Keestrack

Published 22/12, 2015 at 14:54

Destroyer 1113 at Kim Vind
The new 49t Keestrack Destroyer 1113, with a secondary screen, has been deployed in the recycling process at Danish company Kim Vind Maskinstation and Entreprenør since the summer of 2015. Supplied and supported by dealer TNS Imex in Løgumkloster, the Destroyer 1113 with the secondary screen unit and recycling conveyor is easily and quickly transported to any location.

“We were convinced by the machine’s short set-up times and its high level of mobility on difficult terrain,” said director Kim Vind.

The material first emerges from the 5m³ charge hopper with variable vibrating pan feeder via an active double-deck primary screen to separate the fine particles, which are transported outside the crusher by a bypass or are stockpiled laterally. This minimises wear and tear and optimises the impact crusher’s efficiency with an intake opening of 1050mm x 800mm.

A vibration chute beneath the crusher transports the crushed material onto the main discharge conveyor, where the remotely controlled hydraulically height-adjustable overband magnet separates metallic constituents. The optional single-deck final screen produces two fractions via conventional removable screen media, with the swivel-mounted recycling conveyor returning the oversize grain to the charge hopper or stockpiling as additional final grain. The optional double-deck module and upgradable mid-grade conveyor for a second value-grain size offers even higher added value in solo operations.

The machine is controlled and monitored by Keestrack’s SPS-based Relytec controller, which guarantees numerous function routines, clear on-screen information and optional wireless remote control, a high level of operating convenience and smooth operations. Kim Vind opted for the ECO-FS diesel-hydraulic system with a 298kW Cummins diesel engine and load-sensing hydraulics, enabling fuel savings of up to 25%. With more than 500h of operation in the first five months since start-up, the Destroyer 1113 achieved production rates of between 200t/h and 260t/h during typical recycling operations with diverse building rubble. Approximately 230t/h has been recorded for gravel production from granite/siliceous limestone. Average fuel consumption to date is almost 50litres/h.

“The switch to Keestrack’s crusher and secondary screen unit has enabled us to expand our range of services and our customer base. Today we are processing a broader range of raw materials and supplying higher-grade end products, regardless of whether we use demolished concrete, asphalt, natural stone or any other unspecified building material,” said Kim Vind. “Even when used on construction sites, the Destroyer 1113 comes into its own when equipped with an additional hydraulically driven generator and compressor for small tools. The final screen means we can often dispense with a machine, making it possible to process smaller batches in solo operation. In addition, a self-mounted fan for the air separation of light materials also enables us to handle the processed residual mass in a simple manner.”

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