Geotechnical Drill Rig Manufacturer | High-Performance Drilling Equipment for Soil & Rock Testing

About Changsha Changtan

A leading Chinese manufacturer with over 60 years of experience in geological equipment innovation and production.

Established Excellence in Drilling Technology

Changsha Changtan Geological Equipment Co., Ltd. (Abbr. Changtan), founded in 1958, is a large state-owned enterprise under the Hunan Bureau of Geology and Mineral Exploration and Development. As a proud member of China Geo-Equipment Corporation, we have been at the forefront of geotechnical and drilling equipment manufacturing for over six decades.

Our mission is to deliver reliable, high-performance drilling solutions for soil testing, water well development, mineral exploration, and infrastructure projects across the globe. With advanced R&D, strict quality control, and a commitment to innovation, we serve clients in over 80 countries.

60+ Years of Industry Leadership
ISO-Certified Quality Control
Exported to Africa, Asia, Latin America & Europe
Full Range of Geotechnical & Exploration Rigs

Our Product Range

Engineered for precision, durability, and performance in the most demanding environments.

Multi-Function Hydraulic Drilling Rig

Crawler-mounted diamond core drilling rig for exploration and geotechnical applications.

Depth: Up to 1500m
Type: Hydraulic, Crawler
Application: Core Drilling, SPT

Portable Water Drilling Rig

Trailer-mounted rig ideal for water well drilling and soil testing in remote areas.

Depth: 150m
Type: Portable, Trailer-Mounted
Features: Integrated Mud Pump

300m Crawler Drilling Rig

Robust DTH and mud pump system for exploration and water well drilling.

Depth: 300m
Type: Crawler, DTH
Application: Exploration, Water Wells

HQ/PQ Wireline Core Barrel

API-standard wireline drilling core barrel for mineral exploration.

Standards: API
Types: HQ, PQ, NQ
Use: Wireline Coring

Impregnated Diamond Core Bits

High-efficiency bits for hard rock drilling and core recovery.

Sizes: AQ, BQ, NQ, HQ, PQ
Type: Surface Set, Impregnated
Material: Industrial Diamond

T2 Double Barrel SPT Rig

GY-150T model with dual functionality for soil testing and core drilling.

Model: GY-150T
Function: SPT & Core Drilling
Mount: Trailer, 2-Wheel

Engineering Drilling Rig GY-150T

High-torque portable rig for borehole and water well drilling.

Depth: 180m
Type: Mud Rotary
Portability: Trailer-Mounted

1500m Hydraulic Core Drilling Rig

Crawler-mounted rig with variable displacement motor for deep core drilling.

Depth: 1500m
Drive: Hydraulic Top Head
Use: Mineral Exploration

View Full Product Catalog

Why Choose Our Drilling Rigs?

Built for Durability

Engineered with heavy-duty components and corrosion-resistant materials for long service life in harsh environments.

High Performance

Optimized hydraulic systems and advanced drilling mechanisms ensure maximum efficiency and penetration rates.

Global Support

Backed by a responsive sales and technical support team available in multiple languages.

Frequently Asked Questions

What types of geotechnical drill rigs do you offer?

We manufacture a full range including crawler-mounted, hydraulic, portable, and trailer-mounted rigs for soil testing, water well drilling, and mineral exploration.

What is the maximum drilling depth of your rigs?

Our rigs range from 100m shallow sampling units to deep core drilling systems capable of reaching up to 2600m, depending on the model and application.

Do you provide drilling accessories and tools?

Yes, we supply a complete line of core bits, drill rods (BQ, NQ, HQ, PQ), wireline barrels, mud pumps, and shank adapters.

Are your products certified?

All our equipment is manufactured under strict quality control standards, and we comply with international drilling equipment specifications including API.

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