Mobile Tower crane QTZ250移动塔式起重机

QTZ250塔机是由我公司开发研制的大型塔机。该塔机为上回转、水平臂架、小车变幅、液压自升行走式塔机。额定起重力矩为2500kN�m，最大独立起升高度为46m，最大起重量为12吨，最大幅度处起重量为3吨，最大幅度为70m。

该塔机设计合理，标准节为片式，大大降低了运输费用。造型美观、质量精良、安全可靠，是广大建筑企业理想的建筑施工机械。该机具有起升、回转、变幅、顶升、行走五种工作机构，起升、回转、变幅可单独或复合动作，以提高工作效率。顶升机构用于塔身接高或降塔；行走用于扩大工作空间。三大机构通过变频调速产生多种不同速度以满足不同工况的需要。起重臂可正反旋转540�，回转、变幅灵活可靠，起升就位准确，可一次性满足建筑施工中垂直及水平运输的需要。

该机设有起重量限制器、力矩限制器、起升高度限位器、幅度限位器和回转限制器等装置。安全保护装置灵敏可靠，确保塔机正常工作。另外，还设有休息平台、护栏等安全保护设施。司机室独立侧置，造型美观，视野开阔，内部空间大，操作方便。

该机可广泛应用于高层饭店、居民住宅、高层工业建筑、跨度较大的工业厂房、高大烟囱等大型建筑工程。

QTZ250 tower by my company is developed and large tower. The tower for turning on the shelf, the car horn level arm, hydraulic ZiSheng walk type tower. Rated lifting torque for 2500 kN m., biggest independent lifting height for 46 m, maximum lifting weight for 12 tons, the most greatly place up to 3 tons of weight, the most greatly for 70 m.
The tower design is reasonable, the standard section for chip, and greatly reduce the costs of transportation. Modelling beautiful, quality excellent, safe, reliable, and is the building of enterprise ideal building construction machinery. The machine has a hoisting, slewing, derricking and roof up, walk five kinds of work units, hoisting, slewing, luffing independently or composite action to improve the work efficiency. Roof up mechanism for mai take high or drop tower; Used to expand the space walk to work. Three big institutions through the variable frequency speed regulation produce various different speed to meet the needs of the different working conditions. Hoist boom can be positive and negative spin 560, slewing, luffing flexible reliable, hoisting in place accurate, and can be one-time meet in vertical and horizontal construction of transportation needs.
The machine has the weight limit device, torque limiter, lifting height limit device, amplitude limit device and rotary limiters device. Safety protection device is sensitive and reliable, ensure the normal work tower. In addition, but also is equipped with the rest platform, such as fence safety protection facilities. The driver room independent side buy, beautiful modelling, vision and interior space is big, easy to operate.
This machine can be widely used in high-rise hotel, residential, industrial building, top of the large span industrial workshop, such as high chimney large construction projects.
Yantai haisan architecture machinery Co., LTD. Of products, is you choose construction equipment in the best choice.