Self-Drilling Hollow Bar Anchor Bolts 25-200mm Diameter for Grouting and Rock Anchoring
Price:
$18.00/pieces 100-499 pieces
MOQ:
100 pieces
Delivery Time:
Negotiable
Brand:
Kelleg
Product Description
Self-Drilling Hollow Bar Anchor Bolts
Self-drilling anchor bolts provide an efficient bolting solution for challenging ground conditions including sand, gravel, silt, clay, and soft to medium fractured rock formations.
Complete System Components
- Hollow anchor bolt
- Anchor nut and plate
- Anchor coupler
- Drill bit
- Centralizer
The system operates by drilling directly into collapsing soil or loose rock using the hollow bar and drill bit, then injecting grout through the hollow bar to stabilize the surrounding cavity.
R-Thread Hollow Anchor Bar Specifications
| Size | Outer Diameter (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) |
|---|---|---|---|---|
| SER25N | 25 | 200 | 150 | 2.35 |
| SSR32L | 32 | 210 | 160 | 2.83 |
| SSR38N | 38 | 500 | 400 | 5.50 |
| SER51N | 51 | 800 | 630 | 8.20 |
T-Thread Hollow Anchor Bar Specifications
| Size | Outer Diameter (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/m) |
|---|---|---|---|---|
| SST30L | 30 | 220 | 180 | 2.9 |
| SET40S | 40 | 660 | 525 | 6.8 |
| SST52N | 52 | 929 | 730 | 10.2 |
| SET73L | 73 | 1160 | 970 | 13.2 |
| SET76S | 76 | 1900 | 1500 | 19.7 |
| SET103N | 103 | 2270 | 1800 | 23.5 |
| SET111N | 111 | 3650 | 2750 | 34.5 |
| SET127L | 127 | 2400 | 1810 | 30.5 |
| SET130S | 130 | 7940 | 5250 | 78 |
| SET150S | 150 | 8400 | 5600 | 108 |
| SET200S | 200 | 14230 | 9500 | 183 |
About Kelleg
Kelleg is a market-oriented enterprise integrating R&D, design, procurement, sales, and customer service. We specialize in geotechnical anchoring solutions and provide comprehensive services including system solutions, product supply, and technical support.
Our professional teams provide customers with pre-sale technical consultation, product selection guidance, order management, and on-site technical support.
Frequently Asked Questions
1: Is there a minimum order quantity?
We generally have no minimum order quantity.
2: Do you have the inspection procedures?
100% strict inspection and testing for every order before packing.
3: How long is your delivery time?
1-3 days for products in stock; regular order delivery in 2-3 weeks.
4: After Services
• Sales team responds within 24 hours (holidays excluded)
• Technical support available at any time
• Free replacement for confirmed quality-related failures
• Technical support available at any time
• Free replacement for confirmed quality-related failures
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Kelleg International Trade (Shanghai) Co., Ltd.