Your cart

Your cart is empty

Self-Supporting Cones (Orton Pyrometric Cones)

Orton Self-Supporting Cones

(Orton Pyrometric Cones)

Mix and match full boxes for an Automatic 10% discount!
Easy shipping include prices!

The Large and Self-supporting cones are used to measure temperature uniformity and/or if there was sufficient heatwork done to mature the ware. Cones indicate whether the ware received an adequate amount of heatwork to properly mature the clay or glaze.

A properly fired cone will bend over with the tip of the cone almost touching the shelf. After firing a kiln, a simple glance at the cone can tell if the firing was successful. The small and bar cones are mainly used in the kiln shut-off device called the Kiln-sitter. This is a mechanical device that shuts off the kiln when the temperature inside is sufficient to cause the cone to deform under the weight of the Kiln-sitter rod. The only true measurement of heatwork is from a Large or Self-supporting cone placed on the shelf next to the ware.

34 Results

Orton Cones: Self-Supporting Cones - 6

Orton Cones: Self-Supporting Cones - 6

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 5

Orton Cones: Self-Supporting Cones - 5

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 04

Orton Cones: Self-Supporting Cones - 04

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 7

Orton Cones: Self-Supporting Cones - 7

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 05

Orton Cones: Self-Supporting Cones - 05

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 06

Orton Cones: Self-Supporting Cones - 06

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 4

Orton Cones: Self-Supporting Cones - 4

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 03

Orton Cones: Self-Supporting Cones - 03

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 10

Orton Cones: Self-Supporting Cones - 10

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 07

Orton Cones: Self-Supporting Cones - 07

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 9

Orton Cones: Self-Supporting Cones - 9

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 8

Orton Cones: Self-Supporting Cones - 8

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 08

Orton Cones: Self-Supporting Cones - 08

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 11

Orton Cones: Self-Supporting Cones - 11

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 018

Orton Cones: Self-Supporting Cones - 018

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 019

Orton Cones: Self-Supporting Cones - 019

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 3

Orton Cones: Self-Supporting Cones - 3

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 020

Orton Cones: Self-Supporting Cones - 020

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 017

Orton Cones: Self-Supporting Cones - 017

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 1

Orton Cones: Self-Supporting Cones - 1

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 2

Orton Cones: Self-Supporting Cones - 2

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 02

Orton Cones: Self-Supporting Cones - 02

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 09

Orton Cones: Self-Supporting Cones - 09

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 010

Orton Cones: Self-Supporting Cones - 010

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 01

Orton Cones: Self-Supporting Cones - 01

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 021

Orton Cones: Self-Supporting Cones - 021

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 012

Orton Cones: Self-Supporting Cones - 012

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 022

Orton Cones: Self-Supporting Cones - 022

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 016

Orton Cones: Self-Supporting Cones - 016

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 015

Orton Cones: Self-Supporting Cones - 015

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 014

Orton Cones: Self-Supporting Cones - 014

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 011

Orton Cones: Self-Supporting Cones - 011

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 013

Orton Cones: Self-Supporting Cones - 013

$13.39

Unit price
per 

Orton Cones: Self-Supporting Cones - 12

Orton Cones: Self-Supporting Cones - 12

$13.39

Unit price
per 

OUR PROCESS

Natural Sheffield Clay is mined on our property from as seen at one of the open clay pits. The Sheffield Clay deposit is located in Sheffield, Massachusetts, on U.S. Route 7 in the Southwest corner of Berkshire County.