In tunnel construction and maintenance, ensuring a long-lasting, water-tight seal is crucial for structural integrity and longevity. The joint injection needle offers an innovative solution for sealing joints in tunnels, particularly in segmental and expansion joints. This advanced tool simplifies the sealing process, eliminating the need for extensive drilling, and provides a permanent, reliable seal.
Segment joints, especially in tunnel construction, are prone to leaks over time due to the pressures and environmental conditions. The joint injection needle effectively addresses these challenges by being screwed into the segment seal via the joint with a cordless screwdriver. This method allows the injection of acrylate or polyurethane-based fillers directly into the joint. While some cases may require drilling due to the joint’s size, a minimal 18 mm hole ensures easy installation. Once inserted, the needle remains within the joint, delivering a permanent, durable seal.
The innovative use of the joint grouting injection needle extends to sealing leaking expansion joints. This process involves inserting the needle into the expansion joint through the sealing element using a cordless screwdriver. Once in place, a flat-head gel nipple and injection pipe are used to deliver the filler material to the side of the joint facing the water. After the injection, the needle stays in the joint, providing a robust, water pressure-tight seal, while the injection pipe is removed.
The joint grouting injection needle is compatible with high-quality injection materials such as acrylate gels and polyurethane-based resins. These materials ensure long-term durability and flexibility in tunnel joint sealing, helping to accommodate movements within the structure while maintaining a waterproof barrier. The selection of these materials provides added assurance for handling challenging conditions and environmental factors that can impact the longevity of the seal.
One of the key advantages of the joint injection needle is its ability to provide a clean and effective seal without material loss. The lateral outlet openings of the needle remain clear, ensuring a free flow of the filler material. Additionally, the needle becomes encapsulated by the surrounding strong material, creating a secure and permanent seal. This reduces the need for complex, time-consuming procedures, making the entire process faster and more efficient
The joint injection needle is particularly suited for use in sealing joints in tunnels, whether they are segmental or expansion joints. In both cases, the process is simplified by eliminating the need for significant drilling or additional complex steps. The cordless screwdriver allows for quick installation, and the needle remains in place after injection, ensuring that the sealed joint can withstand the pressures and challenges typically faced in tunnel environments. Its use in expansion joints is particularly noteworthy, as it offers a robust solution for high-pressure water seals.
The joint grouting injection needle represents a significant advancement in tunnel sealing technology. By simplifying the injection process and providing a permanent seal, it helps ensure the structural integrity and waterproofing of segmental and expansion joints in tunnels. The innovative design and use of durable materials like acrylate gels and polyurethane resins make it an ideal choice for engineers and contractors looking for a reliable, efficient, and long-lasting solution for tunnel joint sealing
Injection Needle
External Thread M10x1,
Diameter: 110mm
Outlet openings lateral diameter 2.5mm
Injection Pipe with Valve Opner
Internal Thread M10x1, external Thread M13x1
Diameter: 13mm, Length:305mm
Button Head Nipple
Internal Thread M13x1
As an original manufacturer with over 15 years of experience, we specialize in manufacturing injection packers for applications in concrete structures, geotechnical applications, tunnel and mining application, dam and reservoir repair, Void Filling and Cavity Grouting, Groundwater Control etc..
We are a pioneer leader in injection packer filed and waterproofing solutions. For over 15 years, we have been at the forefront of custom injection packer development, delivering creative solutions in a wide range of formats. Our strength lies in designing and manufacturing injection packers that are customized to meet your specific needs.
As the world’s leading injection packers supplier, our factory supply a wide range of injection packers, including aluminum injection packers, steel injection packers, brass injection packers, Bang-In ports, surface injection packers, to clients around the world, we also can custom injection packers as per your drawings or sample. Our injection packer are used in various industry applications, including waterproofing industry, crack repair, soil stabilization, dam, bridge, and in the fields of water conservancy and tunnel, municipal, industrial and civil construction.
As an injection packers factory, we offer competitively priced products with reliable quality, supported by a comprehensive after-sales warranty. Whether you’re a distributor, contractor, or end-user, we have the perfect injection packers to suit your needs, ensuring that your business benefits from our customized solutions and dependable service.
Cutting the aluminum tube to the suitable length as per requirements
Washing each aluminum tube after finishing relative procedure
Making thread for each aluminum tube to assemble fittings
Producing grease nipples for the body of the packers
Inspecting each parts and finishing injection packers assembling
Pack injection packers as per clients requirements
Here is the injection packers normal package, you can chose poly bag, carton box for inner pack, Gift Box or Brown Carton for outer package.
Below you will find where we should use the injectioin packers
We use injection packers to inject hydrophilic or hydrophobic polyurethane resins into cracks in concrete structures to prevent water from entering
We supply injection packers for injecting specialized materials to stop leaks, seal cracks, and reinforce aging infrastructure in dams and reservoirs
In tunnels, mines, injection packers are used for grouting to control water ingress, stabilize the ground, and seal fractures in rock masses
Injection packers are used to inject foam or grout materials to fill voids and cavities behind walls, under floors to restore support and prevent further degradation
Soil lances are used in geotechnical applications to inject grouts or chemical stabilizers into the ground to increase its load-bearing capacity or to reduce settlement in weak or unstable soils.
Our injection packer are ideal for well sealing and groundwater management projects to inject sealing agents and stop unwanted water flow through boreholes or rock formations
Here are 10 top frequently asked questions about injection packers manufacturing
Injection packers are devices used to inject materials such as grout, resins, or chemicals into concrete or other substrates. They are commonly used in construction, waterproofing, and repair applications to fill cracks, voids, or joints.
Our injection packers are made from high-quality materials such as steel, aluminum, and plastic, ensuring durability and performance in various conditions.
The minimum order quantity varies depending on the type of packer and customization requirements. Please contact our sales team for detailed information.
The lead time for orders depends on the order size and customization requirements. Typically, our standard injection packers are ready for shipment within 2-4 weeks. Custom orders may take longer.
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Yes, we ship our products worldwide. We work with reliable logistics partners to ensure timely and safe delivery of your orders.
We manufacture various types of injection packers, including mechanical packers, surface packers, and steel packers. Each type is designed for specific applications and material compatibility.
Yes, we offer customization options for our injection packers to meet the specific needs of your project. This includes modifications in size, material, and design features
Selecting the right injection packer depends on factors such as the type of material being injected, the substrate, pressure requirements, and the specific application. Our technical team can assist you in choosing the most suitable packer for your project.
We offer flexible payment terms, including T/T (Telegraphic Transfer), L/C (Letter of Credit), and other options depending on the order size and customer requirements.
Yes, we can provide samples of our injection packers for evaluation before you place a larger order. Please contact our sales team to arrange for sample delivery.
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