Johnson Screen are made from V shaped profile wire, which is spirally wound around a cage of longitudinal support rods. Each intersecting point of these wires is fusion welded, with an unique welding process. This spacing gives passage for water to enter. The entire process is completed on fully computerized machines. The pitch of winding gives different spacing between two adjacent turns of wire. 

Johnson screen have the features of great strength, precision, long service life and a wide range of applications in the field of process and engineering such as waste water treatment, sugar juice filtration, crude oil and natural gas production and vessel internals solving problems of solid / liquid and solid / gas separation, filtration of oils, greases, water, fuels, paints, food products, liquid cooling agents, and chemicals etc.

No.	(mm)TYPE	OD (mm)	ID(mm)	Support wire Number	Filter direction
1	SRD25.4	25.4	18.6	12	FOTI
2	SRD 33	33	24	8	FOTI
3	SRD 37	37	28	8	FOTI
4	SRD 40	40	31	8/10	FOTI/FITO
5	SRD 45	45	36	10/12	FOTI/FITO
6	SRD 48	48	38	12	FOTI/FITO
7	SRD 60	60	51	12	FOTI/FITO
8	SRD 70	70	61	12/18	FOTI/FITO
9	SRD 85	85	76	18	FOTI/FITO
10	SRD 110	110	101	24	FOTI/FITO
11	SRD120	120	111	24	FOTI/FITO

Specification (wedge wire):	Width(mm): 1.50 1.80 2.30 3.00 3.30 3.70  Height(mm): 2.20 2.50 2.70 3.60 4.30 4.70 5.60 6.30 7.00
Specification (support rod):	Width(mm): 2.30 3.00 3.30 3.70  Height(mm): 2.70 3.60 4.70 5.60 6.30 Round: From 2.50mm to 6.0mm
Note: other specifications available as per request from tianzhiwo Factory
Slot size:	above 0.01mm
Material:	stainless steel (304,316 etc.)
Length:	less than 1500mm
Diameter	25.4mm-150mm

Coal/coke washeries - Seperationn Machine component / Wedge wire screen Filter mesh
Sugar mill- Seperation or  Filtration component
Chemical and petrochemical- Hydro treating Filtering element / Filtration component
Soda ash plants- Seperation or Filtration component
Fertilizer plants- Seperation or Filtration component
Cement plants- Seperation or Filtration component
Solvent extraction plant- Filtering element / Filtration component
Effluent/water treatment plants - Filtering element / Filtration component
Stone quarrys - Seperation or Filtration component
Paper and pulp industries - Seperation or Filtration component/ Self-cleaning Single Filter
Food processing industries- Seperation or Filtration component / Back flushing cleaning Filter
Beer & Beverage Industries -Filtering Element or FitrationElement
 
Henan Tianzhiwo Machinery Co.,Ltd
Henan Tianzhiwo Machinery Co.,Ltd provides value-added high precison Wedge wire screen products and services to global clients in various industries. We learned advanced production experiences , our company has advanced production technology and innovative design. We can provide global client first- class filtration products. Until now, tianzhiwo is the only one in China who can manufacture wedge wire screen pipe perfect round with smooth surface . Our products quality is far higher than that is from similar suppliers in china. We are expert at making small diameter wedge wire screen. And we concentrate on the products quality . The first-class quality and service is our constant commitment. Our aim is to be the leader in the filtration industry in China.