DCDMA Standard Wireline Core Drill Rods BQ NQ HQ PQ - 3m Length, Ø55.6mm to Ø114.3mm Body Sizes for Mining
Price:
Negotiation
MOQ:
50 meters
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Wireline Core Drill Rods - DCDMA Standard
High-performance wireline core drill rods manufactured to DCDMA standards for mining and exploration applications. Available in BQ, NQ, HQ, and PQ specifications with 3-meter standard lengths.
Key Specifications & Features
- High-quality alloy steel construction
- Through-wall heat treatment for enhanced durability
- Consistent concentricity and straightness
- DCDMA standard tapered threads
- CNC precision thread processing
- Phosphate coating for improved surface conditions
Material Standards & Grades
ROSCHEN selects premium steel tubes and conducts comprehensive quality checks to ensure material composition and specifications meet industry requirements.
| Grade | Performance | Material | Heat Treatment |
|---|---|---|---|
| A | Standard | 30CrMnSiA, 45MnMoB, 40/41 | Entire-length or ends thermal processed, Thread Nickel Coating |
| B | Premium | XJY850, BG850, RS950 | Entire-length processed |
Technical Parameters
| Standard | Specification | Body Size (mm) | Length (M) | Bit Standard |
|---|---|---|---|---|
| B | BQA, BQB, BRQ | Ø55.6×4.8 | 3 | BQ |
| N | NQA, NQB, NRQ | Ø71×5.5 | 3 | NQ |
| H | HQR, HQB, HRQ | Ø89×5.6 | 3 | HQ |
| P | PQA, PQB, PRQ | Ø114.3×6.35 | 3 | PQ |
Complete Product Range
- Drill Rods: BQ, NQ, HQ, PQ series
- Casing Tubes: BW, NW, HW, PW, HWT, PWT
- Bits: Impregnated diamond bits, tri-tube core barrel, PDC diamond bit
- Reaming Shells: BQ, NQ, HQ, PQ series
- Core Barrels: Complete assemblies and components
- Drill Tools: Lifting tools, wrenches, adapters, and accessories
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael