Swivel base jacks are commonly used in construction sites where the ground is uneven or sloped. They can provide the safety of scaffolding and suitable for areas who requires leveling adjustments, such as high-rise buildings or infrastructure works.

|
Product |
Specification(mm) |
Outer Diameter |
Thickness |
Weight(kg) |
|
Solid T jack base |
32*600*120*120*4 |
48.3mm |
4.75mm |
3.99 |
|
Solid T jack base |
34*600*140*140*5 |
48.3mm |
4.75mm |
4.79 |
|
Solid U jack base |
32*600*120*120*50*4 |
48.3mm |
3.5mm |
5.17 |
|
Solid U jack base |
34*600*150*150*50*4 |
48.3mm |
4.5mm |
5.52 |
|
Hollow jack base |
38*5*600*150*150*6 |
48.3mm |
4.75mm |
3.84 |
|
Hollow U jack base |
38*5*600*185*150*50*6 |
48.3mm |
4.75mm |
4.75 |
The Application
- The scaffolding levelers are usually used in Frame scaffold.
- The hollow base jack used in modular scaffold, for example the Ringlock system, Cuplock system, and Kwikstage system.
- U jack base is used for securely bear the load of primary and secondary beams. base jack can adjust the process of scaffolding structures, which ensure stable for your construction work.
Functions of Different Scaffold Jack Attachments
The same adjustable scaffold jack can perform various functions when paired with different attachments. By swapping top or bottom connectors, it can be used for leveling, beam support, formwork support, or slope construction. Let's explore more applications of Scaffold jacks!
Universal Jack + Fixed Socket Base
The adjustable jack base commonly serves as a leveling foot at the bottom of scaffolding. When connected to a bowl-type drop head, it can also support filler beams and bowl-type floor beams.
Universal Jack + Fixed Universal Joint Head
This adjustable U-type jack is used at the top of scaffolding to support scaffolding timber, steel beams, aluminum beams, and similar structures. U-type universal jack scaffolding is widely used in concrete and construction work for various types of floor and beam formwork.
Universal Jack + Fixed Fork Head
Adjustable fork head jacks support main and secondary scaffolding beams in four directions. Suitable for formwork of various shapes for slabs and beams.
Universal Jack + Rotating Base
Rotating jacks for slope foundation construction.
Key Components of a Scaffold Jack
1.Threaded Shaft: The primary component of a screw jack, used to adjust height.
2.Base Plate: Mounted at the bottom of the screw jack, it helps prevent sinking or loss of balance.
3.Adjusting Nut: Used to control the height of the scaffolding legs during vertical adjustment.
4.Handle or T-Bar: In some Scaffold jacks, a handle or T-bar is used to turn the nut, making it easier to raise or lower the scaffolding height.
Certificate and Loading Test
The inspection before loading are based on OSHA, EN, BS, and ANSI international standards, all the steel props and accessories will issue certification sheet before loading on container, which ensure the dependability and safety of your orders. We will test from diameter, wall thickness, loading bear capacity, accessories size, and the surface treatment.

Factory Ability
Irontrix is a leading manufacturing company based in China, focused on the production of high-quality U head base jack. The production process covers steps from cutting, welding,punching, surface treatment, assembly, and final inspections, which ensure each product meets the international standards of quality.
FAQ
Q: What is the difference between an adjustable jack base and a U-head jack?
A: The primary difference is in the application:
Adjustable Jack Base: Provides adjustable height and stability to the base of the scaffold structure.
U-head Jack: Designed specifically for securing and supporting the top of vertical scaffold posts or beams.
Q: How do I maintain a scaffolding adjustable jack base and U-head jack?
A: Regular maintenance involves checking for signs of wear, rust, or deformation. Ensure that the threaded stem on the jack base moves smoothly and that the U-head jack securely grips the scaffold tube. Clean the components regularly to prevent debris buildup, and store them in dry conditions to prevent corrosion.
Q: Can adjustable jack bases and U-head jacks be used in all scaffolding systems?
A: Yes, both adjustable jack bases and U-head jacks are compatible with most standard scaffolding systems. However, always check the specifications to ensure compatibility with the scaffold type and load requirements. Some systems may require specific types of jacks for optimal performance.
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