It mainly includes two types, one is woven mesh type and other is perforated metal type.

Perforated metal

Perforated metal is made from sheet & plate that has been punched with holes.  They are typically used to remove larger particles in the range of 1.0 mm to 3.0 mm in size.  Perforated screens are used to remove general debris such as pipe scale and rust.

Woven mesh

Woven mesh is made from wire formed into a grid arrangement. They are typically used to remove smaller particles as the wire used can be very fine. Woven mesh can remove particle sizes down to 40 micron, however ‘standard’ mesh screens typically remove particle sizes in the range of 0.4 mm to 1.0 mm.   Woven mesh screens are used to remove specific debris that is particular to your process.  A mesh screen can be strengthened by layering it together with a perforated screen.