1.Product description
Specifications of circulating cross over subÂ
A bit sub is a short, threaded piece of pipe used to adapt parts of the drilling string that cannot otherwise be screwed together because of differences in thread size or design.
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| Denotation | Top junction block | Lower junction block | Type |
| Kelly joint | Kelly | Drill pipe joint | A or B |
| Kelly joint | Drill pipe joint | Drill pipe joint | A or B |
| Drill pipe joint | Kelly | Drill collar | A or B |
| Crossover joint | Drill collar | Drill collar | A or B |
| Bit joint | Drill collar | Bit | A or B |
| Swivel joint | Swivel lower joint | Kelly | Type C |
| Fish joint | Kelly | Drill pipe joint | Type C |
| Drill pipe joint | Fishing tool | Type C |
Material |
4145H |
| Model A | 2 3/8''IF(box or pin)-2 7/8''IF(box or pin) |
| Model B | 2 3/8''IF(box or pin)-3 1/2''IF(box or pin) |
| Model C | 2 3/8''IF(box or pin)-4 1/2''IF(box or pin) |
| Model D | 2 3/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model E | 2 7/8''reg(box or pin)-3 1/2''reg(box or pin) |
| Model F | 2 7/8''reg(box or pin)-4 1/2''reg(box or pin) |
| Model G | 3 1/2''IF(box or pin)-4 1/2''reg(box or pin) |
| Model H | 4 1/2''reg(box or pin)-6 5/8''reg(box or pin) |
| Model I | 6 5/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model J | 4''FH(box or pin)-5 1/2'' FH(box or pin) |
2.circulating cross over sub/crossover sub's picture
Bit sub/crossover sub /circulating cross over sub
Cross-over sub acts for conversion and connection of drill stem component in petroleum,natural gas and geology drilling work. It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations.
5.Our service
Delivery Time: Based on order quantity, normally it takes 30 days for production.Only 2 or 3 days if we
have stock on your request size.
Quality Control: We have our professional QC and all the products will be strict inspection and testing for
every order before shipping out.Â
After Services: Technical Support will be available in any time. We could provide the professional suggestion
for you.
EX: 1.Select the right most suitable products.
     2. According to the rock types, choosing the face type, button tooth type.
     3. According to the different purpose,. choosing the different body typeÂ
6.Contact us
All sizes and type can be customized.
If you need,welcome to contact me at any time.....
1.Product description
Specifications of circulating cross over subÂ
A bit sub is a short, threaded piece of pipe used to adapt parts of the drilling string that cannot otherwise be screwed together because of differences in thread size or design.
Â
| Denotation | Top junction block | Lower junction block | Type |
| Kelly joint | Kelly | Drill pipe joint | A or B |
| Kelly joint | Drill pipe joint | Drill pipe joint | A or B |
| Drill pipe joint | Kelly | Drill collar | A or B |
| Crossover joint | Drill collar | Drill collar | A or B |
| Bit joint | Drill collar | Bit | A or B |
| Swivel joint | Swivel lower joint | Kelly | Type C |
| Fish joint | Kelly | Drill pipe joint | Type C |
| Drill pipe joint | Fishing tool | Type C |
Material |
4145H |
| Model A | 2 3/8''IF(box or pin)-2 7/8''IF(box or pin) |
| Model B | 2 3/8''IF(box or pin)-3 1/2''IF(box or pin) |
| Model C | 2 3/8''IF(box or pin)-4 1/2''IF(box or pin) |
| Model D | 2 3/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model E | 2 7/8''reg(box or pin)-3 1/2''reg(box or pin) |
| Model F | 2 7/8''reg(box or pin)-4 1/2''reg(box or pin) |
| Model G | 3 1/2''IF(box or pin)-4 1/2''reg(box or pin) |
| Model H | 4 1/2''reg(box or pin)-6 5/8''reg(box or pin) |
| Model I | 6 5/8''reg(box or pin)-3 1/2''IF(box or pin) |
| Model J | 4''FH(box or pin)-5 1/2'' FH(box or pin) |
2.circulating cross over sub/crossover sub's picture
Bit sub/crossover sub /circulating cross over sub
Cross-over sub acts for conversion and connection of drill stem component in petroleum,natural gas and geology drilling work. It is used mainly for connecting of upper drill tools and lower drill tools during drilling operations.
5.Our service
Delivery Time: Based on order quantity, normally it takes 30 days for production.Only 2 or 3 days if we
have stock on your request size.
Quality Control: We have our professional QC and all the products will be strict inspection and testing for
every order before shipping out.Â
After Services: Technical Support will be available in any time. We could provide the professional suggestion
for you.
EX: 1.Select the right most suitable products.
     2. According to the rock types, choosing the face type, button tooth type.
     3. According to the different purpose,. choosing the different body typeÂ
6.Contact us
All sizes and type can be customized.
If you need,welcome to contact me at any time.....
Powerful Double-Toothed Roll Crusher
The graded toothed roller crusher is powered by two electric motors, which are decelerated by a reducer and then drive two parallel mounted toothed rollers to rotate in opposite directions. When the material falls between the two rollers of the graded crusher, the material is first screened with spiral teeth or knife shaped teeth. Particles smaller than the discharge particle size directly pass through without crushing, and enter the discharge chute. Under the combined action of vertical stress or shear force, large pieces of material are split by the teeth of the toothed roller Shearing and stretching are broken and discharged from the discharge port.
Advantages of Powerful Double-Toothed Roll Crusher
1. The grading crusher crushes materials by shearing and stretching, resulting in uniform particle size of the product after crushing, with low levels of over particle size and overfilling.
2. The transmission device has a compact structure, flexible operation, low noise, and high safety.
3. Adopting a hydraulic coupling and a "utility model" safety coupling for dual overload protection, it is safe and reliable.
4. Adopting a "utility model" crusher tooth plate, the tooth plates are arranged in a spiral manner, with good wear resistance and long service life.
5. The body adopts a modular design, and the combination of various units is convenient and fast, making it easy to disassemble and transport underground and coal buildings.
6. The overall height is low, suitable for working environments with limited space.
7. According to user requirements, speed sensors and PLC programming can be installed to control the working status of monitoring equipment, achieving remote control.
8. Adopting an automatic oil supply system to extend the service life of bearings and reduce the intensity of daily maintenance work.
Powerful Double-Toothed Roll Crusher,Double Roller Crusher
SiChuan TieYing Machinery Manufacturing CO.,LTD; , https://www.tieyingcrushers.com