Henan Digndian Machinery Co., Ltd. - Your Trusted Water Well Drilling Rig Partner
Specializing in robust, high-performance water well drilling rigs, our machines are engineered for efficiency and durability in diverse geological conditions. With 20+ years of expertise, we deliver rigs that combine advanced hydraulic systems and precision engineering to maximize drilling speed while minimizing operational costs.
Generally Introduction
DD-350WT truck-mounted well drilling machine is an efficient,multi-function full hydraulic water well drilling rig. It is high efficiency because of having a larger torque of the turntable and is mainly used for water well in industry and agriculture, national defense building foundation, geological exploration, geothermic well and other foundation working, it is popular at home and abroad.
DD-350WT truck-mounted deep well drilling rig can drill in all kinds formations by mud drilling in soft formation and air DTH hammer in rock drilling, DTH Hammer is applied in rock drilling, slag is discharged by air pressure and the efficiency is ten times than traditional rotary drilling.
Applicaton
This truck-mounted deep well drilling rig is widely used in industrial and agricultural water conservancy projects, such as drilling wells, testing wells, or other exploration boreholes, in particular, used for geothermal heating well drilling, it can also meet the engineering basis for reinforcement, loose gravel drilling rock formation connected with a variety of engineering requirements.
Product Parameters






Model |
DD220W |
DD260W |
DD360W |
DD460W |
DD560W |
Max. Drilling depth |
220m |
260m |
360m |
460m |
560m |
Drilling diameter |
90-254mm |
90-315mm |
105-325mm |
105-350mm |
105-350mm |
Working air pressure |
1.05-2.46Mpa |
1.7-3.0Mpa |
1.05-3.45Mpa |
1.05-3.45Mpa |
1.05-4.5Mpa |
Air consumption |
16-30m³/min |
17-35m3/min |
16-55m3/min |
16-55m3/min |
16-60m3/min |
Drilling rod length |
3m |
3m |
3m/4.5m/6m |
3m/4.5m/6m |
3m/4.5m/6m |
Drilling rod diameter |
76/89mm |
76/89mm |
89/102mm |
89/102mm |
89/102/114mm |
Axle pressure |
4T |
4T |
4T |
10T |
12T |
Lifting force |
12T |
14T |
20T |
24T |
28T |
Lifting speed |
2.5m/min |
2.5m/min |
3.0m/min |
3.0m/min |
3.0m/min |
Pulling speed |
0.5-5m/min |
0.5-5m/min |
0.5-5m/min |
0.5-5m/min |
0.5-5m/min |
Fast lifting speed |
18m/min |
18m/min |
30m/min |
25m/min |
25m/min |
Fast pulling speed |
35m/min |
35m/min |
50m/min |
40m/min |
40m/min |
Max. rotation torque |
4200-5600Nm |
4500-6500Nm |
6500-8500Nm |
7500-9500Nm |
8500-11000Nm |
Rotation speed |
48-70r/min |
50-70r/min |
60-100r/min |
45-120r/min |
75-150r/min |
Mud pump flow |
20L/min(optional) |
20L/min(optional) |
20L/min(optional) |
20L/min(optional) |
20L/min(optional) |
High hydraulic leg stroke |
1.5m |
1.5m |
1.5m |
1.5m |
1.5m |
Climbing capacity |
30° |
30° |
30° |
30° |
30° |
Weight |
4.7t |
5.4t |
8.5T |
10.5t |
11.5T |
Dimension |
3600*1700*2150mm |
3900*1700*2150mm |
4800*2000*2450mm |
5700*2000*2550mm |
5800*2250*2550mm |
Power |
55 kw |
77 kw |
93KW |
93KW(6 cylinder) |
153kw |
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FAQ

After Sales Service
1. Warranty Coverage
We provide a comprehensive 2-year warranty for all our mechanical equipment. During this period, if any component fails due to manufacturing defects, we will replace it free of charge. Our warranty also includes free labor for repairs related to these defects.
2. Technical Support
Our team of experienced engineers is available 24/7 to offer technical support. Whether it's a question about equipment operation, troubleshooting, or maintenance, you can reach us via email, phone, or our online customer service platform. We aim to respond to all inquiries within 8 hours.
3. Spare Parts Provision
To ensure the continuous operation of your equipment, we maintain a large inventory of high - quality spare parts. We can supply the required spare parts within 3 business days upon receiving your order. Additionally, we offer competitive prices for these parts, and they come with a 6-month quality guarantee.
4. On - site Service
For complex issues that cannot be resolved remotely, we provide on - site service. Our service technicians will be dispatched to your location as soon as possible, usually within 15 business days depending on your geographical location. We cover all travel and accommodation expenses for on - site service within the warranty period for issues covered by the warranty.
5. Regular Maintenance and Upgrades
We offer regular maintenance packages for our customers. Our technicians will visit your site at pre - arranged intervals (e.g., quarterly or annually) to perform maintenance checks, clean the equipment, and replace any worn - out parts. We also keep you informed about the latest software and hardware upgrades for your equipment, which can improve its performance and extend its lifespan.