Submersible and vertical slurry pumps are two commonly used types of slurry pumps to transport abrasive and corrosive slurry in the mining industry. Choosing the right types of slurry pump for mineral extraction, ore processing, and tailing disposal is challenging work. Perhaps you will face some problems. Submersible vs vertical slurry pump, which one is better? How to choose the right slurry pump for my mining project? How can I operate the submersible or vertical slurry pump?

TAIAN OCEAN Pump is a professional slurry pump manufacturer and supplier with 30 years of industrial experience. In this article, let’s explore the similarities and differences of submersible vs vertical slurry pumps. By comparing their structure, features, performance, and suitability for mining projects, you will gain a better understanding of which slurry pump type may be more suitable for specific needs. Then you can make informed decisions and optimize their mining operations.

1 What is Slurry Pump?

A slurry pump, sometimes called a sand pump or mud pump, serves to transport mixtures containing solids suspended in liquids efficiently. Its defining attribute allows for the movement of fluids possessing high concentrations, viscosity, and particulate matter. Common applications include pumping the mired ore extracted from mines or shifting tailing from mineral processing facilities to storage reservoirs.

The slurry pumps crafted by TAIAN OCEAN PUMP primarily handle diverse slurry components, whether coarse or fine in nature. They prove capable of propelling mixtures containing typically in excess of 60% solids by volume. Additionally, TAIAN OCEAN PUMP’S research institution conceived spacious conduits and interchangeable, abrasion-resistant impellers to forestall blockages and excessive wear. Impellers are often fabricated from wear-resistant materials like high-chromium alloys, enabling them to withstand the corrosive properties of the slurry. Slurry pumps offer the advantages of efficiency, durability, energy conservation, adaptability and environmental care in mineral extraction, ore handling and tailing management, providing effective solutions for the mining industry. This section will introduce submersible and vertical slurry pumps separately.

1). What is Submersible Slurry Pump?

A submersible slurry pump occupies a specialized category designed for complete submersion within liquid environments. This underwater orientation allows functioning amid harsh conditions like sub terrain excavations. Submersible slurry pumps normally utilize an electric motor, stationed atop the pump body, to impart rotational force to an internal impeller through a connected rotor. This transference of energy propels the mixture. Benefits include suitability for adverse surroundings, facile installation and servicing, and lessened surface disturbances.

TAIAN OCEAN PUMP’S DMZ series represents robust centrifugal pumps engineered for submerged operation amid the harshest mixtures, handling corrosive and abrasive slurry with aplomb. Slurry pumping presents distinct difficulties. TAI’AN OCEAN PUMP addresses this through crafting the DMZ series from premium wear-resistant materials, engineered for abrasion and impact endurance via exclusively high-chrome wetcomponents, pressurized seals, and run-dry functionality for the most taxing duties.

An optimized high-chrome steel impeller ensures peak output within optimal efficiency ranges. DMZ pumps feature high efficiency, strong performance, reliable operation and lowered functional/maintenance costs through extended lifespan—adeptly managing solids up to 60% by volume. Applicable to intricate heavy-duty extraction and handling of slurry, sludge, and sediment.

The submersible slurry pump plays a pivotal role in mining workflows. Attributes like efficiency, durability, parsimony and adaptability enhance both productivity and safety. When TAIAN OCEAN PUMP aids customer selection, all pertinent factors receive prudent consideration: slurry properties, required flow/lift/power, and installation/servicing conditions/costs. Ensuring the pump meets real needs.

Submersible Sand Slurry Pump

2).What is Vertical Slurry Pump?

Vertical slurry pumps principally transport liquids bearing suspended solids, finding application especially within mineral extraction, ore preparation, and tailing management. Compared to their submersible counterparts, vertical pumps adopt an upright configuration occupying minimal space while simplifying installation. This orientation counterbalances axial force, lengthening operational lifespan and stability. Wear components fashioned from abrasion-resistant materials markedly bolster durability. Unique seals effectively forestall leakage and intake of air, permitting coolant circulation to sustain untroubled function. Inlet/outlet placement adapts to need, allowing flexible placement.

TAIAN OCEAN PUMP CO.,LTD. provides two vertical slurry pump variants. One excavates and moves dredged material from fish farms and waterways or separates and conveys fine sand via blowers. The other operates submerged within mining contexts, handling, transporting and discharging ores, waste rock, tailing, and other particulate-bearing mixtures while useful also for processes like mining, mineral processing, tailing management, and mine wastewater remediation.

TAIAN OCEAN PUMP’S vertical slurry pumps possess distinct advantages when applied to mining situations. Their facile installation and simplified servicing render them eminently practical choices for certain mineral extraction environments.

vertical slurry pump
vertical slurry pump

2 What Are Similarities Between Submersible And Vertical Slurry Pump

2.1 Raw Materials

  • The casings of submersible and vertical slurry pumps commonly employ corrosion-resistant materials like cast iron, stainless steel, or high-chromium alloys. Such compositions withstand degradation and abrasion from carried mediums, ensuring durability.
  • Impellers likewise favor wear-resistant materials such as cast iron or high-chromium alloys, endowed with robustness against attrition when transporting particulate-bearing mixtures.
  • Pump components produced by TAIAN OCEAN PUMP adapt to customer needs, tailored to the conveyed fluid’s nature. This permits selecting the optimum material according to application-specific requirements, addressing diverse corrosive or benign liquids through corresponding solutions. Discerning fluid properties and duties, customized parts prove most fit for purpose while satisfying varied operational demands.

2.2 Functions

Submersible and vertical slurry pumps diverge from horizontal centrifugal pumps in a notable way. By virtue of a direct contact between inlet and carried liquor, both qualify as self-priming designs capable of autonomous starts by imbibing the medium unaided. This proves suited to special conditions or urgencies where manual priming proves impractical.

TAI’AN OCEAN PUMP’S versions of these pumps sport expansive intake manifolds, stabilizing the unit’s immersion. Situated beneath the surface, these efficient inlets aptly scavenge solids accumulated below. Through rotational fluid dynamics and vortex induction, particulate matter enters entrainment within the spiraling current, improving retrieval—a functional optimization enhancing proficiency when transporting highly concentrated suspensions up to 60% solids by volume.

3 What is The Difference of Submersible vs Vertical Slurry Pump?

3.1 Different Structure

Submersible slurry pumps integrate a specialized submersible motor in a coaxial, unified structure with the pumping body. Here, the motor rotor transmits rotational impetus directly to an internal impeller, forming a compact single unit smaller than vertical variants. This close coupling decreases noise and vibration while reducing losses through diminished transmission inefficiencies—providing superior flow and head relative to input energy.

Vertical slurry pumps commonly employ vertically-oriented motors separate from but connected to the body via drive shafts. This modular design eases servicing and part replacement to enhance maintainability. Meanwhile, TAIAN OCEAN PUMP’S technical experts discern application-tailored motor types for diverse conditions and media – selecting explosion-proof, high-temperature, or specialty motors where environments demand. This flexibility ensures reliability and stability as pumps accommodate varied needs.

The sealing systems are different

In submersible slurry pumps, mechanical seals provide excellent sealing through friction-fitted, pressurized contact surfaces forming a stable barrier. This significantly reduces leakage risk within the body, ensuring stable, safe operation. Concurrently, mechanical seals retain integrity during high-speed rotation and concentration, enhancing performance and reliability for submersible service.

Vertical pumps commonly use oil seals comprised of sealing rings and accessories. Their structure simplifies installation and maintenance through an absence of complex adjustment or specialized tools during assembly, curtailing associated fees and durations while expanding applicability. Of course, conversion to mechanical seals adheres to customer needs, showing consistencies with submersible pump customization.

The cooling methods are different

Submersible slurry pumps harness natural convection and liquid sheathing to divert motor-generated heat through absorption by the transferring fluid. Where full immersion proves impossible, TAI’AN OCEAN PUMP has conceived cooling shrouds facilitating efficient heat rejection and untroubled motor function. Through rigorous design and fabrication, equipment withstands diverse contexts through stable, trustworthy performance.

Vertical pump motors often rely on ordinary variants employing natural convection for smaller capacities. Here, housings sport heat sinks or fins multiplying surface area to augment dissipation. For higher powers or hotter surroundings, forced air convection ventilates larger motors, ejecting accumulated thermal energy. Thoughtful engineering matches application needs, yielding durable, economical solutions.

3.2 Different Versatility Application

Distinctions in structure and design between submersible and vertical slurry pumps portend divergent application scenarios. Due to its compactness and simple maneuverability, TAI’AN OCEAN PUMP’S submersible variety proves ideally suited for deep drainage like mining dewatering, construction site evacuation, underground tunnel clearance, and comparable duties, wherever efficient evacuation from depth proves mandatory. Furthermore, mining and ore processing often demand slurry extraction and conveying between stages like extraction, tailing management, flotation, and transport—duties making submersible pumps pivotal given performance and safety priorities.

By contrast, vertical pumps suit fixed or shallow liquid levels like wastewater remediation, dredging, sand separation, drilling recirculation, grinding, and other civil or extractive works where reservoir heights remain stable. Ultimately, while both uphold efficiency reliably, contextual constraints often determine whether submersibility or verticality grants optimal solution for industry’s varied extraction, preparation, and management needs.

The versatile application of submersible slurry pumps can be summarized as follows:

  1. Mine drainage: Submersible slurry pumps can be used for mine drainage to pump out underground water and slurry to ensure the dryness and safety of the mine.
  2. Ore transportation: Submersible slurry pumps can be used to transport ore slurry from mining areas to ore processing equipment or tailing treatment areas to achieve efficient transportation of ore.
  3. Tailing treatment: The submersible slurry pump can be used for pumping tasks in the tailing treatment process to transport the tailing slurry from the mineral processing plant or flotation process to the tailing reservoir or subsequent treatment equipment.
  4. Flotation process: The submersible slurry pump can be used in the flotation process to pump the slurry containing mineral particles to the flotation machine or flotation tank to achieve the separation and purification of the ore.

The vertical slurry pump has a split structure between the motor and the pump, which has a simple structure and is easy to maintain. It can be used for sludge treatment, wastewater treatment and solid waste treatment in environmental protection projects to help remove pollutants and process waste. In mining and ore processing applications, it can be used for mud transportation, tailing treatment, flotation process, etc. in the ore grinding process.

The versatile application of vertical slurry pumps can be summarized as follows:

  1. Drilling mud circulation system: The vertical slurry pump is a key component in the drilling mud circulation system. It is used to pump drilling fluid (drilling mud) from the mud pool into the drilling well bore, cool the drill bit, clean the well bore and bring it back cuttings.
  2. Drilling mud treatment: The vertical slurry pump can be used in the drilling mud treatment process to bring the used mud from the bottom of the well back to the mud treatment equipment for solid-liquid separation and mud reuse.
  3. Ore grinding: The vertical slurry pump can be used to transport slurry during the ore grinding process. The slurry mixed with the ore and grinding medium in the grinding equipment is pumped to the next step of classification or flotation process.
  4. Tailing treatment: The vertical slurry pump can be used for pumping tasks in the tailing treatment process to transport the tailing slurry from the mineral processing plant or flotation process to the tailing reservoir or subsequent treatment equipment.

3.3 Different Operation Maintenance

Indeed, there are notable distinctions in the maintenance and upkeep of water slurry pumps and vertical slurry pumps in mining ore processing. These divergences primarily stem from their disparate structures and operational principles.

Let’s start with submersible slurry pumps. Typically situated at the bottom of the mine, these pumps are driven by a motor to convey the ore and mud mixture to the surface. Being submerged in water necessitates their design and construction to withstand water pressure and corrosion. Consequently, the maintenance and upkeep of submersible slurry pumps revolve around preserving their sealing capabilities and preventing corrosion.

Regular checks on the sealing performance, cable connections, and other components of the submerged section are imperative to ensure the reliability and safety of this part. Additionally, due to the high solid particle content in mining ore processing, it becomes crucial to periodically clean the inlet, outlet, and internal slurry channels of the pump to avert particle blockages and sustain optimal pump efficiency. Our Ocean Pump R&D department has diligently engineered unique enhancements to the impeller, facilitating a wider flow path while guaranteeing a substantial flow output. This design enables smooth passage of large particles, effectively preventing clogging.

On the other hand, vertical slurry pumps are employed to pump out mud or slag from the ground and transport it to the surface. Typically installed at the top of the mine, these pumps are motor-driven to extract mud and transport it upwards. As they are situated on the ground, their design and structure are relatively uncomplicated and do not require resistance against water pressure or corrosion. Consequently, the maintenance and upkeep of vertical slurry pumps focus on sustaining their mechanical performance and preventing clogs. Regular inspections of bearings, replacement of worn parts, and clearing of blockages are essential maintenance measures.

To summarize, the maintenance and upkeep of submersible slurry pumps and vertical slurry pumps in mining ore processing differ due to their distinct structures and operational principles. Therefore, when utilizing and maintaining these two equipment types, appropriate measures must be taken in accordance with their characteristics and working environment to ensure smooth operation and prolonged service life.

Submersible dredge pump
Submersible Sand Slurry Pump
Submersible dredge pump

3.4 Different Cost

When it comes to mining ore processing, there are distinct variations in costs between submersible slurry pumps and vertical slurry pumps. These disparities primarily revolve around acquisition expenses, installation fees, operational charges, and maintenance expenditures. Let’s take a closer look at the potential divergences in costs between the two types of pumps:

1 Purchase cost:

The purchase cost of submersible slurry pumps and vertical slurry pumps may vary depending on the specific model, specification and manufacturer. Generally, since the motor of a submersible slurry pump needs to be specially customized to provide stricter waterproof performance, the purchase cost of a vertical slurry pump may be slightly lower than a submersible slurry pump under the same power and output conditions. This is mainly because the structure of the vertical slurry pump is relatively simple and the manufacturing cost is relatively low. Therefore, during the purchase process, the choice needs to be weighed based on actual working conditions and budget.

2 Installation cost:

Submersible slurry pumps need to submerge into the medium to work, so submersible pipes, cable layout and related safety measures need to be considered during installation, which may increase the installation cost. Vertical slurry pumps are usually relatively simple to install and may not require diving and complex piping arrangements, so the installation cost may be lower.

3 Operating costs

Since the submersible slurry pump needs to work submerged in the medium, its energy consumption may be relatively high. It is usually necessary to overcome large water resistance and lifting height, so the energy consumption of submersible slurry pumps may be slightly higher compared to vertical slurry pumps.

4 Maintenance costs

Normally, due to its special working environment, the submersible slurry pump requires the entire pump body to be submerged in the medium. Its internal components are susceptible to wear and corrosion, so it may require more frequent maintenance and repairs. Replacement parts, so its maintenance costs may be slightly higher than a vertical slurry pump.


Submersible and vertical slurry pumps play vital roles in handling slurry for mining projects. While they share similarities in terms of raw materials and functions, their differences lie in structure, efficiency, application, maintenance, and cost. When it comes to choosing between the two, it’s crucial to consider the specific requirements and conditions of your mining project. Consulting with slurry pump manufacturers or mining equipment experts can help determine the most suitable option for your application.

From a slurry pump manufacturer’s perspective, if you’re looking for a pump for mineral extraction or ore processing, the vertical slurry pump would be the preferred choice. On the other hand, if you’re dealing with tailings disposal, the submersible slurry pump would be the top recommendation. TAIAN OCEAN Pump is a reputable manufacturer that specializes in producing high-quality slurry pumps for various industries, including mining, sand and gravel, construction, and aggregates. If you have any questions or inquiries, please don’t hesitate to contact us.

Lingda Kong

Tai’an Ocean Pump Co.,Ltd

Mobile/Whatsapp/Wechat: +86 18562293317