A mild steel (MS) adjustable span is a telescopic tubular steel prop used in construction for temporary support of formwork, beams, and slabs. Its key features include an adjustable height via a threaded screw mechanism, inner and outer tubular sections, and a sturdy, durable construction to handle heavy loads. They provide a stable and adjustable vertical support system for slab shuttering, making it possible to eliminate vertical propping and allow for clear space underneath. Components and design Telescopic Design: An inner and outer tubular section allow the span's height to be adjusted for different construction needs. Threaded Screw Mechanism: A screw at the bottom allows for precise height adjustment by rotating a handle or nut. Base Plate: A flat base plate at the bottom provides stability and supports the load on the ground. Lattice: Often made from 10 mm diameter round bars for structural integrity. Specifications Material: Mild steel (MS). Outer & Inner Members: Typically made from 14/12 gauge MS sheet. Bottom Plate: The bottom of the outer member is made from a 50x6 mm MS plate, while the inner member uses a 40x40x6 mm 'T' angle. Bearing Angles: Often 75x75x8 mm in size. Key uses and benefits Slab support: Used in shuttering systems for supporting RCC slabs during casting. Temporary support: Provides temporary load-bearing support during construction, renovation, or maintenance. Versatility: The adjustable nature makes them adaptable to various heights and requirements on a site. Eliminates propping: Creates clear space underneath the structure being supported. Other details Durability: They are known for their long functional life and low maintenance. Load capacity: They have a high load-bearing capacity, making them suitable for heavy-duty applications. Surface finish: They are often painted or hot-dip galvanized for corrosion resistance.
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