SOIL TESTING EQUIPMENT MANUFACTURING
At T.T. Precision Engineering Limited, we specialise in the design, manufacture and supply of high-quality soil testing equipment for use in geotechnical, civil engineering and construction environments. With many years of precision engineering experience behind us, we produce a wide range of instruments and tools that support professional soil investigation and field testing applications.
As established precision engineers based in South Woodham Ferrers, Essex, our team has extensive expertise in machining and fabrication across materials such as stainless steel, mild steel, aluminium, brass and engineered plastics. This capability allows us not only to stock and supply quality soil testing instruments, but also to reverse engineer and re-manufacture bespoke or hard-to-find components to meet specific project or equipment requirements. (Welcome to TT Precision Engineering)
Our soil testing equipment range includes robust field-ready devices such as:
Dynamic Cone Penetrometers (DCP) – designed for rapid in-situ measurement of the structural properties of road pavements and unbound materials, helping engineers assess subgrade and soil strength. (Welcome to TT Precision Engineering)
Dynamic Probe Rods and Cones – precision-machined rods and probe cones for dynamic probing in accordance with recognised standards such as BS 1377, delivering reliable resistance measurements in soil testing. (Welcome to TT Precision Engineering)
Hand Auger Kits – including options with both clip-on connections and screw-thread fittings, built for efficient soil sampling at depths up to 8–10 m with durable, easy-to-use assembly. (Welcome to TT Precision Engineering)
Mackintosh Probes – lightweight, portable hand-operated penetrometers ideal for testing soft or loose soils quickly and cost-effectively to depths of up to 16 m. (Welcome to TT Precision Engineering)
Rod Lifting Tools – engineered accessories that simplify the extraction of probe rods from the ground, improving usability and reducing wear on equipment. (Welcome to TT Precision Engineering)
Every soil testing instrument we manufacture is crafted with precision — utilising advanced CNC machining and quality control processes — ensuring durability, accuracy and long service life even in demanding field conditions. Whether for site investigation, research applications, or specialised client requirements, our team can work with you to develop tailored solutions that meet recognised performance standards and project needs. (Welcome to TT Precision Engineering)
If you have specific soil testing tools or instruments that require replacement, custom variants or full manufacturing support, please contact us to discuss your requirements in detail.
DYNAMIC CONE PENETROMETER
The DCP (Dynamic Cone Penetrometer) is an instrument designed for the rapid insitu measurement of the structural properties of existing road pavements constructed with unbound materials.
DYNAMIC PROBE EQUIPMENT
Dynamic Probe Rods are manufactured from heat-treated alloy steel, with graduations marked every 100mm, along the 1 meter length.
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.
HAND AUGER KIT/CLIP-ON CONNECTION
A comprehensive set for augering all types of soil down to a depth of 8-10 metres. These kits are specifically designed for use in soil research studies and are made to a high standard to ensure a long service life.
HAND AUGER KIT/SCREW THREAD CONNECTION
Screw thread connection: This connection is based on male and female thread on the parts to be coupled. The use of tapered threads for connection allows you to simply hand tighten the connection to create a rigid construction.
MACKINTOSH PROBE
ROD LIFTING TOOL
The Rod Lifting Tool can be used on both the Dynamic Cone Penetrometer and the Mackintosh Probe. The tool is used to pull rods out of the soil. Much easier than using mole-grips etc…
More on our Soil Testing Equipment product range and services…
Dynamic Cone Penetrometer (DCP)
Our Dynamic Cone Penetrometers are designed for rapid, in-situ assessment of soil strength and pavement layer properties. Commonly used for road construction and subgrade evaluation, DCP testing provides a fast and cost-effective method of determining bearing capacity.
Key features:
- Precision-machined components
- Robust construction for repeated field use
- Suitable for pavement and unbound material testing
- Manufactured to recognised testing standards
Dynamic Probe Rods & Cones
We manufacture a full range of dynamic probing rods and cone assemblies, suitable for light, medium, and heavy dynamic probing applications.
Key features:
- High-strength steel construction
- Accurate cone geometry for consistent penetration results
- Compatible with standard dynamic probing systems
- Available in various sizes and configurations
Mackintosh Probe Equipment
Our Mackintosh probes are lightweight, portable testing systems ideal for rapid soil investigation in soft or loose ground conditions.
Key features:
- Hand-operated and easy to transport
- Suitable for depths of up to approximately 16 metres
- Ideal for preliminary site investigations
- Reliable performance in low-resistance soils
Hand Auger Kits
We supply hand auger kits designed for efficient soil sampling and inspection across a wide range of ground conditions.
Key features:
- Clip-on or threaded rod systems available
- Extendable depth options (typically up to 8–10 metres)
- Durable auger heads for repeated use
- Suitable for environmental and geotechnical sampling
Rod Lifting Tools & Accessories
Our rod lifting tools are engineered to assist with the safe and efficient extraction of probe rods during soil testing operations.
Key features:
- Reduces manual effort and equipment strain
- Precision-engineered for compatibility with probe rods
- Improves safety and workflow efficiency on site
Bespoke Soil Testing Equipment & Components
In addition to our standard product range, T.T. Precision Engineering Limited offers custom manufacturing and reverse engineering services for soil testing equipment and components.
We can:
- Reproduce discontinued or obsolete parts
- Manufacture bespoke tools to client specifications
- Modify existing equipment for specialist applications
Our precision engineering capabilities allow us to work with a variety of materials including mild steel, stainless steel, aluminium, brass, and engineering plastics.
Why Choose T.T. Precision Engineering Limited?
- UK-based precision engineering manufacturer
- High-quality CNC machining and fabrication
- Experience supplying geotechnical and civil engineering sectors
- Reliable, long-lasting equipment for demanding site conditions
- Bespoke manufacturing available
Enquire About Soil Testing Equipment
If you require soil testing equipment, replacement components, or a custom-engineered solution, please contact us to discuss your requirements.