DYNAMIC PROBING CONES
Probe cones are used for Dynamic Probing which determines the resistance of soils in-situ in accordance with BS 1377 Part 9.
Probe cones can be sacrificial or retained and are available in Bright Mild Steel.
Two types of Dynamic Probing Apparatus |
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| Part | Heavy (DPH) | Super Heavy(DPSH) |
| Drive Weight (kg) | 50 ± 0.5 | 63.5 ± 0.5 |
| Drop Height (mm) | 500 ± 10 | 750 ± 20 |
| Nom. Cone Area (cm2) | 15 | 20 |
| Cone Diameter (mm) | 43.7 ± 0.3 | 50.5 ± 0.5 |
| Cone Mantle Length (mm) | 43.7 ± 1 | 50.5 ± 2 |
| Cone Tip Length (mm) | 21.9 ± 0.1 | 55.3 ± 0.4 |
| Drive Rod Diameter (mm) | 35 | 35 |
| Drive Rod Mass (kg/m) | 6 | 8 |
| All cones have a 90° point, and may be sacrificial (without thread), or retained (with thread). | ||
High-Precision Dynamic Probing Cones
Heavy-Duty Sacrificial and Removable Cones for Geotechnical Site Investigations
Accurate soil strength profiling and compaction testing rely on the unyielding geometry of your drilling consumables. At TT Precision Engineering, we manufacture a premium range of Dynamic Probing Cones engineered to withstand intense, repetitive impact loads across the most abrasive sub-surface strata.
Machined in our UK facility from high-grade, heat-treated tensile steel, our probing cones are built to strictly conform to BS EN ISO 22476-2 standards for Dynamic Probing Light (DPL), Medium (DPM), and Super Heavy (DPSH) configurations. Whether you require sacrificial cones for deep depth profiling or robust, reusable cones, we deliver the structural durability your field operations demand.
Engineered for Extreme Impact & Longevity
In-situ penetration testing subjects equipment to immense stress. Our dynamic probing consumables are engineered to eliminate the most common on-site failure points:
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Strict Dimensional Tolerance: Every cone is precision CNC-machined to exact apex angles (typically 60°) and nominal base diameters, ensuring your dynamic penetrometer blows-per-increment counts remain perfectly accurate.
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Advanced Wear Resistance: Utilising specialized metallurgy and hardening processes, our cones resist rapid tip blunting and shoulder rounding, even when driving through dense gravels and stony fills.
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Seamless Thread Matching: Engineered with precise internal or external thread alignments to fit seamlessly onto your standard dynamic probing rods, reducing thread binding and preventing down-hole detachment.
Our Dynamic Probing Product Range
We supply a comprehensive selection of probing tips tailored to your specific rig and survey requirements:
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Sacrificial Probing Cones: Cost-effective, high-turnover cones designed to be left down-hole once target depth or refusal is reached, saving critical time on high-volume environmental and structural site surveys.
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Removable / Reusable Probing Cones: Premium-hardened steel cones designed for clean extraction and multi-use operations in cohesive or non-binding soil profiles.
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Custom Dimensions: Need a specific thread pitch or alternative cone diameter? As a dedicated precision engineering machine shop, we can manufacture bespoke probing tips directly from your technical drawings or schematics.