Horizontal Slurry Pumps Buying Guide

horizontal slurry pumps is one of the core offerings of Shijiazhuang Minerals Equipment Co., Ltd.. It is reliable, durable and functional. It is designed is developed by the experienced design team who know the current market demand. It is manufactured by skillful works that are familiar with the production process and techniques. It is tested by advanced testing equipment and strict QC team.

CNSME PUMP has a high popularity among the domestic and international brands. The products under the brand are repeatedly purchased as they are cost-effective and stable in performance. The repurchase rate remains high, leaving a good impression on potential customers. After experiencing our service, the customers return positive comments, which in turn promote ranking of the products. They prove to have much more developing potentials in the market.

We provide excellent service and reliability on which our customers rely through CNSME. The MOQ of horizontal slurry pumps can be flexibly adjusted according to customers' requirements.

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Slurry pump production process detailed explanation

First, raw material procurement

The first step in slurry pump production is raw material procurement. The choice of raw materials in the pump industry is wide, and the common materials are cast iron, stainless steel, plastic and so on. In the procurement process, we need to strictly control the quality of raw materials to ensure that they meet production standards and quality requirements.

Second, processing and manufacturing

After the procurement of raw materials is completed, it enters the processing and manufacturing link. The production of pumps needs to be manufactured and processed according to different models and specifications. Among them, the processing content includes forging, stamping, casting, welding and so on. In the process of processing and manufacturing, it is necessary to be equipped with appropriate equipment and technical personnel to ensure product quality and production efficiency.

Third, test the quality

Slurry pump packaging

The finished pump needs to be quality tested to ensure that the product quality meets the design and standard requirements. The test of the pump includes static water leakage test, water pressure test, noise test and other links to ensure that the performance and quality of the pump meet the standard.

Fourth, assembly and packaging

Slurry pump production to this stage must be assembled and packaged. In this link, different types of pumps need to be distributed and assembled, and packaged in strict accordance with packaging standards. Pump packaging needs to adopt standard materials and methods to ensure the safety and integrity of the product.

Five. Delivery from warehouse

After the production of the pump is complete, the final delivery process can be carried out. In this link, it is necessary to deliver goods out of the warehouse in strict accordance with the order requirements, and track the product transportation process to ensure the safe delivery of products to customers.

Six. After-sales service

The after-sales service of the slurry pump is also a very important part of the entire production process. In the after-sales service, it is necessary to deal with the problems of customer feedback in a timely manner, and provide professional technical support and services to ensure the effective use of products and improve customer satisfaction. 【 Conclusion 】 This paper gives a comprehensive and systematic introduction to the production process of slurry pump, including raw material procurement, processing and manufacturing, quality testing, assembly and packaging, delivery and after-sales service. Only in each link to achieve strict control, in order to produce high-quality pump products.

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Reasons why slurry pumps vibrate and solutions to handle

Reason I: Impeller unbalanced

Wear and clogging of the impeller will cause the uneven distribution of the impeller mass and then lead to vibration. Impellers should be checked and maintained at a regular time basis.

Reason II: Unreasonable assembly of bearings

Re-assemble the bearings onto the shaft, or change the bearings.

Reason III: Inadequate lubricants for the bearings

Too much or too little of the grease or oil or contaminated grease or oil will cause the short life of the bearings. Take out the bearings and use them again only after cleaned up.

Reason IV: Asymmetry or non-parallel of the motor shaft and the pump shaft

Adjust the motor shaft or the pump shaft, replace with a new shaft if the current one is deformed or bent.

Reason V: Uneven feeding of materials

Uneven feeding of materials or big solids entering will cause unstable flow inside the pump chamber, keep an even slurry feeding and protect large solids from entering into the pump.

Reason VI: Cavitation

Too low pressure inside the pump will generate bubbles and when the bubbles break, there will be vibration and noise. Raise the pump suction liquid level to increase static head.

Reason VII: Loose of the foundation or spare parts or incorrect installation

Loosened foundation or internal or external pump parts will cause vibration during pump operation. Check and maintain the slurry pump regularly.

Bearing Lubrication for Slurry Pumps

Proper lubrication reduces friction, prevents corrosion, and extends bearing life. Methods include:
1. Drip Lubrication: For low/mid-speed bearings (<5 m/s). Adjust drip rate (3–8 sec/drop). Over-lubrication causes overheating.
2. Manual Lubrication: For light loads or intermittent use. Use filtered covers to prevent contamination.
3. Oil Ring Lubrication: For horizontal shafts (>50 mm diameter). Use one ring for width/diameter ratio <2.
4. Oil Bath Lubrication: Immerse bearings partially; oil level below the lowest roller center.
5. Circulating Oil: For high-speed bearings. Filtered oil cools and lubricates via a pump system.
6. Spray Lubrication: For high-speed/high-temperature bearings. Compressed air delivers oil mist while cooling.
Key Notes:
Maintain seal water pressure and adjust packing to prevent leaks.
Keep bearings clean; operating temp ≤ 65°C (max 75°C).
Ensure motor-pump alignment and inspect coupling elastomers regularly.
Monitor wear-prone parts and replace them promptly.
Choose lubrication methods based on speed, load, and environment to optimize pump performance and longevity.

Ways to change pumps’characteristic curves

Regulate speed

Figure a is the characteristic curve of a pump at different speeds ((n₁> n₂> n₃), device characteristic curve R and similar parabola H-KQ²^.We will know from the figure that if we don’t change the device characteristic curve, the working point after speed change may deviate from the best efficiency working point. Only when the device characteristic curve is as close as possible to the similar parabola after speed changing, will the working point after speed changing keep high efficiency. Speed regulation is suitable for big power pumps and applications where head changes dramatically.

Regulate through impeller trimming

Impeller diameter trimming will only make the characteristic curve move downwards, figure b shows the working points of different impeller diameters, of which the situation is similar to that of the speed regulation.

Regulate through changing impeller vane angle

Changing impeller vane angle is suitable for axial or mixed flow pumps. Impeller vanes of axial and mixed flow pumps can be regulated. Usually, when the vane angle is not changed much, max efficiency under each angle changes little. Plus, for axial flow pumps, when the impeller vane angel changes, the pump’s head will not change much, but the flowrate will change a lot. For mixed flow pumps, head and flowrate will change dramatically after the impeller vane angle changes.

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we welcome custom designs and ideas and is able to cater to the specific requirements. for more information, please visit the website or contact us directly with questions or inquiries.