Brand Name : Teamwhole
Model Number : Concentric casing system
Certification : ISO9001
Place of Origin : Hunan, China (Mainland)
MOQ : 1 Set
Price : Negotiation
Payment Terms : L/C, T/T
Supply Ability : 500 Set/Sets per Month
Delivery Time : within 20 days after full payment
Packaging Details : Wooden outer , and cartons inner
Machine Type : Drilling Tool
Material : alloy steel
Wall Thichness of Casing Tube : 6.5~10mm
inner dia. of casing tube : 101~199
drill pipes : 76~114mm
wings : 2pcs、3pcs
Concentric System Symmetrix Overburden Casing System With Wings
General Introduction |
Application Range:
It is recommended to drill in rock formation where contains some ovals and fracture.
Design Principles:
The stabel and reliable working performance and the less vibration of drill rig.
Different Structures:
Concentric system with ring bits,with wings and with blocks.
Operation Procedure
1. when the drilling starts, the wings swing out, and reams to drive the casing shoes and tubes into the hole.
2. When finished the drilling in overburden rock formations, reverse the drilling tools and the wings will get closed, and the drilling tools can be raised from the hole.
3. Next construction can be followed.
Raw Material |
Steel:
first class special alloy steel with high strength, heat resistance and wearable
Carbide
The best tungsten carbides from China are commonly applied.
Tungsten carbide from European is also available.
Specification |
A | B | C | D | E | F |
Outer Dia. of Casing Tube | Inner Dia. of Casing Tube | Reamed Dia. | Min. Inner Dia. of Casing Shoe |
Hammer Type
| Drill Pipes
|
mm | mm | mm | mm | mm | |
114 | 101-103 | 125 | 93 | TH79 | 60 |
140 | 124-127 | 152 | 113 | TH98 | 76 |
146 | 127-132 | 154 | 115 | TH98 | 76 |
168 | 149-155 | 184 | 138 | TH122 | 76,89 |
178 | 159-165 | 194 | 148 | TH122 | 76,89 |
193 | 173-180 | 206 | 164 | TH139 | 114 |
219 | 199-206 | 234 | 185 | TH139,TH180 | 114 |
244 | 224-231 | 273 | 219 | TH180 | 114 |
How to complete the whole deal
Step:
1. Firstly decide the design, material and color
2. Decide the size in accordance with client's requirement and our
recommendation
3. We will give the best offer.
4. Client's accept the offer and we send proforma invoice.
5. Client transfers 30%-50% deposit and production begins
6. After production, we will send ready products photo
7. After client's confirmation, we will arrange shipment, and send
copy shipping documents like B/L, commercial invoice and
packing list
8. Client transfer balance payment and we will send original
documents by DHL or EMS
Symmetrix Overburden Casing Drilling System With Wings 76~114mm Drill Pipes Images |