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Slotted Tube Friction Rock Bolt Split Set Bolt For Coal Mine Underground Support

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Slotted Tube Friction Rock Bolt Split Set Bolt For Coal Mine Underground Support

Delivery Time : 7 - 15 days

Product Type : Rock and Soil Anchoring Support Component

MOQ : 10PCS

Product Name : Slotted Pipe Friction Anchor Bolt

Brand Name : HLDRILL

Place of Origin : CHINA

Certification : ISO9001

Material : High strength alloy steel pipe

Applicable Scenarios : Mine roadways , tunnel engineering , slope support , temporary support

Product Advantages : Immediate load bearing capacity , high construction efficiency , wide applicability , safe and reliable

Payment Terms : T/T

Price : Please contact us

Performance Characteristics : High adaptability , quick installation , high conformity to surrounding rock

Supply Ability : 3000 PCS Per month

Structural Features : Slotted pipe body , friction anchoring

Anchoring Method : Immediate anchoring , no anchoring agent required

Packaging Details : Wooden Box

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Slotted Tube Friction Rock Bolt Immediate Anchoring High Adaptability
Slotted pipe anchors, also known as open type anchors or split set bolts, are full length friction anchors used in mining and tunnel support applications. These innovative support systems achieve reliable anchoring through pressure and friction between the anchor body and borehole wall, eliminating the need for resin or cement cartridges. Installation provides immediate anchoring and load bearing capacity, making them a widely used active support solution in coal mines, metal mines, tunnels, and slope protection projects.
Structural Design
  • Constructed from high strength cold rolled steel strip through precision rolling and welding processes
  • Cylindrical rod body featuring a longitudinal slit structure for optimal compression
  • Tapered guide head at one end for smooth and easy insertion into boreholes
Working Principle
  • Anchor bolt diameter is slightly larger than the borehole diameter for secure fit
  • Forcibly driven into borehole using rock drills or specialized anchor bolting machines
  • Slotted pipe compresses and contracts , generating continuous elastic tension
  • Forms full length friction anchor with borehole wall for maximum stability
Core Advantages
  • Quick Installation: Direct insertion without mixing or hardening requirements
  • Instant Anchoring: Provides immediate support upon installation
  • Full Length Anchoring: Entire rod under load for reliable support distribution
  • High Adaptability: Suitable for soft rock , fractured formations , and coal seams
  • Vibration Resistance: Enhanced stability with increased surrounding rock deformation
  • Cost Effective: Low material cost with high construction efficiency
Application Scenarios
  • Roof and sidewall support in coal mine underground roadways
  • Roadway support in metal and non metal mining operations
  • Initial and temporary tunnel support systems
  • Slope reinforcement and foundation pit support
  • Support in areas with fractured surrounding rock , soft rock , and complex geological conditions
Technical Specifications : Outer diameter 45mm, seam width 10 - 20mm

Product Tags:

Friction Rock Bolt

      

Slotted Tube Rock Bolt

      

Coal Mine Split Set Bolt

      
Wholesale Slotted Tube Friction Rock Bolt Split Set Bolt For Coal Mine Underground Support from china suppliers

Slotted Tube Friction Rock Bolt Split Set Bolt For Coal Mine Underground Support Images

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