AIR LIFTING BAG SET WITH AIR CYLINDERS

1. Airlifting bags are pneumatics appliance that Can be used for a variety of lifting purposes in rescue works in the wake of vehicle and railroad accidents, collapsed shelters or road clearance works amongst other situations. They can be slid into spaces below loads where normal jacks cannot be positioned. They can be used over uneven ground surfaces where again normal jacks will be unstable and dangerous. They can be used to relocate, topple, align and enable lifting by cranes or chain lifting systems. Whereas normal jacks concentrate the lifting energy over a small area, airlifting bags provide lifting pressure over a much larger area. They are easy in maintenance effort, durable and light weight. SCOPE OF SUPPLY 2.Each set of high pressure airlift bags will an air-jacking system comprising two bags each on 10 sizes in term of maximum lift capacities, i.e. a total of 20 bags, with accessories as indicated in Para 3 below. The totaled maximum lift capacity of one bag from each size should be in the range of 245 to 270 metric tons. The individual sizes should range between the maximum lifting capacities indicated below. 01 to 1.5 tons 1. 2.5 to 3.5 tons 2. 05 to 6.5 tons 3. 9.5 to 11 tons 4. 17 to 21 tons 5. 23 to 26 tons 6. 30 to 33 tons 7. 38 to 42 tons 8. 52 to 56 tons 9. 65 to 70 tons 3. Each set will be provided with the following accessories to operate up to eight bags at a time:- 10. 8 inflation hoses 5 m long in four different colours (two each) with push lock couplers. 11. 8 inflation hoses 10 m long in four different colours (two each) with push lock couplers. 12. 2 dual control box/unit, 8 bar, dead man 4 Single control units, 8 bar 14. 4 pressure reducers for air cylinders 200/300 bars 15. 8 shut off hoses with safety valve and 0.5 m hose 16. 6 compressed air cylinder 300 bar, 5 to 6 liters 17. 4 connection pieces for air cylinders 18. One air bag testing device per three sets of air bags (to be quoted for separately) 19. SPECIFICATIONS 4. The bag should be of multiple layers of Kevlar. Armed construction. While bags up to 26 tons max lift capacity should be square in shape, higher sizes may be rectangular or square in shape. The thickness of the bags should not exceed 30 mm. The set of bags should provide lifting options from a minimum of 7 cm for the smallest size to more than 50 cm for the highest size. 5. They should have anti-slip surfaces to provide good grip and high traction between the bag and surface of object to be lifted as well as when stacked on top of each other. Markings for centering should be provided along with fluorescent labels at corners for recognition in the night. Each bag should have its own storage bag. 6. Operating pressure 8.0 bars. Bursting pressure should not be lower than 32 bars. Testing pressure to be flowed will be 1.5 times the operating pressure. 7. Operating temperature -20 to 80 degrees centigrade.