Double Chain Hoist Hook

Double Chain Hoist Hook

We manufacture a high-strength G80 Double Ring Lifting Buckle, also known as a Butterfly Buckle, designed for secure chain connection and tension adjustment in demanding rigging and hoisting operations. Forged from superior G80 alloy steel, this essential rigging component offers exceptional strength, durability, and reliability. With a load-bearing capacity ranging from 1 to 32 tons, it is a critical fastener for heavy industry, mining, construction, and general lifting applications.

Product Details

This specialized connector is engineered for safety and performance in overhead lifting.

  • Double-Ring Structure: The buckle consists of two interlocking steel halves that form a secure, closed loop when assembled. This design provides a robust connection point for joining chains or attaching them to other rigging hardware like master links and hooks.
  • Detachable Center Component: The two halves are joined by a central, detachable load pin and a safety sleeve or collar. This allows for quick and easy assembly and disassembly while ensuring the connection remains secure under load.
  • High-Strength G80 Alloy Steel: The buckle is manufactured from high-strength, quenched, and tempered alloy steel, meeting the G80 grade standard for overhead lifting. This ensures a high strength-to-weight ratio and excellent fatigue resistance.
  • Protective Finish: The buckle is finished with a durable layer of sprayed plastic, typically in a high-visibility red color. This coating provides excellent resistance to corrosion and wear while making the component easy to identify during safety inspections.

Product Parameters

The following table details the comprehensive technical and commercial specifications for our Double Ring Lifting Buckles. We offer full OEM/ODM services for custom requirements.

General Specifications:

ParameterDescription
Product NameDouble Ring Lifting Buckle / Lifting Butterfly Buckle
MaterialHigh-Strength Alloy Steel
GradeG80
Load Capacity Range1 ton to 32 tons
Surface TreatmentSprayed Plastic
ColorRed (standard) or Customer-Specified Colors
ApplicationHeavy Industry, Mining, Retail Industry, General Industry, Automotive Industry, Lifting Industry
Primary UseChain Connection, Tension Adjustment, Load-Bearing Tasks
CustomizationOEM/ODM Accepted, Custom Logo
Place of OriginHebei, China

Product Features

Our G80 Butterfly Buckles are designed for maximum safety and a long service life, offering several key advantages:

  • Certified Lifting Strength: Made from G80 alloy steel, this buckle is rated for overhead lifting and provides a reliable, high-strength connection.
  • Secure and Reliable Design: The interlocking double-ring structure with a secured center pin ensures the buckle will not fail or open unexpectedly under its rated load.
  • Versatile Application: Ideal for connecting chain slings, adjusting sling leg lengths, and as a general-purpose rigging connector.
  • Exceptional Durability: The combination of alloy steel and a protective plastic coating provides superior resistance to abrasion, impact, and corrosion.
  • High Visibility: The standard bright red color makes the buckle easily visible, aiding in safety checks and proper rigging assembly.
  • Wide Range of Capacities: Available in various sizes to match chains and lifting requirements from 1 ton all the way up to 32 tons.

Instructions for Safe Use

Proper use is critical for safety in all lifting operations. Adhere strictly to the following guidelines:

  1. Matching Check: Always use a buckle that matches the grade (e.g., G80) and working load limit (WLL) of the chain and other rigging components being used.
  2. Pre-Use Inspection: Before every use, visually inspect the buckle for any signs of cracks, deformation, excessive wear, or other damage. Do not use if any defects are found.
  3. Correct Installation: Ensure the chain is properly seated within the buckle and that the central load pin and safety sleeve are firmly and correctly assembled.
  4. Proper Loading: Ensure that the load is applied evenly and in a straight line. Strictly prohibit overloading, shock loading (sudden jerks), and oblique (side) pulling, as these can cause failure.
  5. Regular Maintenance: Periodically inspect the buckle for structural integrity and connection performance. Immediately remove from service and replace any buckle that shows signs of damage or significant wear.