Galvanized BS1139 Scaffolding Swivel Screw Base Jack Nut For Tower Scaffold

Galvanized BS1139 Scaffolding Swivel Screw Base Jack Nut For Tower Scaffold

Production Information

Commodity Name	Scaffolding Swivel Screw Base Jack
Main Material	Q235 or Q345
Jack Tube Outer Diameter	35/38mm or Customized
Jack Tube Thickness	4mm or per design
Jack Length	400-1000mm or Customized
Base Plate	150x150x6mm
Surface treatment	Painted, galvanized, HDG, powder   coated
Advantages	Competitive price, High-quality   products, 24-hour after-sales service
Port	Nanjing/XINGANG
Currency	USD, RMB
Payment	L/C, T/T, 30% in advance
Package	Steel Pallet Or Customized

How is base jack used in Scaffolding?

The base jack levels the scaffold tower when the tower legs are placed on surfaces of different elevations. It ensures all the legs will have (appx) equal bearing on the substrate(s) the tower rests upon.

Unless the jack is placed on something solid, it will need dunnage underneath it to properly transfer the leg load into the soil.

It is also used to ‘fine tune’ the height of the tower itself, so that height adjustments of up to around 12″ can be achieved.

Essentially, a base jack is a load bearing base and is used to hold standards/uprights (the vertical tubes) in place and help transfer the weight of the structure to the ground. The base jack is used to help spread the load and has a shank in the center to hold the tube in place. To eliminate sway, a facade brace is fitted to the face of the scaffold every 30 meters. The spacing of the upright scaffolding and base jacks is usually around every 2.1m but this can be reduced to 2m or 1.8m depending on the weight of the structure.

Product Images

Other scaffolding material we common export

1) British Standard Markings on goods

2) D/F Double, Sweivel, Sleeve, Putlog, BRC, Girder Couplers

3) Hot-dip Galvanized Scaffolding Steel Tubes

3） Ringlock, Cuplock, Kwikstage, Haki, Frame, Prop Scaffolding Systems

4) Other Accessories