AT-PAC DESIGN & ENGINEERING - EMERGENCY STAIR TOWER FOR COAL MINE

April 12, 2022


AT-PAC provided an advanced Design & Engineering solution for an emergency stair tower scaffold as requested by a mine operator in Australia. The scaffold had to be installed between two coal bins for emergency access & egress use during routine maintenance work. AT-PAC utilized the Ringlock system scaffold standard components, and the lightweight Ringlock Aluminum Platform Stair was integrated into the core tower. The customer requested the stair tower to reach a maximum height of 37m and bridge across to a permanent walkway at the top of coal bins. Tie connections between the scaffold and adjacent bins were provided by installing custom fabricated structural steel frames at two elevations (3.6m and 23.7m) 20m apart. 


AT-PAC designed a solution to overcome the 20m span between ties by installing large 1.0m aluminum beams vertically connected to Ringlock Ledgers. This provided the necessary horizontal restraint required to stabilize the slender scaffold structure. The AT-PAC team produced the engineered drawings and supplied the Ringlock material from our regional branch-based network. 


Our engineered solution reduced man-hours to install additional ties and created safe access and egress solution that was erectable and optimized the material requirements. 


To view the model of the scaffold, please use this link.
AT-PAC 3D Scaffold Design

You might also like

AT-PAC Blog

By Julio Black April 3, 2025
We are excited to share an important milestone in our journey. AT-PAC is now officially operating under umdasch Industrial Solutions. This transition further strengthens our position as an end-to-end scaffolding provider, expanding our reach and enhancing our ability to serve i ndustrial customers and scaffolding contractors worldwide.
By Julio Black April 1, 2025
Atlanta, Georgia, USA
By Julio Black February 17, 2025
AT-PAC Unveils the Multi-Purpose Beam System (MPBS) at World of Concrete 2024 AT-PAC proudly launched its latest innovation, the Multi-Purpose Beam System (MPBS), at World of Concrete 2024, marking a significant milestone in scaffold technology. As a cutting-edge addition to AT-PAC’s proprietary Ringlock System Scaffold, the MPBS offers unparalleled versatility and efficiency, revolutionizing the way scaffold structures are designed and deployed. A Game-Changer for the Industry Designed to expand the capabilities of the Ringlock System, the MPBS provides a groundbreaking solution for a wide range of applications, including: Suspended Scaffold & Pipe Rack Scaffolds – Enabling safe and efficient suspended access solutions. Birdcages – Creating stable, large-scale work platforms. Large Span Bridging – Allowing for expansive scaffold spans with fewer components. Boiler Scaffolds – Meeting the unique needs of confined and high-heat environments. Cantilevers – Offering extended reach and accessibility. Innovative Design & Seamless Integration The MPBS system is engineered for simplicity and adaptability. At its core is a robust extruded aluminum beam, capable of supporting O-Type Ringlock Planks and an array of attachable steel accessories. With 6-inch (152.4mm) on-center attachment points along its length, the MPBS ensures maximum flexibility, making it suitable for diverse scaffolding applications. What sets the MPBS apart is its seamless integration into the Ringlock System, enhancing functionality while minimizing complexity. The ability to achieve larger spans than traditional methods reduces the overall number of components required, streamlining both installation time and labor costs.
More Posts