2L TOP-Walking Roof Support (Patent Number: 200420000157.6)

The 2L top-walking roof support is a new type of support equipment between large mechanized mining bracket and single hydraulic prop. It not only has the advantages of high flexibility, self-moving, and high safety but also has the merits of small size, light weight, easy operation, convenient assembly and disassembly, convenient transport, and strong adaptability. Because of its excellent performance, this product has obtained National Invention Patent and Invention Award. Mr. Li Zeyu, the chief engineer of our company, is the first inventor and the only awarder.

This product is equipped with a top beam with boss, which effectively solves the problem of easy tipping over under uneven roof. It can be for working face with good geological conditions as well as working face of large inclination or soft roof, many faults, and easy spalling. It shows more outstanding performance when used for top coal caving.

According to different application requirements, we have developed many new types of roof support, including machine type, blasting type, centralized control type, liquid injection gun control type, large mining height type, etc.

 

 

部标型号Model Тип отраслевого стандарта	支撑高度(mm) Height (mm) Высота крепления	支架长度(mm) Length (mm) Длина крепи	宽度(mm)Width(mm) Ширина	工作阻力(KN) Working resistance(KN) Рабочее сопротивление	初撑力(KN) Setting load(KN) Начальный распор	支护行程(mm) Advance increment(mm) Ход крепления	支护强度(Mpa) Supporting strength(MPa) Прочность крепления	重量(t) Weight (t) Вес	对底板的压力(Mpa) Pressure on floor(MPa) Давление на подножку	支柱缸径(mm) Leg cylinder diameter(mm) Диаметр цилиндра стойки
2L1200/10/30/Yj3	1000-3000	1930-2930	755	1200	600	600	0.35-0.6	0.7-1.5	2-26	100
2L1800/16/24/Yj3	1600-2400			1800	900	700	0.5-0.9		4-28	125
2L2400/16/24/Yj3	1600-2400					800
2L2400/24/32/Yj3	2400-3200			2400	1200	900	0.7-1.2		3-20	140
						1000