In these uncertain times, it’s more important than ever to plan for the future.

1st Line Defence have always been keen to invest in the latest technology and equipment available, to meet the ever increasing requirements of our clients. It’s also imperative that our teams have the best tools available to be as efficient, flexible and productive as possible on-site.

We’re delighted to announce that we have just taken delivery of our sixth Intrusive UXO Magnetometer Survey Rig. This HYSON 200 kN on Midi CPT-Crawler is a welcome addition to our current fleet and was custom-built for us by specialists A.P. van den Berg in the Netherlands.

The smaller tracks and size of this Magnetometer Rig make it highly adaptable and easy to transport. Its mere 1700mm width makes access to even the most complicated projects, a breeze.

The technical credentials of the crawler are impressive too. As a brand new build the Magnetometer Rig’s engine is highly efficient, quiet and easy to maintain. It’s also equipped with a 200kN penetrometer, which is mounted on an undercarriage with rubber tracks. Weighing in at just 7,000kg its light and manoeuvrable, but still packs a punch with huge pushing force.

Our latest investment has already joined its bigger brothers and is out and about earning its trade on a site in Central London, so keep an eye out for it on a site near you!

If you have any questions about Intrusive UXO Surveys or UXO Risk Assessments or mitigation in general, contact one of our friendly Sales Team on +44 (0) 1992 245020 or We’re always happy to help and provide guidance for your current or future site projects – no matter how big or small.

Achilles BuildingConfidence Audited Member of the Association of Geotechnical and Geoenvironmental Specialists British Safety Council Member CHAS Accredited Contractor Constructionline Gold Member ROSPA Member British Assessment Bureau ISO 9001 Certified British Assessment Bureau ISO 14001 Certified British Assessment Bureau ISO 45001 Certified SafeContractor Approved Member of the Armed Forces Covenant