
  • Other Mining
  • Recycling
  • Wood, paper and pulp
  • Chemicals and fertilizers
  • Ports and transloading

Available UsFlex® Variations

For applications that require lower stretch, UsFlex W is available.

  • UsFlex®

    Standard product with no special cover compounds

  • KordFlex

    Standard product with no special cover compounds

  • LongFlex W

    Standard product with no special cover compounds

  • UsFlex W™

    Standard product with no special cover compounds

  • MineFlex®

    Standard product with no special cover compounds

  • GrainFlex

    Standard product with no special cover compounds

  • Double UsFlex

    Standard product with no special cover compounds

  • LongFlex

    Standard product with no special cover compounds

  • PowerFlex

    Standard product with no special cover compounds

Fenner Dunlop KordFlex and DynaFlex Conveyor Belts (UsFlex Family; X Series Group)

Fabric Weaved in USA.
Belt Manufactured in USA & Canada.

Breaker fabrics

DynaFlex™

DynaFlex™ breaker fabrics are engineered with the properties and characteristics of our premium UsFlex® carcass construction.

DynaFlex™ is used primarily as a breaker fabric for our DynaFlight™ steel cord belting and in some cases for select fabric carcasses.

For protection beyond detection use the new standard in breaker fabrics: DynaFlex™.

Aramid Reinforced

KordFlex™

Premium aramid reinforced straight warp carcass

Like steel, Aramid fibers offer high tenacity, low elongation, and good thermal stability. But unlike steel, Aramid retains low density, chemical and fatigue resistance, and the positive handling qualities of synthetic fiber.

We use heavyweight straight yarns in parallel planes-lengthwise and crosswise. The carcass binder is a built-in breaker that resists impact & puncture.

  • Get longer belt life in tough service
  • Greater cost savings per ton conveyed
  • Greater rip, tear and impact resistance
  • High strength
  • Excellent load support, troughability, and tracking
  • Increased insurance against belt damage
  • Impact resistance up to three times greater than traditional plied belt construction
  • Longitudinal rip resistance more than three times equivalent-rated multi-ply belts

The Original: Often Tried but never duplicated! Highest performance consistency in the world is not an accident! It is best in class!

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Fenner Dunlop Conveyor Belting