Tel: 01245 325868 | E-mail: sales@ttprecision.co.uk | Contact Us

Dynamic Probe Equipment

Dynamic probe rods are manufactured from heat-treated alloy steel, with graduations marked every 100mm along the 1 metre length.

The rod ends butt up fully against each other when driving, so the driving force is carried through the rod ends rather than the threads. This stops the threads getting damaged.

Spanner flats make the rods easy to connect and disconnect.

Rod sizes

  • 35mm rods – 1 metre and ½ metre lengths
  • 22mm rods – 1 metre and ½ metre lengths
Dynamic probe rods and equipment by TT Precision Engineering

Professional Dynamic Probe Equipment & Rig Accessories

Heavy-Duty, Reliable Site Investigation Systems Built for Severe Field Conditions

Safe, accurate geotechnical ground investigations depend on robust machinery that delivers consistent energy output drop after drop. At TT Precision Engineering Limited, we manufacture and supply high-specification Dynamic Probe Equipment engineered to streamline your in-situ soil penetration testing and compaction trials.

From complete dynamic probing kits to replacement components, our equipment is precision-engineered in our UK machine shop. It is designed for testing to BS EN ISO 22476-2, ensuring reliable data across light (DPL), medium (DPM), heavy (DPH) and super heavy (DPSH) dynamic probing.

Engineered for Mobility, Longevity, and Safety

Our dynamic probing rigs and system components are field-tested to withstand the violent, repetitive impacts inherent to soil mechanics testing, offering clear mechanical advantages:

  • Consistent Drop Mechanisms: Precision-machined trip-release systems and guide rods ensure an exact, frictionless weight drop height every time, maintaining the integrity of your blow-count results.

  • Compact & Highly Transportable: Our equipment profiles are optimised for fast deployment across remote, restricted-access tracks and tight residential sites without sacrificing structural stability.

  • Heavy-Wear Resilience: Built from high-tensile, fatigue-resistant steel, our drop weights, anvils, and guide bars resist structural warping, cracking, and premature wear in highly abrasive environments.

Our Complete Dynamic Probing Inventory

We provide a turnkey solution for your site investigation consumables and mechanical assemblies:

  • Probing Rig Assemblies: Complete, robust frame units equipped with precision guide rails and manual or automated lifting systems.

  • Guide Rods & Anvils: Impact-treated striking heads and aligned guide bars engineered to safely distribute energy straight down your drill string.

  • Drive Weights & Drop Hammers: Calibrated mass blocks designed for exact specification testing compliance across varying soil classifications.

  • Extraction Equipment: High-leverage mechanical or hydraulic rod jacks designed for clean, rapid extraction of stuck or deep probing strings without bending your rods.

Request an Equipment Specification Sheet or Talk to Our Chelmsford Technical Sales Team: 

Tel: 01245 325868