Overview
The latch is the heart of the wireline retrieval system. Our latches undergo rigorous quality control to ensure they snap into place smoothly and hold firmly under extreme tensile loads. Whether you are conducting deep-hole mineral exploration or geotechnical investigation, this latch minimizes the risk of unlatching downhole, protecting your valuable core samples and tooling strings.
Technical Specifications
| Feature / Parameter | Specification Details |
| Material | Premium AISI 4140 / 4340 High-Strength Alloy Steel |
| Heat Treatment | Fully quenched and tempered; Surface hardened for maximum durability |
| Hardness Range | HRC 42 - 48 (Optimized for toughness and wear resistance) |
| Size Availability | Standard Wireline Sizes: BQ, NQ, HQ, PQ (including NQ3, HQ3, PQ3) |
| Surface Finish | Anti-rust oiled, black oxide, or phosphated for corrosion protection |
| Application | Wireline Head Assembly / Overshot System in Diamond Core Drilling |
Key Features & Advantages
Robust Mechanical Design: The optimized spring-loaded geometry allows for quick deployment and reliable retraction when releasing the inner tube.
Fatigue Resistant: Engineered to endure millions of high-frequency vibrations and impacts during the drilling cycle without losing structural integrity.
Strict Tolerance Control: Every batch is CNC-machined within microns to ensure perfect fitment with standard latch bodies and landing rings, preventing premature wear on mating parts.
Field-Proven Reliability: Trusted by drilling contractors worldwide in challenging geological conditions, from soft broken ground to ultra-hard granite.
Ordering Information
To help us provide an accurate quote quickly, please specify:
Size System: (e.g., NQ, HQ, PQ)
Standard or Underground: Standard wireline or pump-in (underground) configuration.
Quantity: Bulk ordering discounts are available for international distributors and drilling contractors.
