tender for supply and installation of rooftop ventilators in the badminton court at iim tiruchirappalli; 1 sitc (supply, installation, testing, and commissioning)of roof ventilator fan.i. neck diameter (id): 24 inches (610 mm) ± 5 mmii. turbine diameter (od): 30 inches (755 mm)iii. height: 18 inches (465 mm)iv. weight: approx. 5.4 kgv. base ring: made of stainless steel for durability and corrosion resistancevi. top plate: stainless steel, 0.5 mm thick, to withstand weather conditionsvii. centre shaft: 12 mm stainless steel, designed for smooth rotationviii. inner & outer arms: stainless steel to provide structural strength and longevityix. number of bearings: 2 nos., type 6001zz, permanently lubricated and sealed to ensure maintenance-free operationx. rivets: aluminium alloy with washers, corrosion-resistantvanes (blades): 44 vanes made of 0.5 mm thick aluminium sheet, designed aerodynamically for efficient air movement 2 provision of scaffolding, including rental, transportation to and from the site, safe erection at the work location, and dismantling upon completion. the scaffolding shall be suitable for rooftop installation work, ensuring worker safety and compliance with standard safety norms. 3 labour charges including adhesives, cutters, fasteners, and other tools, etc. including labour cost for the complete installation of rooftop ventilators, along with the use of necessary consumables and tools such as adhesives, metal cutters, fasteners, sealants, drilling equipment, and other minor tools required to complete the work safely and efficiently.