Monday, October 26, 2026 · Daily editionET --:--:--

Maker's videoHilti North America · 16 Oct 2026

W-L-3511 (Config. B) UL Firestop System Installation | Pre-Drywall Ganged CFS-MSL Modular Sleeves

Watch on YouTube

Against the record

Jaibot, from Hilti, is at stage 4 of 5 on our ladder: paying customers. Delivered and paid for, beyond pilots. The latest milestone on its record is from Oct 2026: Hilti's US website still offers Jaibot, describing a cordless robot that can work up to 8 hours between charges.

This video comes from the maker's own channel, and makers show their robots at their best. The stage above comes from dated public records, not from the video.

From the video's description

Learn how to install Hilti Firestop System W-L-3511, a UL/cUL tested firestop system designed for multiple cable bundle penetrations through rated gypsum wall assemblies. This installation video demonstrates the proper installation of Hilti CFS-MSL Modular Firestop Sleeves, adjustable flanges, gasket material, and approved Hilti firestop sealants in a horizontal orientation to help maintain the fire-resistance rating of the wall before drywall board is installed while supporting future cable changes and simplifying cable management. W-L-3511 is designed for telecommunications, data, fiber optic, control, coaxial, fire alarm, and power cable applications. The system accommodates multiple cable bundles and utilizes ganged modular sleeves to provide a flexible, re-penetrable firestop solution for high-density cable penetrations in 1-hour and 2-hour rated gypsum wall assemblies. System Hig…

Written by Hilti North America on YouTube.