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{"title":"T38 Threaded Rock Drill Rods\u2002Wear - Resistant With High Manganese Steel Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/d0\/93\/54a43939ed8342db652d321752be-200x200-1\/t38_threaded_rock_drill_rods_e2_80_82wear_resistant_with_high_manganese_steel_material.jpg","attrs":{"Brand Name":"MIROC","Model Number":"T38","Certification":"ISO","Place of Origin":"China"}}
{"title":"Rock T45 Threaded Drill Rod , Extension Drill Rods For Underground Powerhouse","imgUrl":"https:\/\/img.chinax.com\/nimg\/f1\/ca\/a6f814f4def3890d437847d61149-200x200-1\/rock_t45_threaded_drill_rod_2c_extension_drill_rods_for_underground_powerhouse_excavation.jpg","attrs":{"Brand Name":"MIROC","Model Number":"T45","Place of Origin":"China","Minimum Order Quantity":"50"}}
Full Threaded Forged Self Drilling Anchor Bolt System
Available in sizes R23, R32, R38, R51, T76 for ore mining, tunneling, and slope stabilization applications.
Product Overview
A high-strength anchor bolt system designed to transfer structural and geotechnical loads into stable rock formations. The complete system includes hollow threaded rod, drill bit, coupling, anchor plate, grouting stopper, and nut. Manufactured from high-strength seamless steel tube for exceptional load-bearing capacity and durability.
Key Features
Compatible with standard Boomer, ROC, and Mustang drilling rigs
Ideal for difficult or unstable ground conditions
High installation efficiency - drilling, placing, and grouting in single operation
Self-drilling system eliminates need for cased borehole
Simultaneous drilling and grouting capability
Easy installation in all directions, including upward drilling
Suitable for limited space, low height, and hard-to-reach areas
Simple post-grouting system
Hot-dipped galvanized finish for corrosion protection
Applications in Tunneling & Ground Engineering
Application
Description
Radial bolting
Ground reinforcement around tunnel perimeter
Slope stabilization
Preventing landslides and slope failures
Forepoling
Advance support ahead of tunnel face
Micro injection pile
Small-diameter grouted piles for foundation support
Face stabilization
Securing tunnel face during excavation
Temporary support anchor
Short-term ground retention during construction
Portal preparation
Stabilizing tunnel portals before excavation
Soil nailing
Reinforcing existing slopes or excavations
Installation Procedure
Step 1 - Drilling
Connect alloy drill bit to anchor rod end. Connect drill sleeve and shank adapter to other end, then attach to drilling rig. Start drilling while injecting cooling water. Use coupling sleeve to extend anchor rod length as needed.
Step 2 - Hole Preparation
Remove drill rig. Insert grouting stopper and push to bottom of hole. For excessive rock grouting tension or highly fractured rock, use anchor agent to seal the hole.
Step 3 - Grouting Connection
Connect quick grouting coupling to anchor rod end, and connect other end to grouting machine.
Step 4 - Grouting
Begin grouting and stop when grout fills completely and reaches design value. Grouting pressure determined by design parameters and machine performance.
Cement/Sand Ratio (reference): 1:0 to 1:1
Water/Cement Ratio (reference): 0.45:1 to 0.5:1
Step 5 - Final Fixing
Install anchor plate and tighten nuts to complete installation.
Technical Specifications
Model
R25N
R32N
R32S
R38N
R51L
R51N
T76N
T76S
Outside Diameter (mm)
25
32
32
38
51
51
76
76
Internal Diameter (mm)
14
19
16
19
36
33
52
45
Ultimate Load Capacity (kN)
200
280
360
500
550
800
1600
1900
Yield Load Capacity (kN)
150
230
280
400
450
630
1200
1500
Tensile Strength, Rm (N/mm²)
800
800
800
800
800
800
800
800
Yield Strength, Rp0.2 (N/mm²)
650
650
650
650
650
650
650
650
Weight (Kg/m)
2.3
3.2
3.6
5.5
6.5
8
16
19.7
Steel Grade: EN10083-1 (Alloy Structure Steel)
Compared to carbon steel, alloy structure steel offers superior anti-corrosion capacity and higher mechanical properties.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2009
Total Annual:
3000000-5000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit...
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capit...
