Industrial OEM

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.

Specify electrolytic tough-pitch (ETP) copper to IS 613:2016 (Indian standard) or EN 13601 / CW004A (European). Both require a minimum electrical conductivity of 99.9% IACS. Request this value on the material test certificate, a statement of conformity to the standard is not sufficient. IS 613 covers flat busbar sections from 12×3 mm to 200×25 mm with current ratings for 30°C, 40°C and 50°C ambient. EN 13601 covers the DIN 46433 sections used in European-engineered switchgear. Ask for an EN 10204 Type 3.1 certificate showing heat number, conductivity, chemical composition and temper. Type 2.2 (self-certified) is not adequate for substation and MV switchgear orders.

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.