Based on the principle of the Archimedes' screw, the device allows a representative sample to be taken at each stage of penetration of the probe into the material.

Applications - Granules, powders.

Sites of use - Pharmaceutical, chemical, food, feed and dairy industries.

Construction - The devices are fitted with a screw auger mechanism which can be easily removed for easy cleaning. All parts, including the main bearing, are made from AISI 304 grade stainless steel. A 9.6 v drill motor, powered by rechargeable batteries, drives the sampling probe making the system completely portable.

Method of use - 1) Insert driver unit fully into boring tube, ensuring slots are correctly located down each side. Push the stainless steel retaining clip into the slots until it is in position. 2) Fix a sampling bag onto the sample collecting tube. 3) Horizontal sampling from paper sacks. Pierce the sack wall with the tip of the boring tube. Sampling can then start by triggering the driver unit. Care should be taken that the boring tube is clear ofany paper as this can be drawn into the boring tube and choke it. Vertical sampling from bulk containers, tankers, etc. When sampling bulk from above, it is important that the boring tube is inserted at an angle to ensure that the sample collection tube is inserted at an angle to ensure that the sample collection tube is in the vertical plane. If sampling is attempted with the boring tube held vertically the unit could choke on the sample material. 4) When sufficient sample is collected the boring tube can be emptied by by putting the driver into reverse. 5) After sampling the unit can be cleaned by undoing the boring tube from the driver and removing the spiral by the driver end of the boring tube on a wooden support.