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Selantic Slings

Selantic Slings, made from Aramid and HMPE fibres (e.g. Kevlar® and Dyneema®) provide a safe, reliable, cost-effective and lightweight alternative to heavy chains and wire rope. These high tech materials are up to eight times as strong, weight for weight, as traditional wire rope. Selantic Slings’ endless loop construction encased in multiple layers of laminated and PU-coated Cordura® jackets and the choice of materials, enables slings to be fabricated to very tight tolerances and strength >2000Te. For subsea installation slings, an outer fluorescent jacket is used for improved subsea visibility. Each sling is custom designed for the application: heavy onshore & offshore lifting, subsea installation, mooring, tethering or project specific lifting.

Features:

• Lightweight & flexible
• Safe & easy to handle
• No damage to painted surfaces
• Durable construction
• Heat resistant & non conductive
• Available with fluorescent jacket for subsea applications
• Design optimization through material selection

Technical Details:
• Materials: Aramid & HMPE Fibres in ‘endless loop’ construction & Cordura® friction resistant cover
• Capacity: 1 to >2000 Te MBL
• Length: 0.8 – 100m
• Length tolerance: +/- 0.5%
• Certified to DNV, CN, ILO

Below is a list of material suitable for Selantic Slings. Cortland will design, manufacture and deliver exactly the right sling solution for your needs.

You may also download the Selantic Slings product data sheet.

HMPE

HMPE fibers (Plasma®, Dyneema®, Spectra) are high-modulus polyethylene fibers produced by gel-spinning ultra-high molecular weight polyethylene (UHMWPE).  These fibers are used for Selantic lifting slings because of their outstanding performance in load sharing, wear characteristics and fatigue properties. For lifting operations where temperature and creep is an issue, other types of fibers are used. For subsea installation slings, HMPE is attractive due to its specific gravity less than 1,0.

Benefits / Features
  • Highest strength-to-weight ratio of any fiber
  • Highest abrasion resistance of any fiber
  • Excellent dynamic toughness
  • Very low elongation
  • Excellent flex fatigue resistance
  • Soft hand
  • Torque free
  • Easy splicing
Applications
  • Precision lifting
  • Wind farms (tower and prop installation)
  • Subsea lifting
  • Shipyards
  • Industrial material movement or transfer
HMPE/ Aramid Blend

As with Cortland's BOB® - or Braid Optimized for Bending - patented blend of high performance fibers, a blend of Aramid and HMPE is used in applications where the need for sling properties in between those offered for pure Aramid or pure HMPE is required. The blend of Aramid and HMPE can result in high strength, low stretch and ultra low creep properties to maximize durability in specific situations.

Benefits / Features
  • High strength
  • Low stretch
  • Ultra low creep properties
  • Soft hand
  • Easy splicing
Applications
  • Precision lifting
  • Subsea lifting
  • Wind farms (installation of towers and props)
  • Shipyards
  • Industrial material movement or transfer
Aramid

The unique properties and distinct chemical composition of Aramid fibers distinguish them from other commercial, man-made fibers.  They offer the unique combination of high strength, high modulus, toughness and thermal stability. Aramids are manufactured high-modulus fibers in which the fiber-forming substance is a long-chain synthetic aromatic polyamide in which at least 5% of the amide linkages are attached directly to aromatic rings. Aramid is the preferred choice as load bearing material for applications that should take static loads for longer time, and in applications where temperature is an issue. The following Aramid fibers are used by Cortland: Technora® , Twaron® , and Kevlar®.

Benefits / Features
  • Excellent strength to weight ratio
  • Highest resistance to heat of any fiber
  • Low length tolerances
  • Low stretch
  • Tough
  • Thermal stability
  • Soft hand
  • Torque free
  • Easy splicing
Applications
  • Precision lifting
  • Subsea lifting
  • Subsea tethers
  • Wind farms (tower and prop installations)
  • Industrial material movement or transfer