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Unlock the Full Potential of Your Drilling Rig

2025.6.20 Company News YONDA


When Proven Italian Engineering Meets YONDA Innovation

In the field of foundation engineering, the SOILMEC SM09 and SM21 drilling rigs are globally recognized for their reliability and versatility. The SM09, with its compact design and agile maneuverability, is ideal for confined sites and complex geological conditions, delivering consistent performance in small-diameter piling jobs. Meanwhile, the SM21 offers higher torque and power, making it a trusted choice for medium to large-scale projects such as bridges and high-rise buildings.

The Challenge: Evolving Demands, Outdated Power

As construction standards continue to rise and jobsite requirements become more demanding, the original power heads on these rigs often struggle—particularly when tasked with 1.6-meter diameter deep mixing piles. Issues such as insufficient torque and reduced efficiency can hinder both schedule and quality.

The Solution: YONDA 804 High-Torque Power Head Retrofit Kit

With over 20 years of experience in engineering machinery, YONDA presents the 804 Retrofit Kit, specifically designed to upgrade SM09 and SM21 rigs for next-level performance.

Key Benefits:

🔧 Conquer 1.6m Large-Diameter Piles
Equipped with four hydraulic motors in parallel, the 804 delivers up to 63 kNm of torque, ensuring powerful penetration through dense clay, gravel, and other complex strata.

⚙️ Four-Speed Transmission System
Easily switch between 18–72 rpm and 15–63 kNm torque outputs, optimizing productivity across various soil conditions.

🔩 Seamless Integration, Minimal Downtime
Engineered for perfect compatibility with the original SOILMEC structure. The retrofit requires no major structural modifications, enabling fast installation and commissioning—significantly reducing retrofit time and costs while maximizing ROI.

Reimagine Performance, Maximize Investment

For contractors seeking high-performance equipment for deep mixing piles, the combination of SOILMEC SM09/SM21 rigs with the YONDA 804 Power Head offers an ideal solution. This upgrade not only revitalizes existing machines but also enhances your competitive edge in large-scale foundation and ground improvement projects.

Ready to upgrade?
Contact us to learn more about the retrofit solution or to discuss partnership opportunities.