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Thanks to the completely new safety concept developed for the Demag DC-Pro chain hoist, the gearbox, brake and coupling operate without the need for any mainte- nance for up to ten years (brake for sizes DC 10 – 25 up to 5 years). The brake-coupling system ensures that the load is held securely in any operating situation. The load cannot drop. This is achieved by arrangement of the brake direct in the power drive chain (red line). Thanks to minimum wear 更多：https://www.bmcx.com/ , the brake does not need to be adjusted. Operating safety is generally improved by the single-fall design up to a load capacity of 1000 kg. The combination of electronic control system and integrated speed sensors continuously monitor the hoist motor, clutch and brake, thus ensuring lasting safety for the operator. The compact and light 24 V contactor control system also ensures that the system is subject to only mini - mum wear. The run-on path is both smooth and gentle. The standard control system includes n 24 V contactor control n Operating limit switches (upper/lower) to switch the hoist motion off in the highest and lowest hook positions – sizes DC 16 and 25 with geared limit switch with four contacts for for fast-to-slow and limit cut-off n Elapsed operating time counter can be read from the outside n Speed detection n Infrared diagnostics interface