In numerous engineering fields, including mining, geological drilling, transportation infrastructure, water conservancy and hydropower, bridge construction, and high-rise building foundation reinforcement, the quality and efficiency of grouting operations directly impact the overall stability and safety of the project. Henan Wode Heavy Industry Co., Ltd., with its deep expertise in grouting equipment manufacturing, has customized the HWGP440/50PI-22E high-pressure compact jet grout pump for a Singaporean client, providing reliable and efficient grouting equipment support for their project.

Core Advantages of the compact jet grout pump  

The HWGP440/50PI-22E high-pressure compact jet grout pump is a horizontal three-cylinder reciprocating single-acting piston pump. Equipped with a 22kW motor, it connects to a gearbox via belt drive and utilizes a reliable frequency converter to achieve stepless speed regulation, ensuring stable power output and significant energy-saving advantages. The gearbox employs a helical gear transmission design, ensuring smooth, safe, and reliable operation. Simultaneously, the innovative integrated crankcase and gearbox structure significantly improves equipment reliability and extends service life, while also effectively reducing equipment size and overall weight. Combined with excellent disassembly, this facilitates easier equipment movement and on-site deployment.



The jet grout high pressure pump 's grouting system is meticulously designed, equipped with three independent water tanks. All three cylinders share a common suction and discharge chamber, greatly improving grouting efficiency. The grout injection pump's piston is made of cup-shaped nylon self-sealing polyurethane rubber, offering wear and corrosion resistance and significantly extending the service life of vulnerable parts. Five dustproof seals at the tie rod effectively prevent hydraulic slurry from entering the power end. Combined with a lubricating oil filter, this ensures comprehensive cleanliness of internal components, reducing maintenance costs.

At the control system level, the compact jet grout pump incorporates advanced artificial intelligence technology, enabling precise display and intelligent control of pressure values. It also features instantaneous flow rate display and flow accumulation statistics, providing intuitive and convenient operation. The compact jet grout pump is equipped with an overflow valve safety protection device that automatically opens to release pressure when the system pressure exceeds the allowable range, simultaneously stopping the working cylinder and eliminating the risks of high-pressure operation at the source.

Furthermore, the compact jet grout pump frame can be separated from the base, and key parts are equipped with maintenance doors. Combined with a louvered heat dissipation design, this makes daily maintenance and troubleshooting more efficient.

Main technical parameters of the compact jet grout pump

Specification :
Mode	HWGP440/50PI-22E Compact Jet Grout Pump
Modality	Horizontal three-cylinder reciprocating single-action piston pump
Cylinder diameter (mm)		100	Cylinder stroke (mm)	110
Power (Kw)		22	Pump speed (r/min)	214
Max. Output (L/min)		440	Max. Pressure (MPa)	5
Inlet  diameter (mm)		89	Outlet  diameter (mm)	DN40
Size(L×W×H) (mm), Weight (Kg)			2050*1370*1310, 1365
Data: 1. All data are tested by water.      2. We can customize products according to your requirements.

Typical application cases of the compact jet grout pump

The HWGP440/50PI-22E high-pressure compact jet grout pump, with its excellent performance, has been successfully applied in several key projects, verifying its reliability and applicability under complex working conditions.

In the Singapore highway expansion project, some sections had the risk of foundation settlement, requiring foundation reinforcement through high-pressure grouting. The HWGP440/50PI-22E jet grout high pressure pump, with its high flow rate of 440L/min, efficiently completed grouting work of 28,000 m³. The equipment's intelligent pressure control system ensured uniform grout diffusion, effectively improving the foundation bearing capacity. During the project construction, the compact jet grout pump operated continuously without failure, improving construction efficiency by 30% and shortening the construction period by 15 days compared to traditional equipment, earning high praise from the construction team.

Company Strength and Sincere Invitation

Henan Wode Heavy Industry Co., Ltd., as a professional grout injection pump manufacturer, has always regarded technological innovation and manufacturing high-quality products as its core competitiveness. Our company has standardized production plants, advanced processing equipment, and a comprehensive testing system. From raw material procurement and component processing to complete machine assembly and performance testing, every process strictly follows industry standards and quality control procedures to ensure that every compact jet grout pump leaving the factory has stable and reliable performance.

To meet the personalized needs of different customers, our company can provide customized product solutions, flexibly adjusting equipment parameters and functional configurations to meet the operational requirements of special engineering scenarios. With high-quality products and attentive service, our grouting equipment has been widely used in many key engineering fields around the world, winning high recognition from the market and customers.



To give you a more intuitive understanding of our production capabilities, product technology, and quality control system, we sincerely invite you to visit our factory. We will arrange for a professional engineer to provide you with a detailed introduction to the production process, technological advantages, and product application cases, and offer on-site trial operation services.

If you are also looking for compact jet grout pumps, grouting mixers, or grouting plants, please leave a message. We look forward to communicating with you face-to-face!