Sonic System acoustic modular panel enclosure contains hydraulic pump noise
Capral Limited
Project Summary
Hyrdraulic and vacuum pump noise reduction
Manufacturing
Capral Limited
Penrith, NSW
About The Client
Capral Limited, one of Australia’s largest suppliers of aluminium products, faced a challenge at their Penrith facility. Hydraulic and vacuum pumps that operated in an open area were generating consistent, high-volume noise that impacted nearby workers and risked breaching environmental noise regulations.
The Challenge
Hydraulic and vacuum systems are known for their constant low-frequency sound output, which easily travels through industrial spaces and beyond property boundaries. At Capral’s site, this uncontained noise posed two key issues:
• Workplace health and safety concerns related to prolonged staff exposure
• Compliance pressure under EPA regulations governing noise emissions
Capral realised they needed more than just a sound barrier; they needed an engineered acoustic solution. Something that would deliver measurable reductions, accommodate ongoing equipment maintenance, and support site safety standards.
Our Approach
AcousTech designed a custom acoustic enclosure using the Sonic System acoustic modular panel solution. After a detailed site inspection and client brief, our engineering team developed CAD concepts to suit the new hydraulic pump infrastructure. The design incorporated airflow, personnel access, roof lift-off sections, and compliance with height clearance codes.
Once drawings were approved, fabrication commenced in the AcousTech workshop. Installation of the enclosure was timed to coincide with a planned three-week plant shutdown for the setup of new machinery, ensuring minimal impact to operations.
Seamless on-site delivery
To ensure the project kicked off smoothly, AcousTech’s project coordinator was on site to supervise the first two days of installation. One of the factory technicians who fabricated the Sonic System acoustic modular panels also attended site to support the site team and provide expert insights during install.
The Delivered Solution
Capral’s new acoustic enclosure was constructed to the following specifications:
• Size: 7680mm (L) x 4900mm (W) x 3000mm (H)
• Panel system: Sonic System acoustic modular panel – V100 used throughout, with V50 panels on the end wall near pipe discharge to meet space restrictions
• Structure: Custom-designed and fabricated steel frame, supplied and installed by AcousTech
Integrated features included:
• Lift-off roof panels (three sections) for overhead maintenance
• Pair of acoustic doors (2400mm H x 2100mm W) for plant access
• Single personnel access door (2100mm H x 900mm W)
• Certified roof access ladder and perimeter handrail system
This project is a realisation of our philosophy: delivering the Science of Silence with engineering precision.
The Benefits for Capral Limited
Capral now benefits from a solution that does more than simply reduce noise. The acoustic enclosure:
• Supports EPA compliance with significantly reduced external noise leakage
• Improves staff wellbeing by lowering ambient noise in nearby working zones
• Minimises equipment fatigue by stabilising sound pressure and airflow
• Allows seamless maintenance with its service-friendly panel and door design
• Reduces operational interruptions with a permanent, low-maintenance enclosure
• Enhances plant appearance with a sleek, integrated design.
By addressing both regulatory and operational concerns, the Sonic System acoustic modular panel installation ensures Capral’s long-term acoustic performance and peace of mind.
Talk to us for solutions to your noise compliance challenge
At AcousTech, we don’t just build enclosures, we design solutions that meet regulatory standards and improve how your site performs. To find out more, call AcousTech on 1300 508 232 or get in touch with us online.
Trusted by engineers, built for performance.
Backed by the Science of Silence.
Hydraulic and vacuum systems are known for their constant low-frequency sound output, which easily travels through industrial spaces and beyond property boundaries. At Capral’s site, this uncontained noise posed two key issues:
• Workplace health and safety concerns related to prolonged staff exposure
• Compliance pressure under EPA regulations governing noise emissions
Capral realised they needed more than just a sound barrier; they needed an engineered acoustic solution. Something that would deliver measurable reductions, accommodate ongoing equipment maintenance, and support site safety standards.
See the Project in Action
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