Telescopic Props: Adjustable and Reliable Support for Construction
Telescopic props—also known as Adjustable Prop Jacks—are indispensable for supporting formwork and shuttering during concrete pours. At Avanza Steel, our props combine high-grade MS ERW tubing, precision threading, and Prop Sleeve integration for safe, reliable height adjustment in residential, commercial, and infrastructure projects.
What Is a Telescopic Prop?
A telescopic prop consists of two nested steel tubes—a fixed outer sleeve and an inner member that slides to adjust height—locked in place via a Prop Sleeve (threaded nut) and an L&T nut system. This design allows rapid, tool-free fine-tuning of formwork heights, ensuring level and plumb panels even on uneven terrain.
Why Avanza Steel?
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Precision & Safety: Hot-dip painted MS ERW pipes (48.3 mm ID/60.5 mm OD) with 3.0 mm/3.2 mm wall thickness resist buckling under heavy loads.
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Integrated Prop Sleeve: Proprietary Prop Sleeve design provides seamless compatibility and corrosion resistance for thread engagement.
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Rapid Adjustment: L&T hexagonal nuts permit ±150 mm fine adjustment without jacking tools, accelerating formwork setup.
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High Load Capacity: Available in hollow (10 kN) and solid (up to 25 kN) variants for diverse formwork demands.
Feature | Specification |
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Technical Specifications
Applications & Use Cases
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Residential & Commercial Slab Formwork:
Telescopic props adjust to varying floor heights in beam-and-block slab systems, ensuring a level soffit and uniform concrete cover.
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Core Wall & Shear Wall Systems:
Heavy-duty solid props support high-pressure vertical formwork up to 6 m per bay, critical for tall-structure cores.
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Bridge Pier and Infrastructure Support:
Props with extended ranges (up to 5.65 m) accommodate deep girder and pier cap formwork, maintaining precise alignment over variable ground elevations.
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Temporary Falsework & Shoring:
Rapid-deployment hollow props provide efficient shore support during under-slab castings, scaffold towers, and stairwell formations.
Maintenance & Safety Inspections
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Pre-Use Inspection: Verify no dents or severe corrosion on tubes; ensure Prop Sleeve threads are clean and undamaged.
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Routine Checks: Monthly torque-test a sample of L&T nuts to 25 Nm; replace any with thread stripping or deformation.
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Post-Pour Care: Wipe down tubes to remove concrete splatter; apply light machine oil to threaded sections to prevent galling.
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Storage Guidelines: Store vertically in a dry, covered area; avoid stacking more than five props to prevent tube deformation.
Installation & Best Practices
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Site Setup
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Begin by placing the MS Prop directly on the work surface. Each prop is equipped with an integrated base plate, ensuring stable load distribution without the need for additional soleboards or plates.
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Position outer sleeve vertically, ensuring base is plumb.
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Height Adjustment
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Slide the inner tube to approximate height.
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Engage the Prop Sleeve threads by hand, then tighten the L&T nut to lock the inner tube securely.
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Use a torque wrench set to 25 Nm to prevent over-torquing or thread damage.
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Alignment Verification
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Check plumb alignment with a spirit level on both faces of the prop.
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Fine-tune using the L&T nut: ±150 mm of precise adjustment accommodates uneven formwork conditions.
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Formwork Integration
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Attach Timber Waler Plates or MS Channel bearers across adjacent props for load distribution.
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Secure plywood or steel shuttering panels as per design loading charts.
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Ready to streamline your formwork operations with Avanza Steel’s telescopic props?
👉 Download the full Product Brochure for detailed part codes, dimensional drawings, and load charts.
👉 Contact our team at avanzasteel@gmail.com or +91 33 4000 7575 to request a site-specific quote, arrange a factory tour, or schedule an on-site technical consultation.