KSG Gravel Pump

Professional tunnel shield and gravel KSG series gravel pump, efficient pumping of coarse particles and heavy abrasive slurries

  • Pumping Coarse Particle Slurries


  • Wear- Resistant and Corrosion- Resistant Material


  • Easy Installation and Simple Maintenance


  • High Performance and Low Total Cost of Ownership


KSG Gravel Pump

Kingda’s gravel pump is specialized in transporting slurry pump equipment containing large particles. KSG gravel pump has strong pumping capacity and features of wear resistance and corrosion resistance.This series of pumps are single-stage, single-suction, cantilever, horizontal structure. The pump body, the pump cover and the connecting plate are connected by a clamp band. The lubrication form adopts grease lubrication.

The pump and driver can choose direct-coupled transmission, V-belt transmission, hydraulic coupling transmission and reducer transmission.

The outlet direction of the pump can be in any position of 360°, which has the advantages of convenient installation, good cavitation performance and anti-abrasion. The inlets of all types of pumps are horizontal. Seen from the transmission direction, the pumps rotate clockwise, and they can also rotate counterclockwise as required.

Features and advantages

Low Cost

Kingda’s gravel pumps are designed to provide customers with high performance and low total cost of ownership. Kingda gravel slurry pump adopts advanced design and technology to reduce energy consumption while improving energy efficiency. The overall cost of use can be reduced, making the total cost of ownership of the slurry pump lower.

less replacement parts

Gravel pumps usually need to deal with media containing a large amount of sand and gravel particles, which will cause pump wear. The pump body and impeller are made of high-quality wear-resistant materials, which can increase the service life and reliability of the pump, and reduce maintenance costs and replacement parts costs.

Customized Solutions

Kingda Pump Group can provide customized gravel pump solutions according to the specific needs of customers. This means that customers can choose the best configuration suitable for their engineering projects, reducing unnecessary investment and use costs.

Sealing System

The sealing system of the gravel pump is essential to prevent the leakage of the medium in the pump. Kingda Pump Group gravel pumps use advanced sealing technologies, such as mechanical seals or packing seals, which can ensure efficient pump operation and reduce energy and maintenance costs caused by leakage.

Why choose KINGDA?

Since 75 years, Kingda Pump Group has been engaged in the experimental research of fluid equipment design theory, water pump performance, wear mechanism, wear-resistant materials and new product development. It is the only slurry pump manufacturer in China with an impurity pump research institute, representing domestic The advanced level of slurry pump; has a perfect marketing network system and after-sales service system.

Facing the international market, supporting the Belt and Road strategy, continuing and further expanding foreign sales business, we have established technical cooperation and business contacts with more than 30 foreign companies, and our products have been exported to more than 60 countries and regions…

Kingda Pump Group


Dredging Industry

1. Efficient dredging: Kingda® gravel pump can efficiently suck and transport water containing large particles and high-concentration sediment into the pump body, effectively dredging rivers, ports and waterways.
2. Large-flow transportation: KSG gravel pump has a large-flow transportation capacity, which can quickly transport excavated sand, gravel and granular materials to designated locations, meeting the needs of dredgers to remove large amounts of sediment and transfer them quickly.
3. High anti-wear performance: Kingda® gravel pump is made of high hardness and high wear-resistant materials, which can effectively resist the wear of granular materials, prolong the service life of the pump, reduce the frequency of maintenance and replacement, and adapt to the harsh working conditions of the dredger industry environment.
4. Adjustable flow rate and conveying distance: Kingda® gravel pump has the function of adjustable flow rate and conveying distance, which can be flexibly adjusted according to actual operation needs and provide customized solutions.

Shield Tunnel

In tunnel shield construction, mud is an indispensable working fluid that can lubricate shield mechanical parts, cool knives, stabilize formations, etc. However, during construction, the mud will contain a large amount of sand and gravel impurities, which will affect the operation of the shield machine and the quality of the tunnel.

1. Mud treatment: extract the mud containing gravel impurities excavated by the shield machine and transport it to the mud treatment equipment for cleaning treatment to maintain the cleanliness of the construction site.
2. Mud injection: accurately inject specific materials or additives into the mud to improve properties or strengthen geological conditions to ensure smooth construction.
3. Lubrication and cooling: deliver lubricant and coolant to the key parts of the shield machine to ensure good lubrication and heat dissipation effects, and improve the efficiency and life of the shield machine.
4. Waste treatment: The generated waste and residue materials are extracted and transported to the designated treatment area, reducing the mess on the construction site and facilitating the follow-up cleaning work.

Mining Tailings

1. Tailings treatment: The tailings containing solid particles are extracted and transported to processing equipment for separation, dehydration, filtration, etc. to achieve resource recovery and environmental protection.
2. Slurry transportation: efficiently and stably transport the tailings slurry containing high-concentration solid particles to the designated position to improve work efficiency.
3. Environmental governance: by controlling and reducing the impact of tailings on the environment, environmental governance and protection can be achieved, and environmental risks can be reduced.
4. Silt pumping operation: pump out the silted solid particle material and transport it to the treatment system to improve the treatment efficiency of the tailings pond.

To sum up, the Kingda gravel pump plays an important role in the mining tailings industry. It provides reliable support for the treatment and management of mining tailings and promotes resource Utilization and environmental sustainability.

Services and Maintenance

Kingda® slurry pumps are exported to more than 40 countries and have a large sales network. At the same time, the company is equipped with more than 100 middle and senior engineers, who can provide you with full technical support at any time

Since its establishment in 1948, Powerful Pump Industry Group has been researching and digging in the field of pumps. With 75 years of product development, innovation and practical experience, it can provide users with specific services whether in the mining field or the dredging shield field. Customized services and solutions.

After reaching a cooperation with the user, the factory production will implement intelligent management, adopt a digital management system, and realize the visualization of the entire order progress, so that users can keep an eye on the progress of their orders; after that, we will always pay attention to the use of our pumps by users and collect relevant information. It can be optimized and improved at any time according to the problems caused by different working conditions of different users.

Of course, if there is a problem with the operation of the equipment, we have a professional global logistics channel, which can deliver the required parts in the fastest time, and there will be professional technicians to help you solve the problem one-on-one until it runs normally.

Replacement Parts

Kingda® gravel pump is researched, designed, manufactured and installed by technical engineers for decades, just to be able to operate normally in the harsh environment of the user, so every part in the gravel slurry pump plays a vital role .
Advantages of original Kingda® spare parts:
1. Using advanced casting technology to ensure that the product has excellent wear and corrosion resistance, high performance and low total cost of ownership
2. Wear-resistant material, can increase the life and reliability of the pump
3. Mechanical seal or packing seal to ensure efficient operation of the pump and reduce energy and maintenance costs caused by leakage
4. 5 trolley-type heat treatment units, which can meet the requirements of softening and hardening heat treatment for parts below 30 tons
In addition, we strictly control the quality and safety testing of each pump accessory to ensure that each part can exert its greatest advantages.
If you have demand for Kingda® slurry pump spare parts and spare parts, please feel free to contact our team for communication.

Product Specifications

Product Model KSG Gravel Pump
Diameter (mm) 100~400
Flow (m3/h) 60~4000
Lift(m) 10~60
Material M

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Bottom FAQ

How To Choose A Slurry Pump

When it comes to slurry pumps, you might think that all you need is a pump that can handle the job. But if you’re not careful, you could end up with a pump that’s not only ineffective but also dangerous and expensive.

There are a few important things to consider when choosing a slurry pump: design, construction materials, deployment method, pump seal, and power seal.

Slurry Pump Design

When selecting a pump, you don’t want to end up not getting the right one suitable to get the job done. So, you might need to ask yourself: how big is your slurry?

The size of your slurry is a huge factor in determining what kind of pump you need. If the slurry is small, you could probably use an open centrifugal pump or a closed impeller pump. However, if you have a large amount of slurry that needs to be pumped, then you’ll need to look into a centrifugal axial pump or even a double-suction centrifugal pump.

Slurry pumps come in all shapes and sizes—round, rectangular, square, even triangular! You’ll want to find one that fits your needs perfectly. If you’re going to be transporting your slurry through narrow pipes, you may want one with a smaller diameter opening. If you need to move your slurry quickly, look for one with a large capacity and high flow rate.

Next up: how much does it weigh? This is especially important if you plan on transporting your slurry by hand or with a forklift. The heavier the better if that’s going to be part of your workflow!

And finally: what kind of environment are you working in? If you’re working outdoors (or even indoors), you’ll want something that can withstand both extremes of temperature and weather conditions like rain or snowfall without breaking down on you or corroding over time due to exposure to air pollution like car exhaust fumes.

Construction Materials

Choosing a slurry pump is a lot like choosing a partner for life. You need to know what you want, and you need to be able to compromise with your partner.

The construction materials of the slurry pump can have a significant impact on its performance. The material used in the construction of the pump should be resistant to wear and tear, so that it can be reused for long periods of time.

When choosing a slurry pump, there are many factors to consider. Here are a few of the most important ones:

  • Construction materials

Slurry pumps can be made of cast iron, stainless steel, and other metals. Cast iron is more durable than stainless steel and will last longer, but it is heavier than stainless steel. Stainless steel is lighter and easier to install than cast iron, but it is not as durable over time.

  • Durability

Durable slurry pumps will last longer than less durable models, so you should consider this factor when choosing your pump.

  • Capacity

The capacity of your slurry pump should match the size of your tank so that you don’t overload it or run out of water too quickly during use!

Slurries are specialized compounds found in various processing industries, including sanitary sectors like mining, aggregates, mineral processing, dredging, tunneling, and water treatment, as well as other industries that involve slurry or sewage. Because slurries combine the properties of liquids and solids, special consideration must be given when determining the type and size of the slurry pump to use with them. Kingda Pump features several companies that specialize in slurry pumps capable of handling a wide range of loads, from light to heavy.


Slurries are solid-liquid mixtures, with the liquid acting as a transport mechanism for the solid. The size of particles in slurries can range from a micron to thousands of millimeters. The ability of a pump to move a slurry through a process line is greatly influenced by particle size.

A slurry pump is a centrifugal pump used to transport abrasive and frequently corrosive solid particles inside a carrier fluid. To minimize substantial particle velocity and thus wear rates, the slurry pump should have a low specific speed design that allows for slower operating speeds than ordinary water pumps. Depending on the application, wear-resistant metallic or elastomeric materials are used in slurry pump components that come into contact with the pumped medium.

All Slurries Share Five Essential Characteristics:
  • Abrasive when compared to pure liquids.
  • Thicker in texture than pure liquids.
  • Many solids may be present (determined by a percentage of total volume).
  • When the slurry is not moving, the solid particles usually settle out of the residue relatively quickly (depending on the particle size).
  • Moving slurries require more energy than moving pure liquids.

Slurries are further classified into four classes by industry based on their aggressiveness, with Class 1 being the least aggressive and Class 4 being the most aggressive. Pumping slurries can wear out pumps and pipeline components in the following ways:

  • Gouging, high-stress grinding, and low-stress grinding are abrasions (applicable only with settling-type slurries).
  • Surface material resulting from the actions of particles that make up the slurry that is pumped is known as erosion. Pumping settling-type slurries cause the most decay.
  • Corrosion is caused by electrical galvanic action in the pumped fluid. Specific slurries (highly acidic or alkaline compounds) have a more significant impact on component corrosion than others.


What Is A Slurry Dewatering Pump?

A slurry dewatering pump is used to pump liquid with solid particles. Submersible slurry pumps vary in design and construction to accommodate different kinds of slurry that differ in saturation solubility, particle density, physical properties, and solvent content. Submersible slurry pumps are more durable than liquid pumps because they have ritual sacrifice content and substitutable wear parts to endure abrasion wear.

The percentage and layout of impellers in the propeller affect efficiency. When handling slurries, efficiency savings are generally undermined by authorizations and the requirement to build abrasion-resistant heavy-duty components while considering materials, thickness, and other factors.

Types Of Slurry Dewatering Pump
Submersible Slurry Pump

These powerful electric submersible pumps are used to pump sand and mud in dredging, quarrying, and mining industries. All models are wear-resistant materials and come standard with an agitator to dissolve solids under water.

A submersible pump has a significant role because it pushes water to the surface by converting rotational energy into kinetic energy into pressure energy. This is achieved as the water enters the pump: first at the inlet, where the rotation happens of the impeller pushes the water through the diffuser.

A submersible pump’s primary and only benefit is that it will never need to be primed because it is submerged in the liquid. It is also very efficient as they don’t need much energy to get or pour water, which will get to the pump.

Only the pressure forces water into a submersible pump, which “saves” a lot by preventing some leakage.

Also, while the pumps aren’t versatile, the choice certainly is. Other submersible pumps can easily handle solids, while others are better suited to liquids. Submersible pumps are quiet because they are submerged, and cavitation is never a problem as there are no ‘pressure spikes’ as the water flows through the pump.

Centrifugal Slurry Pump

Centrifugal pumps in quarries come in solids or slurry handling and clean or dirty water handling. The pump design for these two applications varies greatly. Therefore the operating performance is also different, resulting in significant differences in the power required for the pumps to function correctly.

A slurry pump, in general, is a troublesome iron pump with open clearances, a heavy duty architecture, and minimal machining in its manufacture. As such, those pumps are appropriate for pumping massive or vast quantities of solids contained in slurries. Dredging/slurry pumps, along with Warman or Metso (cease suction) and Dragflow/Toyo (submersible), are top examples of those sorts of pumps in which hydraulic performance isn’t as essential as their capacity to deal with rocks, sand, ore, and different solids-encumbered fluids without experiencing immoderate put on or downtime, even as working in very trying situations for prolonged periods.

What Is A Slurry Pump?

Pumps designed specifically for handling slurry are called slurry pumps. Slurry pumps are more sturdy and heavy-duty than water pumps, which are more susceptible to wear. Slurry pumps are used when there are particles in the fluid stream. Application-based pump and material decisions should be made for trouble-free performance when handling highly corrosive or abrasive liquids. Lindquist lists several businesses that are experts in manufacturing slurry pumps that can take a range of slurry loads from low to heavy.

A slurry pump is a type of centrifugal pump used to move solid particles inside a carrier fluid that is typically acidic and abrasive. To reduce solid particle velocity, the slurry pump should have a low specific speed design that enables slower operating speeds than typical water pumps.

Features Of Slurry Pumps

As indicated below, many different pumps are appropriate for pumping slurries. Before selecting a technology, there are a few crucial considerations to make. The amount of physical wear on the pump and its parts, as well as whether or not the solids will pass through the pump without being affected, will depend on the size and type of the particles in the liquid.

Slurry pumps are often more significant, influential, and made with stronger shafts and bearings than regular pumps. The most common kind of slurry pump is the centrifugal pump. These pumps use a rotating impeller to move the slurry, much like a centrifugal pump would move a liquid that resembles water.

Slurry-optimized centrifugal pumps frequently have the following characteristics in addition to the standard features:

  • Increased size and material content of the impellers. To account for abrasive slurry wear, this is done.
  • Less and thicker vanes are present on the impeller. Unlike a typical centrifugal pump, which has 5–9 vanes, its 2–5 vanes allow solids to pass through it more readily.

For pumping abrasive slurries, these pumps can also be made of specialized high-wear alloys such as AL-6XN® or Hastelloy® C-22®. Two hardening methods frequently used to harden stainless steel for abrasive slurries are armory and expensive.

Positive displacement pumps may be preferable to centrifugal pumps for some slurry pumping applications. Some of the ailments include:

  • An excessively sluggish slurry flow rate
  • Someone with a big head (i.e., the height to which the pump can move liquid)
  • Higher efficiency is required than can be provided by centrifugal pumps.
  • Control over flow has been enhanced.
Slurry Pump

It could be hydraulic or electric. The submersible electric slurry pump needs to be maintained cool. A cooling jacket should be added if the slurry pump is semi-submerged or dry for an extended period. A motor with Class H insulation is advised for heavy-duty electric slurry submersible pumps. They may also have sensors that recognize high temperatures and moisture.


The rotating part of the slurry pump is the impeller. The slurry receives the centrifugal force. They are usually made of spheroidal cast iron with high chromium, which is abrasion-resistant. Impellers can be closed, open, semi-open, or recessed.


Typically, the casing has a semi-volute or concentric shape. Although it is frequently made of cast iron, depending on the application, it might also be coated to avoid corrosion or made of specialized alloys for abrasive applications.

Shaft And Bearing Assembly

The shaft is in charge of conveying the impeller’s rotating motion from the motor. The shaft’s heavy-duty roller bearings reduce vibration by preventing it from moving in other directions.

Shaft Sleeve

Keeping the shaft secure is its duty. A corrosion- and abrasion-resistant material makes up the shaft sleeve.

Seals Package

The seals’ package stops slurry from leaking into the motor and bearings. The sealed container may contain lip, mechanical, and hybrid seals.

Upper And Lower Plates

The impeller has these plates on both sides. They are susceptible to degeneration. The pump’s clearances are calibrated to maximum efficiency.


The filter stops large particles from becoming trapped inside the pump’s impeller zone.


This enables the pump to suspend solids while capturing sediments. The way it operates is that the vanes direct a constant, high-pressure flow of liquid in the form of a cone toward the deposits, moving the solids there and generating a high concentration. Additionally, the agitator prevents particles from clogging the pores of the filter.

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