Percussive window sampling can also be carried out using a portable jack-hammer system. The sample tubes are driven into the ground using a hydraulic hammer and are then retrieved with the use of a compact mechanical jack.
This system is ideal for use in sites with restricted access where conventional window sample rigs are unable to be used. Extra-long hydraulic hoses can be provided to allow the power pack to be located away from the working area; this could be used to alleviate the problem of exhaust fumes when working in confined spaces.