YZS type adopts main and auxiliary double trolleys, four-beam and four-track structures, mainly composed of bridge frame, main trolley, auxiliary trolley, hook beam, crane operation and electrical parts. The main trolley runs on the main beam track outside the bridge frame, and the auxiliary trolley is on the bridge frame. The inner side auxiliary beam runs on the track. The main trolley pick-up device is a hook beam with a fixed spacing for lifting and transporting ladle. The sub-trolley runs under the main trolley, and the pick-up device is a hook to cooperate with the main hook. To dump molten steel, steel slag, and other auxiliary lifting operations.
Safety system
- Overload protection in the event of overload, the hoist unit switches off and only the lowering motion is possible
- Long and cross travel limited by means of preliminary and final limit switches or Wireless anti-collision device
- Anti-falling protection for the Three-in-One electric motor of trolley and crane prevents from accidental falling
- All movements can be switched off by actuating the emergency-off switch at the control station via a main contact
- Hih quality long time bearing polyurethane materials buffer fixed at the end of trolley travelling and crane travelling to prevent over traveling
- Safety hook latch used for avoiding the lifted material out off from the hook
- Audible and visual alarm device to inform the person stay near by the travelling crane
- Rain Cover for lifting mechanism of outdoor cranes, electric cabinet and driving mechanism
- Protective earth conductor is fitted as standard
- Voltage lower protection system
- Current overload protection system
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