Rocktec designed, built, and installed two extra heavy-duty vibrating screens for New Zealand Steel Ltd’s Taharoa Mine Site. These units were engineered to handle the harsh conditions of iron sand processing, improving throughput and protecting downstream equipment.
Project Overview: Heavy-Duty Vibrating Screens for Iron Sand Processing
- Client: New Zealand Steel Ltd
- Location: Taharoa Mine Site, New Zealand
- Industry: Mining / Iron Sand Processing
- Scope: Design, manufacture, and install a pair of ROM skid vibrating screens with wash and boil box systems
The Challenge: Reliable Screening in a Marine Environment
New Zealand Steel required a vibrating screen system that could efficiently remove forestry debris and oversize particles from raw iron sand. Additionally, the system needed to endure abrasive materials and coastal weather conditions while fitting within an existing processing layout.
Rocktec’s Solution: Built-for-Purpose Vibrating Screens
To meet these demands, Rocktec delivered a complete system featuring:
- 14’ x 6’ single deck extra heavy-duty vibrating screen for robust material handling
- Direct drive 6-pole, 15kW motor ensuring consistent performance
- Heavy-duty exciter and bearing assembly designed for minimal downtime
- Boil box feed system assisting with slurification of iron sand before processing
- Adjustable water wash system for better particle cleaning and separation
- Marine-grade protective paint applied to withstand coastal exposure
This combination allows the screens to operate under continuous load with reduced maintenance needs, ensuring a reliable feed into the main processing facility.
Installation and System Integration
- Engineering: Rocktec custom-designed each vibrating screen to match the site’s ROM skid infrastructure and processing flow.
- Fabrication: Components were manufactured offsite using high-grade materials and protective coatings.
- Installation: Rocktec installed both screens onsite, tying into existing pumps and conveyor systems efficiently.
- Commissioning: Testing confirmed that flow rates, screening efficiency, and durability targets were fully achieved.
Results and Benefits
- Improved Material Flow: Forestry debris and oversize removal enhance downstream plant performance.
- Reduced Maintenance: Heavy-duty components and direct drive design lower operational costs.
- Water Efficiency: Adjustable wash systems improve cleanliness without excessive water use.
- Extended Service Life: Marine-grade paint systems protect critical components from corrosion.
Conclusion: Heavy-Duty Screening for Long-Term Performance
This vibrating screen project demonstrates Rocktec’s expertise in designing high-durability screening solutions for extreme environments. New Zealand Steel’s Taharoa operation now benefits from improved reliability, cleaner feedstock, and streamlined iron sand processing.
Want to Learn More?
To explore more about vibrating screen solutions for mining and aggregates, visit the QuarryNZ website.
If you are planning a custom vibrating screen installation or upgrade, contact Rocktec today.