We are a leading manufacturer of rock drilling tools, like DTH hammers and bits, DTH drill pipes, RC hammers and bits, tophammer button bits, coupling, cross bits, drill rods located in Germany, China(joint-venture).
We have rich experience in this field of DTH hammers and bits for 60 years.
Owing to high quality, professional serivce and competitive price, we have gotten good reputation from our customers from all over the world, such as US, Canada, France, Spain, Italy, South Africa, Iran, Malaysia, Australia, etc.
Product Description
Forsun manufacture differenct types of the core barrels with high quality.
Size Available:
B76 core barrel, B86 core barrle, B101 core barrel, B131 core barrel, B146 core barrel
BQ core barrel NQ core barrel, HQ core barrel PQ core barrrel, NQ3 core barrel, HQ3 core barrel, PQ3 core barrel
TT-46 core barrel TT56 core barrel
T2-56 core barrel, T2-66 core barrel, T2-76 core barrel, T2-86 core barrel, T2-101 core barrel
T6-76 core barrel T6-86 core barrel T6-101 core barrel T6-116 core barrel T6-131 core barrel T6-131 core barrel
T6S-76, T6S-86, T6s-101, T6s-131, T6S-146 core barrel
NMLC core barrel, HMLC core barrel
HWF core barrel, PWF core barrel
NWG core barrel, HWG core barrel
LTK48 core barrel
Mazier core barrel
412 F core barrel
M101 core barrel
Chinese Standard: Wireline 56, wireline 59, wireline 75, wireline 91...
Wireline drilling is the special method of removing the core. When the driller wants to remove core from a conventional core drill, the entire core barrel has to be removed from the hole. This is time-consuming, as each rod has to be removed one at a time. With wireline drilling, a barrel of core can be removed from the bottom of the hole without removing the rod string. When the driller wants to remove the core, an overshot is lowered on the end of a wireline. The overshot attaches to the back of the core barrel inner tube and the wireline is pulled back and the inner tube disengages itself from the barrel.
| Standard "Q" wire line bit sizes |
| Size | Hole (outside) diameter, mm | Core (inside) diameter, mm |
| AQ | 48 | 27 |
| BQ | 60 | 36.5 |
| NQ | 75.7 | 47.6 |
| HQ | 96 | 63.5 |
| PQ | 122.6 | 85 |
| CHD 76 | 75.7 | 43.5 |
| CHD 101 | 101.3 | 63.5 |
| CHD 134 | 134 | 85 |
| Q Series Wireline Core Barrel System Sizes |
| SIZE | CORE Ø | HOLE Ø |
| AQTK | 35.5 mm (1-3/8 in) | 48 mm (1-7/8 in) |
| BQ | 36.4 mm (1-7/16 in) | 60 mm (2-3/8 in) |
| BQTK | 40.7 mm (1-5/8 in) | 60 mm (2-3/8 in) |
| NQ | 47.6 mm (1-7/8 in) | 75.7 mm (3 in) |
| NQTK (NQ2") | 50.6 mm (2 in) | 75.7 mm (3 in) |
| NQ3 | 45 mm (1-3/8 in) | 75.7 mm (3 in) |
| HQ | 63.5 mm (2-1/2 in) | 96 mm (3-3/8 in) |
| HQ3 | 61.1 mm (2-3/8 in) | 96 mm (3-3/8 in) |
| PQ | 85 mm (3-3/8 in) | 122.6 mm (4-7/8 in) |
| PQ3 | 83 mm (3-1/4 in) | 122.6 mm (4-7/8 in) |
| Roschen Core Barrel System Sizes |
| SYSTEM | CORE Ø | HOLE Ø |
| mm | in | mm | in |
| A | 48,0 | 1.89 | 27,0 | 1.06 |
| B | 59,9 | 2.36 | 36,4 | 1.43 |
| N | 75,7 | 2.98 | 47,6 | 1.88 |
| H | 96,1 | 3.78 | 63,5 | 2.5 |
| P | 122,6 | 4.83 | 85,0 | 3.35 |
FAQ
Q: Are you a manufacturer or trading company?
A: We are a specialized manufacturer.
Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, SPT equipment, Shelby sampler, drill rig and other drilling parts.
They are used for mineral exploration, geological drilling, geotechnical engineering and soil sampling.
Q: How about the delivery terms?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.
Q: How about discount?
A: Price is based on products and order quantity.
Q: Do you accept sample order?
A: Yes sure, please contact us for details.
Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.
Q: How does your company control the quality?
A: Quality first. In order to guarantee high quality for our products, Roschen always makes a serious inspection for all products and raw materials in strict procedure. We have obtained certificate of ISO9001:2000 in 2004.
For more information please contact:
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Website: http://www.roschen.net
; http://www.roschen.cn
http://www.roschen.com
; http://www.roschengroup.com
ROSCHEN Geotechnical drilling, geothermal drilling, Oil and gas drilling, Exploration Core drilling, Rock Drilling products
ROSCHEN Geotechnical drilling, geothermal drilling, Oil and gas drilling, Exploration Core drilling, Rock Drilling, can offer the equipment needed for all rock drilling, underground and surface exploration applications in Mining Industry, Water Well Industry, Oil Field Industry and geothermal industry, etc. This includes rigs and all full range of high technology and high quality products, ITH equipment such as button bit, DTH bit, DTH Hammer, wireline series products, metric series products, drill rod and conventional core barrel, overshot, as well as casing and diamond core bit - all designed to maximize our customer profitability.
Rock drilling and Exploration drilling is tough, results-driven work. And if you want it done right, you need the right tools. ROSCHEN Exploration Products has the products you've depended on for many years.
All our products are designed to help the user minimize down-time and maximize productivity. ROSCHEN products used in many industries: Waterwell, Environmental, Oil Exploration, Mining, Geothermal and Construction.
We build drill bits to the highest standards - using raw materials selected for quality and durability, and assembling them with the latest metallurgical technology.
Our innovative and unique alloy formulations assure you of maximum penetration under all conditions, and ROSCHEN can customize drill bits to your specifications for any especially difficult drilling situations.
You'll find our experienced production team delivers exactly what you need - any time, anywhere. ROSCHEN has one clear focus - to provide the best diamond-drilling tools, equipment and accessories for the world's leading mineral drilling exploration companies.
ROSCHEN'S mission is:
· To strive to create and supply quality products for the industry that last longer than the average products.
· To provide excellent service for our clients. We work on a 24 hour-7 days a week schedule to get our clients what they need - FAST.
ROSCHEN INC.
ROSCHEN GROUP LIMITED
ROSCHEN HOLDINGS LIMITED
Direct Line: +86-1376419 5009
