The original Orton metric cones. LRB’s are widely used as witness cones on kiln shelves to visually monitor firing progress and heat work throughout the kiln. Large cones need to be supported by a cone plaque (MS517), a clay pat or a wire cone holder. Uniform mounting height and angle are very important.
50 cone per box. Shipped as pairs in the box (see below for splitting them apart)
We do not stock LRB022-LRB015 – they are special order. Please call us for lead times.
**If purchasing LRB cones – they need to be supported with a cone plaque (see part # MS517)**
Orton LRB and SRB cones look different now:
The machine that Orton used to separate the cones was extremely old and finally broke down, so Orton has decided not to replace the machine. You will find the cones attached together and they will need to be split apart. Use a butter knife, screw driver, or anything with a flat tip as a wedge between the two cones and tap it with something like a heavy spoon. The two should break apart easily. We also recommend a cone breaker (Part # K911)
Orton also has a cone template (Part # K600F) – Pocket Size Measuring Template for Orton Large and Self-Supporting Cones. You’ll find Temperature equivalents on the back to measure in °Fahrenheit. Great for measuring the bending angle of a fired cone!
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