Wire Cloths for Vibrating Screens

Type of Wire Cloth

The best-suited type of wire cloth should be selected from those listed below, depending on the particular size of particles, workload, type of apparatus used, etc.

Type of Wire Cloth Materials Remarks
Square Openings Plain Weave Stainless steel,
hard steel,
iron, etc.
For mesh and wire diameters,
please refer to pages of particular products.
Intermediate Crimp
Lock Crimp
Flat Top Crimp
Slotted Openings Oblong Openings
Triple Shoot

 

Selecting a Wire Cloth

A.Material of Wire
Such material should be selected that has a high tensile strength sufficient to resist a secondary breakage due to vibration and wearing due to abrasion with objects to be sifted, and a corrosion resistance should also be taken into consideration.

Materials Code Tensile Strength kg/mm2
Stainless Steel SUS-316 1.0mmΦ=60~75 5.0mmΦ=60~70
SUS-304 2.0mmΦ=65~80 5.0mmΦ=60~70
SUS-430 3.0mmΦ=50~60 5.0mmΦ=60~70
SUS-410 4.0mmΦ=50~60 5.0mmΦ=60~70
High Manganese Steel MM-2, Daido Steel 5.0mmΦ=90~100 8.0mmΦ=100~110
Hard Steel SWRH-4A 5.0mmΦ=140~165 8.0mmΦ=125~150
SWRH-2 4.0mmΦ=115~135 5.0mmΦ=110~135
SWRH-5A 3.0mmΦ=155~170 5.0mmΦ=160~180
Piano Wire SWRS-2A 2.0mmΦ=170~205 5.0mmΦ=170~190
Mild Steel SWRM-2 1.0mmΦ=30~50 5.0mmΦ=30~50

●Carbon 60 corresponds to SWRH-4A

B.Weaving Style

  1. Coarse to medium-size particles: Intermediate Crimp, Flat Top Crimp
  2. Small to fine particles: Plain Weave, Twilled Weave, Slotted Openings
  3. Sticky and/or cloggy objects: Slotted Openings, Triple Shoot
  4. Very wet objects: Wedge Wire

3.Size of Vibrating Screen

W=Width of screen
L=Length of screen
HL=Length of hook
HE=Length of portion without hook
(Overlap of wire cloths is generally about 20 mm.)

 

4.Location of Hooks

Such wire cloths with oblong openings as Slotted Openings screens can be provided in two different types, as shown in the figures, depending on the orientation of openings and location of hooks.

 

5.Type of Hook

Wire cloths used in vibrating screens are provided in each side with a hook for the purpose of :

  1. facilitating attachment and removal;
  2. reinforcing edges of the screen;
  3. tensioning the screen to prevent “sagging”.

■Five different specifications shown below are available according to wire diameters.

No.1 No.2 No.3 No.4 No.5

 

Specification Hook Type No.1
No.1 Click on image to enlarge.
Structure of Hook
Hook Type No.1
Dimensions V1 V2 α R t1 t2
≥35 60° ≥6
Remarks For wires diameters of 6.0 mm or more.

 

Specification Hook Type No.2
No.2 Click on image to enlarge.
Hook Type
Dimensions V1 V2 α R t1 t2
25 25 60° 6 3
Remarks For wire diameters of 4.0 mm or more and less than 6.0 mm with a metal sheet (t1).

 

Specification Hook Type No.3
No.3 Click on image to enlarge.
Hook Type
Dimensions V1 V2 α R t1 t2
25 30 45° 4 1~1.2
Remarks For wire diameters of 1.0 mm or more and less than 4.0 mm with a metal sheet (t1).

 

Specification Hook Type No.4
No.4 Click on image to enlarge.
Hook Type
Dimensions V1 V2 α R t1 t2
25 35 45° 3 1 1
Remarks For wire diameters of 0.5 mm or more and less than 1.0mm with a metal sheet (t1) and a rubber sheet (t2).

 

Specification Hook Type No.5
No.5 Click on image to enlarge.
Hook Type
Hook Type
Dimensions V1 V2 α R t1 t2
25 35 45° 3 1 1
Remarks For wire diameter of less than 0.5 mm with a metal sheet (t1) and a rubber sheet (t2).

Above listed are standard products, and rivets with patches are also available.

6.Screen Installation Tips

A.Proper tensioning
Improper tensioning will cause secondary vibration of the screen that often leads to breakage of the screen.

B.Tensioning method of the screen
Use of hooks for proper tensioning of the screen is recommended. Note that stretching the screen flat significantly affects its service life.

C.Proper arc of support bars
Support bars must be arranged in a proper arc shape. Otherwise, tensioning of the screen comes to be uneven, leading to breakage of the screen.

D.Constant tensioning
During operation, as the screen may become loose due to stretching and loosening of the hooks, it is important to check the screen, and retighten the hooks.

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