HF-200 Reverse Circulation Rig

Drill Diameter: 450-2000mm
Drill Depth: 220m
Rated Power: 50Kw
It is suitable for complex foundation engineering construction, such as soil layer, cemented gravel and rock socketed, and it is widely applied to bridge bored pile and underground diaphragm wall foundation engineering.
The impact frequency of reverse circulation rig is 40 times/min, the main and the auxiliary hoisting capacity is 30kN, the motor power is 45kW, not include 6BS pump. The weight of the shot bit is 4T, and it equipped with overall cast-iron,has impact resistance, stronger impact force, high drilling efficiency, used for drilling hole diameter 800-1500mm.
The main and the auxiliary hoisting capacity of reverse circulation rig is 50kN, maximum drilling hole diameter is 2.0m and drilling hole depth is 80m,lifting stroke of hoist is 1.5-3.0m,main power is 75kW.
The reverse circulation pump unit is 3PNL and 6BS pump, can be equipped with hydraulic step displacement. In addition to the impact of the drill tip wear-resistant materials, the remaining 50mm welded steel plate, can also be equipped with a variety of specifications drill. 

Model		HF-200
Drill hole depth (m)		≤220
The hole diameter (mm)		450-2000
Spindle speed (r/min)		9
Spindle power (kw)		11
The spindle torque(N•m)		12000
Hoist lifting force (kg)		3000×6
Mud pump	Traffic (m³/h)	300
	Power (kw)	22
Generating set	The rated voltage (V)	380
	Rated current (A)	90
	Rated speed (r/min)	1500
	Rated power (kw)	50
Main power supporting power		4105-6105 Diesel
Overall dimensions (L x W x H) (mm)		9200×2500×3500
Single weight (kg)		12500

The HF-200 Reverse Circulation Rig is a professional large-diameter drilling machine designed for water well drilling, geological exploration, foundation engineering, bridge pile construction, and underground engineering projects. With advanced reverse circulation drilling technology, strong torque output, and durable structural design, the HF-200 provides an efficient solution for contractors and engineering companies requiring reliable drilling performance.

The HF-200 Reverse Circulation Rig is widely used in complex foundation engineering projects, including soil layers, cemented gravel formations, and rock socketed drilling applications. It is especially suitable for bridge bored piles, underground diaphragm wall foundation engineering, large water wells, and geological investigation projects.

Designed for heavy-duty drilling operations, the HF-200 features a maximum drilling depth of approximately 220 meters and a drilling diameter range of 450-2000mm, making it suitable for large borehole construction and deep drilling applications. The machine combines powerful drilling capability, efficient mud circulation, and reliable operation to improve productivity and reduce project costs.

Advanced Reverse Circulation Drilling Technology

The HF-200 Reverse Circulation Rig adopts advanced reverse circulation drilling technology, which improves drilling efficiency and borehole stability.

During operation, drilling fluid enters the borehole and carries rock cuttings upward through the drill pipe. This efficient circulation method helps remove debris quickly, maintain a clean drilling environment, and improve drilling speed.

The reverse circulation system provides many advantages:

Faster removal of drilling cuttings
Better borehole cleaning performance
Reduced drilling resistance
Improved drilling stability
Extended drilling tool service life

This technology is especially effective for large diameter drilling projects where high efficiency and accuracy are required.

Powerful Drilling Performance

The HF-200 Reverse Circulation Rig is equipped with a reliable drilling system that provides strong torque and stable operation.

The machine features:

Maximum spindle torque of approximately 12000N·m
Stable rotary drilling performance
Strong lifting capability
Efficient mud circulation system
Continuous drilling operation

The optimized mechanical structure ensures smooth power transmission and allows the rig to maintain stable performance during long working periods.

The HF-200 is suitable for contractors who need dependable drilling equipment for demanding construction and water well projects.

Large Diameter Drilling Capability

A major advantage of the HF-200 Reverse Circulation Rig is its large diameter drilling capability.

The machine supports drilling diameters from approximately 450mm to 2000mm, making it suitable for:

Large diameter water wells
Bridge foundation piles
Underground engineering holes
Geological investigation holes
Industrial water supply projects

The wide drilling diameter range provides flexibility for different project requirements and allows operators to select suitable drilling tools according to geological conditions.

Wide Application Areas

The HF-200 Reverse Circulation Rig is widely used in multiple industries.

Water Well Drilling

The HF-200 provides an efficient solution for groundwater development, industrial water supply, and agricultural irrigation wells.

Foundation Engineering

The rig is suitable for:

Bridge bored pile construction
Underground diaphragm walls
Large foundation drilling projects

Its strong drilling ability allows stable operation in complex foundation conditions.

Geological Exploration

The HF-200 helps engineers investigate underground geological conditions and collect valuable drilling information.

Mining and Resource Development

The machine can also support exploration drilling and resource development projects requiring large boreholes.

Excellent Geological Adaptability

The HF-200 Reverse Circulation Rig is designed to handle different geological formations.

It can work effectively in:

Clay layers
Sand formations
Gravel layers
Cemented gravel
Soft rock formations
Mixed geological conditions

The reverse circulation system improves drilling efficiency by quickly removing cuttings and maintaining stable borehole conditions.

With suitable drilling tools, the HF-200 can adapt to different project environments and geological challenges.

Durable Structure and Reliable Operation

The HF-200 Reverse Circulation Rig features a heavy-duty structure designed for long-term operation in demanding environments.

The machine uses strong steel construction and reliable components to improve durability and reduce maintenance requirements.

Key advantages include:

Strong machine frame
High impact resistance
Reliable power system
Long service life
Reduced downtime

The robust structure ensures stable performance during continuous drilling operations.

Efficient Mud Circulation System

The HF-200 is equipped with an efficient mud circulation system to support reverse circulation drilling.

The circulation system helps:

Remove drilling debris efficiently
Improve borehole quality
Reduce drilling interruptions
Increase drilling productivity

The optimized mud circulation process allows smoother drilling operations, especially in deep and large diameter boreholes.

Easy Operation and Maintenance

The HF-200 Reverse Circulation Rig is designed with operator convenience in mind.

The practical control system allows operators to easily manage drilling processes, while the machine structure simplifies routine maintenance.

Maintenance advantages include:

Easy inspection access
Simple maintenance procedures
Reduced service time
Lower operating costs

The user-friendly design makes the HF-200 suitable for professional drilling contractors and engineering companies.

Main Features of HF-200 Reverse Circulation Rig
Reverse circulation drilling technology
Maximum drilling depth up to 220m
450-2000mm drilling diameter range
Large borehole drilling capability
Strong spindle torque output
Efficient mud circulation system
Suitable for foundation engineering
Suitable for water well drilling
Durable heavy-duty construction
Reliable drilling performance

Why Choose Our HF-200 Reverse Circulation Rig?
1. High Drilling Efficiency

Advanced reverse circulation technology improves drilling speed and reduces drilling downtime.

2. Large Diameter Capability

The HF-200 supports large borehole construction for water wells and engineering applications.

3. Strong Performance

High torque output and reliable components ensure stable drilling operations.

4. Wide Application Range

Suitable for groundwater projects, foundation engineering, exploration, and construction.

5. Durable and Cost Effective

The robust structure provides long service life and reduces maintenance expenses.

6. Professional Technical Support

We provide complete drilling solutions, equipment guidance, spare parts support, and customized services.

FAQS
1. What is the HF-200 Reverse Circulation Rig used for?

The HF-200 is mainly used for large diameter water wells, geological exploration, bridge piles, foundation engineering, and underground construction projects.

2. How deep can the HF-200 drill?

The HF-200 can achieve drilling depths of up to approximately 220 meters depending on geological conditions and drilling methods.

3. What drilling diameter can the HF-200 achieve?

The HF-200 supports drilling diameters from approximately 450mm to 2000mm.

4. What are the advantages of reverse circulation drilling?

Reverse circulation drilling provides efficient cuttings removal, improved borehole cleaning, higher drilling efficiency, and better stability.

5. Can the HF-200 drill gravel and rock formations?

Yes. The HF-200 is suitable for soil layers, cemented gravel, and rock socketed conditions with appropriate drilling tools.

6. Is the HF-200 suitable for bridge foundation projects?

Yes. The HF-200 is widely used for bridge bored piles and underground diaphragm wall foundation engineering.

7. Is the HF-200 easy to operate?

Yes. The machine features a practical structure designed for convenient operation and maintenance.

8. Can the HF-200 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 Machine, Engineering Drilling Equipment, Foundation Drilling Machine, Industrial Water Well Drill, Mining Exploration Drill, Construction Drilling Equipment, Reverse Circulation Drilling Rig, Water Well Drilling Machine, Deep Well Drilling Equipment, Diesel Drilling Machine, Professional Drilling Rig, Geological Exploration Rig, Reverse Circulation Drilling Machine, Large Diameter Drilling Rig, Bridge Pile Drilling Rig, Groundwater Drilling Equipment, Heavy Duty Drilling Rig, Large Borehole Drilling Machine, Rotary Drilling Equipment,
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