The main beam is the main hoist gantry crane force components, main beam directly affects the service life of machine.
主梁是葫芦门式起重机的主要受力部件，主梁的质量直接影响到整机的使用寿命。
Placed above the main beam electric hoist for lifting height restrictions in the workshops, warehouses and other places.
电动葫芦置于主梁侧上角，适用于起升高度受限制的车间、仓库等场所。
This not only avoids the park tunneling process, the tunnel deformation caused by squeezing the beam bending easily, but also extend the life cycle of the hoist.
此举既避免了上下山掘进过程中，巷道变形挤压容易造成横梁弯曲，还延长了提升机的寿命周期。
This not only avoids the park tunneling process, the tunnel deformation caused by squeezing the beam bending easily, but also extend the life cycle of the hoist.
此举既避免了上下山掘进过程中，巷道变形挤压容易造成横梁弯曲，还延长了提升机的寿命周期。
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