Tower Crane (QTZ Series) This series is horizontal jib, radius-changing by jib-trolly and can be self-raising. It has novel design structure, and can be reliable running. All the parts are from famous brand in domestic and electric parts from world famous brand. "Quality, the No. 1", is not only a slogan, but has rooted in the Hongda people's heart deeply. We provide excellent after-sale services and resolve all youy worries. The Models of Tower Crane: QTZ31.5(3883, 4075, 4264), Max. Load: 3t QTZ40A(4708), Max. Load: 4t QTZ40(4708, 4510), Max. Load: 4t QTZ63C(5013, 5211), Max. Load: 6t QTZ63B(5610, 5013), Max. Load: 6t QTZ80A(6010, 5512), Max. Load: 8t QTZ100A(5515), Max. Load: 8t QTZ125A(6015, 5518), Max. Load: 8t QTZ160(6516), Max. Load: 10t QTZ200(7020), Max. Load: 12t QTZ300(7031), Max. Load: 12t QTZ315(7035), Max. Load: 16t QTZ500(8030), Max. Load: 25t After-Sale Service: 1. Free Guide for Erection 2. Free Commissioning 3. Free Operator Training 4. Spare Parts Supply Warranty Terms: 3-12 months Delivery Time: 30 working days after received advanced payment. More details about these Tower Cranes, please contact me directly. I can provide you the detailed Configuration Sheet and other necessary technical info you need. If you are available, welcome anyone of you come to our company for a visit, seeing is believing, then you can understand our company and our products better.