Product Code: L12TM4
​Type: Heavy-Duty Trench Mesh (Wide-Span Configuration)
​Compliance: AS/NZS 4671 | ACRS Certified | ISO 1461 (Galvanized Option)

Technical Specifications:

Key Features:

1. ​Enhanced Structural Capacity​

   • ​4-wire configuration​ optimizes load distribution for ​300mm trench widths, ideal for AS 2870 Class H2/H3 reactive soils.
   • ​12mm high-yield steel​ (500MPa tensile strength) provides ​35% higher bending resistance​ vs. L11TM4 equivalents.

2. ​Rapid Deployment​

   • Pre-engineered design reduces on-site assembly time by ​70%​​ compared to manual rebar grids.
   • Compatible with ARC ​TMC12300 trench clips​ for instant rigid cage formation.

3. ​Advanced Corrosion Resistance​

   • Hot-dip galvanized version offers ​80μm coating thickness​ (AS/NZS 4680), suitable for coastal and industrial zones.
   • Optional epoxy-polyester hybrid coating for chemical exposure (ISO 12944-C4/C5M compliance).

4. ​Precision Manufacturing​

   • AI-calibrated robotic welding ensures ​​±1.2mm dimensional accuracy​ and ​4,100N/mm² weld strength​ (AS/NZS 1554.3).
   • Blockchain-enabled traceability via QR code for real-time access to mill certificates and carbon footprint data.

Typical Applications:

• ​Civil Engineering:
  • Highway overpass foundation beams
  • Retaining walls with ​2.5m+ retained height​
  • Bridge pier footings in flood-prone areas
• ​Heavy Industry:
  • Petrochemical plant pipe trenches
  • Mining conveyor belt foundations
  • Precast concrete tunnel segments (2m spans)
• ​Utilities:
  • High-voltage cable trench reinforcement
  • Wastewater treatment plant drainage systems

Ordering Notes:

❗ ​Customization:

• Available in ​4.8m–12m lengths​ (minimum 35 units for non-standard sizes).
• Galvanized orders require ​24-day lead time​ (blast-cleaning pretreatment included).

❗ ​Logistics:

• ​Non-stackable bundles​ – requires flatbed transport with edge protectors.
• VCI (Vapor Corrosion Inhibitor) packaging available for marine shipments (+15% cost).

❗ ​Compatibility:

• Use with ARC ​Plastic Trench Mesh Supports (TMS60)​​ for precise vertical alignment.
• Integrates with ​CFBP50 Clipfast Spacers​ for 50mm concrete cover requirements.