1.The range of application of 15 meters crawler rotary pile drilling rig with square power rod The 15 meters crawler rotary pile drilling rig with square power rod is suitable for soil layer, clay layer, fill layer, silt layer, silt layer and some strata containing pebbles, gravel and strong weathered rock. It is widely used in building construction,, high speed rail contact network support, slope protection pile, city construction, civil building, new rural construction, power grid transformation, garden greening and many other projects. 2.The characteristics of 15 meters crawler rotary pile drilling rig with square power rod High efficiency and energy saving hydraulic system, large torque full hydraulic power head, 360 degrees of free rotation, wide application, high construction efficiency, stable performance, environmental protection and energy saving and other advantages, deep pile driving, fast speed convenient displacement. compared with large rotary drilling rig,This drilling rig has the characteristic of low cost of purchase, low cost of transportation, quick income. These characteristic shows its economy and engineering adaptability. 3.The technical parameters of 15 meters crawler rotary pile drilling rig with square power rod The 15 meters crawler rotary pile drilling rig with square power rod adopts two kinds of drilling models, self weight pressure and cylinder pressure, which can achieve 5-15 meters deep and using different sizes of drilling tools, the maximum diameter of pile holes can reach 1500mm. Item Unit Parameters XWDF-15 crawler rotary pile drilling rig with square power rod Working mode cylinder pressure wire rope deadweight Drilling hole diameter mm 500-1500 Drilling hole depth m 15 10-26 Dimension m 8.7*2.3*3.1 Weight (excluding drilling tools in standard configuration) t 13 Maximum torque of power head kn.m 26000 Power head rotating speed r/min 20-40 Turntable rotation angle Full gyration Maximum moving speed km/h 2.6 Maximum grade ability ° 25 Engine model / 6105 medium cold turbocharging in Weifang Engine power kw 145