Large Orton cones are used as witness cones in kiln. They require a cone support. To be precise in kiln temperature control use one cone number ie cone 4 below required cone temperature cone 5 and one cone above ie cone 6 usually in the mid kiln level. Coned will bend gradually upon reaching nominated temperature. Do not reuse cone or in event of firing interruption in electricity supply, replace with a new cone. To determine kiln temperature in various levels place a cone each in mid level, top level and bottom level visible through a peep hole usually in front of a kiln plug.
Cone monitor kiln temperature to ensure clay body and glazes are fired to maturity. Knife makers too can know hardening, annealing and tempering temperature in oven and furnaces.
| CODE | Description | Price |
| 88102138 | Orton Large Pyrometric Cone 05 – 50pcs | RM 168.00 |
| 88102139 | Orton Large Pyrometric Cone 06 – 50pcs | RM 168.00 |
| 88102142 | Orton Large Pyrometric Cone 015 – 50pcs | RM 168.00 |
| 88102143 | Orton Large Pyrometric Cone 018 – 50pcs | RM 168.00 |
| 88102145 | Orton Large Pyrometric Cone 5 – 50pcs | RM 168.00 |
| 88102146 | Orton Large Pyrometric Cone 6 – 50pcs | RM 168.00 |
| 88102148 | Orton Large Pyrometric Cone 7 – 50pcs | RM 168.00 |
| 88102149 | Orton Large Pyrometric Cone 8 – 50pcs | RM 168.00 |
| 88102150 | Orton Large Pyrometric Cone 10 – 50pcs | RM 168.00 |
