Headframe refurbishment during ongoing operation: Safety and precision at Shaft KONRAD 2
Share 
Client & Situation
At the safety-critical KONRAD 2 shaft site in Salzgitter, KNOKE Industrie-Montagen GmbH was commissioned to renovate a headframe during ongoing operations. The objective was the comprehensive renewal of the supporting structure and the replacement of several components without interrupting operational processes.
Project Requirements
- Execution under strict safety and permit requirements
- Use of specialized lifting technology and extensive scaffolding
- Welding work on supporting structures at great heights
- Seamless coordination with the operator
Process
- Planning & Safety Clearances
Development of the renovation concept including structural analysis, obtaining permits, and organizing access solutions (aerial work platforms, scaffolding, crane logistics). - Setup & Logistics
Erection of multi-story scaffolding systems and precise coordination of lifting operations with mobile cranes. - Dismantling & Repair
Partial dismantling of the headframe structure, welding, and steel construction work in confined spaces and at height. - Quality Control & Acceptance
Continuous quality inspections by welding supervisors, acceptance by independent experts, and handover to the operator.
Result
- Successful renovation during ongoing operations without production downtime
- Extended service life and improved operational safety of the headframe
- Strengthened partnership with the operator as a basis for follow-up orders
Date:
15/08/2025
