Belt construction

Aramid (DPP) Conveyor Belting

Lightweight, high-strength aramid reinforcement for long-distance, high-tension and weight-sensitive conveyor systems.

Product overview

Built around the duty.

Illustration of a lightweight aramid conveyor belt construction
Aramid DPP product illustration from supplied Double Arrow literature. Final covers, transverse reinforcement and edge construction are project specific.

Aramid DPP belting uses a high-strength straight-warp aramid tensile member to carry high longitudinal load with substantially less belt mass than a comparable steel-cord construction. Low elongation, fatigue resistance and transverse protection make it a strong option where conveyor power, take-up demand, impact exposure or structural load are important design constraints.

Published strength rangeDPP800–DPP4000
Elongation at 10% load0.5% (published)
Published sample belt mass15.6–25.6 kg/m²
Cover pathwayStandard or LRR bottom cover

Construction & selection

What defines this product.

  • High tensile strength-to-weight ratio
  • Published 0.5% elongation at 10% load across the listed DPP range
  • Aramid toughness supports cut, chip and puncture resistance
  • Fatigue-resistant, flexible single-ply carcass
  • Good chemical and corrosion resistance of the aramid reinforcement

Typical applications

Where it fits.

  • 01Long overland and high-lift conveyors
  • 02Weight- and power-sensitive systems
  • 03High-impact or puncture-exposed duties
  • 04Aramid pipe-conveyor applications

Available configurations

Configure the construction.

  • 01

    DPP800 through DPP4000 published constructions

  • 02

    Standard or low-rolling-resistance pulley-side cover

  • 03

    Application-selected abrasion, cut, heat or fire-resistant covers

  • 04

    Transverse reinforcement and pipe-belt variants where required

Selection inputs

What we need to confirm.

  • 01

    Operating and peak tension, lift and centre distance

  • 02

    Target belt mass and conveyor power model

  • 03

    Pulley diameters, transitions and take-up allowance

  • 04

    Impact, puncture and rip exposure

  • 05

    Splice method, geometry and installer capability

How the construction works

High tensile capacity with less moving mass.

The aramid tensile member changes more than the belt weight. It affects the conveyor power model, take-up travel, pulley selection, transition geometry and splice design, so the complete system must be checked as one package.

01

Lightweight tensile member

Aramid fibre concentrates longitudinal strength in a single, flexible carcass with low published elongation.

02

Structural protection

Transverse reinforcement and cover thickness are selected to protect the high-value carcass from impact, puncture and rip damage.

03

Energy package

Lower belt mass can reduce the moving load; an LRR pulley-side compound can be added where the conveyor model supports it.

Published product range

DPP construction reference.

These are the sample constructions published in the supplied Aramid Conveyor Belt sheet. Cover thickness and belt mass change with the final duty.

DesignationTensile strengthElongation at 10% loadSample coversSample mass
DPP800800 N/mm0.5%6 + 3 mm15.6 kg/m²
DPP10001,000 N/mm0.5%6 + 3 mm15.8 kg/m²
DPP12501,250 N/mm0.5%6 + 3 mm16.1 kg/m²
DPP16001,600 N/mm0.5%6 + 4 mm17.4 kg/m²
DPP18001,800 N/mm0.5%6 + 4 mm17.7 kg/m²
DPP20002,000 N/mm0.5%8 + 4 mm20.3 kg/m²
DPP22502,250 N/mm0.5%8 + 4 mm20.8 kg/m²
DPP25002,500 N/mm0.5%8 + 5 mm22.3 kg/m²
DPP31503,150 N/mm0.5%8 + 5 mm23.0 kg/m²
DPP35003,500 N/mm0.5%8 + 6 mm24.9 kg/m²
DPP40004,000 N/mm0.5%8 + 6 mm25.6 kg/m²

Published reference values are not a substitute for an approved belt data sheet. Width, edge construction, cover grade, splice design and minimum pulley diameters must be confirmed for each order.

Published comparison

A lighter route to high strength.

The supplied product sheet compares aramid with a steel-cord belt of the same tensile strength and also describes the additional effect of an LRR bottom cover.

30%

Lower belt mass

Published comparison against a steel-cord belt of the same tensile strength.

10%

Lower energy consumption

Published comparison attributed to the lower moving belt mass.

Up to 30%

With LRR rubber

Published potential when an LRR pulley-side cover is combined with the aramid carcass.

These are brochure comparison claims, not guaranteed project outcomes. Conveyor geometry, loading, speed, idlers, temperature, cover thickness and operating conditions must be modelled before any energy-saving commitment is made.

Specification note

Aramid construction is engineered against the complete conveyor duty. Confirm pulley diameters, transition geometry, take-up, splice design, cover system and local splicing capability before selection.

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