Material Differences of Centrifugal Slurry Pump

Centrifugal slurry pump is commonly used in pumping systems that move sand deposits to a long distance. Centrifugal slurry pump has good price and high performance in our sand pump machines. Small size and volume make centrifugal slurry pump easy to operate, transport and maintain. Centrifugal slurry pump is widely used for tailing, sediment, sand or slurry extraction in the power plant, river, lake, pond, etc.

Every manufacturer of sand dredging pump in the market claims to produce wear-resistant centrifugal slurry pumps. What are the differences? Except the working conditions, sand pumping machine rotation speed and other factors, which kind of casting material is better? This article elaborates on these issues.

1. Material A05, also known as chrome 27, material label Cr27, is mainly used in casting the over-current parts of large particle gravel pump. It is originally used by Australian WAMAN Company in the mining project. This material is a kind of wear-resistant white iron, with the advantages of corrosion resistance and erosion resistance. Compared with other casting material, it contains nickel instead of molybdenum.

2. Material Cr26.It is the over-current parts material of Centrifugal slurry pump. Cr26 is mainly used in submersible slurry pump and vertical slurry pump. Cr26 contains 26% chromium, and also contains nickel, molybdenum, copper. Cr26 has high wear resistance and high performance, so it is suitable for high speed sand suction pump.
   
   
   
   

3. Material Cr28, mainly used in marine sand pump and centrifugal slurry pump. The chromium content is 28%. It also contains nickel and molybdenum. It is harder than Cr26, and has good tensile properties. The application range is very wide.

3. Material Cr15Mo3. Compared with above three casting material, Cr15Mo3 has strongest wear resistance and is also the hardest casting material. But the production of molybdenum and nickel is low, so the price of Cr15Mo3 is very high. The casting parts cost of Cr15Mo3 is twice as much as high-chromium alloy. However China is vigorously mining nickel and molybdenum ore, the market prospect is good.

Wear resistance of the sand pump over-current components is mainly depends on the content of carbon. Then adding trace elements such as silicon, manganese, phosphorus, nickel, chromium, molybdenum, copper, aluminum, boron, vanadium, tin, etc. High wear resistance can be realized by changing the proportion of the elements. In the actual selection, customers can select different types of centrifugal slurry pump and over-current components materials according to the requirements of the sand output.

Tai’an Ocean Pump (OCEAN Pump) Co., Ltd. is the leading centrifugal slurry pump and sand dredger solutions manufacturer, supplier and exporter in China.We have more than 30 talented sand pump experts and 15,000 square meters factory. More than 4 series 20 kinds of sand pumps, slurry pumps, sand dredgers and related parts had been manufactured to satisfy your pumping requirements.

Product innovation and customer satisfaction are our continuous commitment to all our partners. OCEAN Pump is the Certification of New Hi-tech Enterprises by the Government. We provide our customers with a complete set of  sand, slurry, gravel pumping solutions and related parts. Our main products include centrifugal portable sand pump, marine sand pump, slurry pump, gravel pump, submersible slurry pump, vertical sand pump, simple small sand pump dredger, submersible dredger, mini dredge for sale,  small dredging equipment, small pond dredging equipment, sand suction dredger,  suction dredging equipment, cutter suction dredger, sewage submersible pump, lake dredging equipment, mini dredges for sale, sand dredging machine, river dredging equipment and other parts like discharging sand pipe, floater, rubber hose. They are widely used in mining, metallurgy, coal washing, power plants, sewage water treatment and dredging in such industries as mine, chemical and petroleum. We are looking for pump dealers all over the world.

High Efficiency Submersible Dredgers Delivered to Philippines

High efficiency submersible dredger, also called submersible slurry pump dredger, is designed and manufactured with optimized hydrodynamic technology for sand dredging and silt clearing. OCEAN brand ZJQ series high efficiency submersible dredger is equipped with our own specially designed submersible slurry pump, advanced high efficiency suction reamer head and the famous brand motor.  All of them are integrated together to realize high slurry suction ratio, more thorough dredging and large slurry or sand output.

 In July, 2018, We got an inquiry of sand suction dredger from Philippines. The customers required that the medium were sucked out was filled into Geo tube. Our high efficiency submersible dredger could do this work, So we sent our catalogue of high efficiency submersible dredger for reference.

In early August, we talked about the high efficiency submersible dredger by email. Detailed content was as follows.

1. Q: We are looking for electric-driven sand dredger for dredging (as seen in the 1st photo in page 9 of your product catalog). Please provide us specifications of high efficiency submersible dredger(discharge distance, lift, dredging depth, power, frequency, sand output, speed, etc.), together with your quotation.

A: Please check attached technical specifications of high efficiency submersible dredger with all models .

The discharge distance depends on the lift .Dredge depth can be 25m .

Normally the power is 3 phase 380v, 50hz, and we can also customized it with 3 phase, 415V, 50hz, or 380v, 60hz.

The output of sand depends on the flow capacity, normally for the fine sand, the sand output is about 20% of the flow capacity and the coarse sand is about 15% of the flow capacity. And it also depends on the soft sand or sharp sand, etc.

2. Q: What is the lead time of high efficiency submersible dredger to the Philippines? How much is the sea freight?

A: The delivery time depends on the model of high efficiency submersible dredger, if there is no stock, the delivery time is 25 working days after deposit. The sea freight need to be calculated after confirming the sand dredger model .

3.Q: What is the best applicable pump for filling sand into the small holes of Geo tubes?

A :I think what u use is like Geo tube filling. Using this kind of submersible dredge pump just need the electricity and no irrigation water in. And using the hoses and valves to control the flow capacity to the Geo tube

After Communicating detailed information with clients for about 1 month, finally they confirmed 3 set of high efficiency submersible dredgers.

High Efficiency Submersible Dredger Parameters

Slurry pump model	ZJQ200-15-22 Outlet diameter – 150mm Flow capacity – 200m³/h Head – 15m Power – 22kw, 3 phase, 440V, 60Hz
Generator set	440V/60Hz
Cable roller	To make the pump cable in regular
High pressure water jet	To supply the high pressure water and flush the sand up
Big winch	To hoist the submersible slurry pump up and down
Small winch	To hoist the discharge hose
Propeller	Driven by the diesel engine, to make the dredger forward and backward
Winder and anchors	To fix the dredger
Dredger dimension	with 6m steel plate, floating platform
Discharge hose	6 inch flexible rubber hose
Discharge pipe	6 inch HDPE pipe
Spare parts	Some quick-wear spare parts for pump
Loading	2*40 HQ

Customers wanted the high efficiency submersible dredger urgently. We sped up the production. At the same time, one jet suction dredger was in production. Time is limited .

High efficiency submersible dredger hull in production in our workshop

Within 25 working days ,we finished the high efficiency submersible dredger and order the container for loading

Sticking on the product developing ideas of innovation, simpleness, quality and energy saving, we had been always focused on designing and manufacturing sand pump, slurry pump, gravel pump and sand dredgers since the foundation in 1997. Cooperated with domestic famous universities like Shandong University in sand pump research and development since 2005, we had obtained more than 15 patents, and become the leading sand pump brand in China. There are more than 3500 sets of sand pumps and dredgers running around the world. We had been provided professional pump solutions and services to over 60 countries.

We are not only manufacturing best quality dredge products but also providing professional design and installation service. OEM, ODM, custom design and fabrication are also available. OCEAN Pump is willing to become your partners with our high cost performance sand dredging products, excellent quality and perfect after-sale service.

We are looking for dealers around the world. Hope to be your partner.

Large Particle Sand Pump Was Delivered to Indonesia for Sand Pumping

Large particle sand pump, also known as gravel pump, is the ideal sand pumping equipment. The OCEAN brand large particle sand pump is precisely casted from high quality and high wear resistant material. Large particle sand pump is specially designed for the extraction of large particles such as pebbles, small stones and river garbage for long distance transportation. The maximum particle diameter allowed to pass can reach to 240 mm.

OCEAN brand gravel pump has the advantages of wear resistance, corrosion resistance, high sand absorption efficiency, large over-flow passage and good anti-cavitation. Gravel pump is widely used for pumping sand and large particles in reservoirs, rivers, lake and sea.

Indonesia customers purchased a set of gravel pump ZS150 which was equipped in a sand dredger welded by themselves in September, 2018. We finished the production and delivered the sand suction pump at the end of September. The sand pump set arrived at the working site on 15^th, October, 2018. The customers immediately welded a dredger hull. In the early stage we communicated by Wechat and video, the customers quickly learned the installation precautions and welded the dredger hull to install the sand pump. The whole set of dredging equipment was installed on 25^th , October and the pipeline was connected for running test.

Technical Parameters Of Large Particle Sand Pump ( ZS150 )

Flow capacity	216m³/h
Head	22m
Rotation speed	980rpm
Power	6-37kw
Inlet diameter	150mm
Outlet diameter	100mm

During the test, the customers found that the sand suction pipe were always moving and couldn’t be fixed in a certain area to pump sand. They sent us a video about the problem. After watching the video, we understood the problem. The customers welded their sand-absorbing faucet in low weight and small size in order to make it easy to float on water, and the sand pumping area was shallow, when the sand dredger worked, high-pressure water impact force provided by water pump made the sand-absorbing faucet can not sink into water. We suggested customers increasing the weight of the sand-absorbing faucet. After improvement, the problem was solved. The sand output of large particle sand pump was about 50m³/h, the discharge distance was about 200m. The customer was very satisfied with the result.
Taian OCEAN pump Co.,ltd specializes in the development, production and sales of large-particle sand pumps, dredging pumps, mud pumps, etc., and strives to achieve the business purpose of “Integrity, Harmony and Win-Win” to create maximum value for customers. “For the mission, practice the spirit of excellence in craftsmanship, and strive to build a leading brand in the sand pump industry with core technology.

Submersible Sludge Pump with Pipeline was Delivered to Maldives

Submersible sludge pump is the ideal pumping equipment to handle sludge, slurry and other high density water mixed solids. Most of the submersible sludge pump components seem like submersible slurry pump, the submersible sludge pump is mainly composed of three parts which are pump body, motor and combined seal. Submersible slurry pump is widely used in metallurgy, chemical industry, mining, coal, electric power, building materials, municipal environmental protection and river dredging.

In addition to the main impeller, the submersible sludge pump adds a stirring impeller at the bottom of pump body, so the submersible slurry pump can achieve high concentration delivery without auxiliary equipment. The submersible slurry pump unique sealing device can effectively balance the pressure inside and outside the oil, and balance the pressure at both ends of the mechanical seal, ensure the reliable operation of the mechanical seal to the maximum extent, greatly extend the service life, the submersible slurry pump motor can increase the water inlet detection according to user requirements. Various protection devices such as overheating enable the product to operate safely for a long time under severe working conditions.

Our Customer from Maldives consulted our submersible sludge pump in October. He wanted to build a tourism resort nearby the sea. They needed to suck the fine sand out of the sea and filled it on the beach. The sand pumping site is around 500 meters away from the shore.The dredging depth is around 12 meters.

The customer also mentioned several requirements.

1. The driving power of the submersible slurry pump is motor drive, The voltage is 400V.

2. During the submersible sludge pump operation, it is better make Minimize noise and less environmental pollution.

3.  Easy to operate, reduce labor costs.

4.In addition to the submersible slurry pump, also included a control cabinet, electric hoist, rubber hose, 500 m HDPE pipe and matching floaters.

 According to the requirements from our customer, our engineer select the submersible sludge pump with double cable lines for the customer. One cable line provide the electric power to the pump, the other cable line is control line, the function of the control line is to protect the motor from water ingress and overload. So double cable lines submersible slurry pump can guarantee the safety of operators and equipment.

The submersible sludge pump operation is simple, the noise is small, and the construction environment is clean and tidy. We recommend model is ZJQ400-25-75. We also showed our customers the operation video used in the field. We provided the main components of the submersible slurry pump dredger and the customer welds the dredger body locally. We provided customer with drawings and designs for submersible slurry pump dredger body, and also provided technical support. Our customer was very satisfied with this submersible sludge pump type, he decided to bought 2 sets submersible slurry pump with Grouped equipment.

The Submersible Sludge Pump List of Customer Purchases is as follows.

No	Item	Goods Description	Quantity
1	submersible sludge pump	8 Inch Outlet diameter- 200mm Power supply- 400VAC, 3P3W,50Hz Flow- 400 m3/h Head-25 meters Power-75 kw Cable length 15 meters	2 sets

Tai’an OCEAN Pump Co., Ltd. specializes in the research and development, manufacturing and export of  submersible slurry pump, submersible sand pump, submersible dewatering pump and submersible dredge pump, sand dredgers, pipes, floaters and some other related products.

Our sand pump products are widely used in mining, metallurgy, coal washing, power plants, sewage water treatment, dredging, and chemical and petroleum industries. With the confidence of our clients at home and abroad, we are becoming one of the most important sand pump, slurry pump and sand dredger suppliers in China, and we have offered professional pump solutions and services to over 60 countries in the world. 

We would like to work and create a mutually brilliant future with you together!

OCEAN Pump has qualified professional engineers and technicians for your custom product design, fabrication and after-sale service. OEM and ODM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

8 inch Portable Dredging Platform Sent to Maldives

Small sand suction pump boat, also called small sand dredger, is a one-stop suction pump boat solution. Tai’an Ocean Pump Co.,Ltd. (referred to as OCEAN PUMP) has designed and manufactured small sand suction pump boat by improving domestic advanced portable sand dredger. Small sand suction pump boats are currently widely used in river sand suction, dredging, tailing treatment and other engineering projects.

As time goes on,  the small sand suction dredger has become a new business growth point for OCEAN PUMP. In December, 2018, OCEAN PUMP has got six orders about small sand suction pump boats. Through the cooperation of the welding workshop and the assembly workshop, we can delivery 4 sets of small sand suction pump boats before Feb. 2019, they are 1 set of 6 inch sand suction dredger, 1 set of 8 inch sand suction dredger and 2 set of 10 inch sand suction dredger.

6 inch Small Sand Suction Pump Boat Performance Parameters

Size(length * width * height)	6*2.5*0.75(m)
Flow	250m³/h
Lift	20m
Speed	1200rpm
Matching diesel engine	56kw/1500rpm
Dredging depth	5m
Discharge distance	150m

8 inch Small Sand Suction Pump Boat Performance Parameters

Size(length * width * height)	6*2.5*1(m)
Flow	400m³/h
Lift	20m
Speed	1200rpm
Matching diesel engine	90kw/1500rpm
Dredging depth	5m
Discharge distance	150m

10 inch Small Sand Suction Pump Boat Performance Parameters

Size(length * width * height)	6*4.5*1(m)
Flow	600m³/h
Lift	20m
Speed	1200rpm
Matching diesel engine	123kw/1500rpm
Dredging depth	5m
Discharge distance	150m

About OCEAN PUMP

OCEAN PUMP has dedicated on designing and producing portable sand pump, heavy duty sand pump, submersible slurry pump, sand dredger, submersible slurry pump dredger for about 20 years. OCEAN PUMP integrates independent research and development, equipment manufacturing, pre-sales and after-sales service. The business of OCEAN PUMP covers sand absorption and dredging projects. The products cover more than 500 specifications in 20 series, and the products are exported to 36 countries and regions. OCEAN PUMP has won the praise and trust of the majority of users with rich industry experience, excellent technology and considerate service.

Dredge Pump Sent to Nanyang for Reservoir Sand Pumping

OCEANPump has been dedicated to sand pump manufacturing and exporting in Shandong Province for over 20 years. After several decades research and development, we has formed a comprehensive sand pumping solution with various combinations and forms. Dredge pump is the widely used sand pump which is engineered and equipped on the sand dredger, our dredge pump is mainly divided into three types: horizontal dredge pump, vertical dredge pump and submersible slurry pump.

On December 16, 2018, a customer from Nanyang contacted OCEANPump sales department. He heard from his friend that our sand pump had the features of high quality, long life span and high cost performance. He hoped we customized a special solution for his reservoir sand suction project.

Working Conditions of Dredge Pump

1. The water depth is 4-5m, the sand layer depth is about 10m.
2. The discharge distance is 50m, there is no requirement about head.
3. The customer hasa diesel engine, 200hp, 2200rpm. He requires our engineers to choose a suitable sand suction pump.

Dredge Pump Model Selection Process

Considering that the diesel engine belongs to high-speed machine, through the sand sample research, our engineers recommended 10 inch portable dredge pump which was connected with the diesel engine by belt.Portable dredge pump has the advantages of light weight, easy operation and high efficiency, so this kind of sand pump machine is suitable for small sand pumping projects.

Dredge Pump Performance Parameters

Dredge pump model	10 PS
Flow	600m³/h
Lift	20m
Speed	1200rpm
Matching diesel engine	200hp

After determining the simple sand pump model, the sales department of Ocean Pump briefed the customer on the connection method between the sand pump and the diesel engine, and showed the operation process of the portable sand dredger produced by Ocean Pump. The customer actually understood our  dredge pump and signed the purchase contract.

Regardless of any enterprise, quality is the premise, and customer’s reputation is the way to survive.

Tai’an Ocean Pump Co., Ltd. (referred to as Ocean Pump) is a leading domestic manufacturer of sand pump, submersible slurry pump, slurry pump, mud pump, sediment pump, heavy duty sand pump, dredging pump and sand dredger. The company integrates independent research and development, equipment manufacturing, pre-sales and after-sales service. The company’s business covers a full range of sand-absorbing and dredging projects. The products cover more than 500 specifications in 20 series, and the products are exported to 36 countries and regions. Tai’an Pump is well-known at home and abroad. As a representative of Tai’an Pump, Ocean Pump has won the praise and trust of customers with rich industry experience, professional technology and excellent service.