About EANDA
Excellence and Advance
Hunan EANDA Engineering Equipment Co., Ltd. is headquartered in Changsha — China's engineering machinery capital. We specialize in the R&D, manufacturing, and technical support of modular lightweight drilling rigs.
Our products cover drilling depths up to 1,500 meters across all bore sizes, enabling vertical, angled, and full 360° drilling. With superior technology and reliable performance, we help operators improve efficiency and reduce labor intensity.
Our Journey
Key Milestones
Industry Entry
Entered the geological core drilling rig industry.
Company Founded
Hunan EANDA Engineering Equipment Co., Ltd. officially established in Changsha.
High-Tech Enterprise
Certified as a National High-Tech Enterprise by the Chinese government.
Safety Certification
Obtained the "Mining Equipment Safety" certification.
500+ Deployments
Over 500 rigs deployed in field operations across diverse environments.
Innovation
5 Utility-Model Patents
Our patented technologies address the most critical challenges in modular drilling: clamping reliability, feed stability, and operational safety.
Multi-Point Drill Rod Clamp
Three-point nitrogen spring normally closed clamp — larger clamping area, better rod protection, remains clamped even after engine shutdown.
Sliding Frame Assembly
Adjustable sliding frame with wear-resistant nylon plates — ensures smooth travel without jamming or excessive wear.
Anti-Tangling Fixed Pulley
Arc-shaped baffle design prevents wire rope from tangling in the pulley gap, improving efficiency and operational safety.
Dual-Seal Water Sleeve
Symmetrical dual-sealing mechanism prevents mud leakage, ensures proper drill bit cooling and lubrication.
Through-Hole Power Head Chuck
Multi-point locking chuck for through-hole power head — enables 3-meter drill rods, significantly improving drilling efficiency.
Application Fields
Where Our Rigs Work
Mineral Exploration
Surface and underground mineral resource surveying — gold, copper, nickel, iron, and more.
Hydropower Engineering
Geological investigation for dams, reservoirs, and hydroelectric infrastructure projects.
Geological Hazard Survey
Landslide risk assessment, fault zone investigation, and ground stability analysis.
Tunnel Engineering
Pre-construction geological survey for tunnels, subways, and underground infrastructure.
Mine Curtain Grouting
Precision drilling for curtain grouting in mine water control and ground treatment.
Environmental Monitoring
Groundwater sampling, soil contamination investigation, and geothermal exploration.
Trusted By
Our Partners & Clients
EANDA equipment is trusted by leading geological survey institutions, mining enterprises, and academic partners.