Head Assembly
Head assemblies connect the drill rod string to the core barrel and enable smooth rotation, fluid circulation, and efficient wireline core recovery during drilling operations.
Role in the Core Drilling System
The head assembly is a critical interface component within a core drilling system. Installed between the drill rods and the core barrel, it transmits rotational force and drilling fluid while enabling engagement with the overshot during wireline operations. Proper head assembly selection ensures reliable operation, reduced downtime, and consistent core recovery.
Product Description
Spenta Engineers manufactures head assemblies designed for dependable performance in mineral exploration and geotechnical drilling. Each head assembly is precision-engineered to provide secure connections, smooth rotation, and accurate alignment with compatible drill rods, core barrels, and overshot systems.
Standard Sizes, Lengths & Manufacturing
Head assemblies are manufactured in standard sizes including AQ, BQ, NQ, HQ, and PQ. Components are produced from high-strength alloy steel using precision machining processes. Controlled heat treatment is applied to enhance wear resistance, structural integrity, and service life under continuous drilling conditions.
Standard Specifications
| Standard Sizes | AQ, BQ, NQ, HQ, PQ |
| Connection Type | Threaded |
| Rotation | Free rotation for wireline operations |
| Material | High-strength alloy steel |
| Heat Treatment | Controlled heat treatment |
| Typical Application | Wireline core drilling systems |
Selection Guidance
- Select size based on corresponding drill rod and core barrel size
- Ensure compatibility with overshot system for wireline operations
- Consider drilling depth and operational conditions for optimal performance
Key Advantages
- Enables efficient wireline core retrieval
- Provides secure connection between drill rods and core barrel
- Precision-machined for smooth rotation and alignment
- Designed for reliable operation in demanding drilling environments
System Compatibility
Head assemblies must be compatible with the selected drill rods, core barrel, and overshot system. All head assemblies supplied by Spenta Engineers are designed to integrate seamlessly within standard core drilling systems of corresponding sizes.
Request a Quote for Head Assemblies
Share your drilling requirements and system configuration, and our technical team will assist you in selecting the appropriate head assembly for your application.