Product Overview
Osro Strap is an innovative rock support system designed for mining and tunneling applications. These high-strength wire mesh straps provide continuous strip support between rock bolts, effectively preventing rock fall-outs while maintaining rockmass integrity. With exceptional load distribution capabilities, Osro Straps offer superior surface confinement for loose rock formations between bolts.

Key Features & Advantages
✔ Superior Load Distribution – Longitudinal wire strands slip under load to distribute forces across multiple bolts
✔ Enhanced Safety – Prevents rock fall-outs between bolts and maintains structural stability
✔ Flexible Installation – Adapts to uneven surfaces with no drill-hole location restrictions
✔ High Strength-to-Weight Ratio – Lightweight yet offers 400MPa yield strength (500-700MPa ultimate strength)
✔ Versatile Applications – Compatible with shotcrete and Thin Sprayed Liners (TSLs) for comprehensive support
✔ Corrosion Resistant – Optional hot-dip galvanizing (AS/NZ4680 standard) for harsh environments
✔ Space-Efficient – Replaces bulky steel sheets and W-straps with more efficient solution
Technical Specifications
• Material: Hard-drawn low-carbon steel wire
• Dimensions:

Length Options: 2m / 5.5m / 6m

Width: 300mm
• Wire Configuration:

5 parallel main rods (8mm diameter)

Cross wires every 150mm (6mm diameter)

Reinforced ends with 2 cross wires (75mm spacing)
• Strength Characteristics:

Typical Yield Strength: 400MPa

Ultimate Strength: 500-700MPa
• Surface Treatment: Hot-dip galvanizing available

Installation Guidelines

Position strap against rock surface

Install rock bolts through wire apertures

Secure with washers/bearing plates to prevent pull-through

May be overlap-joined for extended coverage

Can be combined with shotcrete or TSLs for enhanced protection