Drilling Diameter Φ105-130mm(4″-5″)
Capacity of Compressor 18m³/min(636cfm)
Pressure of Compressor：1.7MPa(218Psi)
Diesel Engine：Yuchai YC6L310-H300,228kw/310hp/ 2200r/min

Drilling Diameter: Φ90-115mm(4″-5″)
Capacity of Compressor: 12m³/min(425cfm)
Pressure of Compressor: 1.5MPa(218Psi)
Diesel Engine: Yuchai YCA07240-T300,176kw/240hp/ 2200r/min

Drilling Diameter：Φ90-125mm(4″-5″)
Capacity of Compressor：17m³/min(600cfm)
Pressure of Compressor ：1.7MPa(250Psi)
Diesel Engine：Yuchai YCA08280-T300,205kw/280hp or Cummins QSC8.3-C260-30 ,194kw/260hp