Reverse circulation drilling rig
A reverse circulation drilling rig is a specialized drilling system designed for vertical or inclined boreholes, commonly used in water well drilling, geothermal projects, and mineral exploration. It operates using a reverse flow of drilling fluid to efficiently transport cuttings from the drill bit back to the surface through the inner tube of the drill pipe.
This method ensures faster penetration rates, improved sample quality, and reduced contamination, making it ideal for deep borehole applications and complex geological conditions.
What Is a Reverse Circulation (RC) Drill Rig?
A reverse circulation (RC) drilling rig is a specialized type of geological exploration equipment designed for efficient and accurate subsurface investigation. Commonly used in geology, mineral exploration, hydrogeology, and engineering, this rig creates boreholes beneath the surface to collect soil and rock samples, especially in deep or hard rock formations.
Unlike conventional drilling methods, the RC rig employs dual-wall drill rods: compressed air is injected between the outer and inner tubes, forcing the cuttings to travel back up through the center pipe to the surface. This reverse flow not only improves drilling speed and sample quality but also minimizes contamination, making it ideal for precise geochemical analysis.
Key applications include:
Large-diameter boreholes
Cepat, deep penetration in hard ground
Rock core or chip sampling
Site surveys for mining, konstruksi, and water resource projects
RC drilling rigs offer a reliable solution for obtaining accurate geological data and are essential tools in early-stage resource assessment and engineering site evaluation.
A reverse circulation drilling rig is a drilling equipment suitable for vertical or inclined drilling.
The reverse circulation system has a fast drilling speed and is particularly suitable for large-diameter hole construction.
Reverse circulation drilling rig data parameters
| Model | RCD-180RC | RCD-220RC | RCD-300RC | RCD-500RC |
| Total Weight (kg) | 9500 | 9800 | 10000 | 12000 |
| Length × Width × Height (Shipping status)(mm) | 6350× 2200 × 2950 | 6300×2000×2500 | 6750×2300×2800 | 7650×2250×3217 |
| Kedalaman bor nominal (M) | 180 | 250 | 250 | 500 |
| Diameter bor (mm) | φ100~φ350 | φ100~φ350 | φ100~φ350 | φ100~φ350 |
| Output kepala bor: Kecepatan rotasi output (RPM) | 40/80 70/140 | 40/80 70/140 | 55/110 | 30/60 52/104 |
| Output kepala bor: Torsi output maks (N · m) | 8500 | 8500 | 10000 | 12000 |
| Stroke power head: Makanan (mm) | 3500 | 3500 | 3500 | 7000 |
| Stroke power head: Kekuatan dorong (kn) | 45 | 45 | 45 | 100 |
| Stroke power head: Kapasitas pengangkatan (kn) | 60 | 85 | 150 | 160 |
| Jenis drive engine: Model | Cummins | Cummins | Cummins | Cummins |
| Jenis drive engine: Kekuatan | 6BT-C180 / 132KW | 6BT-C180 / 132KW | 6BT-C180 / 132KW | 6BT-C190 / 142KW |
| Jenis drive engine: Kecepatan putar (RPM) | 2200 | 2200 | 2200 | 2200 |
| Jenis drive engine: Daya listrik opsional | 55+37 KW | 55+37 KW | - - | - - |
| Lacak basis sasis: Lebar pedrail (mm) | 400 | 400 | 400 | 400 |
| Lacak basis sasis: Kecepatan berjalan (km/h) | 2 | 2 | 2 | 2 |
| Lacak basis sasis: Kemampuan memanjat (°) | ≤ 20 | ≤ 20 | ≤ 20 | ≤ 20 |
