The parts all adopt raw materials from famous brands like Baosteel, Laiwu Steel, etc., which guarantees the products’ quality and reliability. Dahan has made strategical cooperation with steel companies for reduced cost, which lays the solid foundation for providing customers with products of optimal value. The major parts like main limbs of standard section and frame, and the boom parts all adopt Q345B manganese steel, which improves the tensile strength by 30%, making the product more safe and reliable. Learn more

All the parts adopts products of famous brands, including Schneider electric parts like aviation plug. With overload and overcurrent protection and PLC self-diagnosis system, it is convenient for inspection and repair. Learn more

Stainless steel distribution box and high quality control cab feature low trouble rate and more convenient installation. Learn more

Hoisting mechanism of famous Chinese brands, filled with high quality oil for maintenance free, features high reliability and low trouble rate. Learn more

Equipped with Fangyuan or Xuzhou Rothe Erde slewing bearing products, which adopt two time tempering technology, the product runs more smoothly and has longer service life. Learn more

The high strength bolts adopts marine Dacrotized technology and features high anti-rust capability. The bolt pretightening force is improved by 30% due to the use of fine thread, compared with traditional bolts. Learn more

The weight restriction device adopts tension ring structure; the limit devices for lifting, amplitude change and slewing operation adopts cast aluminum shell for longer service life. Learn more

The large structural parts like standard section, turntable, tower cap, and hoisting boom are all machined after welding with advanced equipment like CNC lathe, drilling and milling machine, which effectively ensures the precision of product assembly, reduces trouble rate and improves safety. The surface treatment adopts full automatic coating line. The first shot blasting treatment ensures the cleanness of the steel surface, eliminates the internal stress for welding, improves the steel strength and hardness, and improves the adhesion of the paint film. With two times of priming paint and one finishing coat, it has beautiful appearance and 2 times higher anti-corrosion capability compared with common coating technology. Learn more

The load trolley is mounted with anti-off rope and rope anti-broken devices as well as axle anti-broken, anti-falling and anti-tipping devices. Learn more