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  • Grade 80 Container Hook CTK Type
  • Grade 80 Container Hook CTK Type
  • Grade 80 Container Hook CTK Type
  • Grade 80 Container Hook CTK Type
  • Grade 80 Container Hook CTK Type
  • Grade 80 Container Hook CTK Type

Grade 80 Container Hook CTK Type

No.502031

The Grade 80 Container Hook (CTK Type) is a specialized, heavy-duty lifting component engineered specifically for the safe and efficient hoisting of ISO shipping containers. It is designed to connect directly and securely into the standard corner casting twist-lock pockets of shipping containers, making it an essential tool for port operations and logistics.

  • Specialized Configurations: Available in Left, Right, and Straight (vertical) versions to safely accommodate different rigging setups, including 45-degree angled sling configurations and direct vertical lifts using spreader beams.
  • High-Capacity Lifting: Built for heavy-duty container handling, featuring a massive Working Load Limit (WLL) of 12.5 tonnes per hook, allowing a four-point lifting setup to safely handle fully loaded containers.
  • Universal Compatibility: Features a large-diameter eye that allows for easy, fast, and secure attachment to most standard lifting hooks, chain slings, and rigging hardware.
  • Grade 80 Alloy Strength: Manufactured from premium quenched and tempered Grade 80 forged alloy steel and finished with a protective powder coating, ensuring exceptional durability and a reliable 4:1 safety factor.
  • Technical Data

  • G-80 Alloy Fittings

Grade 80 Container Hook - CTK Type

Safe Bottom Lifting for ISO Containers
Grade 80 Alloy Steel ISO Corner Fitting Left/Right/Straight 4:1 Safety Factor
Grade 80 Container Hooks Diagrams Container Hook Application Photo

*Locks into bottom corner casting with 90° turn

Product Features

  • ISO Standard Fit: Designed with precision to lock securely into the side holes of standard ISO Container Corner Castings. The geometry prevents the hook from slipping out when under tension.
  • Bottom Lifting: Engineered to lift from the bottom corners. This eliminates compression forces on the container roof, offering a safer solution for heavy loads compared to top lifting.
  • Secure Locking: Easy installation: insert the hook horizontally, then rotate 90 degrees to lock it into place. It cannot disengage as long as the sling remains under load.
  • High Capacity: Manufactured from Grade 80 Alloy Steel. Each hook is rated for a Working Load Limit (WLL) of 12.5 Tonnes.
Installation Guide: Lifting a Full Container
Requirement Configuration Important Note
Quantity Set of 4 Hooks Never lift a container with fewer than 4 points.
Orientation 2x Left + 2x Right Hooks are marked "L" or "R". They must be installed symmetrically to ensure proper engagement.
Rigging Method Use Spreader Beam Lifting angle should be vertical to prevent hook disengagement. Max angle 45° from vertical.

Technical Specifications

Item No. Type WLL
(t)
Dimensions (mm) Weight
(kg)
Product Code
A M H E R Φ1 Φ2 L
8-CTK-S Straight 12.5 46 75 166 46 60 70 25 265 4.12 502031001
8-CTK-L Left 12.5 46 75 166 46 60 70 25 265 4.12 502031002
8-CTK-R Right 12.5 46 75 166 46 60 70 25 265 4.12 502031003
Grade 80 Chain Fittings

G-80 Alloy Fittings / Grade 80 Sling Components

Grade 80 Sling Components are the long-established industry standard for chain slings and heavy lifting. Fully compliant with international lifting regulations and designed for durability.

What Does “Grade 80” Mean?

  • High-strength Alloy Steel
  • Min breaking force ≈ 4 × WLL
  • Heat-treated (Quenched & Tempered)
  • Standard: EN 818-4 / EN 818-6
  • Marked “G80” or “8”

Common Grade 80 Components

1. Master Links

Used to connect the sling to a crane or hoist hook.

  • Master Link (ML)
  • Master Link Assembly (Multi-leg)
  • Pear-shaped master links

2. Hooks

End fittings for secure load attachment.

  • Clevis Self-Locking Hook
  • Eye Self-Locking Hook
  • Sling Hook with Safety Latch
  • Foundry Hook
  • Grab Hook (Shortening)

3. Connecting Links

Essential hardware to join chains or fittings.

  • Clevis Connecting Link
  • Hammerlock / Coupling Link
  • Repair Link (Special use only)

4. Chain & Adjusters

The core lifting medium and adjustment tools.

  • Grade 80 Alloy Chain (Marked G80)
  • Shortening Clutch
  • Swivel (Bearing/Non-bearing)
  • Lifting Rings

Typical Applications

  • Chain slings (1 to 4 legs)
  • Construction & Civil Works
  • Manufacturing & Workshops
  • Steel Fabrication
  • General Industrial Lifting

Identification Marks

  • Grade: G80 / 8
  • Manufacturer’s ID
  • Size or WLL (Working Load Limit)
  • Traceability Batch Code

Grade 80 vs. Grade 100

Feature Grade 80 Grade 100
Strength Level Standard Industry Standard +25% Higher
Component Size Larger Smaller (for same WLL)
Weight Heavier Lighter
Cost More Cost-Effective Higher

⚠️ Safety & Compatibility Notes

  • DO NOT mix Grade 80 components with other grades (G70, G100) in the same sling leg.
  • Always match Grade 80 chain with Grade 80 fittings.
  • Observe sling angle factors and WLL reductions during lifts.
  • Inspect regularly for: Wear (>10%), Cracks/Distortion, Corrosion, or Heat Damage.

Why Choose Grade 80?

✅ Proven Reliability ✅ Wide Availability ✅ Cost-Effective ✅ Global Acceptance

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