A 0.5 ton aluminum alloy chain block is a lightweight manual lifting tool suitable for hoisting, towing, or securing heavy objects. It has a rated load of 1.5 tons (1500kg). The operation method is manual pulling without the need for power supply. The aluminum alloy material is 30%-50% lighter than traditional steel blocks, making it suitable for handling scenarios in high-altitude work. A double ratchet braking system prevents backsliding. Overloading is prohibited, and storage should be kept away from damp environments. It is suitable for electric power and telecommunications high-altitude operations. The standard chain length is 1.5 meters, with support for custom chain lengths.