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Grout injection pump for jet grouting

Grout injection pump for jet grouting is an ideal choice for high-performance cement jet grouting pumps at home and abroad. It is widely used in projects such as roads, bridges, municipal construction, tunnels, ports, dams, subways, underground buildings, etc. It has the characteristics of high pressure, high efficiency, compact structure, reliable performance, safe and convenient operation, etc.

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  Content   2025-06-16

LGP250/450-250D grout injection pump for jet grouting is a critical piece of equipment designed to handle the high-pressure delivery of grout (a mixture usually consisting of water and cement) into the ground. Jet grouting is a technique used in geotechnical engineering to improve soil properties, create barriers to groundwater flow, or underpin foundations.

Rotary jet grouting pump-slurry injection pump
Rotary jet grouting pump-slurry injection pump

The process involves injecting grout at very high pressures through small nozzles, often while simultaneously rotating and lifting the drill string, which results in the creation of columns of soil-cement mixtures.

Jet Pump Grout Systems
Jet Pump Grout Systems

Features of LGP250/450-250D Grout Injection Pumps for Jet Grouting:
1. High Pressure Capability:
– Essential for breaking up the soil and mixing it with grout. Pressures can range from 200bar to over 450bar depending on the application and soil conditions.
2. Flow Rate Control:
– Adjustable to match the specific requirements of the project. Flow rates typically vary from 30 L/min to 250 L/min.
3. Durability and Reliability:
– Must withstand abrasive materials and continuous operation. Components are often made from wear-resistant materials.
4. Compatibility with Various Grouts:
– Should be able to handle different types of grouts including those with additives like bentonite or microfine cements.
5. Drive System:
– Usually hydraulic or electric. Hydraulic systems are more common due to their ability to provide consistent pressure and smooth operation.
6. Integration with Monitoring Systems:
– Equipped with sensors for real-time monitoring of parameters such as pressure, flow rate, and volume injected. This allows for precise control and adjustment during the grouting process.

jet grouting equipment for drilling grouting
jet grouting equipment for drilling grouting
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