Kelleg International Trade (Shanghai) Co., Ltd.
                                                                                                           
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R51 Self Drilling Anchor Bolt System for Mine Roadway Support - 51mm Outer Diameter, 800kN Ultimate Load

Price Negotiable
Price: $18.00/pieces 100-499 pieces
MOQ: 100 pieces
Delivery Time: Negotiable
Brand: Kelleg
Product Description
R51 Self Drilling Anchor Bolt System for Mine Roadway Support
R51 Self Drilling Anchor Bolt installation in mine roadway Close-up view of self drilling anchor bolt components Self drilling anchor bolt system in underground mining application
Self Drilling Anchor Bolts provide an efficient bolting solution for unstable ground conditions including sand, gravel, silt, clay, and soft to medium fractured rock formations. The system combines drilling and grouting operations into a single process for enhanced productivity.
System Components
The complete self-drilling anchor bolt system includes:
  • Hollow anchor bolt
  • Anchor nut
  • Anchor plate
  • Anchor coupler
  • Drill bit
  • Centralizer
The system drills holes in collapsing soil or loose rock using an efficient hollow bar with drill bit, then injects grout through the hollow bar into the surrounding cavity for superior ground stabilization.
Technical specifications diagram for self drilling anchor bolt system
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
Kelleg manufacturing facility and quality control processes
About Kelleg
Kelleg is a market-oriented enterprise integrating R&D, design, procurement, sales, and customer service. We specialize in geotechnical anchoring solutions and are committed to building a professional service platform that integrates system solutions, product supply, and technical support.
Our professional teams provide comprehensive services including:
  • Pre-sale technical solution consultation and product selection
  • In-sale order management
  • After-sale on-site technical guidance
Self drilling anchor bolt installation in mining tunnel Geotechnical anchoring system application in underground construction Hollow anchor bar components and assembly details Quality testing and inspection of self drilling anchor bolts Mine roadway support system using self drilling anchor technology Technical specifications and performance data for anchor systems Industrial application of soil nail and SDA systems Complete self drilling anchor bolt system components and accessories
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:
  • Our sales team responds to questions within 24 hours (holidays excluded)
  • Technical support available at any time
  • Free replacement provided for confirmed product quality failures

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.

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