Adjustable steel screw base jack consists of a screw nut, a screw rod and a base plate. The base plate is welded to the end of the screw rod to become a whole. The screw nut can rotate freely on the screw rod to adjust the extension length of the screw rod and support the vertical standard of scaffolding. It can reliably fix various kind of scaffolding system, support frames and other components, and can be conveniently applied to various load supports.

Specification

Material: steel tube, steel round bar

Grade: Q235, Q345

Surface treatment: oiled, painted, galvanized

Type: solid, hollow

Length: 400 ~ 700mm

Diameter: 28 ~ 48mm

U head: 120X100X45X4mm, 150X120X50X4.5mm, 150X150X50X6mm or customized

Weight: 1~5kgs

Packing: by wooden pallet or iron pallet

Application

1. According to different screw materials, adjustable steel screw base jack can be divided into hollow base jack and solid base jack. The lead screw of the hollow base jack is made of thick-walled steel pipe, which is lighter. The solid jack is made of steel round bar, which is heavy.

2. According to whether it has wheels or not, adjustable steel screw base jack can be divided into: universal base jack and leg wheel base jack. The wheel base jacks are generally galvanized and are used in the lower part of the movable scaffold to facilitate the promotion of the construction process; universal base jacks are used in the construction of engineering buildings to support stability.

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