All ingot metallurgical materials can be produced as powder. Shape, size and distribution of the powder particles are selected based on the specifications of the filter to be produced. Besides permeability, grade efficiency and mechanical strength, the corrosion resistance often is of prime importance for the field application.
SIKA-R...IS elements are manufactured in a wide variety of materials depending on the requirement. The most popular materials are stainless steel alloys as well as Titanium, Monel, Inconel, Hastelloy and other special materials
SIKA-R...IS filter elements are produced by cold isostatic pressing. For the compaction process the metal powder is filled into the compacting tool which is made of a solid steel core and oversized outer rubber sleeve. By sealing this assembly and immersing it in a liquid inside a vessel that then is pressurized, a pressed part will be obtained. Most importantly, this part will have uniform porosity with homogeneous, physical characteristics and properties over the total part. This processing method allows the manufacture of seamless filter elements up to 1500 mm length and 320 mm diameter with various wall thicknesses.