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 NJMKT Self-undercutting Anchor  NJMKT Self-undercutting Anchor  NJMKT Self-undercutting Anchor

NJMKT Self-undercutting Anchor

Ultimate-performance through-set undercut anchor for dynamic

Self-undercutting facilitates fast and reliable installation without the need for a separate undercutting tool or additional operations

Combines the advantages of a post-installed mechanical anchor, i.e. flexibility and immediate loading, with the performance of a cast-in-place headed stud

Close spacing and small edge distance thanks to low expansion forces

The resulting keying effect provides a secure hold even in cracked concrete under dynamic loading


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    Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.

    自切底_01.jpg自切底效果英语.jpg自切底_02.jpg自切底_03.jpg自切底_04.jpg

    Ultimate-performance through-set undercut anchor for dynamic

    Key Features

    Consist: anchor rod, undercut lock, spacer sleeve, washer, nut

    Material: alloy steel grade 5.8, 6.8, 8.8, 10.9, 12.9; stainless steel A4-80 

    Anti-corrosive treatment:

    galvanized steel≥5μm, applicable in indoor and outdoor surroundings

    hot dipped galvanized steel≥45μm, applicable in corrosion environment

    Surface treatment can be required for long-lasting complex environment with other process of anti-corrosion treatment


    Description

    Higher load-bearing capacity than conventional mechanical anchors and chemical anchors

    The key lock self-cut in the concrete base material under the action of twisting torque moment

    Suitable for various base materials angle mounting, including horizontal, vertical and overhead installation

    Low expansion stress allows for small spacing and edge distance and different embeddment depth

    Professional, scientific, strict product design meets the requirements of  effective and safe anti-pull and shearing strength 


    Characteristics

    Self-undercutting facilitates fast and reliable installation without the need for a separate undercutting tool or additional operations

    Combines the advantages of a post-installed mechanical anchor, i.e. flexibility and immediate loading, with the performance of a cast-in-place headed stud

    Close spacing and small edge distance thanks to low expansion forces

    The resulting keying effect provides a secure hold even in cracked concrete under dynamic loading


    Safety-relevant, heavy-duty fastenings for all dynamic loading (shock, seismic and fatigue) in cracked or uncracked concrete, including applications in nuclear power plants

    Fastenings to support heavy pipes, safety barriers, industrial machines, crane rails, dorm structures, crash barriers, roof fixings, elevator tracks, bridge retrofitting etc.



    Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.


    Installation Guide

    NJMKT Self-undercutting Anchor


    Pre-Set type

    Drill the hole to proper depth and diameter per specifications using ordinary impact drill.

    Blow the hole clean using manual/electric air pump.

    Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. Then place the anchor into the drilled hole and use a hammer and setting tool to drive the anchor until the washer and nut are tight against the surface of the base material.

    Tighten the nut using torque wrench. 

    Remove the nut and install the plate fixture, then re-tighten the nut and washer over the fixture using torque wrench to required installation torque.



    Through-Set type

    Drill the hole to proper depth and diameter per specifications using ordinary impact drill.

    Blow the hole clean using manual/electric air pump.

    Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. The bottom of the threaded rod should be flush with the bottom of the cone.

    Then place the anchor through the fixture and use a hammer and setting tool to drive the anchor into the drilled hole until the washer and nut are tight against the surface of the fixture.

    Tighten the nut using torque wrench and tighten the nut to the required installation torque. Then the installation is finished.






    NJMKT Self-undercutting Anchor


    NJMKT Self-undercutting Anchor

    ● The values are suitable for: correct installation, no influence of spacing and edge distance, minimum base material thickness.

    ● All the data applies in C20/25 concrete base material. If the base material grade changes, the corresponding concrete influence coefficient will needs to be increased. 

    ● The * part in the table is steel failure control.

    ● Design load: including material partial factor, but not including overall partial factor.

    ● Recommended load: including not only material partial factor, but also including overall partial factor 1.4.

    ● If your anchor with special material and specification is not listed in this table, please contact our engineer for advice.

    ● All basic anchor data in this table is given according to 2013 ETAG001 and Appendix. The partial factor in the load application must be in accordance with national regulation.

    Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.

Description

Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.

自切底_01.jpg自切底效果英语.jpg自切底_02.jpg自切底_03.jpg自切底_04.jpg

Ultimate-performance through-set undercut anchor for dynamic

Key Features

Consist: anchor rod, undercut lock, spacer sleeve, washer, nut

Material: alloy steel grade 5.8, 6.8, 8.8, 10.9, 12.9; stainless steel A4-80 

Anti-corrosive treatment:

galvanized steel≥5μm, applicable in indoor and outdoor surroundings

hot dipped galvanized steel≥45μm, applicable in corrosion environment

Surface treatment can be required for long-lasting complex environment with other process of anti-corrosion treatment


Description

Higher load-bearing capacity than conventional mechanical anchors and chemical anchors

The key lock self-cut in the concrete base material under the action of twisting torque moment

Suitable for various base materials angle mounting, including horizontal, vertical and overhead installation

Low expansion stress allows for small spacing and edge distance and different embeddment depth

Professional, scientific, strict product design meets the requirements of  effective and safe anti-pull and shearing strength 


Characteristics

Self-undercutting facilitates fast and reliable installation without the need for a separate undercutting tool or additional operations

Combines the advantages of a post-installed mechanical anchor, i.e. flexibility and immediate loading, with the performance of a cast-in-place headed stud

Close spacing and small edge distance thanks to low expansion forces

The resulting keying effect provides a secure hold even in cracked concrete under dynamic loading


Applications

Safety-relevant, heavy-duty fastenings for all dynamic loading (shock, seismic and fatigue) in cracked or uncracked concrete, including applications in nuclear power plants

Fastenings to support heavy pipes, safety barriers, industrial machines, crane rails, dorm structures, crash barriers, roof fixings, elevator tracks, bridge retrofitting etc.



Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.


Functionality

Installation Guide

NJMKT Self-undercutting Anchor


Pre-Set type

Drill the hole to proper depth and diameter per specifications using ordinary impact drill.

Blow the hole clean using manual/electric air pump.

Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. Then place the anchor into the drilled hole and use a hammer and setting tool to drive the anchor until the washer and nut are tight against the surface of the base material.

Tighten the nut using torque wrench. 

Remove the nut and install the plate fixture, then re-tighten the nut and washer over the fixture using torque wrench to required installation torque.



Through-Set type

Drill the hole to proper depth and diameter per specifications using ordinary impact drill.

Blow the hole clean using manual/electric air pump.

Before installation, firstly finger-tighten the anchor with its all components to ensure the anchor is tightened. The bottom of the threaded rod should be flush with the bottom of the cone.

Then place the anchor through the fixture and use a hammer and setting tool to drive the anchor into the drilled hole until the washer and nut are tight against the surface of the fixture.

Tighten the nut using torque wrench and tighten the nut to the required installation torque. Then the installation is finished.



Project



Technical Data


NJMKT Self-undercutting Anchor


NJMKT Self-undercutting Anchor

● The values are suitable for: correct installation, no influence of spacing and edge distance, minimum base material thickness.

● All the data applies in C20/25 concrete base material. If the base material grade changes, the corresponding concrete influence coefficient will needs to be increased. 

● The * part in the table is steel failure control.

● Design load: including material partial factor, but not including overall partial factor.

● Recommended load: including not only material partial factor, but also including overall partial factor 1.4.

● If your anchor with special material and specification is not listed in this table, please contact our engineer for advice.

● All basic anchor data in this table is given according to 2013 ETAG001 and Appendix. The partial factor in the load application must be in accordance with national regulation.

Undercut concrete anchors,concrete fixings anchor bolts, undercut anchors,anchor fasterners, anchor bolt price, anchor bolt weight, expansion bolt, stainless steel anchor bolt.