RUBY Safety Pin Shackles provide a secured connection for lifting chains, wire rope slings and compatible rigging fittings. The bolt, nut and split pin work together to retain the shackle pin, making this design suitable for lifting setups where additional pin retention is required, including applications subject to vibration.
| Nominal size |
Dimension, mm (Tolerance +8%, -5%) |
WLL | Test force, kN | ||||||
|---|---|---|---|---|---|---|---|---|---|
| mm | d | D | W | B | L | E | t | Destructive test | Proof test |
| 5 | 5 | 6 | 10 | 15 | 22 | 14 | 0.33 | 19.5 | 6.5 |
| 6 | 6 | 8 | 12 | 20 | 29 | 17 | 0.50 | 29.5 | 9.9 |
| 8 | 8 | 10 | 13 | 21 | 31 | 21 | 0.75 | 44.2 | 14.8 |
| 10 | 10 | 11 | 17 | 26 | 37 | 25 | 1.0 | 58.9 | 19.7 |
| 11 | 11 | 13 | 18 | 29 | 43 | 27 | 1.5 | 88.3 | 29.5 |
| 13 | 13 | 16 | 21 | 33 | 48 | 33 | 2.0 | 118 | 39.3 |
| 16 | 16 | 19 | 27 | 43 | 61 | 40 | 3.2 | 189 | 62.8 |
| 19 | 19 | 22 | 32 | 51 | 72 | 48 | 4.7 | 277 | 92.3 |
| 22 | 22 | 25 | 37 | 58 | 84 | 54 | 6.5 | 383 | 128 |
| 25 | 25 | 29 | 43 | 68 | 95 | 60 | 8.5 | 501 | 167 |
| 29 | 29 | 32 | 46 | 74 | 108 | 67 | 9.5 | 560 | 187 |
| 32 | 32 | 35 | 52 | 83 | 119 | 76 | 12 | 707 | 236 |
| 35 | 35 | 38 | 57 | 92 | 133 | 84 | 13.5 | 795 | 265 |
| 38 | 38 | 41 | 60 | 98 | 146 | 92 | 17 | 1010 | 334 |
| 44 | 44 | 51 | 73 | 127 | 178 | 110 | 25 | 1480 | 491 |
| 51 | 51 | 57 | 83 | 146 | 197 | 127 | 35 | 2070 | 687 |
| 57 | 57 | 63 | 95 | 160 | 222 | 143 | 42.5 | 2510 | 834 |
| 63 | 63 | 70 | 105 | 184 | 267 | 152 | 55 | 3240 | 1080 |
| 76 | 76 | 83 | 127 | 200 | 330 | 165 | 85 | 5010 | 1330 |
| 89 | 89 | 95 | 146 | 241 | 381 | 203 | 120 | 7070 | 1670 |
| 102 | 102 | 108 | 165 | 432 | 432 | 229 | 150 | 8830 | 1970 |
Key Specifications
|
Parameter |
Specification |
|
Product Type |
Safety Pin Shackle |
|
Nominal Size |
5–102 mm |
|
Working Load Limit (WLL) |
0.33–150 t |
|
Material |
Forged Grade S(6) alloy steel |
|
Applicable Standard |
AS 2741 |
|
Minimum Breaking Force |
6 × WLL, as specified |
|
Proof Test |
2 × WLL, as specified |
|
Surface Finish |
Hot-Dip Galvanized / Electro-Galvanized / Color Painted |
|
Marking |
Size, WLL and batch number |
Product Advantages
Secure Pin Locking: The bolt, nut and split pin form a mechanical locking assembly that helps prevent accidental pin release, making the connection more secure during lifting operations.
High Load Capacity: The forged Grade S(6) alloy steel body provides the strength required for rated lifting loads, with WLLs ranging from 0.33 to 150 t.
Corrosion Resistance: Hot-dip galvanizing or electro-galvanizing protects the steel surface against corrosion, helping extend service life in suitable operating environments.
Connection Compatibility
Chain Slings: Available in nominal shackle sizes from 5–102 mm, with WLLs from 0.33–150 t. Match the pin diameter and internal width to the chain link dimensions, and ensure the chain WLL does not exceed the shackle rating.
Wire Rope Slings: The shackle accommodates compatible sling eyes or terminal fittings within its opening. Confirm the eye width, pin contact diameter and clearance against the selected model's dimensional drawing.
Other Rigging Hardware: Match the shackle's pin diameter, internal width and opening to the mating component. The complete assembly must remain within the WLL of its lowest-rated component.
Applications
Marine Equipment Handling: Lifting deck winches, pumps and other shipboard machinery during installation or maintenance.
Mining Equipment Maintenance: Removing crusher components, conveyor drive units and mine pumps for repair or replacement.
Steel Structure Erection: Connecting lifting slings to rated lifting lugs on steel beams, columns and fabricated frames.
Factory Machinery Moving: Connecting chain or wire rope slings to approved lifting points when relocating presses, CNC machines and production equipment.
Pin Installation and Use
Secure the Locking Assembly: Install the bolt, nut and split pin correctly according to the manufacturer's instructions before lifting.
Inspect Before Each Use: Check the body, pin, threads, nut and split pin for deformation, wear, cracks or missing parts.
Avoid Unapproved Loading: Do not exceed the WLL or apply side loading unless the specific model and manufacturer instructions permit it.
Remove Damaged Shackles: Do not use a shackle with damaged locking components or uncertain service condition.
Customization Options
Surface Finish: Hot-dip galvanized, electro-galvanized or color painted.
Size and Load Rating: Specify the required shackle size and WLL to match the lifting assembly.
Product Marking: Customized logo, identification code or batch marking, subject to production feasibility.
Packaging: Bulk packaging, individual packaging or export wooden cases.
Documentation: Request material certificates and load test reports according to project requirements.
Quality and Compliance
Material Verification: Grade S(6) forged alloy steel is specified for the shackle body. Material grade and mechanical properties should be verified against the applicable material certificate.
Proof Load Testing: Each applicable model should be tested to the specified proof load of 2 × WLL, with results recorded in the relevant test report.
Dimensional Inspection: Check pin diameter, body width, jaw opening and overall dimensions against the approved drawing to confirm compatibility with mating rigging components.
Marking and Traceability: Verify that the shackle's size, WLL and batch number are legible and correspond to the relevant product and inspection records.
Frequently Asked Questions
Q: What Is the Difference Between a Safety Pin Shackle and a Bolt-Type Shackle?
A: A safety pin shackle typically uses a bolt, nut and split pin to retain the pin, while the term "bolt-type shackle" may refer to the same general configuration. When comparing products, check the manufacturer's locking design and dimensional drawing rather than relying on the product name alone.
Q: Can Safety Pin Shackles Be Used for Towing or Vehicle Recovery?
A: Not automatically. Towing and recovery can introduce shock loads, dynamic forces and loading angles outside normal lifting conditions. Confirm that the specific model is approved for the intended operation rather than selecting it solely by its WLL.
Q: Can Safety Pin Shackles Be Used for Permanent Connections?
A: They may be suitable for some longer-term installations when the manufacturer permits this use and the locking assembly remains secure under operating conditions. For connections exposed to continuous vibration, movement or difficult inspection access, assess whether another approved connection design is more appropriate.
Q: Can Safety Pin Shackles Be Interchanged Between Manufacturers?
A: Not necessarily. Products with the same nominal size and WLL can differ in pin diameter, internal width, opening clearance and overall dimensions. Before replacing an existing shackle, compare the manufacturer's drawings and confirm that the replacement meets the original assembly requirements.
Q: Should Safety Pin Shackles Be Replaced After the Locking Pin Is Lost?
A: Do not return the shackle to service with a missing split pin or other locking component. Use only the replacement parts specified or approved by the manufacturer, and confirm that the nut, bolt and locking parts are compatible with the exact shackle model. Replace the complete shackle if its condition or component compatibility cannot be verified.
Q: Are Safety Pin Shackles Suitable for Repeated Lifting Cycles?
A: They can be used for repeated lifting when the model is suitable for the operating conditions and remains within its rated limits. For high-cycle operations, consider the frequency of use, vibration, wear, inspection access and the manufacturer's service recommendations when selecting the shackle.
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