- JDL-300 mechanical top drive core drilling rig
一、Introduction of JDL-300 mechanical top drive core drilling rig
JDL-300 mud/air drilling rig is a water well drilling rig that mix mud drilling rig and air drilling rig in one equipment with mechanical top head. It is a good solution to the difficulty of drilling in the soil layer for DTH rig and the low efficiency of drilling for mud rotary rig in the hard rock, gravel and pebble layer. The mud/air drilling rig adapts to various soil strata. The mud/air drilling rig is efficiency and energy saving to drill water well and geological exploration of core sample.
二、Features of JDL-300 mechanical top drive core drilling rig
（1）The rig can be equipped with a five-speed manual integrated gearbox, hydraulically separated bearings, full synchronizer shifting, high reliability and long service life.
（2）The drilling rig adopts a mechanical winch, which has a fast lifting speed and is easy to handle the bottom hole accident.
三、Parameters of JDL-300 mechanical top drive core drilling rig
| JDL-300 mechanical top drive core drilling rig | ||
|---|---|---|
| Working stratum | Loose soil layer and bed rock(hardness:F6~20) | |
| Drilling
method |
Mechanical top head rotation, hydraulic feeding,
work with mud pump or DTH. |
|
| Drilling
capacity |
Φ42 Mud drilling depth | 530m |
| NQ wireline coring | 600m | |
| Φ75 Air Drilling depth | 300m | |
| Borehole dia. | ≤Φ350 | |
|
Power |
Diesel engine model | YN27 |
| Rated power | 42kw | |
| Rated speed | 2400rpm | |
| Drive
head |
Rotary speed | 50~10200r/min |
| Max. torque | 5000N.m | |
| Feeding
system |
Lifting capacity | 4T |
| Thrusting capacity | 2.1T | |
| Winch
capacity |
Hydraulic tool winch(optional) | 1.5T |
| Mechanical winch | 4.5T | |
| Drill
pipe |
Drill pipe dia. | Φ76/Φ89/Φ102 |
| Drill pipe length | 3000mm | |
| Crawler
chassis |
Walking speed | 0~2km/h |
| Climbing angle | 20° | |
| Dimension | Transport | 5380*1575*2500mm |
| Working | 3480*1575*6280mm | |
| Weight | 4380kg | |
| Air
compressor |
Air pressure | 10.5~24.6bar |
| Air consumption | 16~35m³/min | |
Note: The product is continuously improved, and subject to change without notice, please refer to the actual product.
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