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Dredging operations require equipment capable of moving colossal volumes of thick, sediment-heavy water without faltering. The Tsurumi NKZ611 is a massive slurry pump engineered specifically to maximize fluid transfer rates while aggressively agitating settled debris. Its high-capacity design makes it the ultimate tool for clearing large bodies of water and settling ponds.
Operating on a 415 V three-phase supply, this unit is powered by an 11 kW, 4-pole motor drawing 22.5 Amps. The hydraulic output is extraordinary, achieving a staggering maximum flow of 3900 L/Min and a maximum head of 21.5 m. The massive 150mm discharge ensures that this incredible volume of heavy slurry is evacuated with minimal resistance.
The intake is dominated by a powerful ductile cast iron agitator that fluidizes mud and sand, ensuring a continuous feed. The ductile cast iron semi-open impeller easily processes 30mm solids, pushing them through the wide spiral casing. The slower 4-pole motor speed provides the necessary torque to move this heavy material while reducing internal wear.
This 210 kg cast iron behemoth is designed for continuous, heavy-duty service. A specialized water jacket cools the motor using the pumped liquid, allowing the pump to operate safely even when exposed to air. The internal components are protected by dual silicon carbide mechanical seals, an OIL LIFTER, and a Circle Thermal Protector.
FEATURES
- Paired with a huge 150mm discharge to move unprecedented volumes of thick slurry and sediment rapidly.
- Powerfully fluidizes settled mud, sand, and debris at the intake, ensuring a smooth, continuous pumping process.
- The integrated water jacket actively cools the motor, permitting safe operation even at extremely low water levels.
- Delivers immense rotational force at lower speeds, reducing the erosive impact of pumping highly abrasive materials.
- The semi-open impeller and wide spiral casing are specifically engineered to pass large debris without clogging.
- Provides a robust, heat-resistant barrier against water and abrasive intrusion, kept lubricated by the patented Oil Lifter.
FAQs
General Product FAQs
1. How do I choose the right pump for my setup?
Selecting the correct pump depends on your required flow (L/min), total head (vertical lift + friction loss), and power source. If you're unsure, contact our team and we’ll size the right system for you.
2. Do you offer support with system design or setup?
Yes — we provide expert advice to help you choose, install, and optimise your pump system. Whether it's a simple setup or a custom solution, we’re here to help.
3. Do you offer complete pump solutions or just products?
We don’t just sell pumps — we provide complete solutions. From accessories and control systems to full packaged setups, we can supply everything required to get your system running efficiently.
Shipping & Availability
1. Do you offer Australia-wide shipping?
Yes — we ship across Australia. Bulk or oversized orders may incur additional freight charges otherwise we offer free shipping over $100*
2. How long does delivery take?
Orders are typically shipped within 1–2 business days, with delivery taking approximately 2–7 days depending on your location.
3. What courier or freight companies do you use?
We work with a range of trusted carriers including Australia Post, StarTrack, TNT, and other national freight providers depending on the size and location of your order. This allows us to ensure fast, reliable delivery across Australia, including regional and remote areas.
Warranty & Support
1. Do your pumps come with a warranty?
Yes — all products are backed by manufacturer warranties. Warranty periods vary depending on the brand and product type.
2. What support do you offer after purchase?
We provide ongoing support including:
- Installation advice
- Troubleshooting
- Spare parts supply
- System upgrades
3. What is the warranty process if something goes wrong?
If you experience an issue, simply contact our team with your order details and a description of the problem. We’ll guide you through troubleshooting and, if required, arrange repair, replacement, or manufacturer assessment in line with warranty terms.
Why choose Foundation Pumps?
1. Why choose Foundation Pumps over other suppliers?
We focus on supplying proven, high-quality pump solutions backed by real industry knowledge. Unlike general resellers, we understand how these systems perform in the field and provide honest, practical advice to ensure you get the right solution the first time.
2. Do you offer expert advice before and after purchase?
Yes — we support you at every stage, from selecting the right pump through to installation and ongoing use. Our team is available to assist with sizing, troubleshooting, and system optimisation whenever you need it.
3. Do you stock trusted brands and quality products?
We carefully select and supply pumps from reputable manufacturers known for reliability and performance. Our range includes both industry-leading brands and high-value alternatives that meet Australian standards and conditions.
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