Concertina Coil Manufacturer & Supplier
Manufactured in Howrah • Safeguarding Sensitive, Industrial & Government Assets Across India
SAI INDUSTRIES produces engineered, heavy-duty Concertina Razor Wire Coils designed to create an impenetrable, three-dimensional security matrix along high-risk perimeters. Operating out of our advanced production facility in Howrah, West Bengal, we craft cross-clipped helical spiral coils using high-tensile spring steel core wire permanently wrapped in razor-sharp galvanized steel blades.
Engineered to expand into rigid, interlocking loops, our concertina coils deliver immediate physical and visual intrusion deterrence. Whether installed along boundary walls, integrated atop chain link structures, or deployed as temporary ground barriers, we supply custom loop diameters, blade profiles (BTO-22 / CBT-65), and heavy zinc coatings to suit rigorous defense and industrial requirements across Kolkata, West Bengal, and nationwide networks.
Certified high-tensile spring steel • Heavy hot-dip zinc coating • Direct factory dispatch from Howrah, WB.
Technical Specifications & Build Options
| Material Core & Blade |
Standard: Hot-Dip Galvanized Iron (GI), High-Carbon Spring Steel Core, SS 304/316 Stainless Steel Customization Available: Heavy-zinc coated blade sheets (180–275 g/m²), Marine-grade stainless steel. |
| Coil Diameter (Loop Size) |
Standard: 450mm (18"), 600mm (24"), 730mm (29"), 900mm (36") expanded loops Customization Available: Custom loop sizing from 300mm to 1050mm for specialized installations. |
| Blade Configuration |
Standard: BTO-10, BTO-22 (Medium Barbed Blade), CBT-60, CBT-65 (Heavy Fish-Hook Blade) Customization Available: Bespoke blade pitch and thickness for defense-grade security. |
| Core Wire Thickness |
Standard: 2.50mm High-Tensile Spring Galvanized Wire (Tensile Strength: 1400–1600 MPa) Customization Available: 2.50mm High-Tensile Spring Galvanized Wire. |
| Coil Stretch Length |
Standard: 6 Meters to 10 Meters per expanded coil (depending on clip count and spacing) Customization Available: Extended coil stretch lengths up to 15 meters per roll. |
| Clipping System |
Standard: 3-Clip or 5-Clip Heavy Galvanized / Stainless Steel Interlocking Clips Customization Available: Dual-ring heavy clipping for high-wind and high-stress zones. |
| Overall Customization Available | Customization Summary: Fully tailored factory-direct options are available for loop dimensions, blade patterns, core wire thickness, stretch length ratios, and heavy-duty clipping configurations. |
Core Engineering Advantages
MAXIMUM ANTI-CLIMB DETERRENT
Expanded helical coils form a tangle-proof, razor-sharp mesh matrix that stops intruders from gaining a foothold.
SHEAR & CUT RESISTANT CORE
High-tensile inner spring steel resists standard bolt cutters, hand tools, and heavy mechanical shear attempts.
LONG-LASTING WEATHERPROOFING
Thick hot-dip zinc coating shields razor edges and steel core wire against oxidation, humidity, and atmospheric rust.
VERSATILE MOUNTING CAPABILITY
Attaches easily to Y-angle extension arms, wall toppings, security fences, or directly along ground lines.
Key Industry Applications
Fortify High-Security Boundaries with Eastern India’s Trusted Concertina Wire Manufacturer
From our manufacturing hub in Howrah, we engineer and supply high-strength Concertina Razor Wire Coils designed to secure critical sites across Kolkata, West Bengal, Bihar, Odisha, Jharkhand, Assam, and pan-India regions. Reach out to our technical sales team today for custom coil specifications and direct factory quotes.