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[China]
Trade Verify
Address: Room9-616, No. 10 Zhenxing Road (MDW Plaza), Changping District, 102200 Beijing, China
Contact name:Yingkai Zhang
KSQ Technologies (Beijing) Co. Ltd |
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Verified Suppliers
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Underground Mining Drill Sub for 9.1 / 2-inch tricone drills or for 3-inch drill bits
Crossover sub is mainly used to connect upper and lower drill tools in different
connectors in drilling operations. Also it can be used to protect
other tooling in drill stem (called saver sub) or be used to
deliver outgoing air to the bit face just above the bit (called bit
sub).
The length of crossover subs is generally measured from shoulder to
shoulder. Typical lengths range from 6" - 28" long going up in
increments of 2 inches with AISI 4145H, AISI 4145H Mod, AISI 4340,
AISI 4140-4142 and Non-magnetic material. All connections are
phosphate-coated or copper plated to improve resistance to
corrosion. Crossover subs come in three basic types: A Pin (male) *
Box (female); B Pin (male) * Pin (male); C Box (female) * Box
(female)
Crossover sub | |||
Description | Upper Connection pat | Lower Connection Part | Type |
Kelly cross-over sub | Kelly | Drill pipe | A or B |
Drill pipe cross-over sub | Drill pipe | Drill pipe | A or B |
Interim cross-over sub | Drill pipe | Drill collar | A or B |
Drill collar cross-over sub | Drill collar | Drill collar | A or B |
Drill bit cross-over sub | Drill collar | Drill bit | A or B |
Swivel cross-over sub | Swivel lower sub | Kelly | C |
Fishing cross-over sub | Kelly | Drill pipe | C |
Drill pipe | Fishing tools | C | |
Crossover sub can be customized as per customer's design. | |||
Specification:
| DTH Subs Specification | |||||||
| Female- Male | |||||||
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg | |||
| 2 3/8"API Reg | 2 3/8"API Reg | 77 | 77 | 140 | 65 | 4.0 | 4148301570 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 140 | 65 | 5.5 | 4148301571 |
| 2 3/8"API Reg | 2 3/8"API Reg | 102 | 102 | 130 | 76 | 7.8 | 4148301572 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 144 | 65 | 5.5 | 4148301573 |
| 2 3/8"API Reg | 2 3/8"API IF | 95 | 95 | 130 | 65 | 8.0 | 4148301574 |
| 2 3/8"API Reg | 2 7/8"API Reg | 90 | 102 | 120 | 95 | 10.5 | 4148301575 |
| 2 3/8"API IF | 3 1/2"API Reg | 90 | 90 | 164 | 65 | 6.8 | 4148301576 |
| 2 7/8"API Reg | 2 3/8"API Reg | 90 | 90 | 154 | 65 | 6.5 | 4148301577 |
| 2 7/8"API Reg | 2 3/8"API Reg | 90 | 115 | 120 | 95 | 11.0 | 4148301578 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 219 | 95 | 12.5 | 4148301579 |
| 3 1/2"API Reg | 2 3/8"API IF | 115 | 115 | 160 | 95 | 10.5 | 4148301580 |
| 3 1/2"API Reg | 2 7/8"API Reg | 115 | 115 | 160 | 95 | 10.8 | 4148301581 |
| 3 1/2"API Reg | 2 7/8"API IF | 115 | 115 | 160 | 95 | 10.8 | 4148301582 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 160 | 95 | 10.5 | 4148301583 |
| 3 1/2"API Reg | 4 1/2"API Reg | 146 | 146 | 132 | 120 | 16.5 | 4148301584 |
| 4 1/2"API Reg | 3 1/2"API Reg | 146 | 115 | 235 | 95 | 19.0 | 4148301585 |
| F48×10 | F42×10 | 59 | 59 | 203 | 40 | - | 4148301586 |
| F48×10 | F48×10 | 59 | 59 | 203 | 40 | - | 4148301587 |
| F48×10 | 2"API Reg | 59 | 59 | 203 | 40 | - | 4148301588 |
| Female - Female | |||||||
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg | |||
| 2 3/8"API Reg | 2 3/8"API Reg | 77 | 77 | 200 | 65 | 4.5 | 4148301589 |
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 200 | 65 | 6.0 | 4148301590 |
| 2 3/8"API Reg | 2 7/8"API Reg | 90 | 90 | 225 | 65 | 6.2 | 4148301591 |
| 2 3/8"API Reg | 3 1/2"API Reg | 115 | 115 | 210 | 95 | 10.0 | 4148301592 |
| Male - Male | |||||||
| Female A | Male B | Diameter A | Diameter B | Length | Wrench flat | Weight | Part Number |
| mm | mm | mm | mm | kg | |||
| 2 3/8"API Reg | 2 3/8"API Reg | 90 | 90 | 70 | 65 | 4.6 | 4148301593 |
| 2 3/8"API Reg | 3 1/2"API Reg | 90 | 115 | 97 | 95 | 9.0 | 4148301594 |
| 3 1/2"API Reg | 3 1/2"API Reg | 115 | 115 | 90 | 95 | 10.0 | 4148301595 |
Applications
• Underground mining
• Quarry benching operations
• Water well drilling
Pictures:
Company Information
KSQ Technologies (Beijing) Co. Ltd. has significant experience and know-how in the supply of materials, components, finished goods, specially designed/engineered equipment, and services from China. The company caters to medium to large scale clients who are doing projects and capital expansion, as well as to firms who require support with consumable products, maintenance, and repair operations.
