If possible, always try to keep horizontal sling angles at what degree?

Maintaining horizontal sling angles greater than 60 degrees is crucial for safe lifting operations. When sling angles are kept within this range, it ensures that the load is distributed more evenly across the slings, reducing the potential for excessive strain that can lead to sling failure. At higher angles, the force exerted on the slings decreases, allowing for a safer connection with the load being lifted. Additionally, greater angles help in preventing the load from swinging or twisting during the lift, enhancing stability and control.

Having horizontal sling angles that are too low, such as those under 30 degrees, can create hazardous conditions that increase the risk of slippage or failure of the slings due to the higher tensions involved. Therefore, aiming for angles above 60 degrees is generally considered best practice to ensure the safety and efficiency of overhead lifting operations.