Reverse circulation drill rig sold to Burkina Faso

Reverse circulation drilling rig selected by customers

For the high temperature and drought environment in Burkina Faso, YG launched the “Sahara Edition” RC drilling rig, the core configuration includes:

1. High-temperature resistant design: enhanced cooling system, continuous operation without frequency reduction under 55℃ working conditions;
2. Anti-sand upgrade: three-stage air filter, the service life in a dusty environment is extended by 3 times;
3. Power enhancement: turbocharged diesel engine, torque 12,000N·m, drilling speed of 4 meters/hour (hard rock);
4. Quick disassembly and assembly: modular structure, complete machine transfer assembly in 6 hours.
5. Typical customer: A medium-sized gold mining company in Ouagadougou purchased 2 RC-450Hs for intensified exploration and reserve assessment.

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Reverse circulation drill rig parameters

Model		YG150RC
Drill rig weight(crawler mounted)	kg	9000
Engine Power	kW	125
Length × Width × Height (normal)	mm	6750x2200x2950
Ambient Temperature Range	°C	-10～38
Drill Ability
Nominal Drill Depth	m	150
End-hole Diameter	mm	110-250
Drill angle	°	-10-90
Horizontal hole height	m	1.85-2.8
Drill head output
Max Output Torque	N.m	8000
Output Rotation Speed(continuity)	rpm	30 / 60, 54/108rpm
Output Rotation Speed(interval)	rpm	62 / 124105/210rpm
Feeding	mm	3500
Thrust Force	kN	45
Lifting Capacity	kN	65
Pipe-puller Device Output
Output Rotation Speed	rpm	40
Max Output Torque	N.m	30000
Hole-through Diameter	mm	370
Auxiliary Winch
Pull Force of the First Layer	kN	11
Rope Diameter	mm	14
Rope Capacity	m	60
Engine(Cummins)		6BTA5.9-C125
Power	kW	125
Rotary Speed (Max.)	rpm	2200
Track Chassis Base
Walk Speed	Km/h	1.2
Unit Pressure	MPa	＜0.05
Climb Ability	°	≥20

Background of customer purchase of reverse circulation drilling rig

A foreign-funded mining company carried out a resource expansion plan in the Houndé gold mining belt. The original drilling rig had an average daily footage of only 35 meters, which could not meet the goal of completing 500 exploration holes within 6 months.

YG Solution

1. Provide 4 RC-450H drilling rigs with French operating interface;
2. Customize φ200mm drill bits to adapt to high quartz content formations;
3. Train 15 local operators and establish an on-site maintenance station.

Project Results

1. The average daily footage increased to 90 meters, and the exploration was completed 2 months ahead of schedule;
2. The error of gold grade analysis of rock cuttings samples was reduced from 8% to 2%;
3. Customer evaluation: “The stability of the YG drilling rig far exceeded expectations and helped us lock in 3 high-grade veins!”

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Advantages of YG’s reverse circulation drilling machine

1. Ultra-long life: Key components (such as drill rods and impactors) are made of German steel with a life of 8,000 hours (the industry average is 5,000 hours);
2. Energy saving and consumption reduction: Intelligent power matching system, diesel consumption is reduced by 20%;
3. Accurate data: Integrated automatic cuttings collection device, sample representative rate ≥ 95%;
4. Flexible expansion: Optional mud pump module to cope with complex hydrological formations.

Why does Burkina Faso buy RC drilling equipment?

As an emerging gold producer in West Africa, Burkina Faso’s gold mine output accounts for more than 10% of GDP, but traditional drilling equipment faces three major challenges:

1. Hard rock penetration is difficult: granite formations account for more than 60% of the mining area, and the compressive strength reaches 250MPa;
2. High sampling error: Manual operation leads to misjudgment of gold grade and loss of potential benefits;
3. High operation and maintenance costs: European imported equipment is expensive, and the waiting period for accessories is as long as 3 months.
   Therefore, local mining companies are in urgent need of reverse circulation drills (RC drills) with high cost-effectiveness, strong adaptability and localized services to quickly verify mineral reserves.