Swivel hoist ring Grade 100

360° swivel180° swivelscrew-in

Product Overview
The Grade 100 Heavy Lift Swivel Hoist Ring is a high-performance lifting component designed for demanding industrial applications. It provides 360-degree rotation and 180-degree pivot capability, allowing full-range movement and automatic alignment with the direction of the load. This design eliminates the risk of bolt bending or breaking caused by side-loading and is intended for lifting heavy machinery, dies, and structural components.

Introduction
Engineering for Multi-Directional Loading
Standard lifting eyes are often limited to vertical pulls; the Grade 100 Heavy Lift Swivel Hoist Ring solves this by utilizing a mechanical swivel joint that prevents catastrophic failure under side-loading through automatic alignment of the bale with the tension vector, ensuring the lifting force is transmitted through the strongest axis of the component.

Advanced Metallurgy and Heat Treatment
The product is manufactured from CrNiMo alloy steel with quenching and tempering (Q&T) to produce tempered martensite structure, achieving high toughness, fatigue resistance and ductility to withstand shock loads without brittle fracture.

Safety and Reliability in Operation

• Torque-Controlled Installation: Each hoist ring is stamped with a specific torque value. Proper torquing ensures the bolt remains pre-loaded against the mounting surface, preventing loosening during rotation.
• Fatigue Rated: Engineered to withstand 20,000 cycles at 1.5 times the WLL (Working Load Limit), suitable for high-frequency lifting in automotive and aerospace manufacturing.
• Environmental Protection: High-visibility powder coating applied by electrostatic bonding provides wear-resistant protection against oxidation in marine or industrial environments.

Parameter
Thread Size | Size | Working Load Limit | Dimensions: A B C E F G G J K L CH ch | Weight (Lbs)
M14 | 1.3 | 78.0 | 40.0 19.0 45.0 79.0 15.0 137.0 56.0 43.5 21.0 22.0 10.0 | 2.42
M16 | 1.6 | 78.0 | 40.0 19.0 45.0 79.0 15.0 137.0 56.0 45.5 25.0 24.0 10.0 | 2.42
M18 | 2.0 | 78.0 | 40.0 19.0 45.0 79.0 15.0 137.0 56.0 46.0 27.0 27.0 12.0 | 2.42
M20 | 2.5 | 78.0 | 40.0 19.0 45.0 79.0 15.0 137.0 56.0 47.0 30.0 30.0 12.0 | 2.42
M24 | 4.0 | 112.0 | 58.0 27.0 68.0 116.0 21.0 205.0 85.0 62.5 36.0 36.0 14.0 | 6.61
M27 | 5.0 | 112.0 | 58.0 27.0 68.0 116.0 21.0 205.0 85.0 64.5 40.0 41.0 14.0 | 6.61
M30 | 6.3 | 112.0 | 58.0 27.0 68.0 116.0 21.0 205.0 85.0 66.0 45.0 46.0 17.0 | 6.61

Standards
The Grade 100 Heavy Lift Swivel Hoist Ring is manufactured and tested to meet or exceed the following global standards:

• ASME B30.26 — Rigging hardware safety standard for cableways, cranes, derricks, hoists, hooks, jacks, and slings.
• EN 1677-1 — Components for slings (forged steel components), adapted for Grade 100 capacity.
• ASTM A952/A952M — Standard specification for forged Grade 100 alloy steel lifting components.
• DIN EN ISO 9001 — Quality management systems requirements.

Testing and Quality Assurance

• 100% Proof Testing: Every hoist ring is proof loaded to 2.5 times the WLL for structural reliability.
• Magnetic Particle Inspection (MPI): Non-destructive testing to ensure freedom from surface and sub-surface defects of the forged body.
• Hardness Testing: Verified to 38–42 HRC to balance strength and ductility.

Safety and Maintenance

• Installation: Use recommended torque values and ensure the mounting surface is flat and provides full contact with the hoist ring base.
• Inspection: Before each use, check for free rotation and pivoting, and inspect the bolt for thread damage or deformation.
• Angular Loading: The WLL is maintained at any angle of pull provided the hoist ring is allowed to align itself with the load.
• Discard Criteria: Remove from service if the bale is bent, visible wear exceeds 10% of the original dimension, or if the bolt shows signs of elongation.

Caractéristiques / spécifications techniques

• Rotation: 360-degree swivel
• Pivot: 180-degree pivot capability
• Material: CrNiMo alloy steel
• Heat treatment: Quenching and Tempering (Q&T) to produce tempered martensite
• Proof testing: Each unit proof loaded to 2.5 × WLL
• Fatigue rating: Designed for 20,000 cycles at 1.5 × WLL
• Hardness: 38–42 HRC
• Surface protection: High-visibility powder coating (electrostatic bonding)
• Non-destructive testing: Magnetic Particle Inspection (MPI)
• Installation control: Stamped torque values for torque-controlled installation
• Maintenance: Inspect rotation/pivot and bolt condition before each use; discard if deformation or >10% wear