The PowderProof® conveyor spiral is a flexible accessory for the PowderProof® system, enabling efficient and accurate sampling of powders and granules. The robust and seal-less design of the spiral conveyor makes it versatile, easy to clean and ensures reliable transport of sample material. The PowderProof® conveyor spiral is a flexible accessory for the PowderProof® system, enabling efficient and accurate sampling of powders and granules. The robust and seal-less design of the spiral conveyor makes it versatile, easy to clean and ensures reliable transport of sample material.