The hydraulic internal cutter is an internal cutting tool that uses hydraulic horsepower to drive the cutter for in – pipe cutting. This cutter has a reasonable structure, is convenient for maintenance, and has a faster cutting speed. When cutting multiple – layer non – concentric casings, it can withstand severe vibrations. The thick cutter arms can expand outward to 5 times the diameter of the body, thus achieving maximum stability under various adverse cutting conditions (including hard spots, eccentricity, discontinuous cutting, etc.). For example, the body diameter of the 13 – 3/8′ hydraulic cutter is only 11 – 3/4′, while the maximum cutting range of the pipe diameter reaches 60.
Technical parameters：
| Model | Body Outer Diameter (mm(inch)) | Joint Thread | Cutting Casing Outer Diameter | |
| Minimum (in) | Maximum (in) | |||
| GD111 | 111 | 2 7/8REG | 5 1/2 | 9 5/8 |
| GD146 | 146 | 3 1/2REG | 7 | 16 |
| GD203 | 203 | NC50 | 9 5/8 | 30 |
| GD238 | 238 | 6 5/8REG | 10 3/4 | 36 |
| GD298 | 298 | 6 5/8REG | 13 3/8 | 60 |
Product Features
- Hydraulic Drive, Powerful Performance
The hydraulic system drives the cutter, providing high output torque and stable power, meeting high-intensity cutting requirements and suitable for thick-walled pipe operations.
- Internal Cutting Structure Design
The tool cuts from inside the pipe, unrestricted by external space, making it particularly suitable for confined spaces or situations where external cutting is not possible.
- High Cutting Efficiency and Precision
Optimized cutter structure ensures a smooth cutting process, clean cuts, reduced secondary processing needs, and improved overall work efficiency.
- Expandable Cutter Arm Design
The cutting arm can be extended and adjusted according to the pipe diameter (expandable to approximately 5 times the cutter diameter), adapting to various pipe specifications and improving versatility.
- Strong Adaptability to Complex Working Conditions
It maintains stable operation even under adverse conditions including slight vibration, eccentricity, and discontinuous cutting, ensuring cutting quality.
` High-Strength Cutter Material
The blade is made of wear-resistant, high-strength material, possessing excellent impact resistance and durability, extending its service life. 7. Compact Structure and Easy Maintenance.
The overall design is reasonable, facilitating on-site installation and disassembly, simplifying maintenance, and reducing operating costs.
- Wide Cutting Range Capacity
For example, the 13-3/8 inch hydraulic internal cutter still allows for a large extended range, with a maximum cutting diameter of up to 50 inches, covering a wide range of application needs.
Scope of Application
- Oil and Gas Industry
Suitable for cutting oil well casing and tubing, especially in downhole or confined space environments.
- Pipeline Engineering Construction and Maintenance
Used for internal cutting and dismantling of various transportation pipelines (such as oil, gas, and water pipelines).
- Marine Engineering and Platform Operations
Enables internal pipeline cutting in offshore platforms or underwater operations, reducing the difficulty of external operations.
- Chemical and Energy Industry
Used for the inspection and replacement of pipelines carrying high-pressure, high-temperature, or corrosive media.
- Emergency Repair and Dismantling Projects
Enables rapid pipeline cutting in complex environments or emergency situations, improving operational efficiency.
- Mining and Heavy Industry Sector
Suitable for cutting the internal structures of large pipelines or equipment.
Product Advantages
High Efficiency and Reliability: Hydraulic drive ensures continuous and stable output.
Wide Adaptability: Covers various pipe diameters and complex working conditions.
Flexible Operation: Internal cutting method overcomes space limitations.
Economical and Durable: Long tool life and low maintenance costs.
