Safe rigging is the cornerstone of every construction, offshore, and industrial heavy-lift project. One of the most catastrophic yet common rigging errors is failing to account for sling angle tension multipliers.

Grade 80 Lifting Chains Boscaro Kapountalis

1. Standard Polyester Sling Color Coding (EN 1492-1)

  • Violet: 1,000 kg Working Load Limit (WLL)
  • Green: 2,000 kg WLL
  • Yellow: 3,000 kg WLL
  • Grey: 4,000 kg WLL
  • Red: 5,000 kg WLL
  • Brown: 6,000 kg WLL
  • Blue: 8,000 kg WLL
  • Orange: 10,000 kg+ WLL

Frequently Asked Questions (FAQ)

Why does the angle between sling legs increase the tension on each leg?

Vector physics dictates that as the sling angle opens up wider, a large horizontal compressive force is generated in addition to the vertical load force, dramatically increasing total tension.

Source fully certified slings, Grade 80/100 chains, and load shackles from KAPOUNTALIS.