Shanghai Jintai Engineering Machinery Co., Ltd.
Engineering Equipment, Rotary Drilling Rig Manufacturer
HomeEngineering MachinerySD series Rotary Drilling Rig
SD series Rotary Drilling Rig

SD series Rotary Drilling Rig

* It is proved to drilling in many strata such as clay, unconsolidated soil, sand soil, silt stratum, backfilled earth, the stratum of gravel, weathered rock and frozen ground, etc.

Structure and Features of Rotary Drilling Rig:
* Chassis: extensible chassis with strong flexibility to improve stability of rotary drilling rig.
* Power parts: Cummins series turbocharged engine, which with good reliability
* Electric control system: adopts the leveling system from Shanghai PalFin Co., Ltd.
* Hydraulic power system: rotary drilling rig adopts hydraulic transmission control system in an effort to control the power load timely.
* Tower: three section foldable backstay, the height can be adjusted during transportation.
* Kelly bar: Friction Kelly bar and interlocking Kelly bar can be chosen to mount on this engineering machinery.
* Drilling bit: this rotary drilling rig can be equipped with short auger bit, common drill bit or core bit.


Main Parameters of Rotary Drilling Rig:

Type SD15 SD20C SD20E SD25 SD25W SD28 SD28W
Drilling tower              
Height of tower (mm) 20100 21570 19800 23000 23000 22870 22870
Weight of base machine (without drilling tools)(kG) 45000 57000 53000 67000 67000 73000 74000
Pressure increasing system              
Stroke (mm) 4000 5000 5700 5700 10000 5700 10000
Pressure force (kN) 160 200 160 250 250 250 250
Pulling force (kN) 160 200 200 250 250 250 250
Main winch              
Single rope pulling force (kN) 140 200 180 220 220 250 250
Steel rope diameter (mm) 23 26 26 28 28 30 30
Lifting speed max.(m/min) 50 60 60 60 60 65 65
Auxiliary winch              
Single rope pulling force (kN) 75 75 75 75 75 75 75
Steel rope diameter (mm) 18 18 18 18 18 18 18
Lifting speed max.(m/min) 50 40 45 50 50 45 45
Base Machine              
Engine              
Diesel 6BTAA5.9-C Cummins C8.3 CAT C-7 Cummins QSL9 QSM11-C
Diesel engine power (kW) 133 196 187 221 263
Max. rotation speed (rpm) 2000 1900 1800 1850 1900
Hydraulic system              
Hydraulic system flow (L/min) 2*230 2*250 2*230 2*288 2*380
Hydraulic pressure (bar) 320 350 320 330 330
Rotary head              
Rotary torque (kN.m) 150 200 200 250 286
Rotary speed (r/min) 8~30 8~30 8~30 8~30 6~30
Chassis              
Extendable lower chassis model JT45 JT70B CAT320VH JT70A JT80
Track shoes width(mm) 800 700 800 800 800
Chassis length (mm) 5090 5400 4925 5680 5680
Chassis width(contraction/extension) (mm) 3200-4300 3150-4300 3200-4300 3200-4300 3300-4400
Towing force(kN) 280 430 410 500 500
Crawler speed(km/h) 1.5 1.5 1.5 1.5 1.8
Transport Weight (kg)              
  45000 57000 53000 67000 67500 73000 74000
Wherein: counter weight(kg) 8300 8300 7700 13000 13000 15000 15000
Drilling parameter              
Hole diameter(mm)           2400 2400
Uncased 1500 2000 2000 2000 2000 2400 2400
Cased 1000 1500 1500 1600 1600 2000 2000
Drilling depth(mm)              
Type of Kelly bar              
φ325/4 Inter-locking Type              
φ325/4 Friction Type              
φ406/3 Inter-locking Type   37.6 37.6        
φ406/4 Inter-locking Type   52.1 52.1        
φ406/5 Friction Type   62.7 62.7        
φ470/3 Inter-locking Type       45.2 45.2    
φ470/4 Inter-locking Type       52.1 52.1 45.6 45.6
φ470/4 Inter-locking Type       59.1 59.1 58.2 58.2
φ470/5 Friction Type           69.9 69.9
φ540/6 Friction Type           87 87


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