A down the hole drilling rig is designed for rock drilling in mines, quarries, construction sites, and other engineering projects. It uses a down-the-hole hammer to transfer impact energy directly to the drill bit. The machine combines impact, rotation, and feed movements to penetrate rock formations. Different models support different hole diameters, machine sizes, and site conditions. Buyers need to consider rock hardness, drilling depth, hole diameter, and transport requirements when selecting a rig.
Down The Hole Drilling Rig Parameters
| Model | YGS100A | YGS153 | YGS180 | YGS300 | YGS350 |
| Total weight | 5.95T | 3.8T | 6.3T | 6.8T | 8T |
| Walking speed | 2.5km/h | 2.5km/h | 2.5km/h | 2.2/3.8km/h | 4km/h / 2km/h |
| Diesel tank capacity | 85L | 70L | 85L | 85L | 225L |
| Shipping size | 6500×2100×2400mm | 4640×1980×2260mm | 6600×2110×2500mm | 6600×2220×2600mm | 7600×2350×2800mm |
| Drilling hole diameter | 90-146mm | 83-130mm | 90-146mm | 90-152mm | 90-165mm |
| Power configuration | YCD4R22T-80 | YC2108 33kw/2400rpm | YCD4R22T-80 55kw | YC4DK80-T302 | YC4DK100-T304 73.5kw/2200rpm |
| Highest horizontal hole height | 3.2m | 2.8m | 3.6m | 3.25m | 3.5m |
Key Advantages of a DTH Drilling Rig
1. Easy Operation
The rig features a clear control panel and hydraulic pilot controls. Operators can manage drilling movements through straightforward controls. This layout shortens training time and reduces fatigue during long working shifts.
2. Fast Drilling Speed
A high-performance DTH hammer delivers impact energy to the drill bit at the bottom of the hole. The drive system coordinates rotation and feed to maintain drilling progress in rock formations. Drilling speed varies with rock hardness, hole diameter, hammer specifications, and air supply.
3. Compact Structure
The rig combines its power, control, and travel systems in a compact layout. This design allows the machine to move through narrow mine benches and restricted work areas. It also reduces space requirements at drilling sites with limited access.
4. Convenient Transportation
The rig’s dimensions and modular structure simplify transport between work sites. Depending on the model, standard trucks can carry the machine or its main components. Buyers need to check transport dimensions, total weight, and local road limits before shipment.
5. Modular Design for Easy Disassembly
Selected models allow workers to detach major components, such as the mast and power unit, before transport. This arrangement simplifies loading and reassembly when the rig moves between mining sites. The disassembly process varies by model and configuration.
6. High Operating Efficiency
The hammer breaks rock at the bottom of the hole, while the drilling system advances the bit. A suitable dust collection and debris removal system clears cuttings from the work area. These functions reduce interruptions and keep drilling operations moving.
Applications of a Down The Hole Drilling Rig
Mining and Quarrying
A Mining Drilling Rig supports blast-hole drilling in open-pit mines and quarries. Project teams select the hole diameter and drilling tools according to the blasting design. They also consider rock hardness, target depth, and daily production requirements.
Construction and Foundation Work
Construction teams use a Crawler DTH Drilling Rig for rock drilling in road projects, foundation works, and other engineering sites. Its crawler undercarriage supports movement between drilling positions. Before operation, teams need to assess ground conditions, working space, and access routes.
Water Conservancy and Geological Projects
Some water conservancy projects, slope works, and geological investigations require drilling through rock layers. Contractors select the drill bit, hammer, and rod according to the formation and project specifications. They also follow site-specific safety and geological requirements.
DTH Drilling Rig Configuration and Selection
Different drive systems and drilling tools serve different working conditions. Buyers need to check the full configuration before placing an order.
Electro-hydraulic type: This version typically includes a drill rod, motor, hammer, and drill bit. The exact hydraulic and drive components depend on the model.
All-electric type: This version uses an electric drive system. Buyers need to confirm the power supply and operating requirements at the site.
Fully pneumatic type: This version uses compressed air to operate the pneumatic drilling system. It typically includes a drill rod, hammer, and drill bit. The system also requires a compatible air compressor.
Drilling tools also vary by formation. Soil drilling typically uses auger drill rods and three-wing alloy drill bits. Rock drilling generally uses round steel drill rods, a DTH hammer, and alloy drill bits.
Before selecting a machine, consider these factors:
- Hole diameter and depth: Match the model to the project specifications.
- Rock conditions: Select drilling tools according to rock hardness and formation characteristics.
- Air compressor capacity: Check the required working pressure and air delivery rate.
- Transport requirements: Confirm machine dimensions, weight, loading methods, and road access.
FAQ
What types of machines are available?
YG Machinery offers electro-hydraulic, all-electric, and fully pneumatic versions. Customers can also select crawler tracks when the model supports this option.
What configurations do the down the hole drilling rig offer?
The electro-hydraulic version typically includes a drill rod, motor, hammer, and drill bit. The pneumatic version typically includes a drill rod, hammer, and drill bit. Customers need to confirm the complete configuration for the selected model.
Can the pneumatic down the hole drilling rig drill soil layers?
Yes. With a compatible air compressor and suitable auger drill rods, the pneumatic rig can perform certain soil drilling tasks. Actual performance depends on soil conditions and machine configuration.
Is the configuration the same for soil and rock drilling?
No. Soil drilling typically uses auger drill rods and three-wing alloy drill bits. Rock drilling generally uses round steel drill rods, hammers, and alloy drill bits. Customers need to select the tools according to the ground conditions.
How does the machine come packaged? Does the buyer pay for shipping?
YG Machinery typically packs the rig in wooden crates. The buyer usually covers shipping costs. The final packaging method and freight terms depend on the order and shipping agreement.
About YG Machinery
YG Machinery is a professional drilling equipment manufacturer with decades of industry experience. We company offers product selection support, technical documents, shipping coordination, and after-sales technical assistance.
In additional to down the hole drilling rig drill, YG Machinery also offers crawler water well drilling rigs, hydraulic rotary drilling rig, rotary drilling rig machine, and crawler rotary drilling rig. These machines serve different drilling and foundation construction tasks. Customers can select equipment according to project specifications, geological conditions, and site requirements.
