Since 1914 when F.Raschig invented this type of ring for tower packing, random tower pickings have been developed extensively. The T.C.I R-ring is now used in many applications, but particularly in supporting catalyst beds.
Metal T.C.I -R-rings are available in a wide range of carbon and stainless steels.and ceramic, PTFE, PP, etc.
Metal Raschig rings’ characteristics
Size
（mm）
Bulk density
（kg/m3）
Number
per m3
Surface area
（m2/m3）
Free volume
15×15×0.3
379
230000
350
95
25×25×0.4
318
51000
216
96
25×25×0.5
400
51000
220
95
35×35×0.8
430
19000
150
93
50×50×0.5
203
6500
106
97.4
50×50×0.7
285
6500
108
96.4
50×50×0.8
325
7000
109
95
76×76×0.8
212
1830
69
97.3
80×80×1.2
300
1600
65
96
90×90×1.0
236
1160
62
97
All of the given weights refer to the stainless（AISI304）
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