Orton Cones
Orton Mini Pyrometric Cones
Small Cones are commonly used in the Kiln-Sitter®. The tapered shape allows some flexibility to adjust shut-off by placing the thinner or thicker portion of the cone under the sensing rod.
Small Cones can also be used on the kiln shelf as miniature witness cones when space is limited.
Cone Number
60°C
100°C
150°C
018
712
722
732
017
736
748
761
016
769
782
794
015
788
802
816
014
807
822
836
013
837
848
859
012
858
869
880
011
873
883
892
010
903
913
920
09
917
922
928
08
942
948
954
07
973
979
985
06
995
1002
1011
05
1030
1038
1046
04
1060
1065
1070
03
1086
1093
1101
02
1101
1110
1120
01
1117
1127
1137
1
1136
1147
1154
2
1142
1152
1162
3
1152
1160
1168
4
1160
1170
1181
5
1186
1207
1218
6
1220
1230
1241
7
1237
1246
1255
8
1247
1259
1270
9
1260
1270
1280
10
1282
1293
1303
11
1293
1303
1312
12
1296
1306
1326
from £0.10 inc VAT
Orton Standard Pyrometric Cones
Pyrometric cones are slender pyramids made from about 100 carefully controlled compositions. Each cone number is unique in measuring temperature within a small temperature range (less than 30°C). Cones measure the amount of heat absorbed. As the cone nears its maturing range, it softens and the tip begins to bend, drawn down by the influence of gravity.
Standard cone heating rate °C per...
from £4.04 inc VAT