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.

Nywerheid elektriese top loop brug hyskraan is 'n wyd gebruikte tipe in die veld van hyskrane op hierdie stadium. Dit bestaan uit vier hoofdele: hoofbalk, eindbalk, trollie en elektriese toestelle. Dit word gewoonlik gebruik in baie industriële produksie en opheffing vervoer soos binne en buite spoorweg vervoer, mynbou ondernemings, staal industrie, hawens en terminale, ens, wat die vinnige ontwikkeling van grootskaalse industriële produksie en opheffing vervoer bevorder.

SEVENCRANE ondergehang dubbelbalk-brugkraan is 'n algemene brugkraan met elektriese trollies. Die werkverrigtingparameters van die dubbelbalk-brugkraan sluit in: hysvermoë, hefhoogte, span, meganisme werkspoed, werkvlak, wieldruk, ens.

Die industriële elektriese onderhangende dubbelbalk-brugkraan het uitstekende werkverrigting, kompakte struktuur, ligte gewig, betroubaarheid en werking, en kan aan verskeie werksomstandighede voldoen. Dit kan die algehele belegging in die fabriek verminder, produksiedoeltreffendheid verbeter, onderhoudskoste verminder en bedryfsenergieverbruik bespaar.

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.