Premier’s range of upenders/downenders has more or less been developed as a natural off-shoot from their inverter business. Customers who have seen the 180 degree inverters in operation have recognised a potential solution to a more simple problem of tipping paper and steel coils through 90 degrees.
Rather than employ the rack and pinion system from the 180 degree models they are powered by one or two hydraulic rams pushing on a cam mounting at the corner of the two tables and pivoting on twin bushes.
All Premier’s 90 degree tippers are built to customer requirements as no two loads are ever quite the same. However, there are four basic design principles that can be adapted to virtually all circumstances.
The Type ‘A’ tipper has one table at a raised height and the other which lowers to ground level. This would invariably be used to tip paper reels to ground level to be rolled away to a production machine.
The Type ‘B’ is generally designed for heavy loads. Premier have built them to handle steel coils up to 15 tonnes in weight. Both tables are loaded/unloaded at a raised height either by forklift truck or crane. The extra height under the tables gives room to produce more leverage with the hydraulics. Optional features with the Type ‘B’ include a slot in one table (to assist loading by ‘C’ hook) and a ‘V’ profile on the receiving side to stop the coils rolling sideways.
The most common application would be to downend the coil to “core horizontal” so that it can be unrolled from a mandrill. Equally, some steel producers will tip to “core vertical” on a pallet to make the product safer to ship.
The Type ‘C’ is only occasionally built as it works on a “below ground” principle and requires a pit to be built to house the turning mechanism. The main advantage is that it can turn a heavy load of 2 to 3 tonnes flush-to-the-floor on both sides for removal by pallet truck.
The Type ‘D’, though it only has a 1000 kgs capacity, is actually the most popular tipper in the range. It is invariably used to downend paper or packaging reels. The clever design tips the tables from floor level on one side to approximately 10cm above ground on the other. Using a ramp on the higher side it means the unit can be loaded and unloaded at ground level without the need for a pit.
Other applications for the 90 degree tippers include turning heavy steel tools for dismantling and maintenance, tipping cable drums ready for reloading and turning stacks of plasterboard to recover damaged sheets more easily.
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90° Tippers