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Sandvik QI440 impact crusher unit - 2 Pages
AB20 Architectural Binder table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Arial", sans-serif; } .font1 { font:17.00pt "Arial", sans-serif; } .font2 { font:23.00pt "Arial", sans-serif; } .font3 { font:7.00pt "Palatino Linotype", serif; } Sandvik QI440 impact crusher unit in Action Technical specification sheet The QI440 is a heavy duty, tracked, self propelled impact crusher with an on board re-circulating system, double screen boxes and double deck to allow two screened products to be produced along with an oversize. The oversize can be re-circulated back into the impactor, without re-handling, or the conveyor can be hydraulically rotated to produce a clean oversize product. Thus, the QI440HS is not only set to be the definitive heavy duty tracked impact crusher, but also allows customers even greater return on their investment through the facility to produce accurately sized products for immediate use. It also possesses the following exciting features: The machine is fitted with a pre-screen to ensure maximum scalping capability in order to prevent any undersize material passing through the impactor, thereby maximising throughput and reducing wear costs. This also allows a specified sized product to be produced from the natural fines conveyor. Օ The pre-screen has a choice of grizzly, punch plate or heavy duty mesh top deck and mesh bottom deck, providing the flexibility to suit any application. The QI440 is fitted with an underpan feeder which drastically reduces any spillage issues generally associated with impact crushers. The underpan feeder eliminates the need for skirt rubbers that are normally situated in the severe impact zone of a feed boot. Օ The underpan feeder also protects the conveyor belt from the material that is travelling at high velocity from the rotor. This material is contained on the wear resistant underpan feeder liners and gently delivered onto the conveyor belt. Two hydraulically adjustable apron curtains can be positioned to facilitate the machines operation. Օ The above combined with the variable engine speed gives a tip speed range of 30 m/s to 37 m/s resulting in a wide range of product gradations being achievable. SANDVIK
