Questions, answered.

Vajra International is a direct manufacturer of industrial electrical, structural, and precision metal systems — cable trays, earthing and grounding, copper busbars, electroforged gratings, fabricated steel and towers, solar mounting structures, and CNC machined and sheet-metal components — across mild steel, stainless steel, aluminium and copper.

A direct manufacturer. All production runs under single-facility control across three production units, with no intermediaries — which removes trading-house markups and gives full control over quality, finish and delivery.

Vajra International is the export division of a 50-year-old Kolkata manufacturing group, operating from a 45,000+ sq.ft facility with a 120+ workforce across three production units.

Roll-forming lines, press brakes, and shearing capacity up to 12 mm, with in-house punching, bending and welding across mild steel, stainless steel and aluminium.

Multi-axis CNC machining is held to ±0.01 mm tolerance, suitable for defence-grade precision components and small-batch production.

Hot-dip galvanizing (IS 4759, ASTM A123), electro-galvanizing, powder coating and paint finishing — all owned and controlled in-house, which protects finish quality and delivery schedules.

Yes. Order flexibility runs from prototype quantities through to full container loads against the same controlled process.

Roll-forming lines run three shifts and can produce approximately 5,000 metres of cable tray per day across all widths. Custom widths outside our standard range (50–1000 mm) can be tooled within 2–3 weeks.

Yes — custom design and fabrication to buyer-supplied drawings is a core part of the business. Non-standard dimensions, special alloys, unusual finishes or one-off structural assemblies are all handled on an RFQ basis.

Vajra operates an ISO 9001:2015 certified quality management system, with standards-based engineering across ASTM, IEC, EN, DIN, NEMA, BS and IS specifications.

Dimensional inspection, coating-thickness measurement, salt-spray testing and material certification are performed in-house. Third-party inspection is welcome.

Yes — Material Test Certificates (MTC) and inspection reports are prepared as standard, with batch and heat traceability for controlled and defence-grade work.

Mild steel, structural steel (IS 2062), stainless steel (304/316), aluminium, electrolytic copper and brass — selected and certified to application.

Standards-based engineering across ASTM, IEC, EN, DIN, NEMA, BS and IS — including IS 4759 / ASTM A123 galvanizing, IS 2713 gratings, and IEC 61537 / IS 12352 cable management.

Pre-galvanized (PG) sheet has zinc applied to the coil before fabrication — every cut edge, punch hole and weld made afterward exposes bare steel with zero zinc coverage. Hot-dip galvanizing (HDG) is applied after full fabrication: the finished part is immersed in molten zinc at 445–455°C, forming four intermetallic zinc-iron bonding layers on every surface including welds, cut edges and internal corners. HDG to ASTM A123 produces 85–110 µm average coating; PG Z275 produces 19 µm per side. Outdoors, HDG provides 25–40 year service; PG shows red rust at cut edges within 18–24 months in humid or coastal conditions. Vajra owns an in-house HDG bath and XRF-verifies every production batch.

Pre-galvanized Z275 (EN 10346 / IS 277): 19 µm per face, total 38 µm on both sides. Zero coverage on cut edges. Hot-dip galvanized ASTM A123: 85 µm minimum average, 75 µm minimum individual — full coverage including all edges, welds and fixing holes. Powder coat: 60–80 µm DFT, applied over pre-galvanized or phosphate base (never bare steel). Epoxy primer + polyurethane topcoat: for chemical-resistant applications in acid-wash, solvent or high-corrosion zones. Stainless 316L: no coating required — the chromium oxide passive layer is self-renewing.

Yes — SS 304L and SS 316L cable trays are available in ladder, perforated and channel types in standard widths from 50 to 600 mm. The difference matters: 304L is suitable for industrial and general corrosive environments; 316L adds 2–3% molybdenum which provides resistance to free chloride attack — required for marine spray zones (within 200 m of the sea), pharmaceutical washdown areas and food-processing environments. If your project is coastal, specify 316L. MOQ for stainless is lower than for mild steel runs, and lead times are comparable at 3–4 weeks production.

Load capacity depends on bearing bar section, span and load type. Key reference values to BS 4592 / IS 2713: 25×5 mm bars at 1,000 mm span → approximately 4.5 kN/m² UDL (pedestrian walkways); 38×5 mm bars at 1,000 mm span → approximately 10 kN/m² UDL (industrial platforms with equipment); 50×6 mm bars at 600 mm span → approximately 28 kN/m² (forklift rated). These are approximate — actual values depend on steel grade (IS 2062 Gr. A or B) and electroforged weld quality. We provide load tables and can run a BS 4592 calculation for your specific span, load and bearing bar selection before you order.

Vajra serves EPCs, OEMs and contractors across the Americas, Europe, the Middle East, Southeast Asia, Africa, Australia and the United Kingdom, with experience in international standards compliance and container logistics to all major ports.

Material Test Certificates (MTC), Certificate of Origin (COO), inspection reports, packing lists and commercial invoicing — prepared as standard, not as an afterthought.

Vajra has experience supplying on FOB, CIF and CFR terms, with container loading, export packing and documentation coordination handled in-house.

There is no fixed minimum — Vajra ships prototype quantities through to full 20' or 40' container loads. For most product categories a single container load (roughly 18–20 MT) represents a natural break-point for sea-freight economics, but smaller air-freight or consolidation shipments are arranged when the project demands it.

Standard production lead time is 3–5 weeks from confirmed order and approved drawings. Add 2–4 weeks for sea-freight transit to most Middle East and Southeast Asia ports. Critical-path orders with pre-approved specifications can often be expedited to 2–3 weeks production.

Standard terms are 30% advance TT, 70% against copy Bill of Lading. First-time buyers are typically required to pay 100% advance or open an irrevocable LC. Repeat buyers with a trading history may arrange 30/70 or LC at sight. We accept TT, LC (sight and usance), and in some cases open account for long-standing customers.

Yes — container mix-loads are common for project orders combining cable trays, earthing, gratings and accessories. A consolidated packing list and single commercial invoice are issued for the full container, with each product line clearly separated.

Export shipments originate from Kolkata Port (INKOL) or Haldia Dock Complex (INHAL, 110 km south of Kolkata), depending on vessel availability and container weight. Haldia is preferred for heavier structural steel shipments due to deeper draft; Kolkata handles smaller containers and project cargo efficiently. Transit times (approximate): Jebel Ali (UAE) 12–16 days; Dammam (Saudi Arabia) 14–18 days; Port Klang (Malaysia) 16–20 days; Manila (Philippines) 18–22 days; Mombasa (Kenya) 14–18 days; Felixstowe (UK) 22–28 days; Sydney (Australia) 24–30 days; Houston (USA) 25–32 days.

Yes. The group has a documented 50-year history of domestic defence supply, producing defence-grade precision parts under material traceability, qualified processes and documented inspection.

Yes — controlled-batch production with confidential build-to-print drawings, full traceability and documented inspection is part of standard defence and OEM workflow.

Each batch carries full material traceability from incoming raw-material heat/lot to finished part: incoming inspection records, in-process dimensional logs, coating or heat-treatment records, and final inspection report. All records are retained for the contractual minimum period and available for audit.

The group has a 50-year documented history of domestic defence supply, including to organisations within the DPSU and OFB supply chain. We do not disclose specific customer names, but references and capability statements are available under NDA for qualified enquiries.

Submit an RFQ through the Request a Quotation form with your product, specification, quantity and destination — or email info@vajrainternational.com. You'll receive a structured response covering specification, finish, lead time and Incoterms.

The minimum for a useful first response: product type, material grade, finish, width/size, quantity, destination country and required standard. The complete brief that gets a firm quotation in 24 hours: all of the above plus drawing (DWG, DXF or PDF), your Incoterm preference, target delivery date and whether you need third-party inspection. Missing the standard is the most common gap — an inquiry for 'cable trays' without specifying IEC 61537, NEMA VE 1 or IS 12352 gets a response covering all three variants, which takes longer. One standard, one quotation, one day.

Yes — factory visits and virtual walkthroughs are welcome. Our facility in Howrah, Kolkata covers 45,000+ sq.ft across three production units. Contact us to schedule a visit and we will coordinate an in-person or video tour.

Yes, and we encourage it. SGS, Bureau Veritas, TÜV, OMIC and buyer-nominated inspectors are welcome at any stage — from raw material receipt and in-process checks through to final pre-shipment inspection. Reports are incorporated into the shipment documentation package.

Yes. We work directly from customer drawings (DWG, DXF, PDF), bill-of-quantities and specifications. We can also reverse-engineer or re-draw from samples or field measurements. All drawings are treated as confidential under NDA on request.

Export invoices are issued in USD as standard. EUR, GBP and AED invoicing can be arranged for buyers in those currency zones. INR invoicing for domestic orders.