Global-grade geotechnical solutions configured for optimal core recovery and high-torque exploration.
In geotechnical engineering and mineral exploration, recovering clean, undisturbed core samples is the most critical metric of success. Standard single and double tube core barrels often fail when encountering highly fractured, weathered, or clay-rich formations. The mechanical action of the drilling process, coupled with the high pressure of flush water, can wash away soft materials or grind fragile structures to dust.
This is where Triple Tube Core Barrels (e.g., HQ3, NQ3, PQ3 systems) provide a revolutionary solution. A triple tube system utilizes three concentric tubes:
By preventing drilling fluid from making direct contact with the core and reducing mechanical friction to a minimum, triple tube core barrels yield close to 100% core recovery rates even in challenging geological formations such as friable coal seams, mudstone, and fault gouge zones.
China has evolved into the global epicenter for geological exploration equipment manufacturing. SINOVO Heavy Industry and partner factories leverage high-grade metallurgy, state-of-the-art CNC machining, and localized industrial clustering to supply ODM Triple Tube Core Barrels that outperform traditional Western OEMs in both price and custom engineering flexibility.
We utilize premium 40CrNiMo alloy steel and advanced heat treatment technologies to ensure that both thread connections and tube bodies can withstand maximum torsional force without deformities.
We tailor core barrels to your project specifications—whether that means custom lengths (1.5m or 3.0m), specialized core lifter clearances, or customized matrix formulations for core bits.
By locating our production base in Xianghe Industrial Park (close to Beijing and Tianjin port), we reduce raw material transport costs and optimize logistics, passing the savings directly to buyers.
Estimated trade pricing brackets for ODM triple tube core barrels. Final pricing depends on material grades, order volumes, and custom modifications.
| Model / Size | Core Diameter (mm) | Hole Diameter (mm) | Standard Length (m) | Estimated Price (USD) | Application Profile |
|---|---|---|---|---|---|
| NQ3 | 45.0 mm | 75.7 mm | 1.5m / 3.0m | $450 - $780 | Standard exploration, shallow geological surveys |
| HQ3 | 61.1 mm | 96.0 mm | 1.5m / 3.0m | $650 - $1,100 | Medium formations, civil engineering site investigations |
| PQ3 | 83.0 mm | 122.6 mm | 1.5m / 3.0m | $950 - $1,550 | Large diameter geotechnical engineering, highly fractured rock |
| Custom ODM / OEM | Customized | Customized | 1.0m - 6.0m | Request Quote | Specialized offshore drilling & deep-sea mineral exploration |
*Disclaimer: The above prices are FOB Tianjin. Please contact our sales engineers for a formal quotation reflecting current steel commodity index rates.
SINOVO Heavy Industry designs integrated drilling solutions tailored to dynamic geological contexts globally. The choice of core barrel configuration plays a vital role in structural engineering safety, mining resource model accuracy, and tunnel design. Here are some of our global project implementations:
For projects like the Sinovo rotary drilling rig operations in Singapore and the CQUY crawler cranes in Bangladesh, assessing the load-bearing capacity of sub-surfaces is paramount. Using HQ3 triple tube barrels ensures that the clay-sand transition interfaces are accurately recovered without fluid washout, allowing structural engineers to accurately locate load-bearing bedrock.
In regions such as Lebanon (e.g., our TR200D and TR250D setups), slope stabilization and pipe-shed grouting require precise drilling. When exploring highly fractured limestone, the triple tube system acts as the perfect exploratory tool to map cavities and weak structural planes, preventing catastrophic drill collapses.
Conventional wireline core systems often break up soft coal seams. The split metal inner liner of the triple tube system secures the soft coal sample, preventing expansion and core disintegration. This gives geologists an authentic view of the coal seam's thickness and fracture characteristics, crucial for calculating reserves and gas content.
When coupled with our top-drive anchor rigs or reverse circulation setups (like the SD220L or ZJD2800/280), our ODM core barrels deal easily with sand, gravel, and cobble zones, preventing borehole collapse and ensuring sample purity.
SINOVO Group is a professional supplier of construction machinery equipment and construction solutions. We engage in the field of construction machinery, exploration equipment, import and export agent services, and construction scheme consulting, proudly serving the world's leading engineering suppliers.
As early as the early 1990s, our core engineering members have been serving in the construction machinery sector. After more than 20 years of innovation, we have established strategic cooperation alliances with top global and Chinese manufacturers, earning numerous accolades in international engineering export projects.
Our business scope focuses on pile construction machinery, water well drilling, hoisting, and geological exploration equipment. We have established solid trade relations with over 120 countries and regions globally, building a robust sales and service network across five continents.
Take a look inside our 7,800 square meter manufacturing base equipped with advanced machining tools.
Heavy Assembly Workshop
System Inspection
Machined Spare Parts
In 2010, SINOVO Heavy Industry invested 120 million yuan in our production base within the Hebei Xianghe Emerging Industry Demonstration Zone. Spanning 67 mu, the facility is optimized for the R&D and manufacturing of piling engineering machinery, drilling rigs, and premium geological exploration equipment. Located just 100 kilometers from Tianjin Port, we minimize inland transit costs, allowing us to pass the savings on to our clients through competitive prices.
All products have successfully obtained ISO9001:2015, CE, and GOST certifications. SINOVO is a highly respected manufacturer in Southeast Asia, the Middle East, and Africa, maintaining localized service hubs in Singapore, Dubai, and Algiers to deliver prompt after-sales support and spare parts.
Discover our core line of high-performance geotechnical and foundation engineering machines.
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Read MoreWe provide comprehensive technical documentation, geological adaptation analyses, and customized design advice to ensure you get the absolute best equipment for your specific drill plan.
We keep our customers updated on production timelines and perform rigorous factory quality checks. Standard orders are ready in 10 to 15 days; specialized customizations may take slightly longer.
We offer a one-year warranty on our drilling rigs. Our service package includes 1-2 weeks of on-site setup, operational training, and free wear-part replacements within the warranty period.
ISO9001 Certification
High-Tech Enterprise
CE Certification
Customs Class A
Answers to technical and commercial questions about triple tube core barrels and international sourcing.
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