What Are 1000V Submersible Pumps and Why Do Underground Mines in Australia Use Them?

Underground mining in Australia demands rugged, reliable, and efficient equipment, especially when it comes to handling water. Whether it’s dewatering a flooded shaft or managing groundwater seepage, choosing the right pump can save time, money, and stress. 

That’s where 1000V submersible pumps come in.

These pumps have become the go-to choice for underground mines across Australia, and for good reason. In this blog, we’ll break down what 1000V pumps are, why they’re used in mines, and what makes Tsurumi’s range a smart investment for tough underground conditions.

Why Use 1000V Pumps Underground?

Designed for Long Distances and Deep Sites

Mining operations often require pumps to operate hundreds of metres underground. The deeper you go, the longer the cable runs—and that’s where 1000V systems shine.

• Lower amperage means smaller, lighter cables
• Less copper in the cables brings material costs down
• Longer cable runs are possible without sacrificing performance

In short, 1000V pumps are made to handle the distances and demands of underground mining without the bulk and cost of heavier 415V cabling.

Lighter Generators, Lower Fuel Costs

Because 1000V pumps draw less current (amps), they reduce strain on power supplies. That means:

• You can use smaller, lighter generators , which are especially useful in remote locations
• Less fuel is needed to power them
• Start-up power (kilowatt surge) is lower, reducing the load on your electrical system

For mines running on mobile power or generator setups, this can translate to major savings and easier transport.

What Makes Tsurumi’s 1000V Pumps Stand Out?

Tsurumi Pumps is well-known for building tough, high-performance submersible pumps, and their 1000V options are no exception. These pumps are packed with features to maximise reliability, extend lifespan, and minimise maintenance in tough mining conditions.

Key Features That Extend Pump Life

• Oil Lifter: Keeps the mechanical seal lubricated at all times, even if oil levels drop—minimising wear and extending service life
• Double Mechanical Seal: Protects the motor from water and grit using two layers of sealing power
• Thermal Protection: Built-in sensors shut the motor off if it overheats, preventing damage
• Seal Pressure Relief Ports (KTZ 7.5kW and above, LH/LH-W): Help balance internal pressure, reducing the risk of seal failure
• Galvanic Anodes (optional): Sacrificial metal parts that reduce corrosion and help pumps last longer in harsh water

These features are designed to reduce downtime, lower operating costs, and keep your mine moving with fewer headaches.

Built to Meet Australian Mining Standards

Tsurumi’s mining-ready pumps are built to comply with local safety standards:

• Rated for voltages up to 1000V
• Include screened cables for added electrical protection
• Motors have built-in diodes for ground fault checks
• In-house testing of 1000V motors and power supply units ensures performance and safety

Whether your site runs at 415V or 1000V, Tsurumi can provide a pump that meets your voltage and safety requirements.

Optional Seawater-Resistant Kits for Corrosive Environments

Some underground sites encounter aggressive water types. That’s why Tsurumi offers optional seawater-resistant kits , which include:

• A galvanic anode to protect against corrosion
• A special cast iron impeller for added durability

These kits are ideal for mining sites dealing with salty, acidic, or otherwise harsh water. They help extend the pump’s service life and reduce wear-related failures.

Trusted Models for Underground Mining

Tsurumi offers several models suited to 1000V underground mining applications, including:

• GPN Series: Slurry pumps with high-chromium case iron impeller, suction plate and agitator
• KTZ Series: Versatile, powerful, and now available in 1000V
• LH / LH-W Series: Built for high head pumping in deep underground shafts

Each model is tested and supported by Tsurumi’s Australian team, with parts and service readily available.

Conclusion: Fewer Breakdowns, Lower Costs, and More Uptime

Underground mining is tough work, but your dewatering pumps shouldn’t make it tougher. With Tsurumi’s 1000V submersible pump range , you get:

• Longer cable runs with less material cost
• Lower generator and fuel requirements
• Built-in features that reduce wear and extend pump life
• Compliance with mining safety standards
• Flexibility to install your way

Backed by decades of engineering expertise and local support in Australia, Tsurumi’s pumps are designed to deliver maximum reliability at the lowest total cost of ownership .

If you’re looking for a smarter pumping solution underground, it’s time to take a closer look at Tsurumi.