An underhung crane, also known as an under-running crane or underhung bridge crane, is a type of overhead crane where the bridge (horizontal beam) is supported by the building structure, and the hoist and trolley run along the bottom flange of the bridge.

Industri elektrisk toppløpende brokran er en mye brukt type innen kraner på dette stadiet. Den består av fire hoveddeler: fjernbjelke, endebjelke, vogn og elektriske apparater. Det brukes vanligvis i mange industrielle produksjons- og løftetransporter som innendørs og utendørs jernbanetransport, gruvebedrifter, stålindustri, havner og terminaler, etc., som fremmer den raske utviklingen av storskala industriell produksjon og løftetransport.

SEVENCRANE underhengt dobbeltbjelkebrokran er en vanlig brokran med elektriske traller. Ytelsesparametrene til dobbeltbjelkebrokranen inkluderer: løftekapasitet, løftehøyde, spennvidde, mekanismens arbeidshastighet, arbeidsnivå, hjultrykk, etc.

Industriens elektriske underhengte dobbeltbjelkebrokran har overlegen ytelse, kompakt struktur, lett vekt, pålitelighet og drift, og kan møte ulike arbeidsforhold. Det kan redusere den totale investeringen i fabrikken, forbedre produksjonseffektiviteten, redusere vedlikeholdskostnadene og spare driftsenergiforbruk.

Industry electric underhung bridge crane is a major lifting and transportation equipment in the production logistics process, and its utilization efficiency is related to the production rhythm of the enterprise. At the same time, underhung bridge cranes are also dangerous special equipment and may cause harm to people and property in the event of an accident. The driver of the overhead crane is the most active and critical factor in the use of the overhead crane. The driver's ability to operate the overhead crane is very important and is a major issue directly related to the company's efficiency and safe production. The author summarizes his own practical experience in operating bridge cranes and puts forward the following operating experience based on the characteristics of bridge cranes.

The cost of transportation, installation, commissioning and maintenance of bridge cranes will usually account for a part of the total cost, but the specific proportion will be affected by many factors, including the type of crane, size, design requirements, installation location and operating environment, etc.