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Product Description
Crosby HR-1000CT UNC Thread Swivel Hoist Rings are engineered for heavy-duty overhead lifting applications, providing a high-capacity, adjustable lifting point that allows loads to rotate and align naturally during lifting.
Designed for demanding environments, including offshore, subsea, and harsh industrial conditions, the HR-1000CT series offers superior performance with enhanced durability and corrosion resistance. These hoist rings feature a 360° swivel and 180° pivot, minimizing side loading and ensuring safer lifting operations.
Material:
Body: Alloy steel (quenched and tempered)
Bolt: High-strength alloy steel socket head cap screw (ASTM A574)
Finish: Corrosion-resistant coating (designed for harsh environments)
Specifications:
UNC (imperial) threaded design for North American applications
360° swivel and 180° pivot action for full load alignment
Designed for extreme-duty and offshore applications (CT = Corrosion Tough series)
Working Load Limit range: typically higher capacity than HR-125 series
5:1 design factor (ultimate strength = 5× WLL)
Individually proof tested to 2–2.5× WLL with certification
Fatigue rated for 20,000 cycles at 1.5× WLL
Designed to maintain full Working Load Limit at 90° loading angles
Each unit marked with:
Product Identification Code (PIC)
Working Load Limit
Manufacturer identification
Uses:
Offshore and subsea lifting operations
Heavy machinery and equipment lifting
Oil & gas and marine applications
Industrial fabrication and heavy rigging
Applications requiring high-capacity, multi-directional lifting
Key Features:
Heavy-duty design – Built for extreme and high-capacity lifting
Swivel functionality – 360° rotation and 180° pivot
Corrosion-resistant – Suitable for harsh and marine environments
Full-rated lifting – Maintains WLL at angular loads
Proof tested – Certified for overhead lifting
Traceability – PIC marking for identification
| Frame Size No. | Stock No. | Working Load Limit (lb) | Recommended Torque (ft-lb) | Bolt Size / Thread | Effective Thread Projection Length (in) | Overall Height (in) | Swivel Body / Base Diameter (in) | Bail Bend Radius (in) | Bail Diameter (in) | Overall Bail Width (in) | Bail Opening Height (in) | Weight Each (lb) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 6608112 | 1,900 | 28 | 1/2-13 x 2.75 | 1.20 | 6.32 | 1.96 | 1.25 | 0.75 | 4.20 | 2.50 | 3 |
| 2 | 6608103 | 1,900 | 28 | 1/2-13 x 2.25 | 0.70 | 6.32 | 1.96 | 1.25 | 0.75 | 4.20 | 2.50 | 3 |
| 2 | 6608121 | 3,000 | 60 | 5/8-11 x 2.25 | 0.70 | 6.32 | 1.96 | 1.25 | 0.75 | 4.20 | 2.50 | 3 |
| 3 | 6608130 | 4,800 | 100 | 3/4-10 x 3.00 | 0.85 | 8.59 | 2.96 | 1.63 | 1.00 | 6.25 | 3.25 | 11 |
| 3 | 6608139 | 6,200 | 160 | 7/8-9 x 3.00 | 0.85 | 8.59 | 2.96 | 1.63 | 1.00 | 6.25 | 3.25 | 11 |
| 3 | 6608148 | 8,300 | 230 | 1-8 x 3.50 | 1.35 | 8.59 | 2.96 | 1.63 | 1.00 | 6.25 | 3.25 | 11 |
| 4 | 6608149 | 12,500 | 470 | 1-1/4-7 x 5.00 | 2.10 | 11.31 | 3.71 | 2.00 | 1.44 | 8.13 | 4.00 | 24 |
| 4 | 6607669 | 20,000 | 800 | 1-1/2-6 x 5.50 | 2.60 | 11.31 | 3.71 | 2.00 | 1.44 | 8.13 | 4.00 | 27 |
| 4 | 6607727 | 20,000 | 800 | 1-1/2-8 x 5.50 | 2.60 | 11.31 | 3.71 | 2.00 | 1.44 | 8.13 | 4.00 | 27 |
| 5 | 6607670 | 28,000 | 1,100 | 2-4.5 x 7.50 | 3.20 | 15.15 | 4.00 | 2.69 | 1.75 | 11.64 | 5.00 | 69 |
| 6 | 6607671 | 45,000 | 2,100 | 2-1/2-4 x 9.50 | 3.73 | 19.93 | 5.75 | 3.00 | 2.75 | 14.47 | 5.62 | 157 |
Series: Crosby HR-1000CT Cold-Tuff Heavy Lift Swivel Hoist Rings with UNC Threads.
Material: All load-bearing components are heat-treated, quenched and tempered alloy steel. Except for the retaining ring, components are manufactured to a maximum hardness of 34 HRC.
Low-Temperature Performance: Primary load-bearing components are Charpy impact tested. The body, bushing, washer and bail meet a minimum average impact requirement of 31 ft-lb at -4°F; the bolt meets a minimum average requirement of 20 ft-lb at -150°F.
Bolt Specification: Alloy socket head cap screw manufactured to ASTM A320 Grade L7 or L43.
Identification: UNC-thread models use a blue color-coded top washer. The Working Load Limit and recommended torque are permanently stamped into each washer.
Proof Load: Individually proof tested to 2 times the Working Load Limit in both 90-degree and in-line orientations.
Design Factor: 5:1.
Inspection & Traceability: Individually serialized. Primary load-bearing components are 100% magnetic particle inspected, with certification.
Finish: Thermo-diffusion galvanized coating.
Compliance: Type approval and certification in accordance with DNV Offshore Standard DNV-OS-E101, DNVGL-ST-0378 for lifting appliances, and DNVGL-SI-0166.
Installation: Install using the manufacturer-specified torque. Minimum thread engagement length is one times the thread diameter.
Additional Information: Optional bolt sizes are available upon request.
| Specification | Value |
|---|---|
| Material Specification | Bolt: ASTM A320 Grade L7 or L43 Alloy Socket Head Cap Screw |
| Thread Diameter | 2-1/2 in |
| Installation Torque | 2100 ft-lb |
| Pivot Angle | 90deg |
| Thread Size | 2-1/2-4 |
| Mounting Type | Threaded |
| Load Capacity | 45000 lb |
| Specifications | Bolt specification A: 2-1/2 - 4 x 9.50 in; effective thread projection B: 3.73 in; individually proof tested to 2 times WLL in-line and at 90 degrees; individually serialized; primary load-bearing components 100% magnetic particle inspected |
| Series | HR-1000CT |
| Weight | 157 lb |
| Type | Heavy Lift Hoist Ring |
| Material | Load-bearing Components: Alloy Steel, Quenched and Tempered |
| Finish | Thermo-Diffusion Galvanized |
| Dimensions | Drawing dimensions (in): B = 3.73; C = 19.93; D = 5.75; E = 3.00; F = 2.75; G = 14.47; H = 5.62 |