Using FS PDC 4th-Generation Spiral Core Bit in Concrete + Granite Formation
Project Overview
Feed pressure: 17 MPa
Location: Dongkou Reservoir, Shaoyang, Hunan Province, China
Application: Grouting hole drilling on external platform of a dam
Geology: Mixed formation of concrete and granite
Equipment: 45kW full-hydraulic drilling rig
Inclined drilling at 30° angle
Minimum spindle speed: 600 RPM
🔩 Product Used
- Model: FS PDC Spiral Core Bit – 4th Generation (75# B13)
- Designed for: Medium to hard formations including concrete and granite
- Features:
- Spiral body for smooth cuttings removal
- Optimized PDC cutter arrangement
- Stable cutting, reduced vibration, extended service life
🚧 Performance on Site
- Shift Schedule: Dual-shift operation (day & night)
- Daily Footage: ~100 meters per day
- Penetration Rate: 5–6 meters per hour on average
- Bit Lifespan: 20–40 meters per bit, depending on rock strength
💬 Customer Feedback
Mr. Wang Dingye, site supervisor, shared that previous bits (including electroplated diamond bits from other suppliers) were inefficient under such tough formations. After switching to the FS PDC 4th-generation spiral core bit, drilling efficiency significantly improved with much less downtime due to bit changes.
“With two shifts, we can drill nearly 100 meters a day. A single bit lasts up to 40 meters. It’s currently the best solution we’ve tested.”
The customer has placed multiple repeat orders and requested us to keep stock ready for fast dispatch.
✅ Results & Benefits
- Excellent adaptability in mixed formations (concrete + granite)
- Lower bit consumption, higher drilling efficiency
- Field-proven stability under high-power rigs and inclined drilling
- Strong customer retention and ongoing orders
📸 Media Display
▶️ Video Demonstration
🖼️ Image Gallery
Use the reported settings in context
This report identifies a 75# B13 spiral core bit and a particular reservoir drilling setup. Its rotation, feed-pressure, penetration and bit-life figures describe that project and should be assessed with the stated equipment and conditions.
Discuss a similar sampling assembly
Provide the formation, hole inclination, hole and core dimensions, barrel, connection, rig and flushing arrangement. Compare the core-bit family and use the ordering checklist. Catalogue examples are related configurations, not a confirmed identification of the bit in this project.