The Support frame (OEM Part No. 3128314346) is a spare part compatible with Boltec 235 , boltec-MC and boomer-md underground drilling rigs. Manufactured from durable alloy steel, it serves as a structural component for the equipment load-bearing support system at the main bracket mount position. As the core load-carrying framework, it holds drill assemblies, hydraulic pipelines and auxiliary parts firmly, absorbing strong vibration and impact from underground rock drilling work. Its integrated rigid alloy steel structure ensures stable equipment layout, reliable load capacity and long-term structural integrity.