DTH Drilling Rig
A Down-the-Hole (DTH) drilling rig is an impact rotary drilling machine designed for efficient rock drilling in hard and complex geological formations. The core technology lies in the DTH hammer, a percussion mechanism that drives a piston inside the hammer body through compressed air, transmitting intensive percussion energy directly to the drill bit at the bottom of the hole to crush the rock.
Unlike conventional rotary drilling methods, DTH drilling positions the impactor directly at the bottom of the borehole, minimizing energy loss during transmission and significantly improving deep-hole drilling efficiency. This makes DTH rigs particularly effective in very hard soils and rock formations where traditional rotary methods may be inefficient or impractical.
Product Description
Our DTH drilling rigs integrate high-performance hammers, air compressors, and efficient dust suppression systems into a comprehensive drilling solution. Available in both pneumatic and hydraulic configurations, our rigs are engineered to deliver maximum productivity across a wide range of drilling applications.
Application of DTH Drilling Rig
Our DTH rigs can handle hole diameters ranging from 90mm to 500mm and drilling depths up to 30 meters or more, making them suitable for both small-scale and large-scale operations. DTH drilling rigs are versatile pieces of equipment widely used across multiple industries and project types:
Mining & Quarrying: Blast hole drilling for open-pit mining and quarry operations, Coal mining operations.
Construction & Infrastructure: Foundation piling and anchor drilling, Slope protection and foundation reinforcement,Railway and highway construction & Bridge construction and building foundations.
Other Applications: Water conservancy and hydropower projects, Urban construction and underground engineering & Defense and military engineering.
Technical of DTH Drilling Rig
| Model | ZD-420 | ZD-720 | ZD-720 |
| Drilling diameter | 90~127mm | 160~260mm | 260~500mm |
| Drilling Depth | 30M | 30M | 30M |
| Engine Power | 56Kw | 73.5Kw | 88Kw |
| Swing Torque | 2200N.m | 8000N.m | 13000N.m |
| Swing Speed | 0~150rpm | 0~90rpm | 0~80rpm |
| Dimension | 5.7*2.13*2.3M | 6*2.27*3M | 6*2.38*2.5M |
| Weight | 4620Kg | 6190Kg | 6800Kg |
What clients often ask
RFQ
ZeDing Mining Machinery Co., Ltd. has been researching and producing water well drilling rig, DTH drilling rig and supporting equipment for 20 years.FY series products have the characteristics of high drilling speed, economy and low failure rate
Well Drilling Machine,Drilling Tools and Accessories,Screw Air Compressor
Always a pre-production sample before mass production;always final inspection is done before shipment；and our main unit has a one-year warranty, during which all damaged accessories can be replaced with new ones. We provide machine installation and operation videos.
We accept all OEM orders,just contact us and give me your design.we will offer you a reasonable price and make samples for you ASAP.
We are professional manufacturer with big modern factory in Zhengzhou ,China.
All of our products coming with the certificates of CE,ISO9001.
Accepted Delivery Terms: FOB,CFR,CIF；
Accepted Payment Currency:USD,EUR,CAD,AUD,GBP,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,PayPal,Cash;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian