What is the minimum head lifting capacity required for a stacker that meets the safety standards?

The correct answer reflects the minimum head lifting capacity necessary for stackers to comply with established safety standards. A capacity of 4 metric tons indicates that the equipment is designed to handle substantial loads while maintaining stability and safety during operation. This requirement ensures that the stacker can perform lifting operations without exceeding its structural limits, thereby minimizing the risk of equipment failure or accidents.

Workers who use stackers with adequate head lifting capacity can effectively handle various loads commonly encountered in warehouses and distribution centers. Sufficient lifting capacity is crucial, as it affects not only the efficiency of material handling but also the overall safety of the work environment. Choosing equipment with the proper specifications helps in ensuring compliance with industry safety regulations and promotes safer operational practices.