Zhengzhou Unique Industrial Equipment Co., Ltd is a specialized manufacturer and exporter for the Tower Crane,we sincerely hope to establish business relations with your esteemed corporation Our Main Model as following : 1. QTZ20 Max Load : 2 ton Tip Load:0.6 ton Working Range: 2.5~30 m 2. QTZ25 Max Load : 2.5 ton Tip Load:0.8 ton Working Ratio: 2.5~30 m 3. TC3508 Max Load : 3 ton Tip Load:0.8 ton Working Ratio: 2.5~35 m 4. QTZ31.5 Max Load : 3 ton Tip Load:0.7 ton Working Ratio: 2.5~36/42 m 5. QTZ40 Max Load : 4 ton Tip Load:0.8ton Working Ratio: 2~36/42 m 6. QTZ60 Max Load : 5 ton Tip Load:1 ton Working Ratio: 2.5~46 m 7. QTZ63 Max Load : 6 ton Tip Load:1.3 ton Working Ratio: 2.5~46/50 m 8. QTZ80 Max Load : 8ton Tip Load:1.2 ton Working Ratio: 2~55/50 m 9.QTZ125 Max Load : 10 ton Tip Load:1.4 ton Working Ratio: 2.9~50/55 /60m 10.QTZ160 Max Load : 10 ton Tip Load:2.1 ton Working Ratio: 2.5~60/54/48m Any further information you need , contact with us directly.