sand dredge pump for sale continues to be on the best seller list. Shijiazhuang Minerals Equipment Co., Ltd. knows clearly the importance of adherence to 'Quality Comes First', thus a team of professional technicians is introduced to ensure that the manufacturing sticks to international standards. Besides, the materials of the product are well selected, and are imported from different countries.
CNSME PUMP products reflect the core values of the brand. Investigations are carried out to promote products in specific sectors, bringing potential customers and boosting the sales volume. As customer's demands are clearly classified, the products are bound to receive increasing praises from the market. The reputation is therefore improved by accumulated achievements in product sales.
CNSME provides patient and professional personalized service for each customer. To ensure the goods arrived safely and completely, we have been working with reliable freight forwarders to deliver the best shipping. In addition, a Customer Service Center consisting of staff who master professional industry knowledge has been established to better serve customers. The customized service referring to customizing the styles and specifications of products including sand dredge pump for sale should also not be ignored.
At present, the lubrication methods of slurry pump bearings are grease lubrication and thin oil lubrication. The advantages and disadvantages of these two lubrication methods are explained as follows:
Grease lubrication is a lubrication method in which grease is filled in the bearings. This method was used when the WARMAN pump was introduced. This lubrication method has been verified by the market for decades and has been operating well. It has been recognized by most slurry pump users. .
Thin oil lubrication is a lubrication method where the bearing is immersed in the oil bath to lubricate the bottom of the oil bath. In addition to some slurry pumps, this lubrication method is also used for some sewage pumps and chemical pumps. It is also a very mature lubrication method in the pump industry.
Comparison of the advantages & disadvantages of the two lubrication methods
Vertical Slurry Pump Model: SV/300T with Direct Discharge
Q: 1200m3/h, H: 15m, Speed: 600rpm
Flange: DN300, PN10
1. HH type slurry pump. This is a high head slurry pump developed according to the AH series. Its highest head can reach about 100 meters. Double pump shell structure, the overflow parts are made of high chrome alloy.
2. ZJ type slurry pump. This series of slurry pump is to adjust the head by changing the size of the impeller. Its highest head can also reach more than 100 meters in some models.
3. ZGB series slurry pump. This series of slurry pump is a high efficiency, large flow, high head slurry pump. And if the head of a single pump can not reach, the series of slurry pumps can also be used in series to achieve the required head.
These three series of slurry pumps are the high head slurry pumps that CNSME has organized for you. Hope to help you.
If the production process specifies minimum, normal, and maximum flow rates, use the maximum flow rate as the benchmark.
If only the normal flow rate is given, allocate a margin:
For high-flow, low-head pumps (ns > 100), allow a 5% margin.
For low-flow, high-head pumps (ns < 50), allow 10%.
For pumps with 50 ≤ ns ≤ 100, use a 5% margin. Increase to 10% for poor-quality pumps or harsh conditions.
Convert weight-based flow rates to volumetric flow rates if necessary.
Accurate flow rate determination improves operational efficiency.
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.
Our professional slurry pump team is always At your services.
Contact: Ms.Serena Zhang
Tel: +86 13333119820
Email: sales@cnsmepump.com
WhatsApp: +86 13333119820
Add: 260# West Huaian Road, Shijiazhuang, Hebei, China. 050051.