RH-3 is a new type of core drilling rig which is developed especially to meet the need of various drilling process mainly in diamond drilling, the power machine of which can be either motor or diesel engine. This drilling rig has the following advantages:
1 The drill can meet the various high efficiency drilling process requirements such as the diamond cable, concussion turning, orientation drilling and reverse circulation core-drilling.
1)The wider range of vertical RH-3 drill speed can be set into many gears and the range of 33-1002r/min can be divided into nine forward gear and two reverse gear to meet the different need of various drilling process.
2)Equipped with the anti-torque gear to hold the spindle without rotation, the drill operation during orientation drilling is very convenient.
3)The monitor and alarm of the parameters such as the torque and related drilling can be realized.
The drill can be run with high reliability
1)The drill is equipped with the gear-box, clutch and universal drive shaft of the light automobile for high reliability, long fife and convenient replacement.
2)Adopting the connecting rod reinforcement spring cramp, hydraulic loosen chuck which is off normally and carbide inserted pipe slips, the clamping can be with large force, longevity and high reliability.
3)There are oil filters both in the oil absorbing and retuning of the hydraulic system. So the hydraulic oil can be kept clean and the reliability of hydraulic system can be improved.
3 It's equipped with bile bottom pressure gauge to conveniently keep the information of the hole insider.
EngineNameElectrical motorDiesel engine model
Chisel in the abilityDrilling rod dia(mm)Drilling depth (m)Final hole dia (mm)
Drilling rod of wires to core Φ 55.560059
Drilling rod of wires to core Φ 7145076
Drilling rod of wires to core Φ 8930095
Ordinary drill rod Φ 5450059
Ordinary drill rod Φ 6040076
Double wall drill rod Φ 7328076
Swivel headSpindle speed (r/min)
Spindle diameter (mm)76
Pull-down systemTypeDuplex piston
Rising capacity (KN)
Pressurizes the ability (KN)Rated: 45, Max55
Single-rope lifting-force (KN)Max 30
Single-rope lifting-speed (ms)0.721.21.822.38
Roll diameter (mm)220
Steel cable diameter (mm)14
System press (MPa)8 Max 5
Mobile oil cylinder stroke (mm)460
Dimensions (L*W*H) (mm)2490*920*1910