Automatic Self-Drilling Jet Grouting Drilling Rig

QXP-20A jet grouting drilling rig is a high-performance, fully hydraulic ground improvement equipment. With exceptional stratum adaptability and flexible process configuration, it delivers outstanding performance in various complex construction environments. Utilizing advanced high-pressure jet grouting technology, it forms high-quality soil-cement reinforcements underground, providing reliable solutions for modern foundation engineering. The equipment has achieved remarkable results in multiple key infrastructure projects.
Applications
1. Wide-Ranging Uses - Ideal for ground improvement and waterproof curtains in construction projects, including basements of existing buildings, tunnels, and low-clearance sites (operational height under 3 meters).
2. Ideal for Key Sectors - Excels in slope stabilization and seepage prevention for reservoirs and dams.
3. Proven Technical Capability - Effectively handles diverse ground conditions such as silt, clay, sand and gravel, with a maximum treatment depth exceeding 80 meters to meet most ground engineering requirements.
Features
1. Power & Performance - Dual-motor rotation system delivers 4000 N·m torque and 40 kN pull-out force, ensuring stable operation in complex ground conditions.
2. Modular Versatility - Innovative modular design enables quick switching between single, double and triple-fluid jet grouting, while supporting oscillating and fixed spraying for multi-purpose applications.
3. Precision Control - Advanced hydraulic system provides stepless adjustment of lifting and rotation speeds, allowing precise control over construction parameters.
4. Adaptive Tooling - Comprehensive professional drilling tools allow optimized configurations for varying geological and project requirements.
Advantages
1. High Efficiency - Benefiting from a powerful drive system and intelligent controls, it significantly outperforms conventional equipment in operational efficiency.
2. Consistent Quality - Precision parameter control and specialized tooling ensure uniform, high-strength soil-cement elements with reliable results.
3. Cost Effectiveness - Modular design enables multi-process capability with a single rig, reducing both initial investment and maintenance costs.
| Technology |
Drilling rig model |
QXP-20A |
| Jet grouting |
Pile diameter(mm) |
Single400-600/Double600-1200/Triple800-1600 |
| Borehole depth(m) |
30-50 |
| Anchoring |
Borehole diameter(mm) |
φ90-φ185 |
| Borehole depth(m) |
50-80 |
| Jet grouting&anchoring |
Drilling angle(°) |
0-90 |
| Output torque(n.M) |
4000 |
| Output speed(r/min) |
Level 0-20 infinitly variable speed/25/35/50/70 |
| Power head lifting force(kN) |
40 |
| Power head down pressure(kN) |
24 |
| Lifting speed(m/min) |
0-2adjustable/9/11 |
| Feeding speed(m/min) |
0-3adjustable/16/19 |
| Motor power(kw) |
22+15 |
| Transport dimension(mm) |
3150*1510*1425 |
| Vertical dimension(mm) |
3040*1510*3210 |
| Machine weight(kg) |
1800 |
| Installation type |
Bulk/integral |
| Can be equipped with single/double/triple swing jet and directional jet modules. |
| Note: Product specifications are subject to change without notice, please understand us. |








Q: Are you the original manufacturer?
A: Yes, Dunyu has been manufacturing jet grouting, multi-functional, and anchoring drilling rig machinery in China for more than 10 years.
Q: What are your terms of payment?
A: T/T 30% as a deposit in advance, and 70% before shipment. We'll show you the photos of the products and packages before you pay the balance.
Q: How is your delivery time?
A: Normally, it will take about 30-40 days for the machine order.
Q: How to inspect the goods?
A: 1) Support customers to come to the factory for on-site inspection.
2) Support customers in designating third-party companies to inspect goods.
3) Support video inspection.
Q: How about your after-sales service?
A: Our dedicated after-sales team is available 24/7 to provide complimentary support, tailored to your needs, with both online and offline service options.
Q: Can I have a visit to your factory before the order?
A: Sure, welcome, kindly contact us for address details and schedule.
For more information, please don't hesitate to contact me at your convenience.