Wire rope lifting loops are specialized devices used to lift precast concrete units safely and efficiently. These loops are typically made from high-grade steel wire that is swaged onto a steel ferrule, providing a robust and reliable lifting solution. They are designed to be compatible with various threaded lifting inserts, allowing for easy integration into precast concrete elements.
Key Features of Wire Rope Lifting Loops
- Material and Construction: Made from high-quality wire rope, these loops are often zinc-plated for corrosion resistance and durability.
- Load Capacity: Wire rope lifting loops come in various sizes and load capacities, typically ranging from 0.5 tons to 12.5 tons. Some systems can handle even heavier loads, depending on the specific design and application.
- Thread Compatibility: They are available in both metric (M) and round (Rd) thread types, allowing them to be used interchangeably with compatible sockets without compromising load capacity.
- Safety Markings: Each loop is clearly marked with the manufacturer's details, the safe working load (SWL), and a unique serial number to ensure compliance with safety regulations.
- Reusability: These loops can be reused as long as they are inspected for damage before each use. It is crucial to check for any signs of wear, such as kinks or corrosion.
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Ensure that the thread is fully bottomed out in the socket before lifting.
Regular Product Parameters
Wire rope lifting loops vary in specifications based on their size and intended use. Here are some typical parameters:
Metric Thread Standard Wire Rope Lifting Loops
| Part Code |
Thread |
Height (mm) |
Load Class (t) |
| LPM10 |
M10 |
155 |
0.35 |
| LPM12 |
M12 |
155 |
0.50 |
| LPM16 |
M16 |
155 |
1.2 |
| LPM20 |
M20 |
215 |
2.0 |
| LPM24 |
M24 |
255 |
2.5 |
| LPM30 |
M30 |
300 |
4.0 |
Round Thread Standard Wire Rope Lifting Loops
| Part Code |
Thread |
Height (mm) |
Load Class (t) |
| LPRD12 |
Rd12 |
155 |
0.50 |
| LPRD16 |
Rd16 |
155 |
1.2 |
| LPRD20 |
Rd20 |
215 |
2.0 |
| LPRD24 |
Rd24 |
255 |
2.5 |
| LPRD30 |
Rd30 |
300 |
4.0 |
| LPRD36 |
Rd36 |
340 |
6.3 |
| LPRD42 |
Rd42 |
425 |
8.0 |
| LPRD52 |
Rd52 |
550 |
12.5 |
Applications
Wire rope lifting loops are commonly used in:
- Precast Foundations: For heavy lifting applications where visibility of the lifting points is limited.
- Beams and Retaining Walls: Ideal for elements that require secure lifting points during installation.
- General Precast Concrete Units: Suitable for various shapes and sizes of precast components in construction projects.
These loops enhance safety during lifting operations by providing reliable attachment points for cranes while ensuring compliance with industry standards for load handling.
Frequently Asked Questions (FAQ)
What are wire rope lifting loops used for?
They are specialized devices used to lift precast concrete units safely and efficiently. They are designed to connect securely with threaded lifting inserts embedded in precast elements.
Can metric and round thread lifting loops be used interchangeably?
Yes, wire rope lifting loops are available in both metric (M) and round (Rd) thread types, allowing them to be compatible with matching sockets without compromising the overall load capacity.
What is the safe working load capacity range of these lifting loops?
The typical load capacity ranges from 0.35 tons (for smaller metric sizes like M10) up to 12.5 tons (for larger round sizes like Rd52). Some specialized systems can handle even heavier loads.
Are wire rope lifting loops reusable?
Yes, these loops are reusable. However, they must be thoroughly inspected for damage, such as kinks, wear, or corrosion, before every use to ensure lifting safety.
What is the most critical step before starting the lift?
It is critical to ensure that the thread of the wire rope lifting loop is fully bottomed out inside the socket before initiating any lifting operations.
