Shaft Drilling Jumbo, Pneumatic Shaft Jumbo, SJZ (Vertical Shaft Drill)

Shaft Drilling Jumbo, Pneumatic Shaft Jumbo, SJZ  (Vertical Shaft Drill)
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SJZ series vertical shaft drill is a special equipment to drill blastholes for construction of vertical shaft. It suits a wide range of shaft diameters, and features of flexible operation, precise positioning and reliable safety. It is powered by pressed air, transmitted by hydraulic system, and all the movements of drill mounting are machine motivated. Equipped efficiency of drilling blastholes are naturally upgraded, thus auxiliary working time is greatly saved.

Technical Specifications
Item Unit SJZ3.5 SJZ4.5 SJZ5.5 SJZ5.6 SJZ6.7
Vertical shaft diameter m 4-5 4-6 4-6 5-7 6-8
Retracted dimension m ⌀1.4×6 ⌀1.6×6 ⌀1.7×6 ⌀1.9×7.2 ⌀1.9×7.2
Boom pcs 3 4 5 5 6
Boom swing angle ° 150 150 150 150 120
Drilling range m ⌀1.65-6 ⌀1.65-6 ⌀1.65-6.3 ⌀1.65-8.2 ⌀1.65-8.2
Drifter YGZ70 YGZ70 YGZ70 YGZ70 YGZ70
Oil pump power kW 5.8 5.8 5.8 5.8 5.8
Working pressure Mpa 10-12 10-12 10-12 10-12 10-12
Feed stroke m 3.5 3.5 3.5 4.3 4.3
Air pressure Mpa 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7 0.5-0.7
Air consumption ㎡/min 38 48 58 68 68
Rod length m 3.9 3.9 3.9 4.7 4.7
Bit diameter mm ⌀38-55 ⌀38-55 ⌀38-55 ⌀38-55 ⌀38-55
Total weight kg 4100 4700 5300 6300 7800
Water pressure Mpa 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5 0.3-0.5
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