API Oil drilling cement casing inner rig construction Hydraulic Internal Casing Cutter
Hydraulic internal cutter is a tool for cutting pipe strings, mainly used in the field of oil and gas extraction. It hydraulically drives the blade to cut the stuck pipe string and completes the cutting operation . It is mainly composed of an upper joint, a pressure regulator assembly, a piston assembly, a cylinder liner, a spring, a guide tube assembly, a body, a blade assembly, a righting block and a plug.
Hydraulic internal cutter works as follows:
1. Hydraulic drive : under the action of hydraulic pressure, the piston moves down to push the blade to rotate outwardly around the pin axis, and the blade cuts into the wall of the pipe to be cut.
2. Cutting process : with the increase of hydraulic displacement, the cutting depth of the blade will be increased until the cutting is completed.
3. Recovery : After cutting, lift the drill pipe or oil pipe, drive the blade to recover, and take out the cut pipe column.








Serial
Number |
Model |
Joint thread |
O.D/mm |
Blade contraction O.D/mm |
Blade open O.D/mm |
The diameter of the pipe that can be cut/mm |
O.D |
Wall thickness |
1 |
TGX-9 |
NC50 |
210 |
210 |
310 |
244.47 |
8.94 |
2 |
10.03 |
3 |
10.05 |
4 |
11.99 |
5 |
TGX-7 |
NC38 |
146 |
146 |
210 |
177.8 |
8.05 |
6 |
9.19 |
7 |
10.36 |
8 |
11.51 |
9 |
12.65 |
10 |
13.72 |
11 |
TGX-5 |
NC31 |
114 |
114 |
170 |
139.7 |
7.72 |
12 |
9.17 |
13 |
10.54 |
Instructions for ordering:
1. Specification, dimension, connection thread, direction;
2. If there are special requirements, please indicate.

Dongying TIANRUI PETROLEUM Technology Co., Ltd., established in November 2003 and located in the Dongying Economic Development Zone, is an investment project in Dongying City. It is mainly engaged in the research, design, manufacturing and technical services of oil drilling and workover tools. The company consists of six departments and two workshops, namely the design department, the quality inspection department, the market operation department, the comprehensive department, the technical service department, the financial department, the processing workshop and the assembly workshop. It possesses rich R & D and design capabilities as well as manufacturing capabilities in oil drilling and workover tools.


1. How do we guarantee quality?
Pre-production samples are always available before mass production;
Always carry out final inspection before shipment;
2. What can you buy from us?
Aluminum plate, aluminum coil, aluminum foil, carbon steel, alloy steel, stainless steel, copper galvanizing, etc
4. What services can we provide?
Accepted delivery conditions: FOB, CIF, FAS, DDP, express;
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Payment types accepted: T/T, L/C, MoneyGram, credit card, PayPal, Western Union remittance, cash;
5.After-sales service: 24-hour online maintenance guidance service.
6.Language: English, Chinese and Other.