On some sites, access is too restricted even for the mini rig. In this situation Dunelm can provide a hand-held window sampling system that enables samples to be recovered using the same tubes as the mini rig.
This system comprises a hand-held hydraulic breaker with a separate power pack and has been used successfully on slopes of up to 25 degrees. On steep slopes a small horizontal platform is excavated first using hand tools, and fall arrest equipment can be provided if required to ensure the safety of the crew. Diesel-engined hydraulic packs can be supplied for sites where the normal petrol-engined plant is not safe.