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New concrete fastener meets high-load demand

UNDER PRESSURE The pre-positioned undercut anchor designed by fischer meets the demands of high-load applications in concrete

SCREW IT The FSU designed by fischer was made for heavy-duty fixings to anchor steel structures

12th July 2024

     

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Global fastener solutions manufacturer fischer India announced the launch of its pre-positioned undercut anchor, or FSU, which is a “ground-breaking addition” to fischer’s line-up designed to meet the demands of high-load applications in concrete.

“This innovative anchor not only delivers unprecedented performance but also introduces enhanced installation efficiency with its self-undercutting capability,” says fischer India MD Mayank Kalra.

“Additionally, with the integration of a data matrix code (DMC), the FSU underscores our commitment to advancing the digitalisation of fastening solutions, offering seamless product identification and data accessibility,” he says.

He explains that heavy steel and facility constructions, nuclear power plants, refinery projects, power stations, infrastructure projects, and the oil and gas industry will benefit from the self-undercutting FSU which is made from galvanised steel.

The FSU was made for heavy-duty fixings to anchor steel structures, heavy pipe systems and industrial machines as well as many other indoor fixtures and attachment parts in cracked and non-cracked concrete.

The construction product assessment body European Technical Assessment (ETA) certification that the FSU has been awarded is proof that the product provides safety during fastening applications in cracked concrete.

The plug is also approved for seismic applications in categories C1 and C2, meaning it can be used in areas prone to earthquakes.

FSU is also a safe choice in the event of fire as it has achieved a R120 fire rating, which means that the system will not collapse and will remain stable for 120 minutes when exposed to a fully developed fire. It is therefore suitable for fastening installation systems such as extinguishing systems.

Kalra reports that the FSU is simple and easy to install, with two different undercut anchor versions that enable push-through (FSU-P) and FSU installation.

The anchor is placed into a drill hole created with the FSU-SD stop drill bit using the FSU-ST setting tool.

Upon cleaning the drill hole, the anchor is placed with the FSU-ST setting tool. The anchor self-cuts into the undercut, creating a flush connection.

“Owing to this perfect flush fit, the FSU reliably transfers the forces and anchors into the substrate almost without expansion, achieving an extremely high load and safety level.”

Its six cutting teeth and the self-undercutting principle enable precise and powerful placements in concrete and make installation fast and secure, adds Kalra.

The low expansion forces allow very low edge and axial spacing without spalling and provide maximum safety and “ultimate flexibility” for all applications, even in the event of strong crack formation and wide crack widths in seismic areas.

Another advantage is the special plastic element that fixes the FSU in the drill hole, preventing the anchor from falling out of the drill hole and making overhead installation simple and safe.

Convenient setting depth markings on the plug and setting tool referred to as FSU-ST provide a quick visual assembly check while guaranteeing additional safety.

The DSU-DT disassembly tool can be used to quickly remove the anchor without a trace, if needed.

Product data can be identified and read using the DMC on the anchor. The code can easily be scanned using the fischer PRO app, so that all the information about the scanned product can be viewed directly in the app.

Kalra concludes that users can download the ETA certificate and additional data in the download section, meaning this feature guarantees transparency while enabling data storage.

Edited by Nadine James
Features Deputy Editor

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