1. Basic parameters and specifications

1. Rated load range

Common specifications of TG209 shackle cover 0.33T to 150T

2. Size parameters

– Cross pin diameter: 6-108 mm (slightly different for different brands).

– Buckle body diameter: 6-104 mm, the specific size varies with different loads.

2. Material and process

1. Material

– Mainstream material: alloy steel (such as 40Cr, 45# steel), some brands use high-strength steel or carbon steel.

– Surface treatment: electrogalvanizing, hot-dip galvanizing, spraying or Dacromet coating to enhance corrosion resistance.

2. Manufacturing process

– Die forging process: Most of them use die forging combined with heat treatment to improve impact resistance and elongation.

– Special process: Crosby shackles are quenched and tempered to meet the impact resistance requirements of low temperature environments (-20℃ to -40℃).

3. Safety performance and standards

1. Safety factor

– Generally 4 times, some high-end products can reach 6-8 times.

– The test load is usually 2 times the rated load (some large tonnage models are 1.33-1.5 times).

2. Certification and standards

– Comply with American standards (ASME B30.26) and European standards (EN13889:2003), and some are certified by classification societies such as ABS, DNV, and Lloyds**.

4. Application areas

– Industry coverage: power, metallurgy, petroleum, machinery, ports, mining, construction, aerospace, etc.

– Typical scenarios: lifting equipment connection, rescue operations, ship anchoring, large-scale transportation, etc.