Shield Machine “Path-paving Pioneers” Upgrade! HISAN Hardfacing Plate Doubles Tunnel Construction Efficiency

In urban metro projects, cross-sea tunnels, and other underground works, the shield machine cutterhead is the true “core of the assault.” It must withstand the abrasion of gravel layers while also coping with the adhesion of soft soils. Traditional cutterheads wear down at a rate of 0.5 mm per day, with frequent maintenance slowing project progress!

The HISAN hardfacing wear-resistant plate delivers a powerful solution: a Q345B base material hardfaced with a 6–12 mm chromium carbide alloy layer, boosting hardness to above 58 HRC. The wear rate drops directly to 0.1 mm per day, while bonding strength reaches 350 MPa, eliminating peeling. Service life is 2 to 3 times longer than traditional processes!

From hard rock excavation to composite ground construction, wear-resistant hardfacing technology makes shield machine tunneling more stable, longer-lasting, and more efficient—driving China’s tunnel construction forward with technological innovation toward becoming a global leader in engineering.

 Hisan Wear Plates, Shield Machine Cutters, Wear Resistant Technology, Tunnel Construction, Engineering Equipment Upgrading