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1. Technique description and performance:
   • TST-300 Drilling rig are designed with air, mud and air hammer drilling. It is applicable for seismic prospecting in complex stratum area such as Gobi, desert, river bed and gravel etc. Mainly uses imported components. It is mounted on 6X6 off-road chassis with steady performance, low maintenance cost and easy to operation.
   • It can carry out liquid normal circulation, air normal circulation and non medium (auger drilling) many drilling methods.
   • Adopts full hydraulic drive, central control, facilitate operating and reliable.
   • Power takes from the chassis engine. After changing in transfer case, power of chassis engine will be sent to hydraulic system.
   • Mud pump and air compressor uses the same hydraulic system. Controlled by hydraulic valve. Install un-directional valve on air pipeline to prevent mud getting into air compressor system.
   • Drilling rig system works by two hydraulic variable pump work through series-parallel connection. Power swivel uses double speed motor driving with big rev and torque scope. It has a broad applicability.
   • Top-driving improves drilling efficiency highly. End frame at end part is leveled through hydraulic system.
   • Pulldown speed control system of drilling rig has the function of self-adapting to stratum. It doesn’t need manpower non-stop operating down hydraulic level. Drilling system can carry out possible max speed to do drilling according to stratum situation.
     
   • Specially designed two pieces of hoisting chains auto equalizer can improve the system’s security and reliability. Drilling rigs meet QHSE requirements.
   • Chassis chosen for drilling rig include: Tiema China, THE YOUNG MAN TRUCK, China or Benz.
2. Main technical parameter of drilling rig:

1. Optimum working ambient temperature: -10～40℃.
2. Optimum working altitude height: lower than 2000 meters.
3. Drilling method: air/air hammer drilling & water drilling
4. Working rev: 1600r/min (drilling rig system) and 1750r/min (circulation medium system)
5. Max drilling depth: air drilling and air hammer drilling: 120 meters & water drilling: 300 meters
6. Drilling tools

Drilling pipe: Φ60×6100mm

Drilling bits: 3-1/2” to 7-1/2”

1. Power swivel:

Max output torque: 6350 N.m

Output rev: 0～300 r/min

Velocity ratio: 2.16 (67/31)

1. Pull-down & pull up system:

Pull-down force: 24kN

Pull up force: 82.5 kN

Pull up speed: 0～0.85 m/s

Auto drilling down speed: 0.45 m/s

1. Hydraulic system: working pressure: 25/20.5/20.5 Mpa.
2. Air compressor

Displacement/pressure: 12.5 m3/min /0.8 Mpa

1. Mud pump

  Model 1000/40 duplex double action piston type

  Max.  pressure 4 Mpa

  Rated displacement 1000 Liter/Min

1. Mast: door type truss structure
2. Chassis (made in China)

Truck type: Tiema (TM)

Drive type:  6X6

Engine power (kW/rpm): 225/2200

1. Drilling rig overall dimension(mm): about 11185×2500×3850

Drilling rig weight (kg): about 22000

If you are also interested in other drilling rigs see

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