Hollow Grouting Rock Bolt System with Pressure Grouting up to Dozens of Kilograms for Radial and Slope Reinforcement
The Zhengde hollow anchor system integrates drilling and grouting functions in a single solution for superior rock and soil stabilization. This innovative system consists of five key components: hollow drill pipe, engineering plastic drill bit with slurry holes, grout stopper, backing plate, and nut.
Replaces traditional mortar anchors to eliminate incomplete grouting issues and ensure pressure grouting capability for superior project quality.
Provides simple, cost-effective stabilization of unstable slopes with convenient construction and remarkable results.
Enhances building foundation pit reinforcement with straightforward installation and pressure grouting to improve surrounding rock conditions.
The hollow anchor features a fully threaded rod body, anchor head, grout stopper, backing plate, and nut. Each component is engineered to maximize grouting efficiency, enabling mortar penetration under pressure up to dozens of kilograms into surrounding rock cracks.
- Dual-function design: serves as grouting pipe during installation and permanent anchor after grouting
- Eliminates mortar loss from grouting pipe removal in traditional methods
- Achieves full grouting with pressure capability for enhanced project quality
- Superior centering ensures complete mortar coverage along entire anchor length
- Complete corrosion protection for long-term structural support
- Simplified installation with pre-fabricated threads for easy backing plate and nut attachment
- Compatible with specialized grouting pumps and anchor-specific grouting technology
| Component | Material/Description |
|---|---|
| Drill Pipe | Hollow fully threaded rod body |
| Drill Bit | Engineering plastic with slurry holes and dust removal |
| Grout Stopper | Ensures proper grout containment and pressure maintenance |
| Pressure Capacity | Up to dozens of kilograms (subject to design specifications) |
Strict production and inspection according to standards
Market-based discounts and transparent pricing
Guaranteed fund protection for all customers
Comprehensive service and problem resolution
Shandong Zhengde Metal Manufacturing Co., Ltd. is an integrated enterprise specializing in metal products manufacturing and distribution. With five production bases across China and over 100 production lines, the company maintains ISO 9001 certification and operates multiple technical centers and nationally recognized laboratories.
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