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Crane cable reel: The giant's "energy belt" ensures that lifting operations never run out of power

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Product Introduction

At a busy port, a crane precisely lifts a giant container onto a cargo ship. As the crane moves, a thick black cable, like a flexible "blood vessel," stretches from the ground to the boom. Behind the scenes, the crane's cable drum works silently. It automatically retracts and unreels the cable, providing continuous power to the crane and ensuring the lifting operation.

Technical Parameters:

Roll diameterΦ300 mm-Φ3000 mm
Cylinder wall thickness8-30 mm
Material selectionQ355B/42CrMo/304 stainless steel
Maximum load weight200 kg-5000 kg
Number of cable layers1-15th floor

Decoding the Structure: Cable Management Wisdom in the "Steel Hub"

The cable reel's design is a sophisticated fusion of mechanics and electrical engineering:

Reel Body: The steel reel, like an "energy reel," features a non-slip surface treatment (such as knurling) to prevent cable slippage. The reel diameter strictly matches the cable's bend radius (e.g., a 35 mm cable corresponds to a reel diameter ≥ 350 mm) to prevent cable breakage.

Drive System: The motor + reduction gearbox form the "power heart," providing constant tension. As the crane moves, the reel automatically retracts and unretracts the cable, with the retraction and unretraction speed synchronized with the crane (with an error of ≤0.5 m/min), ensuring the cable is always properly tensioned.

Cable Arrangement: A spiral groove or swing-arm design keeps the cables neatly arranged, resembling the grain of a record.

 

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