Electric drilling rig SBSh-250 MNA-32.

We will select a modification of the SBSh-250 drilling rig according to the technical specifications of your enterprise. SBSh-250 is the best solution for drilling technological blast holes. Electric drilling rig SBSh-250 MNA-32 drills blast holes in rocks with a strength of 6-18 units. on the scale of prof. Protodyakonov in open pit mining. The machine consists of a caterpillar track and an engine room with a driver's cab and a mast mounted on it. Links, wheels and rollers are cast from high-alloy steel with heat treatment using a special technology. The tracks are tensioned by a double-acting hydraulic cylinder. The inclined surface of the frame and the installation of supporting rollers on the cantilever axle prevent them from slugging and sticking of soil when working in wet conditions. Bearings filled with grease for a lifetime are used in the bearing units of the caterpillar track. , sheathed with a metal sheet. Inside is located: a compressor unit; an oil station, the main working elements of which are: the main pump with adjustable performance, which ensures the creation of a given force on the drilling rod and other operations; auxiliary pump – provides quick lowering and lifting of the drill string when building up or disassembling it; rotator and travel drives, electrical cabinets and other equipment. Two Schneider Elektric frequency converters provide control of asynchronous travel motors when moving the SBSH-250 drilling rig. In the process of drilling, the converters switch to control the asynchronous electric motors of the rotator and the hydraulic pump. As an option, the machine can be equipped with a dry dust suppression system, consisting of a dust extraction chamber, coarse cyclones, fine filters and a suction fan. Manufactured with insulated walls, ceiling and floor, it creates comfortable conditions for service personnel. To reduce vibration when drilling hard rock, the cabin can be installed on jacks and separated from the engine room. For the drilling rig operator there is a vibration-proof seat adjustable in height, to control the drilling process and control the operation of the basic units of the drilling rig, there are conveniently located consoles with indication of drilling parameters and the state of the working Doors with reliable locks and seals ensure tightness, and the air conditioner, supplying purified air, creates excess pressure. At subzero temperatures, the heater turns on. Conveniently located windows provide the driver with a good view of the working mechanisms. Bored mast The SBSh-250MNA-32 mast is a spatial structure, which is fastened to supports through sliding bearings. Installation of the mast in the working or transport position is carried out by two hydraulic cylinders. Fastening it to the working position is done with two clamps. Those. specifications Execution, mm -37 -37-02 -37-03 -37-04 -37-05 -37-06 -37-07 Borehole diameter, mm 250 250 250 250 250 190 250 Rod length m 8.2 8.2 8.2 8.2 8.2 11.4 8.2 Number of rods 4 6 (2 separators) 6 (2 separators) 4 4 5 4 Drilling depth, m 32 47 47 32 32 55 32 Dust suppression method wet wet wet wet wet wet wet Supply voltage, V 380 380 380 380 6000 380 6000 Total set. power, kW 460 460 490 490 490 500 500 Rotator motor power, kW 90 DC current 90 DC current 90 a.c. current with frequency adjustable 90 perm. current with frequency adjustable 90 perm. current with frequency adjustable 120 120 Speed of lowering / lifting of the drill. projectile, m / min. 25/25 25/25 25/25 25/25 25/25 25/25 25/25 Feed rate of the drillstring to the bottom, m / min. 0… 3 0… 3 0… 3 0… 3 0… 3 0… 3 0… 3 Compressor capacity, m3 / min. 32 32 32 32 32 32 32 Rot. Boer. speed rpm 0… 120 0… 120 0… 120 0… 120 0… 120 0… 120 0… 120 Motor power. stroke drive, kW 2х35 DC adjustable speed 2х35 DC adjustable speed 2х45 AC adjustable speed (frequency control) 2×45 AC speed control (frequency control) 2×45 AC speed control (frequency control) 2×50 DC variable speed 2×50 DC variable speed Travel speed, km / h 0-1.3 0-1.3 0-1.8 0-1.8 0-1.8 0-1.8 0-1.8 Max overcoming angle, deg. 12 12 12 12 12 12 12 Weight, kg 80,000 80,000 80,000 80,000 80,000 90,000 85,000 Overall dimensions with the mast raised, m length 10.5 10.5 10.5 10.5 10.5 9.9 10.5 width 5.7 5.7 5.7 5.7 6.1 6 5.7 height 16.2 16.2 16.2 16.2 16.2 19.8 16.2 Overall dimensions with the mast lowered, m length 15.6 15 , 6 15.6 15.6 15.6 19.2 15.6 width 5.7 5.7 5.7 5.7 6.1 6 5.7 height 6.6 7.1 7.1 6.6 6.6 7.3 6.6