The SC200 (J) construction elevator for shafts utilizes a dedicated variable frequency integrated machine and an assembled cage, facilitating easy assembly and disassembly within the shaft. The cage has a height of 3.1 meters, allowing for the transportation of extra-long materials. The cage features a symmetrical design, allowing it to be used as either a left or right cage. The cage size is adjustable, accommodating various shaft sizes. It can also be combined to form a standard SC-type elevator cage. The electric control cabinet and resistance box are of an embedded structure, providing ample space inside the cage. It features intelligent self-detection, voice announcement, fault display, alarm, and SMS notification. GPS remote communication, IoT remote monitoring, and open interfaces enable network connectivity with smart construction sites or safety supervision departments. It supports both manual and automatic leveling control modes, allowing intelligent call response and automatic leveling on each floor. It incorporates a facial recognition system and card insertion. An optional fully automatic mode is available, featuring intelligent door opening and closing, cage door and landing door electrical and mechanical interlocking, and dual hand anti-pinch protection.