Spiral PDC Core Bit for Geological & Mining Coring
Spiral PDC core drill bit with helical flushing paths for geological and mining sample recovery. Highly abrasive hard rock requires TSP or diamond-bit review.
Spiral Crown Flushing for Efficient PDC Core Sampling
This spiral PDC core bit uses helical crown geometry to guide flushing flow and cuttings away from the cutting face during geological and mining coring. It is best selected for formation-matched PDC applications; granite, quartzite and other highly abrasive hard rock require careful review and may need diamond or TSP alternatives.
Helical Flushing Path
Spiral crown geometry directs fluid and cuttings around the bit face.
Open Core Passage
The center supports sample entry and recovery when matched to the correct core barrel.
Formation-Specific Selection
PDC performance depends strongly on abrasiveness, fracture condition and operating parameters.
Actual Product Views
Technical Specifications
| Product type | Spiral PDC core drill bit |
|---|---|
| Cutting structure | Helical / spiral crown segments with PDC cutting elements and central core passage |
| Body material | Alloy-steel body with PDC cutters and wear-resistant protection |
| Primary applications | Geological exploration, mining coring and formation sampling |
| Recommended formations | Soft to medium-hard formations where spiral flushing improves cuttings removal |
| Important limitation | Granite, quartzite, granodiorite and other highly abrasive or very hard rock may require TSP or impregnated/surface-set diamond bits |
| Available sizes | Current selectable sizes are shown above; core opening, crown layout and thread require confirmation |
| Customization | Outer/inner diameter, spiral geometry, cutter grade/layout, connection, waterways, hardfacing and packaging |
Selection and Operating Guidance
Recommended when
- Flushing and cuttings removal around the crown are priorities.
- A formation sample is required during exploration or mining work.
- Formation data supports PDC cutter selection.
Confirm before ordering
- Rock type, abrasiveness, hardness and fracture condition
- Core diameter, outer diameter, barrel and connection
- Rig speed, feed, flushing capacity and target run length
Performance depends on formation, rig parameters, flushing and operating practice. Final configuration should be confirmed by the technical team.
Fast Quote Checklist
Send diameter, thread/connection, formation description, target depth, rig model, flushing method and quantity. Photos or geological reports improve configuration accuracy.
Hunan FengSu Drill Bit Co., Ltd. has 5 independent workshops and hundreds of employees. It has cooperated with China University of Geosciences and hired dozens of professors and doctors to research the ultra-wear-resistant material, with over 50 applications for patents. It's the manufacture of drill bit products which are efficient and strong enough to meet varied drilling requirements like natural gas, oil, coal exploration, geological exploration, and water wells. Certainly, our products will work perfectly under all kinds of rock environments. Adhering to the concept of unremitting technological innovation, strict quality control, and guaranteeing the reliability and professionalism in the products that we offer.
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