Side lift spreader for lifting intermodal container

A side lift spreader main beam (22) comprises a vertical carrier plate (58) having a first vertical height (H1) and being made of steel plate having a first thickness (T1); a C-beam (60) comprising afirst horizontal flange (64) and a second horizontal flange (66) interconnected by a vertical web portion (68), the C-beam (60) having a second vertical height (H2) lower than the first vertical height (H1) and being made of steel plate having a second thickness (T2) thinner than the first thickness (T1), wherein the C-beam (60) defines, together with the carrier plate (58), a closed channel beamwith a first flange (74) of the carrier plate (58) extending vertically from the closed channel beam; and an inclined support plate (62) welded to the carrier plate, and to an outer face of the firstflange (64) of the C-beam (60) at a distance from the carrier plate (58). 一种侧向吊装吊具的主梁(22)，包括：竖直承载板(58)，具有第一竖直高度(H1)并由具有第一厚度(T1)的钢板制成；C形梁(60)，包括通过竖直腹板部分(68)相互连接的第一水平凸缘(64)和第二水平凸缘(66)，C形梁(60)具有低于第一竖直高度(H1)的第二竖直高度(H2)并且由具有比第一厚度(T1