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Heavy Duty Mechanical Anchor

 
Heavy-duty mechanical anchors consist of a threaded rod, a steel sleeve, a tapered cone, expansion segments, and a nylon sleeve. They are typically manufactured from high-strength alloy steel (e.g., Grade 8.8, 10.9, or higher) or stainless steel.
These anchors are specifically engineered to provide extremely high load-bearing capacity (in tension, shear, or a combination of both) within concrete, masonry, or other natural hard substrates.
Heavy-duty mechanical anchors possess exceptional load-bearing capabilities, far exceeding those of standard expansion bolts or light-duty anchors. Their design working loads typically range from tens to hundreds of kilonewtons (kN).
As critical structural connectors engineered to withstand immense loads, the core principle of heavy-duty mechanical anchors lies in achieving their extraordinary load-bearing capacity through precise mechanical expansion or interlocking mechanisms within hard substrates (primarily concrete).
 
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Advantage



1. High Load-Bearing Capacity: Heavy-duty mechanical anchor bolts offer exceptional load-bearing capabilities and maintain stable performance even in harsh environments.

2. Easy Installation: Their installation is relatively straightforward, requiring no special tools or techniques, thereby saving construction time and costs.

3. Strong Corrosion Resistance: The materials used typically possess excellent anti-corrosion properties, enabling adaptation to various environments.

4. Stable and Reliable: Professionally designed and manufactured, they provide secure and dependable anchoring, effectively preventing loosening or displacement due to vibration and deformation.

5. High Durability: Constructed from high-strength materials, they exhibit excellent abrasion resistance and corrosion resistance, capable of withstanding immense pressure and friction while maintaining stable long-term fixation.

6. Convenient Construction: Installation and maintenance are simple and efficient, allowing for rapid completion of tasks and saving construction time and labor costs.


Application



Heavy-duty mechanical anchor bolts are commonly used in multiple fields and industries, primarily including:


1. High-rise Buildings: In high-rise structures, heavy-duty mechanical anchor bolts are widely used for fixing curtain walls, billboards, and other additional structures, ensuring the safety and stability of the building.

2. Heavy Equipment Installation: For heavy machinery such as transformers and generators, heavy-duty mechanical anchor bolts provide a reliable fixing method, preventing displacement or vibration during operation.

3. Bridge and Tunnel Engineering: In bridge and tunnel construction, heavy-duty mechanical anchor bolts are used to fix structural components like bridge steel piers and steel box girders, as well as internal tunnel elements such as steel supports and concrete lining. They effectively support tunnel geology, preventing ground deformation, sliding, or collapse.

4. Mining and Geotechnical Engineering: In underground engineering and mining projects, heavy-duty mechanical anchor bolts are employed for coal mine support, controlling mined-out areas in metal mines, and similar applications. They enhance the mechanical strength and stability of coal seams and prevent geological hazards.

5. Industrial Plants: Heavy-duty mechanical anchor bolts also play a significant role in the installation and fixing of large equipment in industrial plants and nuclear power stations.

6. Civil Construction: In civil construction, heavy-duty mechanical anchor bolts are used for the installation and fixing of various pipelines such as water, electricity, and fire-fighting pipes, as well as for installing and securing soundproof panels and other protective barriers.


Heavy Duty Mechanical Anchor
ModelScrew Diameter (mm)Hole Diameter*Minimum Hole Depth (mm)Fixture Thickness  (mm)Fixture Aperture  (mm)Minimum Effective Burial Depth (mm)Hexagon Bolt (A) Length (mm)Straight bolt (B) Length (mm)Weight (kg/box)
M8-5M812*805126080873.31
M8-20M812*802012601001074.10
M8-40M812*804012601201272.47
M10-5M1015*955167080953.59
M10-20M1015*952016701001104.20
M10-40M1015*954016701201305.60
M12-5M1218*105518801001104.18
M12-25M1218*1052518801301414.63
M12-50M1218*1055018801501605.21
M16-10M1624*12510241001301474.71
M16-25M1624*12525241001501675.58
M16-50M1624*12550241001801973.49
M20-10M2028*16010281251601904.35
M20-30M2028*16030281251802105.02
M20-50M2028*16050281252002305.88
M24-30M2432*18030321502002405.02
M24-60M2432*18060321502302705.02
Material
  1. Carbon Steel: Grade 8.8

  2. Stainless Steel: 304/316

Surface Treatment1. Electro zinc plating (zinc layer thickness>5um) with blue Cr.


Basic Design Parameter Table
Model: THS                                                                                                                                                               Material: Carbon steel, electro zinc plating with Cr
Screw Diameter(mm)M6M8M10M12M16M20M24
Burial Depth55657585100125150
Design Tension Value
Nd4)Cracked ConcreteC20/25(KN)3.45.010.617.223.92663.3
C30/37(KN)4.16.213.021.029.331.877.3
C40/60(KN)4.37.015.024.233.936.789.3
C50/60(KN)5.27.716.526.637.248.398.1
Non-Cracked ConcreteC20/25(KN)4.26.713.224.133.644.293.4
C30/37(KN)5.08.116.229.441.053.9113.8
C40/60(KN)5.99.418.833.947.362.3131.6
C50/60(KN)6.410.420.737.252.168.5144.6
Design Shear Value
Vd4)Cracked ConcreteC20/25(KN)7.39.828.134.348.068.9153.3
C30/37(KN)8.811.931.241.758.483.7153.3
C40/60(KN)10.213.931.248.067.986.2153.3
C50/60(KN)11.215.131.248.074.3106.8153.3
Non-Cracked ConcreteC20/25(KN)10.113.731.248.067.296.5153.3
C30/37(KN)12.016.731.248.076.9112.8153.3
C40/60(KN)12.019.331.248.076.9112.8153.3
C50/60(KN)12.020.031.248.076.9112.8153.3
Design Bending Moment(Nm)9.721.948.084.0212.3415.2748.3
Margins, Spacing & Substrate Thickness
Effective Burial Depth(mm)50607080100125150
Critical Spacing(mm)80100160240250300750
Minimum Spacing(mm)50607080100125250
Critical Margin(mm)80100160240250300375
Minimum Margin(mm)50607080100150250
Minimum Substrate Thickness(mm)100110140160200250400
Installation Parameters
Hole Diameter(mm)10121518242832
Hole Depth(mm)658095115125150185
Fixture Hole Diameter(mm)12141720263034
Nut Specification(mm)101317192432-
Installation Torque(mm)815406080269300


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