It is a pleasure to receive from Luis Spitz these slides on refining elements for plodders and post them. Fabio Binacchi for Binacchi Soap Forum

2. Refining Elements for Plodders and Applications
PERFORATED
(Round Hole)
MICRO-EXPANDED
(Metal)
wTranslucent Toilet and
Laundry Soaps
----------------------------
wTranslucent Soap Base
for Toilet Soaps
SCREEN
(Wire Mesh)
Opaque and Translucent Toilet Soaps

3. Wire Mesh Mesh Sreen Mesh Number
Mesh is the number of opening for each linear inch (25.4 mm)
measured from the center of each wire in each direction.
i.e. 30 mesh has 30 openings north-south and east-west direction.
MESH NUMBER - number of openings per
lineal inch (per 25.4 mm)
WIDTH OF OPENING - L - the size of clear
opening between parallel wires.
WIRE DIAMETER – Ø (mm)
OPEN AREA – A (mm2)

4. US Mesh
Number
Wire
Diameter
inch / mm
Width of
Opening
inch / mm
Open
Area
(%)
10
0.047 / 1.19
0.032 / 0.81
0.025 / 0.64
0.059 / 1.50
0.068 / 1.73
0.075 / 1.91
34.8
46.2
56.3
20
0.020 / 0.508
0.018 / 0.320
0.016 / 0.406
0.030 / 0.76
0.032 / 0.81
0.034 / 0.86
36.0
41.0
46.2
30
0.015 / 0.381
0.013 / 0.330
0.012 / 0.305
0.018 / 0.47
0.020 / 0.52
0.021 / 0.54
30.1
37.1
40.8
50
0.008 / 0.203
0.009 / 0.229
0.0075 / 0.191
0.012 / 0.31
0.011 / 0.28
0.0125 / 0.32
36.0
30.3
39.1
Wire Mesh Screens

8. Effect of Wire Diameter on the Open Area
US Mesh 10
Wire Diameter: 0.025 inch (0.650 mm)
Open Area: 56 %
-------------------------
Wire Diameter: 0.032 inch (0.81 mm)
Open Area: 46.2 %
-------------------------
Wire Diameter 0.047 inch (1.19 mm)
Open Area: 34.8 %)
-------------------------

9. Microexpanded Metals
Type R x DC
(mm)
Width (v)
(mm)
Open Area
(%)
R1 1.0 x 0.75 0.20 36
R2 2.0 x 1.3 0.30 40
R4 4.0 x 2.2 0.50 44
R5 5.0 x 2.8 0.50 52
LONG DIAGONAL – R (mm)
SHORT DIAGONAL – DC
WIDTH – v (mm)
OPEN AREA – (%)
R4

10. Perforated Plates with Round Holes
Round Hole
Diameter
(mm)
Holes
per cm2
Width
(mm)
Open
Area
(%)
3.0 5 1.0 36
2.0 15 1.0 45
1.5 20 1.0 37
1.0 27 1.0 28
0.8 52 0.5 28
0.5 148 0.5 30
2
mm
1
mm
0.5
mm