Product Overview
The Grouting Sleeve is a core connecting component in precast concrete rebar connection systems.
It enables reliable force transfer between reinforcing bars through high-strength grouting material, ensuring that the connection zone achieves mechanical performance equivalent to cast-in-place concrete structures.
Grouting sleeves are widely used in prefabricated residential buildings, commercial buildings, bridges, metro tunnels, and large infrastructure projects.
With over 40 years of precision casting experience, Sangroove (Jiangsu) Machinery Co., Ltd. specializes in manufacturing full grouting sleeves, half grouting sleeves, and customized connection components. Made from high-strength ductile iron and quality steel materials, we provide safe and reliable connection solutions for the global prefabricated construction industry.
Manufacturing Process
- Design & Tooling Development
- Lost Foam Casting
- Shell Mold Casting
- Resin Sand Casting
- Green Sand Casting
- Induction Furnace Melting & Composition Control
- Heat Treatment
- CNC Precision Machining
- Thread Processing & Dimensional Inspection
- Surface Anti-Corrosion Treatment
- Full Dimensional Inspection & Mechanical Property Testing
Technical Specifications
| Product Name | Grouting Sleeve |
| Material | QT500 / QT600 Ductile Iron |
| Optional Materials | Cast Steel, Alloy Steel |
| 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, Corrosion Protection |
| Standards | JG/T 398, JGJ 355 or equivalent |
Product Advantages
• High-Strength Connection Performance ensuring force transfer equal to base steel strength
• Excellent Seismic Resistance and Ductility for structural safety
• High Dimensional Accuracy through precision molding and CNC machining
• Fast Installation without welding, improving construction efficiency
• Stable Quality through full-process inspection control
Customer Benefits
• Improved construction efficiency through prefabricated assembly
• Reduced labor and welding costs on site
• Enhanced structural safety and seismic performance
• Shortened project construction cycle through standardized installation
Why Choose Sangroove
40+ Years of Casting Manufacturing Experience
Complete Production System from Tooling to Final Inspection
Certified to IATF 16949, ISO 9001, ISO 14001, ISO 45001, ISO 10012 and ISO 50001
Advanced Testing Equipment including Spectrometer, CMM, Metallographic Microscope, Universal Testing Machine and NDT systems
Strong Production Capacity exceeding 100,000 tons annually
Applications
• Prefabricated Residential Buildings
• Commercial Complexes
• High-Rise Buildings
• Metro and Rail Transit Projects
• Bridge Engineering
• Water Conservancy Projects
• Municipal Infrastructure Projects