Sangroove (Jiangsu) Machinery Co., Ltd. is one of the most reliable manufacturers and suppliers of grout sleeve in China. If you're going to wholesale cheap grout sleeve made in China, welcome to get pricelist from our factory. All customized products are with high quality and low price.
Product Overview
The grout sleeve, also known as a grouting sleeve or rebar grouting sleeve, is a key component used to connect reinforcing bars in precast concrete structures. By combining a sleeve body, reinforcing bars, and high-strength grouting material, it forms a mechanical connection designed to transfer forces between precast concrete elements.
Grout sleeves are commonly used in prefabricated buildings and infrastructure projects where reliable rebar connections and efficient on-site assembly are required. Depending on the structural design, connection requirements, and installation method, full-grouted and half-grouted sleeve configurations may be selected.
With over 40 years of casting manufacturing experience, Sangroove provides customized grouting sleeve components in QT500 and QT600 ductile iron, with cast steel and alloy steel available as optional materials subject to design requirements. We support drawing-based customization, precision machining, thread processing, and dimensional inspection to help meet project-specific connection requirements.
Manufacturing Process
Design and Tooling Development: Review customer drawings, dimensions, connection design, and production requirements.
Casting Process Selection: Select a suitable casting method based on the sleeve design, material, and required production volume.
Melting and Material Control: Use induction furnace melting and composition control to support material consistency.
Casting and Heat Treatment: Produce sleeve bodies and apply specified heat treatment where required.
CNC Precision Machining: Machine critical dimensions and connection features according to approved drawings.
Thread Processing: Manufacture threaded sections where required by the sleeve design.
Surface Treatment: Apply anti-rust oil, phosphating, or other agreed corrosion-protection treatments.
Quality Inspection: Check dimensions, material properties, and other specified quality requirements before delivery.
Technical Specifications
| Specification | Details |
|---|---|
| Product Name | Grout Sleeve / Grouting Sleeve |
| Main Materials | QT500 / QT600 Ductile Iron |
| Optional Materials | Cast Steel, Alloy Steel |
| Applicable Rebar Diameter | Φ12–Φ40 mm |
| Tensile Strength | ≥500 MPa* |
| Yield Strength | ≥380 MPa* |
| Elongation | ≥5%* |
| Connection Type | Full-Grouted / Half-Grouted Connection |
| Surface Treatment | Anti-Rust Oil, Phosphating, or Other Specified Corrosion Protection |
| Referenced Standards | JG/T 398, JGJ 355, or Equivalent Requirements |
| Customization | Available Based on Drawings and Project Requirements |
Product Advantages
Designed for Precast Rebar Connections: Supports the connection of reinforcing bars between precast concrete components using an approved grouting system.
Multiple Material Options: QT500 and QT600 ductile iron are available, with steel alternatives subject to design requirements.
Precision-Machined Features: CNC machining and thread processing help achieve the dimensions required for assembly.
Full and Half-Grouted Configurations: Different sleeve designs can be considered according to the structural connection method.
Controlled Manufacturing: Casting, machining, and inspection processes support consistent production quality.
Drawing-Based Customization: Dimensions, material selection, and manufacturing details can be reviewed against project specifications.
Customer Benefits
More Efficient Precast Assembly: Grout sleeve connections can support streamlined on-site installation when integrated into a properly designed construction system.
Reduced On-Site Welding Requirements: Grouted mechanical connections can reduce the need for welding at the connection point where the approved design permits.
Consistent Component Fit: Drawing-based manufacturing and dimensional inspection help support installation compatibility.
Flexible Project Specifications: Material and configuration options allow customers to discuss solutions for different precast concrete applications.
Simplified Supplier Coordination: Casting, machining, thread processing, and inspection can be coordinated within one manufacturing workflow.
Support for Project Quality Control: Specified material and dimensional checks help customers evaluate products against their technical requirements.
Why Choose Sangroove
40+ Years of Manufacturing Experience: Extensive experience in metal casting and customized industrial components.
Integrated Production Capabilities: Support from tooling development and casting through CNC machining and final inspection.
Material and Process Flexibility: Manufacturing routes can be reviewed according to drawings, material requirements, and order quantities.
Quality Inspection Equipment: Available equipment includes a spectrometer, coordinate measuring machine (CMM), metallographic microscope, universal testing machine, and non-destructive testing systems.
Quality Management Certifications: The company lists IATF 16949, ISO 9001, ISO 14001, ISO 45001, ISO 10012, and ISO 50001 certifications.
Customized Manufacturing Support: Technical requirements can be reviewed before production to help align the product with the intended application.
Applications
Prefabricated Residential Buildings: Rebar connections between precast wall panels, columns, and other structural elements where specified by the design.
Commercial and High-Rise Buildings: Structural connections in precast concrete building systems.
Metro and Rail Transit Projects: Precast concrete structures used in underground and transit infrastructure.
Bridge Engineering: Selected precast bridge components requiring designed reinforcement connections.
Municipal Infrastructure: Precast concrete elements used in public infrastructure projects.
Water Conservancy Projects: Suitable precast concrete applications where the approved structural design specifies grouted rebar sleeves.
FAQ
Q: 1. What is a grout sleeve used for?
A: A grout sleeve connects reinforcing bars in precast concrete structures. Grout is introduced into the designed connection space to form part of the engineered rebar connection system.
Q: 2. What is the difference between a full-grouted and a half-grouted sleeve?
A: The two configurations use different connection arrangements. The appropriate type depends on how the reinforcing bars are connected to the sleeve and on the structural design. Confirm the required configuration with your project engineer.
Q: 3. What materials are available for grout sleeves?
A: The listed materials are QT500 and QT600 ductile iron, with cast steel and alloy steel as optional materials subject to the application and design requirements.
Q: 4. What rebar diameters can your grout sleeves accommodate?
A: The listed range is Φ12–Φ40 mm. Confirm the exact rebar diameter, sleeve configuration, and dimensional requirements when requesting a quotation.
Q: 5. Can you manufacture customized grouting sleeves?
A: Yes. Customized manufacturing can be discussed based on technical drawings, dimensions, material specifications, thread details, and project requirements.
Q: 6. What manufacturing processes are available?
A: Depending on the design, production may include casting, heat treatment where specified, CNC machining, thread processing, surface treatment, and dimensional inspection.
Q: 7. Which standards do your grout sleeves meet?
A: JG/T 398 and JGJ 355 are listed as reference standards, or equivalent requirements may be considered. The applicable standard and compliance evidence should be confirmed for the specific product and project.
Q: 8. What information is needed for a quotation?
A: Please provide the product drawing, rebar diameter, sleeve type, material requirements, applicable standard, required testing or inspection documents, estimated order quantity, and delivery destination.
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