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Fertiliser Plant Wheel Wash System Installed for Ravensdown – Dunedin, NZ

by | Aug 26, 2025 | Projects

Rocktec designed, built, installed, and commissioned a fully automated fertiliser plant wheel wash system for Ravensdown at their Dunedin fertiliser manufacturing plant in New Zealand. With high volumes of heavy vehicles transporting bulk fertiliser and lime products daily, this specialized wheel wash system was developed to ensure environmental compliance, minimise chemical and debris contamination on public roads, and maintain operational efficiency at one of New Zealand’s key agricultural supply facilities.

Project Overview: Fertiliser Plant Wheel Wash System for Chemical Processing Facility

  • Client: Ravensdown Limited
  • Location: Dunedin, New Zealand
  • Industry: Fertiliser Manufacturing / Environmental Compliance
  • Scope: Design and build of a fully automated fertiliser plant wheel wash system for heavy-duty transport vehicles

The Challenge: Fertiliser Plant Requiring Specialized Vehicle Decontamination

Ravensdown’s Dunedin plant is one of New Zealand’s oldest and most established fertiliser manufacturing facilities, serving the agricultural sector across Otago and Southland. With constant movement of trucks carrying bulk fertiliser, lime products, and raw materials, the facility required a specialized fertiliser plant wheel wash system that could remove chemical residues, dust, and debris quickly and consistently—without disrupting the critical supply chain to regional farms.

The facility’s location in an urban industrial area meant strict environmental compliance was essential to prevent contamination of public roadways and meet regional council discharge consent conditions.

Rocktec’s Solution: Advanced Fertiliser Plant Wheel Wash System

Rocktec delivered a robust and intelligent fertiliser plant wheel wash system designed to handle continuous use in a demanding chemical processing environment:

  • 4-metre wash length to accommodate long wheelbase trucks and tanker trailers
  • 84 high-pressure jets strategically positioned to cover tyres and underbodies from all angles
  • Sensor-triggered automation allowing vehicles to drive through without stopping or manual operation
  • Chemical-resistant construction with galvanised steel frame and corrosion-resistant components
  • Side spray bars with adjustable angles for comprehensive edge coverage
  • Overspray containment screens installed to minimise water usage and prevent site contamination
  • Compatible with all transport vehicle types, including B-trains, rigid trucks, and specialist fertiliser haulers

This fully enclosed fertiliser plant wheel wash system provides consistent cleaning results while maintaining safe road conditions and environmental compliance beyond the plant gates.

Installation and Performance

  • Design: Rocktec engineered the system to integrate seamlessly with existing traffic flow patterns at the Dunedin facility, ensuring minimal disruption to fertiliser distribution operations.
  • Fabrication: All components were precision-built off-site using chemical-resistant materials and quality-controlled assembly processes suitable for the industrial environment.
  • Installation: The fertiliser plant wheel wash system was installed during planned maintenance windows with minimal impact on Ravensdown’s critical agricultural supply operations.
  • Commissioning: Comprehensive testing confirmed sensor accuracy, spray pattern effectiveness, and complete wash coverage across all vehicle configurations used at the facility.

Results and Benefits

  • Environmental Compliance: Significantly reduces chemical and particulate track-out onto public roads, supporting Ravensdown’s resource consent obligations and community relations.
  • Fully Automated Operation: Sensor-triggered activation eliminates driver intervention, maintaining smooth traffic flow and reducing delays in time-sensitive agricultural deliveries.
  • Thorough Decontamination: 84 precision-aligned jets provide comprehensive cleaning of wheels and underbodies, removing fertiliser residues and preventing cross-contamination between product loads.
  • Operational Efficiency: The drive-through design maintains steady vehicle throughput, ensuring fertiliser supply chains remain uninterrupted during peak seasonal demand periods.
  • Enhanced Safety: Automated operation reduces manual handling requirements and exposure risks for drivers and site personnel.

Conclusion: Fertiliser Plant Wheel Wash Systems Supporting Agricultural Supply Chain Integrity

This automated fertiliser plant wheel wash system demonstrates Rocktec’s expertise in delivering specialized environmental solutions for New Zealand’s critical agricultural infrastructure. At Ravensdown Dunedin, the wheel wash system ensures product quality, environmental responsibility, and regulatory compliance while supporting the uninterrupted flow of essential fertiliser supplies to regional farming communities.

The fertiliser plant wheel wash system installation reinforces Ravensdown’s commitment to responsible manufacturing practices and maintains their position as a trusted partner in New Zealand’s agricultural sector.

Want to Learn More?

To explore more about fertiliser industry environmental solutions and agricultural supply chain compliance, visit the Fertiliser Association of New Zealand website.

If you’re planning to install a wheel and underbody wash system for your industrial facility, contact Rocktec today to discuss your site’s specific environmental compliance needs.

Got Questions?

Get in touch with the Rocktec team for expert advice on engineering solutions & materials processing. Whether you need support, custom solutions, or have a general enquiry, we’re here to help — contact us today.

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48 Mangawhero Road, Matamata 3400, New Zealand

Private Bag 4072, Matamata, 3440, New Zealand