HF-400L Reverse Circulation Rig

Drill Diameter: 350-1200mm
Drill Depth: 350m
Generator power: 150Kw1. The rig adopts engineering crawler, hydraulic walking chassis, easy to move, more suitable for plain, plateau, hilly and other land forms. The chassis has four legs, and the drilling machine has small vibration and good stability during drilling.
2. Reverse circulation drilling rig is multi-functional, all key components are cost-effective products, and the system is equipped with pressure protection and alarm device.
3. the reverse circulation drilling rig has the actuators, the instrument is on the operation table, the operation is convenient and reliable.
4. The reverse circulation drilling rig adopts a unique drill frame, which has large drilling process, large anti-torsion capability, simple structure, convenient maintenance, easy relocation, convenient operation of the orifice, and construction of large top angle drilling.

Model		HF400L
Drilling depth (m)		≤350
Drilling diameter (mm)		350-1200
Spindle speed (r/min)		5-22
Spindle power (kw)		11×2
Spindle torque (N•m)		36000
Hoisting ability (single strength)		8000kg×6
Mud pump	Flow (m³/h)	680
	Power (kw)	55
Generator set	Rated voltage	380V
	Rated current	110A
	Rated speed	1500r/min
	Rated power	150kw
Main machine power		6105 diesel engine
Overall contour (L*W*H) (mm)		9200×2500×3500
Single weight (kg)		26000

HF-400L Reverse Circulation Rig

The HF-400L Reverse Circulation Rig is a professional high-performance drilling machine designed for deep water well drilling, geological exploration, engineering construction, and large-diameter drilling applications. With advanced reverse circulation technology, powerful drilling capability, and reliable structural design, the HF-400L provides an efficient and economical solution for modern drilling projects.

Reverse circulation drilling technology is widely recognized for its excellent drilling efficiency, especially in large diameter and deep hole applications. During operation, drilling fluid flows through the annular space and returns through the drill pipe together with rock cuttings, allowing faster removal of debris and improving drilling stability.

The HF-400L Reverse Circulation Rig is widely used in groundwater development, industrial water wells, agricultural irrigation wells, mining exploration, foundation engineering, bridge construction, and infrastructure projects. Its strong adaptability allows it to work efficiently in different geological formations, including sand, gravel, clay, and soft rock.

Designed for professional drilling contractors, the HF-400L combines powerful performance, convenient operation, and durable construction. It helps users improve drilling efficiency, reduce operating costs, and complete projects faster.

Advanced Reverse Circulation Drilling Technology

The HF-400L Reverse Circulation Rig adopts advanced reverse circulation drilling technology to improve drilling speed and borehole quality.

During drilling operations, the drilling fluid carries rock cuttings through the drill pipe and transports them efficiently to the surface. This process provides several advantages:

Faster removal of drilling debris
Improved borehole cleaning
Reduced drilling resistance
Better drilling stability
Extended service life of drilling tools

Compared with traditional drilling methods, reverse circulation technology provides higher efficiency, especially for large diameter wells and complex geological conditions.

The HF-400L ensures smooth drilling operations by maintaining stable circulation and effective cutting removal throughout the drilling process.

Powerful Drilling Performance

The HF-400L Reverse Circulation Rig is equipped with a strong power system and reliable drilling structure to achieve excellent drilling performance.

The machine provides:

High drilling torque
Stable rotation speed
Strong penetration ability
Continuous working capability
Accurate drilling control

Its optimized design allows efficient drilling in different ground conditions while maintaining excellent operational stability.

The HF-400L is suitable for projects requiring deep drilling, large boreholes, and reliable long-term operation.

Wide Application Areas

The HF-400L Reverse Circulation Rig is widely used in various industries, including:

Deep water well drilling
Geological exploration
Mining exploration
Industrial water supply projects
Agricultural irrigation wells
Foundation drilling
Bridge construction
Infrastructure engineering
Groundwater development

For groundwater projects, the HF-400L provides an effective solution for accessing underground water resources.

For geological exploration, it offers reliable drilling performance for collecting geological information and analyzing underground conditions.

For construction and infrastructure projects, the rig provides stable drilling capability for foundation and engineering applications.

Excellent Adaptability to Different Geological Conditions

The HF-400L Reverse Circulation Rig is designed to handle various geological environments.

It can effectively operate in:

Sand layers
Gravel formations
Clay formations
Soft rock
Weathered rock
Mixed geological conditions

The reverse circulation system improves drilling efficiency by quickly removing cuttings from the borehole, reducing the impact of difficult formations.

Operators can select appropriate drilling tools and parameters according to specific site conditions, ensuring better performance and higher productivity.

Large Diameter and Deep Drilling Capability

One of the major advantages of the HF-400L Reverse Circulation Rig is its ability to perform large diameter drilling operations.

It is suitable for projects requiring:

Large diameter water wells
Deep groundwater wells
Geological investigation holes
Engineering boreholes
Resource exploration drilling

The powerful drilling system enables the machine to maintain stable performance during long drilling operations.

This makes the HF-400L an excellent choice for contractors who require reliable equipment for demanding drilling projects.

Durable Structure and Reliable Operation

The HF-400L Reverse Circulation Rig is manufactured with high-quality materials and advanced production technology to ensure long-term reliability.

The heavy-duty frame structure provides excellent stability during drilling. High-performance hydraulic and mechanical components improve equipment durability and reduce maintenance requirements.

The machine is designed for continuous operation in challenging outdoor environments.

Advantages include:

Strong structural stability
Reliable components
Long service life
Easy maintenance
Reduced downtime

With proper maintenance, the HF-400L can provide dependable drilling performance for many years.

Convenient Operation and Maintenance

The HF-400L Reverse Circulation Rig features a practical design that simplifies operation and maintenance.

The user-friendly control system allows operators to easily manage drilling parameters and improve working efficiency.

Maintenance advantages include:

Easy access to key components
Simple inspection procedures
Reduced maintenance time
Lower operating costs

The practical design helps drilling companies maximize productivity and minimize project delays.

Main Features of HF-400L Reverse Circulation Rig
Advanced reverse circulation drilling technology
High drilling efficiency
Strong torque and penetration capability
Suitable for deep water wells
Large diameter drilling performance
Stable drilling operation
Wide geological adaptability
Durable heavy-duty structure
Easy operation and maintenance
Professional drilling solution
Why Choose Our HF-400L Reverse Circulation Rig?
1. High-Efficiency Reverse Circulation System

The advanced circulation technology improves drilling speed, borehole cleaning, and overall productivity.

2. Powerful Drilling Capability

Strong torque output allows efficient operation in complex geological conditions.

3. Wide Application Range

Suitable for water wells, exploration, mining, construction, and infrastructure projects.

4. Reliable and Durable Design

High-quality components ensure stable operation and long equipment lifespan.

5. Lower Operating Costs

Efficient drilling performance helps reduce labor requirements and project expenses.

6. Professional Technical Support

We provide complete drilling solutions, customized configurations, and technical assistance.

FAQS
1. What is the HF-400L Reverse Circulation Rig used for?

The HF-400L Reverse Circulation Rig is mainly used for deep water wells, geological exploration, mining drilling, industrial wells, and engineering borehole projects.

2. What is reverse circulation drilling technology?

Reverse circulation drilling uses drilling fluid and air pressure to transport rock cuttings upward through the drill pipe, improving drilling efficiency and borehole cleaning.

3. What advantages does the HF-400L provide?

The HF-400L offers high drilling efficiency, strong power, stable operation, large diameter capability, and excellent adaptability.

4. Can the HF-400L drill hard geological formations?

Yes. The machine can work in sand, gravel, clay, soft rock, weathered rock, and mixed formations with suitable drilling tools.

5. Is the HF-400L suitable for water well drilling?

Yes. It is widely used for groundwater development, industrial water wells, and agricultural irrigation projects.

6. How does reverse circulation improve drilling efficiency?

It removes drilling cuttings more effectively, keeps the borehole clean, reduces resistance, and improves drilling speed.

7. Is the HF-400L easy to operate?

Yes. The machine is designed with practical controls and convenient operation procedures.

8. Can the HF-400L Reverse Circulation Rig be customized?

Yes. Different drilling configurations and solutions can be customized according to customer requirements and geological conditions.

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TAG: Hydraulic Drilling Equipment, Crawler Drilling Rig, Water Well Drilling Equipment, Professional Drilling Machine, Construction Drilling Equipment, Deep Hole Drilling Machine, Reverse Circulation Drilling Machine, Soil Drilling Machine, Foundation Drilling Rig, Geological Drilling Rig, Portable Drilling Rig, Agricultural Irrigation Drilling Rig, Large Diameter Drilling Machine, Groundwater Drilling Machine, Diesel Drilling Rig, Positive Circulation Drilling Rig, Engineering Pile Drilling Machine, Pebble Layer Drilling Rig, Mobile Water Well Drilling Rig,
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