During the concert preparation period, there is a wide variety of stage auxiliary equipment that needs to be hoisted. According to the equipment's functions, weights, and installation positions, concert hand chain hoists should be used to realize hierarchical and classified hoisting. This avoids mutual interference between devices and improves installation efficiency.
Precise Hoisting of Audio Equipment
For audio equipment such as stage monitors (usually weighing 10-30kg) and wireless microphone receiver stands, they need to be hoisted to designated positions on the trusses at the sides of the stage or above the proscenium arch. Moreover, the height should match the height of the performers' headsets (generally 2.5-3 meters above the stage floor). During operation, the chain of the concert hand chain hoist is pulled slowly, and horizontal displacement adjustment is coordinated to ensure that the direction of the stage monitors is accurately aligned with the performers' standing areas, thus avoiding sound reflection or signal interference. Microphone stands need to be hoisted onto the mobile rails in the center or on both sides of the stage, facilitating position adjustment according to the performance process later. The controllable load-bearing feature of the hand chain hoist can effectively prevent the risk of microphones falling due to the shaking of the stands.
Fine Installation of Lighting Equipment
Lighting equipment like small LED fill lights (each weighing 5-15kg) and follow - spot auxiliary stands should be hoisted onto the light frames in the front row of the audience area or the lighting trusses at the back of the stage. For areas requiring precise lighting (such as the singer's performance area and the musical instrument playing area), the concert hand chain hoist can achieve millimeter - level lifting adjustment, controlling the height of the fill lights within 3-5 meters. At the same time, it is coordinated with an angle adjuster to ensure that the light coverage area completely coincides with the marked points on the stage. Some movable lighting stands need to be hoisted onto slidable hanging rails by the hand chain hoist, which is convenient for lighting engineers to fine - tune the positions according to the rehearsal effect later without disassembly and reinstallation, greatly saving debugging time.
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