Hexagonal Kelly
| US$135,000.00 | 1 Piece (MOQ) |
Beijing, China
Last Login Date:
Jul 26, 2025
Business Type:
Manufacturer/Factory
Main Products:
Low Temperature Air Transportion Equipment, Petroleum Oilfield Equipment, CNG Skid Tube, Gas Turbine, Construction Machinery, Petroleum Equipment, Steam Turbine, Gas Generator, Petroleum Cementing Unit, Petroleum Coiled Tubing Unit
Product Description
Company Info
Basic Info.
Product Description
Kelly is located in the top of the drill string, with square and hexagonal. In rotary drilling, when it is drilling, kelly connected with square bushing and rotary bushing.
Product Description
Introduction
Kelly is located in the top of the drill string, with square and hexagonal. In rotary drilling, when it is drilling, kelly connected with square bushing and rotary bushing, transfer the ground rotary torque to drill pipe and to drive the drill bit,bearing the weight of the drill string.In the drilling of the turbine and screw, the weight of the drill string and the counter torque are supported.
1 | 2 3 | 4 5 | 6 | 7 | 8 | 9 | 10 | 11 | ||
| Length of driving part | Total length | Width across sides | Diagonal width | Diagonal width | radius | radius | Eccentric hole | ||
Kelly | f | t | f | t | - | - | - | - | - | Minimum wall thickness |
Specificationsa | standard | Selection | standard | Selection | in | in | in | in | in | in |
- | L D | L D | L | L | "fl | De | Dee | Rc | Rec | t |
- | 0.5 | 0.5 | 0.5 | 0.5 | 0.03125 | ±1/32 | 0 | ±1/32 | - | - |
- | -0.42 | -0.42 | 0 | 0 | 0 | - | -0.015 | - | - | - |
3 | 37 | -- | 40 | -- | 3 | 3 3/8 | 3.375 | 1. 4 | 1 11/16 | 0.475 |
3 1/2 | 37 | -- | 40 | -- | 3 1/2 | 3 31/32 | 3.937 | 1. 4 | 1 31/32 | 0.525 |
4 1/4 | 37 | 51 | 40 | 54 | 4 1/4 | 4 13/16 | 4.781 | 5. 16 | 2 25/64 | 0.625 |
5 1/4 | 37 | 51 | 40 | 54 | 5 1/4 | 5 31/32 | 5.9 | 3. 8 | 2 61/64 | 0.625 |
6 | 37 | 51 | 40 | 54 | 6 | 1 13/16 | 0.622 | 0.623 | 0.624 | 0.625 |
aSpecification of hexagonal drill pipe | -The column value is the same as the opposite width "FL (distance between opposite sides) of the sixth column. | - | - | |||||||
Production
For common sucker rod
Raw Material Test → Cold Straighten → Cut → Forge → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Assembly → Protective Cap → Package → Aczoiling Treatment.
For extra high tensile sucker rod
Raw Material Test → Cold Straighten → Cut → Forge → Quenched And Tempered → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Surface Quenched → Assembly → Protective Cap → Package → Aczoiling Treatment.
Shot blasting
SAINTWAH INC. sophisticated production equipment,detection means complete, strong technical force. Mainly includes the 800 tons of fully automatic intelligent horizontal forging machine, intelligent friction welding machine, 1000 tons of hydraulic straightening machine, 800 tons of hydraulic upsetting units and the most advanced heat treatment production line; Company has a staff of 268 people, including senior professional and technical personnel more than 50 people.
In 2008 the company officially became a member of China national petroleum corporation supplies suppliers. Products exported to Canada, the United States, Germany, Mexico, Australia, Turkey, Syria, Venezuela, Malaysia, Kazakhstan, Indonesia, India and so on more than 20 countries and regions.
We can accept the special requirement of order and technical cooperation, we are willing to work with global customers a friendly, equal and mutually beneficial trade.
