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Webinar - cast in anchor design

Webinar - Design Cast-In Anchor Channel

in Accordance with SA TS 101

Anchor systems are used to fix brackets in many applications including curtain walls and facades, guide rails in elevators and service installations. But designing cast-in anchor channel systems can be very complex. The calculations you need according to standard SA TS 101 can contain up to 29 different verifications for 3D loading and load combinations.

In this presentation, we will outline the scope of SA TS 101 and how to perform a design in accordance with the standard. Our technical experts will be on hand to answer your questions in real-time via the chat box.

After attending the webinar, you will receive an attendance certificate via email. Hilti webinars are eligible for CPD points.


  • Background and scope of SA TS 101
  • Compliance requirements for cast-in anchor channel
  • Hilti Anchor Channel (HAC) product portfolio
  • Simple design software - PROFIS Anchor Channel


Zac Bouchabake joined Hilti as a Field Engineer in 2005 working on a wide range of building and civil projects. He is currently National Façade Specification Engineer with a focus on curtain wall attachment using cast-in channel.

Zac holds a Master Degree in Structural Engineering from Sydney University since 1994 and is a member of Engineers Australia.


Audience questions from previous webinars

Q. How is the dissimilar metal between a SS (stainless steel) bolt and a HDG (hot dipped galvanised) cast-in channel addressed?

A. The ratio of surface areas of the linked metals; (SS bolt & HDG cast-in channel) is of crucial importance for the corrosion rate. From an electrochemical point of view, the less noble metal (ie. HDG cast-in channel) should have a much larger surface area. A fastener (ie. SS bolt) is normally always the smaller component and thus has a smaller surface area, the bolt should be made of the same material of the cast-in channel or if not possible of a nobler material. SS is more noble than HDG, and as such the SS bolt on a much larger HDG cast-in channel do not normally cause corrosion.

Q. To design cast-in anchor channels is it the same PROFIS? Or is it a specialised one?

A. PROFIS Anchor Channel covers only cast-in anchor channel. For post installed anchors, you would need to use PROFIS Anchor instead. They are different programs.

Q. Presenter just mentioned that 8.8 grade high tension bolts to be used. Normally we prefer 4.6 grade bolts.

A. For the HAC-30 anchor channel we have 4.6 grade bolts, but for the larger channels, HAC-40 to HAC-70, we commonly use 8.8 grade bolts and if needed, stainless steel A4-50 can be supplied.

We’ve found that with these larger channels to fully utilise their capacity, grade 8.8 bolts are the way to go