Portal crane for Handling "Zubr"

Portal handling cranes "Zubr" are a new line of modern articulated boom cranes that perform lifting operations in hook and grab modes, and also carry out handling operations in spreader mode. The line of portal handling cranes "Zubr" is distinguished by great flexibility, since with the same design scheme it is possible to implement crane lifting capacities of up to 125 tons and outreaches of up to 50 meters. The productivity of portal cranes "Zubr" in grab mode is about 2000 tons/hour. The design of the "Zubr" provides the crane with a resource in super-heavy mode A10 - 4,000,000 working cycles. The crane control system minimizes the amplitude of load swinging during movement and its precise installation. Optimal location of the end blocks of the trunk eliminates twisting of the load ropes when turning the crane. The crane design ensures independence of all working movements with the ability to combine them in any combinations, as well as horizontal movement of the load when changing the reach and balance of the boom device mass in the entire range of working reaches. The use of planetary gearboxes built into the drum in the Zubr crane lifting winches allows to significantly reduce the weight and size characteristics of the winches in comparison with the classic scheme with a cylindrical gearbox. The frequency drive of the crane ensures smooth regulation of the speed of its working movements and has the ability to adjust the intensity of acceleration and braking to the crane operator. The grab automatic device ensures automatic locking and opening of the grab when controlled by one joystick. All portal cranes of the Zubr line have a rotary device (RD) made in the form of a large-diameter support and slewing bearing with high load capacity. The labor intensity of servicing the RRD is reduced to a minimum. Lubrication of the bearing is carried out automatically using a centralized lubrication system. No repairs or replacement of parts are required during the entire service life of the crane in this unit. The block principle of the arrangement of all models of cranes of the Zubr line, their units and systems contributes to easy access to all service points, simplicity of repairs and easy replacement of worn out and exhausted elements. The cabin provides comfortable and safe working conditions for the crane operator, as well as a good view of the working area in all positions of the boom and load-gripping organ. The glazing is made of vibration-resistant double-glazed windows made of shatterproof glass and is equipped with protective grilles up to a height of 1 m. The design allows replacing glass from the inside. Portal crane "Zubr". Features: - Accurate positioning of the load due to minimal swinging amplitude; - Movement of the load along a horizontal trajectory when changing the reach; - High productivity when working with bulk cargo, general cargo and containers; - Working life in super-heavy duty A10 – up to 4,000,000 cycles.