Fabricated directly at Patna Central Works. Supplied with Mill Test Certificates (MTC) certifying tensile yield and dimensional tolerances.
Heavy Duty Acro Span Telescopic Centering Span (15ft / 18ft)

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JMK Engineering & Developers manufactures precision telescopic Acro Spans (also known as Centering Spans) fabricated from high-yield structural steel. Designed to eliminate dense under-propping during slab casting, bridging spans from 2.4 meters up to 4.5 meters (15ft) and 5.5 meters (18ft). Features outer lattice girder box with inner slide-out telescopic unit locked via high-tensile wedge pins and adjustment bolts for zero mid-span deflection under wet concrete loading.
Verified Technical Specifications
| Material Standard | Gauge / Thickness | Design Load Capacity | Standard Dimensions |
|---|---|---|---|
| IS 2062 Grade E250 / IS 1161 Steel | 2.0mm - 4.0mm | 20.0 Tonnes (Proof Loaded) | Open Length: 15ft (4.5m) / 18ft (5.5m) |
| Span Range | 2.40 m to 4.50 m (15 ft) / 5.50 m (18 ft) |
| Lattice Members | Heavy Structural Angles & T-Sections |
| Adjustment Type | Telescopic Slide with Hardened Wedge Pins |
| Load Capacity | Up to 2.8 Tonnes UDL at Maximum Extension |
| Deflection Rating | Exceeds IS 14687 deflection limits (< Span/500) |
| Finish | Dipped Red Oxide Primer |
| Manufacturer | JMK Engineering & Developers, Patna Works |
Turnkey Project Uses (Civil Engineering Context)
Designed for heavy monolithic pours, floor 4+ slab staging, retaining walls, and high-pressure culvert formwork with zero plate deflection.
Tested for extreme dynamic load distribution across elevated metro rail corridors, flyovers, and expressway segment assemblies.
Multi-Tenant Stock & Logistics Hubs
| Regional Logistics Node | Allocated Buffer | Dispatch Status | Site Lead Time (ETA) |
|---|---|---|---|
Delhi NCR Logistics Depot IMT Manesar / Dwarka Expressway Corridor | 5.2 Tons | In Stock | 2 Days Delivery |
Patna HQ Central Works Didarganj Industrial Zone, Patna | 12.8 Tons | Direct Works Buffer | Immediate Dispatch (0 Days) |
Kolkata Eastern Depot Dankuni Multi-Modal Terminal | 7.0 Tons | In Stock | 4 Days Delivery |
Mumbai Western Hub MIDC Taloja / JNPT Expressway Node | 6.4 Tons | In Stock | 3 Days Delivery |
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