Geothermal & Waterwell Drilling

Hanjin D&B Geothermal Drilling Rig 350W

D&B-350W

The D&B-350W is a heavy-duty deep hole drilling rig designed for large-scale geothermal and water well projects, capable of drilling beyond 5,000 meters

With a 350-ton pull-up capacity, the D&B-350W is designed for deep water well and geothermal drilling, reaching depths of over 5,000 meters. Powered by a Hyundai D6CC 600HP engine, it features a high-torque gearbox system and full automatic drill pipe handling technology for hands-free operation. This advanced rig ensures fast, safe, and efficient drilling in hard rock formations, deep aquifers, and complex geological conditions. 

Hard Rock Performance
Water Hammer Compatibility
Fuel Efficiency & Environmental Safety
Fast Setup & Mobility
Limestone, dolomite & crystalline rock
Up to 2x faster drilling & 50% less tool wear
Uses clean water circulation, reducing diesel consumption & aquifer contamination
Crawler-mounted for stability in remote & rugged terrains

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Exceptional Water Hammer Benefits

When equipped with Hanjin D&B’s water hammer technology, the D&B-350W achieves faster penetration rates while minimizing drill bit wear and operational costs. The high-impact reciprocating action reduces resistance in dense and fractured rock formations, enhancing borehole stability and drilling efficiency with lower fuel consumption. Unlike traditional rotary mud drilling, which generates excess waste and risks aquifer contamination, the water hammer system operates with clean water circulation, making it a safer and more environmentally responsible choice. Additionally, this fuel-efficient technology helps offset the energy demands of deep drilling, reducing diesel consumption while increasing overall productivity and cost-effectiveness.

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Up to 2x Faster Drilling Speeds

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Lower Fuel Costs/Energy Effecient

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Up to 50% Less Tool Wear & Tear

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Improved Borehole Stability

D&B 350W Specifications (Geothermal Drilling Rig)

Model Specifications
-DIMENSIONS & WEIGHT
OA Length-Transport in Meters
OA Width-Transport in Meters
OA Height-Transport in Meters
OA Height-Mast Up in Meters
Weight Without Accessories in Ton
-ENGINE DETAILS
Model (Diesel)
Cylinders
Rated HP @ 1800 rpm
Fuel Capacity in Liters
Cooling System
-TOP HEAD ROTATION
Model
Reduction
Performance
Max RPM
Max Torque
RPM/Torque (rpm/kNm.kg-m)
-FEED SYSTEM
Traverse Cylinder (mm x mm x mm)
Head Travel (1st) in Millimeter
Dump Mast/Up in Meters
Dump Mast/Down in Meters
Pull-Up Capacity in Ton
Pull-Down Capacity in Ton
Feed Speed-Down (Variable) Meters/Min
Fast Speed-Up (Variable) Meters/Min
Fast Speed-Down (Variable) Meters/Min
-HYDRAULIC CLAMP
Double Clamp in Inches
-CRAWLER BASE
Undercarriage
Travelling Speed in Km/h
Ground Pressure as N/cm², Kg/cm²
Ground Clearance in Millimeters
3 Web Track Shoes in Millimeter
Traction Force in Kn
Crawler Unit Length in Millimeters
Max Climbing Angle in Degrees°
-WINCH
Spool Capacity
Line Pull in Ton
-HYDRAULIC SYSTEM
System Type
Hydraulic Oil Tank Capacity
Filtration in Micron
Pump Model
Cooling System
Operating Pressure in Bar
Job Site Operating Conditions
Flow Rate 1st Circuit L/Min
Flow Rate 2nd Circuit L/Min
Flow Rate 3rd Circuit L/Min
Flow Rate 4th Circuit L/Min
-DRILL PIPE & CASING
Max Length in Meters
-WIRE LINE
-DRILLING PERFORMANCE
Tricon Drilling
DTH Drilling
Details
20
3.2
4.4
20.2
28
HYUNDAI D6CC
6
530
820
Watercooling
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Spur Gear -5.62 to 1
Two Motor (Std)
1st 0~120/ 2nd 0~60
1st 1500/ 2nd 3000 (kg-m)
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13300
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350 (Using Winch)
Self Weight
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15
Solar200LC
2.5
-, 0.65
600
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(M/mm) 150 of 28 of Cable
350
5 Pump Open Loop
350
10
H3V250 x2 + H3V112 x2 + 10 (HP Constant)
Air Cooling
280
-30°~ +45°
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12
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~5000
~5000

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Additonal D&B 350W Information

Hanjin D&B drilling rigs offer a range of additional options, including carriers, drill rods, and water hammers, to suit diverse project needs. To ensure the best recommendations for your specific project, it is essential to consult with an ECDS agent. Providing detailed project information will enable them to assess your requirements and recommend the most effective add-ons for optimal performance.

The mast (derrick) is fully extended, supporting the drill string.
The mast (derrick) is fully extended, supporting the drill string.

The D&B-350W’s heavy-duty mast is fully extended, providing rigid structural support for the drill string as it penetrates deep formations. Engineered for stability and efficiency, the mast ensures precise alignment and smooth operation during high-depth drilling.

A stack of drill pipes is neatly arranged at the drilling site.
A stack of drill pipes is neatly arranged at the drilling site.

A carefully organized stack of drill pipes awaits deployment, ensuring seamless and efficient drilling operations. Each pipe is designed for high-strength performance, allowing the rig to reach extreme depths while maintaining structural integrity and safety.

Special Hanjin Design Rotary Head
Hanjin D&B 350W Geothermal Drilling Rig Rotary Head Pulley System.

The rotary head pulley system is a key component of the D&B-350W, delivering high torque and precision rotation for deep drilling applications. This system ensures smooth pipe handling, consistent penetration rates, and optimized performance in demanding geological conditions.

This image shows water being injected at the drill bit.
Image shows water being injected at the drill bit.

A high-pressure water injection system is actively cooling and lubricating the drill bit, reducing friction and heat buildup during drilling. This process enhances penetration efficiency, extends bit life, and minimizes drilling resistance, especially in hard rock formations.

The D&B-350W represents the pinnacle of deep drilling technology, combining exceptional power, depth capability, and automated pipe handling for high-efficiency geothermal and water well projects. Built for rugged durability and intelligent automation, it excels in challenging geological conditions, especially when paired with Hanjin D&B’s water hammer system. This advanced rig delivers faster drilling, reduced operating costs, and superior performance compared to conventional methods. For a state-of-the-art solution to extreme-depth drilling, contact ECDS today to see how the D&B-350W can optimize your next project.

Chris Daws

Chris Daws

Chief Operating Officer (COO)
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