LaiZhou City Sanyi Construction Machinery Co., Ltd. has launched its brand-new official website—welcome new and existing customers to visit!

LaiZhou SanYi Engineering Machinery Co., Ltd., located on the picturesque and fertile shores of Bohai Sea (LaiZhou Bay), enjoys a superb geographical setting—just one kilometer from the sea. The company is a specialized manufacturer dedicated to developing and producing a wide range of high- and low-pressure piston pumps, as well as advanced high-pressure jet grouting equipment.

2025-10-24

The company can provide end-to-end services, from design and production to installation, tailored to meet customer needs.

Our factory boasts advanced technological capabilities, sophisticated processing equipment, and comprehensive testing methods, ensuring top-notch product quality. High-pressure plunger pumps are available in two types: high-pressure clear water pumps and high-pressure slurry pumps, widely used in applications such as foundation treatment projects, high-pressure water jet cleaning for rust removal, petrochemicals, and hydraulic & hydroelectric power industries.

2025-09-30

Introduction to High-Pressure Mud Pumps

High-pressure mud pump—professional, durable, highly reliable, with few wear parts and easy maintenance; suitable for conveying media such as cement slurry, drilling mud, and clean water.

2025-09-22

Introduction to the ZB2 Three-Cylinder Mud Pump

The ZB2 three-cylinder mud pump is economical, lightweight, durable, and easy to maintain; it is designed to handle media such as cement mortar (with particles up to 3mm in size), clay mortar, lime mortar, clean water, cement slurry, and general mud.

2025-08-19

Infrastructure Development: The "Invisible Guardian" of a Solid Foundation

In highway construction on soft soil foundations, high-pressure injection of cement slurry to form piles can significantly enhance the foundation's load-bearing capacity and prevent settlement. Meanwhile, in the construction of cross-sea bridges, grouting pumps are used for waterproofing the bridge pier foundations—by filling gaps in the seabed rock layers, they effectively block seawater from eroding the structure.

2025-07-22

Underground Space Development: The Supporting Force Behind Cities "Growing Downward"

The grouting pump serves a dual purpose in these types of projects: first, it reinforces the surrounding soil and rock with high-pressure grouting to prevent collapse caused by excavation; second, it uses chemical grouts to fill construction joints, effectively blocking groundwater infiltration.

2025-07-15

Environmental Governance: The "Green Engine" of Ecological Restoration

In groundwater pollution remediation, injecting remediation agents can help pinpoint contamination sources and create isolation barriers. In the field of soil stabilization, grouting pumps inject eco-friendly stabilizers into loose soil layers, enhancing soil load-bearing capacity while minimizing dust pollution.

2025-05-14

Mining Engineering: The "Lifeline" of Safe Production

By injecting high-strength grout into the mined-out areas, an artificial false roof can be created to prevent roof collapse. Meanwhile, in gas drainage roadways, grouting pumps are used to fill fractures in the rock layers, significantly reducing the risk of gas leakage.

2025-03-11