TSOC has been manufacturing single girder and double girder American made cranes and hoists for over 50 years. Single girder crane: A single beam that runs above or below the runway/end trucks. 5-Ton, 10-Ton, 15-Ton, 20-Ton, 25-Ton, 30-Ton, 50-Ton, 75-Ton, and 100-Ton. 1-Ton Cranes. 1-Ton Overhead Crane Examples. 2-Ton Crane. 2-Ton Double Beam Gantry Cranes. ColorYellow Type Single / Double Girder Max Height 0-20 feet, feet, >100 feet, feet, feet, feet Power Source Electric Capacity 1-200 Tons. Read More. double beam gantry crane for sale is are specifically2011 Shuttlelift ISL-50B 50 TONS (100,000 LBS Capacity) Gantry Crane. Available spreader bar for handling Wind Blades. Demag ZVPE-15 (15 Ton Rail Mounted Portal Gantry) Double Girder, 85ft Span CMAA, Class "C" for outdoor use Cummins diesel self contained power unit / Wireless, cable and onboard controls 1,000 hours 66,360 Operating Weight Bridge Crane 1 ton to 20 ton LD model Single Girder Bridge Crane: 1. Double Beam Gantry Crane manufacturer ; Wall Jib Crane ; KBK Crane This bridge crane is an mid-duty class crane, the capacity from 5 tons to 50 tons. The span is 7.5m~31.5m. working grade is A3~A4. Working temperature is -25 to +42 centigrade.