Kiln Support
  
Paragon HomeKiln ProductsWhere To Buy KilnsKiln SupportAbout ParagonKiln Resellers and Dealers
Search Menu

Kiln Pointers

Firing to a Pyrometric Cone in a Jewelry or Glass Kiln

I recently received this email from Delores Highsmith: “I bought a digital kiln that uses degrees, ramp speed and time. I use it for jewelry making and bead annealing but would also like to fire small ceramic pieces. “Since I don't come from a ceramics background, the pyrometric cones are a mystery to me, and when I talk to someone from a ceramics background about converting cone firing to degrees and times, they give me a blank look. Are there charts that convert cones to degrees and times for digital kilns?”

If, like Delores Highsmith, you specialize in jewelry or glass beads, you may enjoy making ceramic jewelry for a change. Clay and ceramic glazes are very inexpensive compared to silver and glass, and the results can be stunning. I have included cone-programming instructions at the end of this kiln pointer.

Cone-Fire mode is included with ceramic kiln digital controllers but usually not with glass and jewelry kiln controllers. But you can still fire to a pyrometric cone with a glass or jewelry kiln by programming the segments I’ve listed below. You will find the recommended cone number on the glaze or clay package, or you can get this information from your ceramic supplier.

The cones listed below go from the coolest to the hottest. As you can see, the cone numbering system is confusing. 022 is cooler than 10, yet 022 is a higher number. It helps to mentally replace the “0” with “-”. Most people find it easier to figure –22 rather than 022 as cooler than cone 10. (The coolest original cone was cone 1. Later, “0” was placed in front of cone numbers to designate cones cooler than cone 1.)

To fire faster or slower than the segments I’ve included here, change the rates by 10 – 20 percent. However, the rate for the last segment should always be 108 degrees F.

Do not attempt to fire a cone that is hotter than the maximum temperature listed on your kiln’s electrical data plate. (You will find the plate on the side of the switch box or on the back of the kiln.)

I hope you are enjoying the summer heat.

With best wishes,

Arnold Howard Paragon Industries, L.P. – Better Designed Kilns 2011 South Town East Blvd. Mesquite, TX 75149-1122 Voice: 972-288-7557 & 800-876-4328 / Fax: 972-222-0646 ahoward@paragonweb.com / www.paragonweb.com

PROGRAMMING PYROMETRIC CONES

TEMPERATURES: Degrees F

Cone 022 Segment 1: Rate 396 Temperature: 979 Segment 2: Rate 108 Temperature: 1087

Cone 021 Segment 1: Rate 396 Temperature: 1004 Segment 2: Rate 108 Temperature: 1112

Cone 020 Segment 1: Rate 396 Temperature: 1051 Segment 2: Rate 108 Temperature: 1159

Cone 019 Segment 1: Rate 396 Temperature: 1144 Segment 2: Rate 108 Temperature: 1252

Cone 018 Segment 1: Rate 396 Temperature: 1211 Segment 2: Rate 108 Temperature: 1319

Cone 017 Segment 1: Rate 396 Temperature: 1252 Segment 2: Rate 108 Temperature: 1360

Cone 016 Segment 1: Rate 396 Temperature: 1314 Segment 2: Rate 108 Temperature: 1422

Cone 015 Segment 1: Rate 396 Temperature: 1348 Segment 2: Rate 108 Temperature: 1456

Cone 014 Segment 1: Rate 396 Temperature: 1377 Segment 2: Rate 108 Temperature: 1485

Cone 013 Segment 1: Rate 396 Temperature: 1431 Segment 2: Rate 108 Temperature: 1539

Cone 012 Segment 1: Rate 396 Temperature: 1474 Segment 2: Rate 108 Temperature: 1582

Cone 011 Segment 1: Rate 396 Temperature: 1499 Segment 2: Rate 108 Temperature: 1607

Cone 010 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1549 Segment 4: Rate 108 Temperature: 1657

Cone 09 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1580 Segment 4: Rate 108 Temperature: 1688

Cone 08 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1620 Segment 4: Rate 108 Temperature: 1728

Cone 07 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1681 Segment 4: Rate 108 Temperature: 1789

Cone 06 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1720 Segment 4: Rate 108 Temperature: 1828

Cone 05 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1780 Segment 4: Rate 108 Temperature: 1888

Cone 04 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1837 Segment 4: Rate 108 Temperature: 1945

Cone 03 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1879 Segment 4: Rate 108 Temperature: 1987

Cone 02 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1908 Segment 4: Rate 108 Temperature: 2016

Cone 01 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 180 Temperature: 1938 Segment 4: Rate 108 Temperature: 2046

Cone 1 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 1863 Segment 4: Rate 108 Temperature: 2079

Cone 2 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 1872 Segment 4: Rate 108 Temperature: 2088

Cone 3 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 1890 Segment 4: Rate 108 Temperature: 2106

Cone 4 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 1908 Segment 4: Rate 108 Temperature: 2124

Cone 5 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 1951 Segment 4: Rate 108 Temperature: 2167

Cone 6 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 2016 Segment 4: Rate 108 Temperature: 2232

Cone 7 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 2046 Segment 4: Rate 108 Temperature: 2262

Cone 8 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 2064 Segment 4: Rate 108 Temperature: 2280

Cone 9 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 2084 Segment 4: Rate 108 Temperature: 2300

Cone 10 Segment 1: Rate 324 Temperature: 1022 Segment 2: Rate 153 Temperature: 1112 Segment 3: Rate 162 Temperature: 2129 Segment 4: Rate 108 Temperature: 2345



Paragon Kilns on FacebookParagon Kilns on Twitter Paragon Kilns on YouTube Paragon RSS Feed

Kilns Sold

Get The Adobe Reader

Home

  • Home
  • Privacy Statement
  • Legal Notice
  • Paragon's Green Statement
  • Where To Buy Kilns
  • Resellers
  • About Us
  • Contact Paragon
  • News & Events
  • Support

  • Kiln Technicians
  • Kiln Support
  • Products

  • Bead Kiln
  • Glass Blower's Crucible Furnace
  • Ceramic Kilns
  • China Painting Kilns
  • Enameling Kilns
  • Industrial Furnaces
  • Glass Kilns
  • Lamp Working Kilns
  • Pottery/Ceramic and Glass
  • Pottery Kilns
  • Silver Clay Kilns
  • Wax Burnout Furnaces
  • Heat Treating Furnaces
  • Knife Making Furnaces
  • Custom Furnaces
  • Discontinued Models
  • “Custom and standard Kilns and Industrial Furnaces for ceramics, pottery, heat treating, enameling,
    dentistry, laboratory, and glass fusing.
    Better Designed Kilns from Paragon Industries!"