Item Description

JCDRILL DTH Drill Pipe
Description
In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes right. Given that the piston is in direct get in touch with with the drill bit, little power is lost. This offers DTH drilling a practically continuous penetration price no matter of gap duration.

Female A Male B Diameter A Diameter B Size
2 3/8API Reg 2 3/8API Reg seventy seven 77 one hundred forty
two 3/8API Reg 2 3/8API Reg 90 90 one hundred forty
two 3/8API Reg two 3/8API Reg 102 102 one hundred thirty
two 3/8API Reg two 3/8API Reg ninety 90 a hundred and forty four
2 3/8API Reg 2 3/8API IF ninety five 95 one hundred thirty
two 3/8API Reg two 7/8API Reg 90 102 a hundred and twenty
two 3/8API IF three 1/2API Reg ninety 90 164
two 7/8API Reg 2 3/8API Reg ninety 90 154
two 7/8API Reg 2 3/8API Reg ninety one hundred fifteen a hundred and twenty
3 1/2API Reg three 1/2API Reg one hundred fifteen a hundred and fifteen 219
three 1/2API Reg two 3/8API IF a hundred and fifteen a hundred and fifteen one hundred sixty
three 1/2API Reg two 7/8API Reg 115 a hundred and fifteen one hundred sixty
3 1/2API Reg two 7/8API IF one hundred fifteen 115 160
three 1/2API Reg three 1/2API Reg one hundred fifteen 115 one hundred sixty
3 1/2API Reg 4 1/2API Reg 146 146 132
four 1/2API Reg three 1/2API Reg 146 one hundred fifteen 235
F48×10 F42×10 fifty nine 59 203
F48×10 F48×10 fifty nine fifty nine 203
F48×10 2″API Reg 59 fifty nine 203

Feminine – Female

Woman A Male B Diameter A Diameter B Size
two 3/8API Reg 2 3/8API Reg 77 77 two
 
Net: cnjctech
 

To Be Negotiated 20 Pieces
(Min. Order)

###

Type: Rock Drill Tools
Application: Drilling
Certification: CE, ISO9001: 2000
Condition: New
Transport Package: Normal Export Package
Trademark: JC DRILL

###

Samples:
US$ 20/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 77 77 140
2 3/8API Reg 2 3/8API Reg 90 90 140
2 3/8API Reg 2 3/8API Reg 102 102 130
2 3/8API Reg 2 3/8API Reg 90 90 144
2 3/8API Reg 2 3/8API IF 95 95 130
2 3/8API Reg 2 7/8API Reg 90 102 120
2 3/8API IF 3 1/2API Reg 90 90 164
2 7/8API Reg 2 3/8API Reg 90 90 154
2 7/8API Reg 2 3/8API Reg 90 115 120
3 1/2API Reg 3 1/2API Reg 115 115 219
3 1/2API Reg 2 3/8API IF 115 115 160
3 1/2API Reg 2 7/8API Reg 115 115 160
3 1/2API Reg 2 7/8API IF 115 115 160
3 1/2API Reg 3 1/2API Reg 115 115 160
3 1/2API Reg 4 1/2API Reg 146 146 132
4 1/2API Reg 3 1/2API Reg 146 115 235
F48×10 F42×10 59 59 203
F48×10 F48×10 59 59 203
F48×10 2"API Reg 59 59 203

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 77 77 200
2 3/8API Reg 2 3/8API Reg 90 90 200
2 3/8API Reg 2 7/8API Reg 90 90 225
2 3/8API Reg 3 1/2API Reg 115 115 210

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 90 90 70
2 3/8API Reg 3 1/2API Reg 90 115 97
3 1/2API Reg 3 1/2API Reg 115 115 90

###

Q: Are you original manufacturer? Q: Which payment terms are available to us? Q: Which Incoterms 2010 terms can we work?

A: Yes, we JCDRILL is a official leading manufacture in drilling machinery in China and we have the whole series products you need.

 

 

A: T/T term or L/C term. On T/T term, 30% down payment is required in advance, and 70% balance shall be settled before shipment. On L/C term, a 100% irrevocable L/C without "soft clauses" can be accepted.

A: We JCDRILL are a professional and international company, accept all Incoterms 2010 terms, normally we work on FOB, CIF, CFR, CIP.

 

 

Q: How long will the delivery time take? Q: How about after sales service?

Q:Spare Parts When You Need Them

 

A: Normally mud pump products will take about 3-15 days to produce the ordered machines. Most of the time, we can have an immediate delivery of our regular machines in 15 days.

 

 

A: 365×24 Year-round Service
We are committed to year-round 24-hour service even during holidays, in line with our policy of always providing "a response within 15 minutes and job completion within 24 hours."

A:We have spare parts centers across continents that stock specialist spare parts. We promise that spare parts will be delivered within 72 hours or no more than one week.

 

 

###

Sub Drill Rod Adapter DTH Drilling Tools Thread Male Adapter Coupling
Cedar Jiang Sales Manager
BEIJING JINCHENG MINING TECHNOLOGY CO., LTD
Add: Rm1407,Building A, NO. 13 Beiyuan Road,Chaoyang,Beijing, China
Mob:0086 13521157051
 
Web: cnjctech.en.made-in-china.com
 
To Be Negotiated 20 Pieces
(Min. Order)

###

Type: Rock Drill Tools
Application: Drilling
Certification: CE, ISO9001: 2000
Condition: New
Transport Package: Normal Export Package
Trademark: JC DRILL

###

Samples:
US$ 20/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 77 77 140
2 3/8API Reg 2 3/8API Reg 90 90 140
2 3/8API Reg 2 3/8API Reg 102 102 130
2 3/8API Reg 2 3/8API Reg 90 90 144
2 3/8API Reg 2 3/8API IF 95 95 130
2 3/8API Reg 2 7/8API Reg 90 102 120
2 3/8API IF 3 1/2API Reg 90 90 164
2 7/8API Reg 2 3/8API Reg 90 90 154
2 7/8API Reg 2 3/8API Reg 90 115 120
3 1/2API Reg 3 1/2API Reg 115 115 219
3 1/2API Reg 2 3/8API IF 115 115 160
3 1/2API Reg 2 7/8API Reg 115 115 160
3 1/2API Reg 2 7/8API IF 115 115 160
3 1/2API Reg 3 1/2API Reg 115 115 160
3 1/2API Reg 4 1/2API Reg 146 146 132
4 1/2API Reg 3 1/2API Reg 146 115 235
F48×10 F42×10 59 59 203
F48×10 F48×10 59 59 203
F48×10 2"API Reg 59 59 203

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 77 77 200
2 3/8API Reg 2 3/8API Reg 90 90 200
2 3/8API Reg 2 7/8API Reg 90 90 225
2 3/8API Reg 3 1/2API Reg 115 115 210

###

Female A Male B Diameter A Diameter B Length
2 3/8API Reg 2 3/8API Reg 90 90 70
2 3/8API Reg 3 1/2API Reg 90 115 97
3 1/2API Reg 3 1/2API Reg 115 115 90

###

Q: Are you original manufacturer? Q: Which payment terms are available to us? Q: Which Incoterms 2010 terms can we work?

A: Yes, we JCDRILL is a official leading manufacture in drilling machinery in China and we have the whole series products you need.

 

 

A: T/T term or L/C term. On T/T term, 30% down payment is required in advance, and 70% balance shall be settled before shipment. On L/C term, a 100% irrevocable L/C without "soft clauses" can be accepted.

A: We JCDRILL are a professional and international company, accept all Incoterms 2010 terms, normally we work on FOB, CIF, CFR, CIP.

 

 

Q: How long will the delivery time take? Q: How about after sales service?

Q:Spare Parts When You Need Them

 

A: Normally mud pump products will take about 3-15 days to produce the ordered machines. Most of the time, we can have an immediate delivery of our regular machines in 15 days.

 

 

A: 365×24 Year-round Service
We are committed to year-round 24-hour service even during holidays, in line with our policy of always providing "a response within 15 minutes and job completion within 24 hours."

A:We have spare parts centers across continents that stock specialist spare parts. We promise that spare parts will be delivered within 72 hours or no more than one week.

 

 

###

Sub Drill Rod Adapter DTH Drilling Tools Thread Male Adapter Coupling
Cedar Jiang Sales Manager
BEIJING JINCHENG MINING TECHNOLOGY CO., LTD
Add: Rm1407,Building A, NO. 13 Beiyuan Road,Chaoyang,Beijing, China
Mob:0086 13521157051
 
Web: cnjctech.en.made-in-china.com
 

Programming With Couplings

A coupling is a mechanical device that connects two shafts together and transmits power. Its purpose is to join rotating equipment and allows some degree of end-movement or misalignment. There are many different types of couplings. It’s important to choose the right one for your application.
gearbox

Mechanical connection between two shafts

There are many ways to achieve mechanical connection between two shafts, including the use of a coupling. One common type is the beam coupling, which is also known as a helical coupling. It is used for transmission of torque between two shafts. This type of connection accommodates axial, parallel and angular misalignments.
The hubs and shafts of a worm gear are connected together by a coupling. This mechanical connection allows one shaft to turn another without causing a mechanical failure. This type of coupling is made from sliding or rubbing parts to transfer torque. However, the coupling is not designed to withstand jerks, so it isn’t suitable for high-speed applications.
The use of a coupling is common in machinery and equipment. It helps transmit power from one drive shaft to the other, while adding mechanical flexibility. It is also useful for reducing the impact and vibration caused by misalignment. It also protects the drive shaft components from wear and tear.
A double-hook coupling can be used to provide a uniform angular velocity at the driven shaft. Another example is a double-jointed coupling. A double-jointed coupling can be used to connect shafts that are not directly intersecting. The double-jointed yoke can be used for the same purpose.
A shaft coupling is a device that maintains a strong mechanical connection between two shafts. It transfers motion from one shaft to another, at all loads and misalignments. Unlike a conventional linkage, a shaft coupling isn’t designed to allow relative motion between the two shafts. Couplings often serve several purposes in a machine, but their primary use is torque and power transmission.

Functions that control the flow of another function

One of the simplest programming constructs is a function that controls the flow of another function. A function can take an argument and return a different value, but it must be ready to return before it can pass that value to another function. To do this, you can use the goto statement and the if statement. Another way to control flow is to use a conditional statement.
gearbox

Criteria for selecting a coupling

There are several important factors to consider when choosing the right coupling. One of the most important factors is coupling stiffness, which depends on the material used and the shape. The stiffness of a coupling determines its ability to resist elastic deformation. A stiff coupling is desirable for certain types of applications, but it’s undesirable for others. Stiffness can reduce the performance of a system if there’s too much inertia. To avoid this, ensure that the coupling you choose is within the recommended limits.
The size of a coupling is also important. Different coupling types can accommodate different shaft sizes and shapes. Some couplings have special features, such as braking and shear pin protection. When choosing a coupling, you should also consider the type of driven equipment. If you need to connect a high-torque motor, for example, you’ll want to choose a gear coupling. Likewise, a high-speed machine may require a disc coupling.
Another factor to consider when selecting a coupling is the torque rating. Despite its importance, it’s often underestimated. The torque rating is defined as the torque of the coupling divided by its OD. In some cases, torque may fluctuate during a cycle, requiring a coupling with a higher torque rating.
Torsionally flexible couplings are also important to consider. Their design should be able to withstand the torque required during operation, as well as the required speed. The coupling should also have a high degree of torsional stiffness, as well as damping. Furthermore, a damping coupling can reduce the energy wasted through vibration.
The sizing of a coupling is also determined by the torque. Many engineers use torque to select the correct coupling size, but they also take into consideration torsional flexibility and torsional stiffness. For example, a shaft may be able to handle large torque without damaging the coupling, while a disk may be unable to handle large amounts of torque.
Besides torque, another important consideration in coupling selection is the cost. While a coupling may be cheaper, it may be less reliable or easier to maintain. Couplings that are difficult to service may not last as long. They may also require frequent maintenance. If that’s the case, consider purchasing a coupling with a low service factor.
There are many different types of couplings. Some require additional lubrication throughout their lifetime, while others are 100% lubrication-free. An example of a 100% lubrication-free coupling is the RBI flexible coupling from CZPT. This type of coupling can significantly reduce your total cost of ownership.
In addition to the above-mentioned benefits, elastomeric couplings are low-cost and need little maintenance. While they are often cheaper than metallic couplings, they also have excellent shock absorption and vibration dampening properties. However, they are susceptible to high temperatures. Also, they are difficult to balance as an assembly, and have limited overload torque capacity.
China Sub Drill Rod Adapter DTH Drilling Tools Thread Male Adapter Coupling     breakaway couplingChina Sub Drill Rod Adapter DTH Drilling Tools Thread Male Adapter Coupling     breakaway coupling
editor by czh 2023-01-30