Αποτελέσματα Αναζήτησης
hoist ring allowing the hoist ring to reach its full 5:1 safety factor. • The hoist ring is free to swivel and pivot in every direction. o If the hoist ring binds up in any direction, it should be removed from service. • There are no signs of corrosion.
DME swiveling hoist rings are designed and rated to be pulled at any angle at the rated load. However, the applied load on a multipoint lift will increase if the sling angle is less than 90°.
Hoist rings provide the safest method of attaching pickup points to loads. Eye bolts tend to deform and fracture when lifted at an angle. Hoist rings are designed to eliminate this weakness.
• Install ring so that lifting force is applied in the direction of the pivot. • After installation check the lifting ring to make sure the ball pivots freely in all directions. Hoist Ring Care & Maintenance
Use Instructions. The load rating on each hoist ring is not simply total weight divided by the number of hoist rings. The resultant force can be significantly greater at shallow lift angles and with unevenly distributed loads. Determine the maximum load at any given lift angle by using this formula:
hoist ring. After slings have been properly attached to the hoist ring, apply force slowly. Watch the load and be prepared to stop applying force if the load starts buckling. Buckling may occur if the load is not stiff enough to resist the compressive forces which result from the angular loading. Table 1 Working Load Limit* 5:1 (lbs.) Hoist ...
The force on each hoist ring is not just the total weight divided by the number of hoist rings. The force will be greater at lower lift angles. Make sure load is evenly distributed. See below. Formula with example data: F = W N Sin A CORRECT F = Force on each hoist ring W = Total weight = 4000 lbs. N = Number of hoist rings = 4 A = Lifting angle
