20MnSi High Tensile Self-Drilling Hollow Grouting Rock Bolt for Mining and Industrial Support Applications
The 20MnSi hollow grouting rock bolt is a high-tensile strength self-drilling anchor system designed for mining and industrial applications. This innovative system combines drilling and anchoring functions in a single unit, providing superior support for radial reinforcement, slope stabilization, and foundation pit support.
- Hollow drill pipe with full threading
- Engineering plastic drill bit with slurry holes
- Grout stopper for controlled mortar distribution
- Backing plate and nut assembly
Replaces traditional mortar anchors, ensuring complete grouting and pressure grouting capabilities for superior project quality.
Simple process with low construction costs, providing quick installation and remarkable stabilization effects for unstable slopes.
Enhances building foundation pit conditions through pressure grouting and improved surrounding rock stabilization.
- Combined anchor and grouting pipe functionality eliminates mortar loss
- Pressure grouting capability ensures complete mortar distribution
- Superior centering design provides full-length mortar coverage
- Easy installation with pre-fabricated threads and standard components
- Compatible with specialized grouting pumps and anchor rod technology
| Material Grade | Processing Method | Application Industries |
|---|---|---|
| 20MnSi High Tensile Steel | Cold/Hot Rolled, Cold-Drawn | Mining, Machinery, Chemical Industry |
Strict production and inspection standards ensure consistent quality. Competitive pricing based on real market conditions with comprehensive after-sales support and long-term cooperation benefits.
Shandong Zhengde Metal Manufacturing Co., Ltd. operates multiple production bases with over 100 production lines, 4 nationally recognized laboratories, and comprehensive quality certifications including ISO 9001, MTC, SGS, and BV.
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