Our metal roof beam features high tensile strength. Its body is welded by automatic submerged arc welding. The welding quality is high; performance is stable; and production efficiency is high. Using automatic submerged arc welding can weld a steel plate with the thickness less than 14mm and without groove in one time. It also helps to reduce the welding deformation and effectively prevents overheating of the metal near the weld zone.

To improve the comprehensive mechanical properties of our product, the articulated roof beam body and parts are made of 27SiMn and processed by quenching. The long line beam is treated by the GT intermediate frequency induction heating furnace which has strong continuous working ability, high heating speed, less oxygen decarbonization, and high precision temperature control, thus effectively avoiding uneven hardness. In addition, our company is the only one in China that has intermediate frequency production line reaching 7M.

 

■Technical Parameters              ■Standard Compliance: MT30-2000

 

序号No. №	型号与规格 Model  Типоразмер	中心距 Center Distance (mm) Расстояние между центрами	许用载荷(KN.M) Permissible load(KN.M) Допустимая нагрузка		许可弯矩（KN) Allowable bending moment(KN) Допустимый изгибающий момент		调整角度（°） Adjustable angle（°） Подгонка угла
			梁体 Beam body Корпус балки	铰接部 Hinged part Часть шарнирного соединения	梁体 Beam body Корпус балки	铰接部 Hinged part Часть шарнирного соединения	上下 Up and down Верх и низ	左右 Left and right Справа и слева
1	DJB600	600	470	170	525	30	≥7	≤3
	DJB800	800	420
	DJB1000	1000	300
	DJB1200	1200
2	DJC600	600	310	100	35	18
	DJC800	800	280
	DJC1000	1000	200
	DJC1200	1200
3	DJD600	600	230	85	26.5
	DJD800	800	210
	DJD1000	1000	150
	DJD1200	1200