Shandong Zhengyuan SL500S is a multi-functional top-drive water well drilling rig. It is equipped with a Yuchai 110Kw engine. The maximum drilling depth is 500 meters, the drilling diameter ranges from 105 to 400 millimeters, the lifting force is 28 tons, the maximum rotary torque is 10000/5000 Nm, the overall dimensions are 6.2×1.85×2.55 meters, and the machine weight is 10.5 tons. It can adapt to geological conditions such as loose layers and bedrock, and can use submersible impactors or mud drilling methods. It can also be equipped with mud pumps, generators and other accessories according to requirements.