YGRC-350
1. 129kW engine delivering powerful performance × 8000–12000 N·m of torque
2. High torque × 260 kN lifting capacity × medium-to-high air pressure reverse-circulation cuttings removal
3. Maximum drilling depth of 350 m with a hole diameter of 105–400 mm—capable of handling deep, large-diameter holes, hard rock, and challenging strata with a single machine. A reliable choice for reducing costs and increasing efficiency in hydrological exploration and well construction.
Product Description：
This machine is an air-lift reverse-circulation drilling rig designed specifically for medium-to-deep hole exploration and well construction. Powered by an independent diesel engine, it ensures highly efficient drilling even in remote field locations lacking a power supply; it is also highly mobile and easy to relocate. Utilizing an air-lift reverse-circulation technique for robust cuttings removal, the system rapidly transports rock fragments to the surface via an airflow, preventing them from being crushed repeatedly. This significantly increases drilling speed, ensures clean borehole walls, and achieves high verticality—maintaining stable and reliable performance even at depths of up to 350 meters.
Product Features：
1. Weichai Power: Uninterrupted Operation in Remote Areas Without External Power
Equipped with a Weichai engine—delivering a rated power of 129 kW at 2200 rpm—the unit offers robust performance, reliable quality, and ease of maintenance. Powered independently by a diesel engine, it can operate at full capacity even in remote locations lacking an external power supply, while ensuring flexible mobility for site transitions.
2. Precision-Matched for Medium-to-High Air Pressure: Fast, Clean Hole Formation
Designed for use with air compressors providing an operating pressure of 1.7–3.5 MPa and an air delivery rate of 17–42 m³/min, the system is precisely matched with medium-to-high-pressure reverse-circulation (RC) down-the-hole (DTH) hammers. With ample airflow and stable pressure, the powerful reverse-circulation slag removal system ensures rapid transport of rock cuttings to the surface, preventing secondary crushing. This results in high drilling speeds, clean borehole walls, and excellent verticality.
3. Crawler-Mounted: Highly Mobile and Easy to Relocate
Featuring a travel speed of 2–3 km/h and a 25° gradeability, the unit is well-suited for navigating complex job-site terrain.
Product Specifications：
YGRC-350 Reverse Circulation Down-the-Hole (DTH) Drill Rig
The weight（T） | 8 | Drill pipe diameter（mm | Φ89 Φ102Φ114 |
The hole diameter（mm） | 105-400 | Drill pipe length（m） | 1.5/2.0/3.0 |
Drilling depth（m） | 350 | Rig lifting force（T） | 20 |
One-time advance length（m） | 3.3 | Rapid rise speed（m/min） | 20 |
Walking speed（km/h） | 2.5 | Fast feeding speed（m/min） | 40 |
Climbing angles（Max.） | 30 | Working state (mm) | 4200×3000×6100 |
Equipped capacitor（KW） | 129 | Hoisting force of winch（T) | 1.5 |
Using air pressure(MPA) | 1.7-3.5 | Swing torque(N.m) | 8000-12000 |
Air consumption（m³/min） | 17-42 | Dimension(mm) | 5900×2100×2500 |
Swing speed(rpm) | 40-160 | Equipped with hammer | Medium and high wind pressure series |
The penetration efficiency(m/h) | 10-35 | High leg stroke(m) | 1.4 |
The engine brand | Weichai engine | ||
Application Scenarios：
Widely applicable to projects such as hydrogeological exploration, geothermal well drilling, pile foundation drilling, and mineral exploration. This YGRC‑350 reverse‑circulation down‑the‑hole (DTH) drill rig, as a high‑performance air‑lift reverse‑circulation drilling rig, delivers reliable drilling performance for medium‑deep hole construction across diverse complex working conditions, especially for remote off‑grid job sites with no grid power supply.
It excels at rural & farmland water well drilling, constructing drinking‑water supply wells and farm irrigation wells in mountainous zones, pastoral areas and arid outlying regions; its crawler chassis enables smooth travel over rough terrain, making it an ideal remote off‑grid drilling solution for field water‑supply projects.
In geological & mineral prospecting fields, this crawler reverse circulation DTH drill rig supports high‑quality rock sampling for metal mineral exploration, geological mapping and resource assessment. Adopting air‑lift reverse‑circulation slag removal technology, it obtains less‑contaminated rock cuttings, greatly improving sampling accuracy for exploration teams.
For geothermal engineering, the machine performs efficient geothermal well drilling and ground‑source heat pump borehole construction, handling hard rock and mixed strata stably with high borehole verticality and clean borehole walls.
It also fits geotechnical investigation and infrastructure construction tasks, including road, bridge and building foundation pile‑drilling, geological survey for tunnel projects, and groundwater monitoring well installation. Thanks to independent diesel power and strong gradeability, the YGRC‑350 RC drill rig can carry out continuous hard rock water well drilling and engineering drilling in high‑altitude, mountainous, desert and other harsh field environments without external electricity support, meeting various field emergency drilling and mobile construction demands for global drilling contractors.
Product Description： In deep-hole drilling projects, the most expensive factor isn't the equipment—it’s time. The deeper the hole, the more time is consumed by connecting/disconnecting drill rods and tripping the drill string. The YGRC-800 self propelled reverse circulation drill rig is designed spe
Product Description： The YGRC-200 is a 200-meter-class, crawler-mounted, self-propelled reverse circulation exploration drill rig. It offers a maximum drilling depth of 200 meters and a hole diameter range of 140–254 mm. Equipped with a medium-to-high air-pressure down-the-hole (DTH) hammer, it achi
Product Description ： The YGQZ-500 well drilling rig utilizes a pneumatic down-the-hole (DTH) impact drilling process. It features a maximum drilling depth of 500 meters and a borehole diameter range of 140–350 mm. Powered by a diesel engine and mounted on a hydraulic crawler chassis, the unit is eq
