The cycloneic desanding separator for water injection is a liquid-solid separation equipment. It uses the cyclone principle to separate solids, including sediment, rock debris, metal chips, scale, and product crystals, from fluids (liquids, gases, or gases-liquid mixture). Combined with SJPEE’s unique patented technologies with a series of models of liner (, the filter element), which is made of high-tech ceramic wear-resistant (or called highly anti-erosion) materials or polymer wear-resistant materials or metal materials. High-efficiency solid particle separation or classification equipment ( can be down to 2 microns of 98%) can be designed and manufactured according to different working conditions, different fields and user requirements.