Roschen group limited has a group of experienced engineers and advanced manufacturing technology and producing line. We not only provide the common productions as the marketing request, we can also design and supply the special productions as the individual client demanding.
| Q series Diamond core bits |
| Size |
O.D |
I.D |
Availability |
| mm |
mm |
Imp. |
S.S |
T.C. |
PDC |
TSP |
E.P. |
| AQ |
47.75/47.50 |
27.10/26.85 |
√ |
√ |
√ |
√ |
√ |
√ |
| BQ |
59.69/59.44 |
36.52/36.27 |
√ |
√ |
√ |
√ |
√ |
√ |
| BQ3 |
59.69/59.44 |
33.65/33.40 |
√ |
√ |
√ |
√ |
√ |
√ |
| NQ |
75.44/75.19 |
47.75/47.50 |
√ |
√ |
√ |
√ |
√ |
√ |
| NQ3 |
75.44/75.19 |
45.21/44.96 |
√ |
√ |
√ |
√ |
√ |
√ |
| HQ |
95.76/95.38 |
63.63/63.38 |
√ |
√ |
√ |
√ |
√ |
√ |
| HQ3 |
95.76/95.38 |
61.24/60.99 |
√ |
√ |
√ |
√ |
√ |
√ |
| PQ |
122.30/121.80 |
85.09/84.84 |
√ |
√ |
√ |
√ |
√ |
√ |
| PQ3 |
122.30/121.80 |
83.18/82.93 |
√ |
√ |
√ |
√ |
√ |
√ |
| Core bits for N-series double core barrels |
| NMLC |
75.44/75.19 |
52.12/51.87 |
√ |
√ |
√ |
√ |
√ |
√ |
| HMLC |
98.98/98.60 |
63.63/63.38 |
√ |
√ |
√ |
√ |
√ |
√ |
| Core bits for T2 series double core barrels |
| T2-46 |
46.18/45.92 |
31.82/31.57 |
√ |
√ |
√ |
√ |
√ |
√ |
| T2-56 |
56.13/55.88 |
41.83/41.58 |
√ |
√ |
√ |
√ |
√ |
√ |
| T2-76 |
76.12/75.87 |
61.82/61.57 |
√ |
√ |
√ |
√ |
√ |
√ |
| T2-86 |
86.13/85.88 |
71.83/71.58 |
√ |
√ |
√ |
√ |
√ |
√ |
| T2-101 |
101.12/100.87 |
83.82/83.57 |
√ |
√ |
√ |
√ |
√ |
√ |
| Core bits for T6 series double core barrels |
| T6-76 |
76.12/75.87 |
57.12/56.87 |
√ |
√ |
√ |
√ |
√ |
√ |
| T6-86 |
86.13/85.88 |
67.13/66.88 |
√ |
√ |
√ |
√ |
√ |
√ |
| T6-101 |
101.12/100.87 |
79.12/78.87 |
√ |
√ |
√ |
√ |
√ |
√ |
| T6-116 |
116.20/115.82 |
93.14/92.89 |
√ |
√ |
√ |
√ |
√ |
√ |
| T6-131 |
131.19/130.81 |
108.13/107.88 |
√ |
√ |
√ |
√ |
√ |
√ |
| T6-146 |
146.18/145.80 |
123.11/122.86 |
√ |
√ |
√ |
√ |
√ |
√ |
| Core bits for Chinese standard single tube core barrels |
| 59 |
59.5 |
41.5 |
√ |
√ |
√ |
√ |
√ |
√ |
| 75 |
75.2 |
54.5 |
√ |
√ |
√ |
√ |
√ |
√ |
| 91 |
91.2 |
68 |
√ |
√ |
√ |
√ |
√ |
√ |
| 110 |
111.2 |
93 |
√ |
√ |
√ |
√ |
√ |
√ |
| 130 |
131.2 |
113 |
√ |
√ |
√ |
√ |
√ |
√ |
| 150 |
151.2 |
133 |
√ |
√ |
√ |
√ |
√ |
√ |
| 170 |
171.2 |
149 |
√ |
√ |
√ |
√ |
√ |
√ |
| 219 |
225.2 |
197 |
√ |
√ |
√ |
√ |
√ |
√ |
| Core bits for Chinese standard double tube core barrels |
| 75 |
75.2 |
54.5 |
√ |
√ |
√ |
√ |
√ |
√ |
| 91 |
91.2 |
68 |
√ |
√ |
√ |
√ |
√ |
√ |
| 110 |
111.2 |
93 |
√ |
√ |
√ |
√ |
√ |
|
Noted:
Imp.-Impregnated Diamond Type
S.S.-Surface Set Diamond Type
T.C.-Tungsten Carbide Type
PDC.-Polycrystalline Diamond compact Type
E.P.- Electroplated Diamond Type
Notice :
To select the right bit for the job, assess the speed and power of your drill for the size and depths of the holes to be drilled and assess ground conditions such as rock type/formation and down-hole conditions.
Size:
Roschen diamond core bits are available in all standard drilling sizes. Also, non-standard sized bits can be produced according to requirements from clients.
Crown Height:
Roschen offers crown impreg depths of 9mm, 12mm, and 16mm .The taller crown heights provide improved bit stability and reduced vibrations, enhancing bit life and performance.
Waterways:
Various waterways are available for diamond impregnated bits. Differing waterways allow for better flushing in various ground conditions and drilling systems.
Matrix:
Roschen impregnated bits matrices can be selected by our engineer according to ground conditions at client's work site.
Threads:
International standard wireline threads as well as thread types required by clients are available.
Advantages:
1. Fast cutting and drilling speed
2. Long life, stable performance
3. Low power consumption
4. Professional OEM, superior grade quality, more than 5years manufacturing experience
5. CE: ISO: 9001: 2000
Warranty and Service
We always concerned about our clients and provides them with warranty and service support.
The factory ensures equipment warranty for the major assemblies and units efficient for 12 months. The clients are supplied with all needed spare parts, tooling and auxiliary facilities.
The authorized dealers possess service centers to execute product warranty liabilities, after-sales service and equipment repair. The clients' staff is also provided with theoretical and practical company instructions and consultations on all matters concerning execution of work and equipment operation.
FAQ
PCD NQ HQ PQ Polycrystalline Compact Diamond Core Bit , DCDMA Standard 5
Q: Are you trading company or manufacturer ?
A: We are a professional manufacturer.
Q: How long is your delivery time?
A: Generally it is 3 days if the goods are in stock. or it is 10-15 days if the goods are not in stock, it is according to quantity.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance, balance before shippment.
T/T, L/C, Western Union.
Q: What are your main products, and used for?
A: Our products include core bit, PDC bit, reaming shell, core barrel, casing, drill rod, 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?
A: Min. order quantity: 1 piece. 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 promote 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 usually makes a serious inspection for all products and raw materials in strict procedure.
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