How do I choose between single and double girder?

<p>For spans up to ~22.5m and loads under 20T, an LD single-girder overhead crane is biasanya the most cost-effective and space-efficient choice. It offers lighter deadweight, lower headroom requirements, and simpler installation—ideal for general workshops, warehouses, or light assembly lines.</p><p>For loads above 20T, spans over 22.5m, or when you need higher hook lift or frequent heavy-duty cycles, choose a QD double-girder crane. Double-girder designs provide greater rigidity, allow for higher lifting heights, and support auxiliary hoists or trolleys. They also suit metallurgical (YZ) or smart unmanned (QDS) applications.</p><p>We supply both types from 0.5T to 150T with CE/CCC certification. For a tailored recommendation based on your span, duty, and budget, contact us on WhatsApp +86 19392777259—we reply within 4 hours.</p>