Underground Core Drilling Rig, Type ZLJ-2900

Underground Core Drilling Rig, Type ZLJ-2900
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Introductions

ZLJ-2900 underground drilling rig is suitable for core drilling mainly using diamond bit and carbide bit. It has the features of small size, light weight, large installed power, wide performances and strong generality. It can be used for coal mine exploration and underground drilling and drilling depths are 320m and 530m.

Parameters
Basic Parameters Drilling Depth 530m 320m
Borehole Diameter Φ42mm Φ60mm
Drill Rod Diameter Match with borehole
Power Unit Parameters
Gear 1 Gear 2 Gear 4 Gear 5 Gear 6 Gear 7 Gear 8 Reverse Gear 1 Reverse Gear 2
Output Rotation Speed (Forward and Reverse) 63 r/min 108 r/min 238 r/min 295 r/min 520 r/min 830 r/min 1148 r/min 51 r/min 242 r/min
Rated Maximum Output Torque 2900N·m
Vertical Feed Stroke 600mm
Main Winch Parameters Hoisting Capacity( Single Rope, First Floor) 30KN
Maximum Single Rope Hoisting Speed 1.948m/min
Rope Diameter 14mm
Rope Capacity 45m
Power Parameters Motor Model YBK2-180L-4
Power 22KW
Rotation Speed 1465r/min
Features
  • ZLJ-2900 drilling rig has many (8) rotation speed gears and reasonable rotation speed range (the highest is 1148r/min and the lowest is 63r/min) and torque is larger at low speed. This drilling rig has wide applications.
  • It has two gear reverse speeds (51r/min, 242r/min), which is convenient for accident treatment.
  • ZLJ-2900 drilling rig has small size, light weight and good disassembly performance. It only weighs 950kg excluding power engine weight. It can be disassembled into 8 parts of which the heaviest is 140kg so it's convenient for carrying
  • It has long vertical feed stroke of 600mm, which is helpful to increase drilling efficiency and reduce drill plugging and drill burning accidents.
  • Drilling is smooth and stable and fixing is simple. High-speed drilling has good stability.
  • It adopts dual oil pump to supply oil with less power consumption and the oil temperature of hydraulic system is lower.
  • Drilling pressure gauge and hydraulic pressure gauge are combined together and oil shockproof structure is adopted. This gauge has simple drilling pressure graduation, accurate indication and long service life.
  • It has less control handles and rational layout so the operation is flexible and reliable.
  • In addition to high-speed drilling, ZLJ-2900 drilling rig can also be used for low-speed large borehole drilling.
  • In addition to normally-closed hydraulic upper chuck, ZLJ-2900 drilling rig is also equipped with mechanical manual lower chuck.
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