Product Catalog
SEM / NATM Support Systems
Civil Brochure
Lattice Girders and Steel Arches
Look to Jennmar Civil for quality USA manufacturing and development of ground support elements. We provide designs and products for Lattice Girders used in SEM/NATM construction.
Self Drilling Hollow Bar
The Self-Drilling bolt is a fully threaded hollow bar that initially serves as a drill rod, utilizing a lost bit. The thread is made to comply to ISO 10208. For use in unconsolidated ground or other difficult ground conditions.
Umbrella Canopy Tubes
Umbrella canopy tubes are self-drilling casing pipes used in soft ground tunneling as forepoling.
