Searching for a powerful drilling machine for hard rock construction? YG DTH drilling rig has two premium models: YG412 and YG420B. Both use a 58Kw Yuchai diesel engine, work for rock hardness f=6~20, walk at 2.5km/h and climb slopes up to 30°. YG412 supports 50~203mm drilling diameter and 30m maximum depth, while YG420B covers 50~150mm diameter and 40m drilling depth. If you need a reliable machine for mining or construction, this equipment is your best choice.
Why Is The YG DTH Machine Price Worth Your Investment?
When you buy equipment, you must check the technical specifications. The dth machine price depends on the quality of the parts inside. We build our machines with top-brand components to ensure long life.
Look at the professional parameters of YG popular models:
| Model | YG412 | YG420B |
| Drilling diameter(mm) | 50~203 | 50~150 |
| Rock hardness | f=6~20 | f=6~20 |
| Drilling depth (m) | 30 | 40 |
| Walking speed(km/h) | 2.5 | 2.5 |
| Gradeability | 30° | 30° |
| Power type | Diesel | Diesel |
| Fuel tank volume(L) | 85 | 85 |
| Hydraulic oil tank volume(L) | 188 | 188 |
Both models use a strong 58kW Yuchai diesel engine. They have a 188L hydraulic oil tank to keep the system cool during long working hours. The rubber tracks allow the 6300kg machine to move at 2.5 km/h on rough road surfaces. The heavy weight gives the machine excellent stability while operating on uneven hills.
Besides rock drilling, some construction sites also require concrete pile cutting tools. If you are doing foundation modifications, you can ask us about the hydraulic pile breaker price to save budget on your total project package. Buying multiple machines together helps you reduce shipping costs and project delays. Our sales team can design a complete equipment list based on your workplace blueprint.
How Borewell Machine DTH Rigs Work
Understanding the working process helps you run the machine better. A dth borewell machine uses compressed air to drive the impact hammer.
- The air compressor sends high-pressure air through the drill pipes.
- The air powers the hammer at the bottom of the hole.
- The hammer hits the rock repeatedly at a high speed.
- The drill bit rotates slowly to break the rock into small pieces.
- The rushing air blows the rock dust out of the hole immediately.
This continuous cleaning action keeps the bottom of the hole clean. It prevents the drill bit from getting stuck in mud or crushed stones. Operators can work for hours without worrying about blockages. The high air pressure also cools down the drilling tools, which extends the operating lifespan of the bit.
What Is The Difference Between Rotary Rig And DTH Rig?
Many people do not know how to choose between a rotary rig and a down-the-hole drilling rig. They work in different ways and suit different jobs.
- Working Method: A rotary rig crushes rock by turning a large drill bit with heavy pressure. A DTH rig uses a hammer that strikes the rock directly inside the hole while turning.
- Rock Hardness: Rotary rigs work best in soft ground, mud, or soil layers. A DTH machine handles hard rock easily and faces high-hardness stone without stopping.
- Drilling Speed: In hard rock, a DTH machine drills much faster than a rotary rig because the pneumatic hammer breaks stone efficiently.
- Hole Straightness: The DTH method keeps the hole very straight because the hammer guides the bit at the bottom of the hole.
Choosing the right method saves a lot of time. If you work on hard granite or limestone hills, you should always choose the DTH method to avoid destroying your equipment.
Where Can You Use this Down the Hole Drilling Rig?
YG down-the-hole drilling rig machines work well in many different industries. They have strong bodies and stable systems to face hard work.
1. Hydraulic DTH Drilling Rig for Open-Pit Mining
Mines need to blast rocks every day. Our machine drills blasting holes quickly. It can easily cut through rock with a hardness of f=6 to 20.
2. Hydraulic Rig for DTH Drilling Photovoltaic
Solar power fields need thousands of ground posts. This machine drives into tough terrain, climbs 30° hills, and drills holes for solar panel foundations fast.
3. Hydraulic DTH Drilling Rig for Infrastructure
Road and railway builders use our rigs to stabilize slopes. The machine creates anchor holes to keep big rocks from falling on roads.
4. Hydraulic DTH Drilling Rig for Hydropower Engineering
Dams and water projects require deep foundation drilling. Our equipment offers the stable power needed to drill under complex geological conditions.
Frequently Asked Questions About DTH Boring Tools
A1: Yes, it can. Our DTH drilling rig works with an air compressor, which is specially designed for drilling hard rock.
A2: It drills 20–30 meters per hour. The exact speed depends on your local geological conditions.
A3: Yes. The machine features a crawler track chassis. It can climb slopes up to 30° and move through muddy construction sites easily.
A4: Yes, it does. An air compressor is required for the DTH drilling rig to work properly.
A5：Yes. We provide matching air compressors that fit the exact pressure needs of our drilling rigs.