A HDD rig is a professional trenchless construction machine designed for underground pipeline installation. Different from traditional digging methods, this machine completes pipeline laying through underground directional drilling, which keeps road surfaces, green lands and buildings intact. Our factory-built HDD rig focuses on practical performance, stable operation and low environmental impact to meet various outdoor construction needs. Contact YG to learn more about how our horizontal directional drilling rig can benefit your company.
HDD Rig Specifications
| Model | YG-160A | YG-180 | YG-280 | YG-320 | YG-320A |
| Engine rated power | 100KW | 97KW | 160KW | 140KW/160KW | 160KW |
| Push and pull | Cylinder | Motor | Motor | Cylinder | Motor |
| Maximum drag/feed force | 160/100KN | 180/180KN | 280/280KN | 320/320KN | 320/320KN |
| The maximum torque of the powerhead | 5000N.n | 6000N.n | 10000N.n | 12000N.n | 12000N.n |
| Powerhead speed | 0-180r/min | 0-140r/min | 0-120r/min | 0-140r/min | 0-140r/min |
| Moving speed of the powerhead | 30m/min | 20m/min | 20m/min | 20m/min | 20m/min |
| Maximum reaming hole diameter | Φ600mm | Φ600mm | Φ750mm | Φ800mm | Φ800mm |
| Drill rod length (single) | 3m | 3m | 3m | 3m | 3m |
| Drill pipe diameter | Φ60mm | Φ60mm | Φ73mm | Φ73mm | Φ73mm |
| Drill pipe diameter | 10-23° | 10-22° | 10-23° | 10-20° | 10-20° |
| Maximum mudflow | 160L/min | 250L/min | 320L/min | 320L/min | 320L/min |
| Maximum mud pressure | 100bar | 80bar | 80bar | 80bar | 80bar |
| Overall quality | 6700kg | 8500kg | 12500kg | 11500kg | 11200kg |
| Dimension(length*width*height) | 5700*1820*2400mm | 6400*2270*2340mm | 7100*2260*2450mm | 7100*2250*2450mm | 7662*2162*2450mm |
Horizontal Directional Drilling Rig Key Working Principles
The horizontal directional drilling rig works with three core steps to finish full drilling and pipeline laying. The whole process is simple to understand and easy for workers to master after short training. It uses mechanical thrust and rotation to drill underground and adjust the drilling path accurately.
- Pilot Hole Drilling: The machine drills a small hole underground first. Don’t worry about rocks or old cables! Workers can change the drilling direction easily. It goes exactly where you want. It is like a smart scout opening the way.
- Hole Reaming: Next, we use a larger tool to widen the hole. We pump special mud inside. Why? To keep the soil stable and strong. This ensures the tunnel will not collapse, making room for your big pipes.
- Pipeline Pullback: Finally, the machine pulls the new pipe all the way back through the tunnel. Done! The pipe is safe underground. Best of all? The roads and green trees above stay perfect. No mess, no damage.
This mature working principle makes the directional drilling rig widely used in various underground construction fields. It greatly improves construction efficiency compared with traditional open-cut methods.
Top Practical Advantages Of Our Hdd Rig
Our self-produced HDD rig stands out in the construction machinery market for its multiple practical advantages. We focus on user experience and on-site construction demands, optimizing every core function to solve common construction pain points for users.
- Minimal Surface Damage: As a typical trenchless device, the HDD rig only occupies a small working area. It does not damage roads, lawns, bridges or river surfaces. It is the best choice for urban construction and scenic area projects where surface protection is required.
- Strong Terrain Adaptability: The machine can work in diverse terrains including soft soil, sand layer and ordinary rock layer. It adapts to complex working conditions such as under rivers, urban roads and dense building areas, with no strict site restriction.
- Low Operation And Maintenance Cost: The core parts of the HDD rig adopt wear-resistant and high-strength materials. The overall structure is simple, which reduces daily maintenance difficulty. It does not need frequent part replacement, saving time and labor costs for long-term construction.
- High Construction Safety: Trenchless drilling avoids trench collapse risks of traditional digging work. Workers operate the machine on the ground with a safe working distance, greatly reducing construction safety accidents.
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Common Applications for the Horizontal Drilling Rig in Cities
Urban utility projects require clean, safe, and quiet work. Using a horizontal drilling rig allows you to lay lines without digging up beautiful lawns, busy highways, or historic streets. It is the best choice for modern municipal construction because it keeps the city moving while you do your underground work. There is no need to block traffic or destroy expensive asphalt roads.
Our customers regularly use this machine for the following jobs:
- Water and Sewage Pipes: Installing thick HDPE or steel water lines deep underground with zero surface damage, ensuring clean water delivery to new neighborhoods.
- Power Cable Ducts: Crossing wide rivers or multi-lane highways to connect high-voltage electricity lines between city sub-stations safely.
- Gas Pipeline Network: Placing natural gas lines deep under busy city crossroads without stopping the daily traffic or disturbing local businesses.
- Telecom Fiber Optics: Fast and long-distance drilling to lay high-speed internet cables for schools, offices, and new residential areas.
The compact design of our machine allows it to enter narrow streets and small construction sites easily. Even if you have very little space next to a sidewalk, the machine can be anchored down tightly and start drilling immediately. This flexibility makes it a highly profitable tool for utility contractors who work in crowded downtown environments.
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Operation Tips For Long-Term Hdd Rig Service Life
Correct daily operation and maintenance can effectively extend the service life of the HDD rig and keep its working efficiency stable. We summarize simple and practical operation tips suitable for all users, with no complex professional steps.
Check Before You Start
Spend 5 minutes checking the machine every morning. Look for oil leaks or loose parts. Add oil to the pipe threads. This easy step saves you from big trouble during work.
Go Slow and Steady
Do not push the machine too fast. Match your speed with the mud flow. If the underground mud pressure jumps, stop pushing immediately. Let the mud clear out first.
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How to Choose the Right HDD Rig for Your Project
Different projects need different power. Look at our quick guide below to find the best machine for your business:
| Small cables & gas lines (Fiber optics, internet, small gas pipes) | YG-160A / YG-180 | It is small and easy to move. Perfect for narrow streets and sidewalks. It saves your transport money! |
| Water pipes & power lines (City water supply, main electric cables) | YG-280 | It has a super strong mud pump. It can easily push out dirty sand when making big holes under city roads. |
| Crossing rivers & heavy steel pipes (Long-distance drilling under rivers) | YG-320 / YG-320A | This is our monster machine. It provides maximum pull force to pull heavy steel pipes through tough rocks under rivers. |