Lifting sockets are specialized devices used in the precast concrete industry to facilitate the handling, transportation, and placement of precast elements such as beams, wall panels, and floor slabs. These sockets are designed to be embedded in the concrete during the casting process, allowing for efficient lifting and moving of heavy concrete components.
Types of Lifting Sockets
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HSB Lifting Socket: This socket features a round end with a cross-drilled hole, designed specifically for lifting precast concrete units. It requires a reinforcement bar to effectively transfer the load into the concrete. The HSB lifting socket is available in various sizes with safe working loads ranging from 500 kg to 12,500 kg, depending on the model.
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Waved Lifting Sockets: These sockets have a wavy shape that enhances force transfer into the concrete, making them suitable for moderately thick precast elements. They are typically made from steel and come in various sizes with threaded or round threads. The preferred lift angle for these sockets is ≤30°, which is crucial for ensuring safe lifting operations.
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Socket Lifting Anchors: These anchors are particularly useful for thin precast elements and can handle high load capacities (up to 250 kN). They consist of a round steel anchor-foot with a threaded sleeve that allows for secure attachment of lifting devices.
| Model |
M |
L (mm) |
Technical Diagram |
| Model-12 |
12 |
80 |
|
| Model-14 |
14 |
50/80/100/120 |
| Model-16 |
16 |
50/80/100/120/150 |
| Model-18 |
18 |
70/80/150 |
| Model-20 |
20 |
60/80/100/120/150/180/200 |
| Model-24 |
24 |
120/150 |
Applications
Lifting sockets are integral to various stages of precast concrete construction:
- Demolding: They allow for safe removal of precast elements from molds.
- Transporting: Sockets enable easy lifting and moving of heavy concrete pieces on-site or during transport.
- Placing: They help position precast elements accurately in their final locations.
Specifications
Lifting sockets come with different specifications based on their design and intended use:
- Load Capacity: Ranges significantly depending on the type of socket, from 500 kg to over 12,000 kg.
- Materials: Commonly made from galvanized steel or stainless steel to withstand harsh environmental conditions.
- Dimensions: Vary by model, with specific height and diameter measurements tailored to fit different applications.
In summary, lifting sockets are essential tools in the precast concrete industry, designed to enhance safety and efficiency during the handling of heavy concrete components. Their varied designs cater to different lifting needs and specifications, ensuring they can be used across a wide range of applications.
Production & Testing Facilities
Production Equipment
Pull Force Test Equipment
Manufacturing Facility
Frequently Asked Questions
What are lifting sockets used for in precast concrete?
Lifting sockets are embedded in precast concrete components during casting to facilitate safe and efficient demolding, transportation, and final placement of heavy structures like beams, slabs, and wall panels.
What is the difference between HSB and Waved lifting sockets?
HSB lifting sockets feature a round end with a cross-drilled hole requiring a reinforcement bar to transfer loads. Waved lifting sockets have a wavy shape designed to transfer forces directly into moderately thick concrete elements without requiring additional reinforcement bars.
What is the maximum lift angle recommended for waved lifting sockets?
To ensure safety and prevent structural failure during lifting operations, the preferred lift angle for waved lifting sockets should be less than or equal to 30° (≤30°).
What materials are lifting sockets made of to resist environmental wear?
Lifting sockets are commonly manufactured from hot-dip galvanized steel or premium stainless steel to provide high durability and resistance against corrosion in harsh outdoor construction environments.
What load capacities can these lifting sockets handle?
Safe working load capacities vary widely by type and size. They can range from 500 kg for smaller models up to 12,500 kg, while heavy-duty socket lifting anchors can handle high capacities up to 250 kN.
