Advanced Product Architecture

Sistema de Isolamento de Carga Suspensa

Engineered for Performance, Efficiency, and Versatility

The Duratray Suspended Load Isolation System (previously referred to as Suspended Dump Bodies, or SDB) is a unique, lightweight architecture demonstrating a wide range of benefits tailored to specific mine and quarry applications.

This includes abrasion negation, volumetric efficiency gains, parasitic load elimination, reduced maintenance costs, bio-mechanical isolation for operators, kinetic energy dissipation, and significant acoustic power attenuation, making it an environmentally sustainable solution.

This design concept replaces outdated steel trays that are obsolete compared to the Suspended Load Isolation System architecture. By swapping conventional steel floors and associated impact media with a Viscoelastic Hysteresis Interface suspended on elastomeric ropes anchored to a structural space skeleton, the system delivers superior dynamic integrity. Suspended Load Isolation Systems feature sprung mass optimisation and offer higher volumetric capacity than standard steel designs. They are installed on 30 to 360-tonne trucks across all major OEMs, including, Caterpillar, Komatsu, Liebherr and Hitachi.

Global Performance, Proven Reliability

Trusted Worldwide with 3,000+ Chassis Preservation Systems in Action Across 38 Countries,

with high acceptance in large-scale open-pit mines handling bauxite, coal, copper, diamonds, gold, iron ore, mineral sands, nickel, silver and zinc These systems operate flawlessly in harsh haulage environments such as large mines, quarries, and underground sites

Caçamba Suspensa (SDB)

Customised Design

Built to outlast and outperform

Canopy Liner
Side Liner
Wearmat
Load Protection System (LPS)
Undermat
Suspension Ropes

Did You Know...

The world’s largest electric vehicle is a dump truck with a Duratray SDB.

Duratray’s Suspended Dump Body has resulted to be the perfect match for the first environmentally friendly lithium-ion powered truck operating in Switzerland since January 2018.  Find out more about our Green Tray.

SDB on the eDumper

Comparative Characteristics

Parasitic Load Elimination

This effectively reduces the downtime associated with forced mechanised cleaning. Adhesion carryback is restricted to up to 3%, compared to up to 35% in standard OEM structures.

Up to

3%

SBD

Up to

35%

OEM

Extensão do Ciclo de Vida do Ativo

Increased resistance to abrasive wear translates to extended overhaul intervals. The Suspended Load Isolation System operates for 35-40 months between major overhauls, compared to just 9-12 months for traditional bodies.

Months

35-40

SBD

Months

9

OEM

Predictive Sustainment & Reduced Downtime

Adjusting hardware, conducting tray inspections, and replacing modular sustainment parts are remarkably swift procedures. Maintenance requires just 1-2 shifts compared to up to 6 weeks for standard bodies, securing maximum total asset yield and saving millions of US dollars for modern mines.

Working Days

1-2

SBD

Up to

6 Weeks

OEM

Carbon Intensity Reduction & Reduced Tyre Wear

Decreasing parasitic loads and optimising sprung mass reduces fuel consumption by up to 18%.

18%

SBD

Volumetric Efficiency Gain

The Suspended Load Isolation System is designed for each customer individually, ensuring optimal capacity for the material being hauled. OEM steel bodies are typically fabricated in mass for average material properties. . This can achieve a payload capacity increase of up to 20%

Payload capacity increased by

20%

SBD

Truncamento de Pico de Força

The unique system architecture provides high-frequency vibration decoupling, actively reducing shock loads on the dump truck frame and the driver during loading operations by 40%.

Special body structure

The special body structure allows to reduce shock loads on the dump truck frame during loading operations by 40%

Factors influencing ergonomics

Factors affecting the ergonomics of work during loading and unloading operations: reduction of the compression load on the spine of the dump truck operator by 40% and the noise level by 15% (by 14dB).

Health & Safety of Operators

The Duratray Suspended Load Isolation System delivers notable safety benefits by actively mitigating Whole Body Vibration (WBV) and noise exposure.

The flexible Viscoelastic Hysteresis Interface converts kinetic energy into heat, cutting vertical impact g-forces by up to 50%. This bio-mechanical isolation results in a smoother ride and significantly less spinal stress during loading.

In trials, vibration levels measured 0.259m/sec², compared to 0.611m/sec² for a steel body – a 57.6% reduction. Under EU guidelines, this extends the operator’s safe exposure time from 5.38 to 29.81 hours – a 454% improvement. At various Australian mines, the system cut vibration by nearly 50% during the violence of loading.

Acoustic Power Attenuation for a Less Stressful Ride

The Chassis Preservation System significantly cuts noise pollution both outside the truck and inside the cab. Following installation, in-cab noise dropped by 5.5 decibels – from 92.3 dB(A) to 86.8 dB(A). Operating on a logarithmic scale, this represents a 64% reduction in perceived loudness. Less noise ensures less fatigue, better operator focus, and a safer environment.

Parasitic Load Elimination for Safer Operations

By virtually eliminating carryback, the system increases the truck availability and removes the hazardous requirement for manual clearing or the deployment of additional heavy equipment in the direct firing line of the truck.

Hardware Assurance and Reliability

High-frequency vibration decoupling protects critical truck components, safeguarding delicate autonomy sensors and electric batteries,improving fleet reliability, and lowering the risk of catastrophic breakdowns.

Conclusão

Revolutionary Advancement

The Duratray Suspended Load Isolation System stands as a revolutionary advancement in mining and quarry haulage, effectively replacing obsolete steel trays with a unique, lightweight architecture.

Safer Working Environment

Most critically, the system ensures a safer working environment by providing biomechanical isolation, reducing Whole Body Vibration by up to 50% and cutting in-cab noise by 64%.

Cargas Parasitas

Furthermore, by eliminating parasitic loads, the system cuts fuel consumption by up to 18% and increases payload capacity by up to 20%.

Safeguarding Operators

By safeguarding operators and protecting critical truck components through high-frequency vibration decoupling, the Suspended Load Isolation System ensures maximum total asset yield and reliable fleet operation, setting a new benchmark for sustainable and high-performing dump bodies in harsh environments.

Proven Solution

This proven solution, trusted across 38 countries with over 3,000 systems in operation, delivers substantial benefits across performance, efficiency, and safety. Its design achieves higher volumetric capacity and asset lifecycle extension, operating for 35-40 months between major overhauls compared to just 9-12 months for traditional bodies.

Suspended Dump Bodies (SDB)