Central Tablelands Coal Mine – Komatsu 930E-5 Sound Attenuation

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Turn-key M-STEALTH™ sound attenuation package to reduce noise on the Komatsu 930E-5 haul truck

The Komatsu 930E-5 is a large-scale haul truck designed for heavy-duty mining operations. This truck features a powerful engine delivering 2,014 kW / 2,700 HP at 1,800 rpm, with advanced management systems and enhanced efficiency. With an operating weight of approximately 521,631 kg / 1,150,000 lb and a payload capacity of 304,000 kg / 320 short tons, the Komatsu 930E-5 features an advanced operator cab that provides protection from dust and noise while ensuring excellent visibility under the most demanding mining conditions. The Komatsu 930E-5 haul truck represents a dependable option for large-scale mining haulage tasks.

To meet strict noise compliance, a leading mine engaged Minetek to reduce sound emissions across its Komatsu 930E-5 haul truck fleet, without sacrificing payload or performance. Using our M-STEALTH™ Sound Package, we cut noise from 120 dBA to 115 dBA, enabling compliant operation 450m closer to site boundaries. All six Komatsu 930E-5 haul truck units were completed on schedule, with no downtime or safety issues.

L'industrie - Exploitation minière
Mine type – Open-cut
Mineral – Coal
Localisation – Central Tablelands, New South Wales, Australia
Produit/champ d'application – Turn-key M-STEALTH™ Package on the Komatsu 930E-5 haul truck

Brève

The client required a robust sound attenuation solution to meet stringent asset-level noise requirements for their Komatsu 930E-5 haul truck fleet. The goal was to reduce the cumulative sound power generated by surface operations while minimizing emissions, without compromising performance or payload.

Défi

The mine operates under strict environmental regulations and risks exceeding regulated site noise limits without a long-term noise control solution in place for nearby receptors and ongoing monitoring. Therefore, a site-wide compliance strategy was necessary to avoid community impact and operational restrictions.

Champ d'application

Minetek Sound was engaged to attenuate six Komatsu 930E-5 haul trucks with a custom solution that:

- Achieved site-specific sound power targets
- Used minimal componentry to preserve payload efficiency
- Maintained strict OEM backpressure and airflow tolerances

Minetek engineers modified the M-STEALTH™ Sound Package to accommodate new undercarriage variations, demonstrating the flexibility and precision of the design process.

Résultats

- Noise reduction: From 120 dBA to 115 dBA
- Compliance: Machines can now operate 450m closer to site boundaries
- Efficiency: All 6 trucks completed on schedule with no safety issues
- Preservation: Payload retained through lightweight component selection

Minetek delivered a compliant, high-performance attenuation solution tailored to the client's operational needs. The project achieved regulatory compliance without downtime, risk, or payload loss. The M-STEALTH™ Sound Package enabled the fleet to meet regulatory requirements while maintaining productivity and supporting the mine’s social license to operate.

Pré-atténuation

120 dBA

The Komatsu 930E-5 registered a factory sound frequency level of 120 dBA prior to Minetek Sound Attenuation.

Post-atténuation

115 dBA

The sound output of the Komatsu 930E-5 was tested after installing Minetek’s turn-key M-STEALTH™ sound attention solution. This registered a sound frequency level of 115dBA.