Products Description
Scaffolding screw jack base also be called adjustable base jack, leveling Jack Base, scaffolding screw base, scaffolding leg, scaffold jack support. It is used to level scaffolding and keep scaffold even.
We produce all types of scaffolding screw jack base, such as adjustable screw jack base, U head jack, Forkhead jack, Swivel screw jack base etc. All of scaffolding screw jack bases are compitable with scaffolding systems, including ringlock scaffolding system, cuplock scaffolding system, kwikstage scaffolding, shoring frame scaffolding system, H frame scaffolding system, Crab 60 shoring sytsem.
| Hollow Screw Jack Base | Size | Weight (kg) |
 |
38x4x300mm | 2.5 |
|
|
3.2 | |
| 38x4x600mm | 3.5 | |
| 38x4x800mm | 4.3 |
| Solid Screw Jack Base | Size | Weight (kg) |
 |
26x600mm | 3.46 |
|
28x600mm |
3.83 | |
| 32x600mm | 4.66 | |
| 34x800mm | 5.45 |
Test Of Adjustable base Jackbest
Choose the screw jack base that suits you best
Loading Test of Adjustable Screw Jack 
How Much Weight Can 650mm Scaffold Screw Jacks Take?
|
OD38x650mm Scaffold Screw Jack Ultimate Load Test Result |
|
| Height | Ultimate Load |
| 100mm | 175 KN |
| 200mm | 142 KN |
| 300mm | 138 KN |
| 400mm | 107 KN |
| 500mm | 115 KN |
| 600mm | 136 KN |
There are two kinds of threads for screw jack bases: Trapezoid thread (also known as square thread) and round thread. Square thread base jack is with 6.35mm(4TPI-four teeth per inch)teeth distance. The teeth distance of the round thread scaffolding jack is 8mm. According to the different teeth distance, we call the round thread jack base a quick thread scaffolding base jack or Coarse scaffolding Jack base.
There are two kinds of threads for screw jack bases: Trapezoid thread (also known as square thread) and round thread. Square thread base jack is with 6.35mm(4TPI-four teeth per inch)teeth distance. The teeth distance of the round thread scaffolding jack is 8mm. According to the different teeth distance, we call the round thread jack base a quick thread scaffolding base jack or Coarse scaffolding Jack base.
There are many types of scaffolding jack nuts. Include: Cast Iron Type Jack Nut and Drop Forged Type Jack Nut.
Drop forged screw jack nuts are more expensive than that of cast iron jack nut. Secondly, the inner screws of the screw jack nut need machine to do threading; the cost is a little higher.
Jack Nut
Among them, the cast iron type of jack nut is the most required. The reason is
Cheap Price.
No extra processing fee; inner threads come out along with the product
Quick Delivery.
Heavy-Duty Load.
According to the scaffold screw jack nut weight, there are light, heavy, and medium-weight screw jack nuts. You can choose the style based on project requirements. OEM logo is also available.
Base plate of screw Jack Base
The base plate sizes of the scaffold screw jack base are customized. While the most used base plate sizes are 150x150mm, 140x140mm, 120x120mm, etc.
Scaffold screw jack height is customized. You can choose the screw jack max adjusting height. You can also require the overall height of the scaffold screw jacks.
Finish Treatment
----For long lifespan
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Scaffold screw jacks are able to be finished in painted, zinc-plated (cold galvanized), or hot-dip galvanized. Hot-dip galvanized(HDG) scaffolding jacks are the most durable in long-term use.
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