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Front-angled view of Crucible 18 Glass Kiln from Olympic with electric box and controller and counter-weighted lid closed.

Olympic Kilns Crucible 18 Glass Kilns

by Olympic Kilns
Save $846.00
$4,230.00
$3,384.00
Financing Information i

Financing through Approve is exclusively for business equipment loans and is available to all types of organizations, excluding personal loans. Minimum purchase price of $1,500.

The Crucible 18 is a high-performance kiln built for serious glass melting, offering powerful heat, superior insulation, and a safety-focused design. With precision digital controls and durable construction, it’s the ultimate solution for glass artists, and also metalurgists, needing reliability at temperatures up to 2350°F.

Important Details:

  • Chamber size: 17.5" W x 18" D
  • Volume: 2.63 cubic feet
  • Maximum temperature: 2350°F (Cone 10)
  • Electrical options: 208V/49A or 240V/48A
  • Required breaker: 60 amps (for both voltages)

iNot sure what product options to choose? Check out our Kiln FAQs below!

Voltage selection
Controller selection

Need a formal quote or to request a W9? Let us know!

Interested in all Reviews ever provided to Pottery Pulse, regardless of product? Click here.

Crucible 18: The Ultimate Kiln for High-Temperature Glass Melting

Achieve Unmatched Control and Efficiency in Glassmaking

Introducing the Olympic Kilns Crucible 18, a powerhouse kiln designed for serious glass artists who require precision, durability, and safety in their high-temperature work. Whether you’re melting glass for intricate designs, sculptural projects, or large-scale productions, this kiln provides the robust performance you need to achieve professional-quality results every time.

Built for High-Performance Glass Melting

With interior dimensions of 17.5″ wide by 18″ deep and capable of firing up to 2350°F, the Crucible 18 is engineered for the most demanding glass melting tasks. This kiln is perfect for artists working with large volumes of glass and seeking a reliable, high-temperature environment for consistent results. Its thick 3” brick walls and 1” fiber blanket offer exceptional insulation, while the stainless-steel jacket ensures long-lasting durability.

Advanced Features for Safety and Precision

The Crucible 18 is designed with safety in mind. It features an automatic lid shut-off that turns off the elements when the kiln lid is opened, ensuring safe operation. The counter-weighted lid and stainless-steel trough make gathering glass from the crucible both safe and efficient, protecting both the artist and the kiln. Additionally, the 3” thick, separate bottom can be turned over or replaced easily if damaged, further extending the kiln’s lifespan.

State-of-the-Art Temperature Control

Precision is key in glassmaking, and the Crucible 18 delivers with the Digital KilnStar controller, which offers intuitive and precise control over your firing process. With programmable ramp-hold settings, the KilnStar allows you to store and repeat firing schedules with accuracy. The simple interface lets you adjust temperature and time with ease, ensuring that your kiln reaches the exact conditions needed for your project.

For those seeking even more advanced control, the Genesis touchscreen controller is available as an upgrade. The Genesis provides additional features such as delay start, preheat, and extra ramp-hold programs, allowing for even greater flexibility and customization in your glassmaking process.

Designed for Efficient Element Operation

The Crucible 18’s element system is optimized for both performance and efficiency. Featuring four sets of elements, this kiln heats up rapidly, with two sets required to maintain temperature and two in reserve to prevent cooling if an element fails during firing. This design ensures that your kiln continues to perform efficiently, even during intensive use.

Customization and Durability

The Crucible 18 offers customizable options to enhance its performance further. The kiln’s gaskets can be cut to fit the size of your crucible when ordered, ensuring a perfect fit for your specific needs. With a solid stainless-steel construction and a durable, counter-weighted lid, the Crucible 18 is built to withstand the rigors of daily use in professional studios.

The Olympic Kilns Crucible 18: Power, Precision, and Reliability

The Olympic Kilns Crucible 18 is more than just a kiln—it’s an essential tool for glass artists who demand the highest levels of performance and reliability. With its advanced features, robust construction, and customizable options, this kiln is the perfect choice for professionals looking to elevate their glass melting projects to the next level.

  • Model: Crucible 18
  • Lid Lift Assist: Yes, standard
  • Inside Chamber Dimensions: 17.5"W x 18"D
  • Cubic Feet: 2.63
  • Outside Dimensions with Stand or Frame: 31"W x 39"D x 51.5"D
  • Brick Thickness: 3"
  • Maximum Temperature: Cone 10 - 2350°F/1288°C
  • Estimated Ship Weight: 275 lbs
  • Voltage options: 208 volts and 240 volts, both with 1-phase wiring (Contact Pottery Pulse if you require a kiln built for 3-phase wiring, to get specification and pricing)
  • Amperage: 49 amps with 208 volt option. 48 amps with 240 volt option.
  • Watts: 11,500
  • Breaker: 60 amp required, for both voltage options
  • Plug Configuration: NEMA 6-50
  • Copper Wire Size: #6, #4 if the circuit is longer than 40 ft

Estimated order-to-ship lead time is approximately 12 weeks for Olympic Kilns.

We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Pottery Pulse.

If this specific product has already been reviewed, you will find it below all the product information tabs, and above the "You may also like..." section.

If it has not, you can still find all reviews left from Pottery Pulse customers at this Reviews page on our site. Please click that link and read what other customers are saying as you consider whether or not to provide your business to Pottery Pulse.

We are confident we sell outstanding products from outstanding manufacturers, and that we'll top the best customer experience you can find anywhere. We are devoted to our customers because we simply are out of business without them.

Simply put, you could say that makes you the center of our universe.

FAQs - Configuring Your Kiln

There are certain selections you must choose. And then there are options you can click on or ignore. The answers below should help you make the best choices for you.

 Which Kiln Voltage Should I Select?

Higher voltage means lower amperage draw and greater efficiency, which can save money long term. 240V and 208V cost the same—most home studios use 240V, while 208V is common in schools or large facilities. Amperage refers to the amount of electrical current a kiln draws—higher amps require heavier wiring and breakers.

What's The Difference Between Single-Phase and Three-Phase?

Single-phase is what almost all homes have. If your facility has three-phase, you can choose either—but three-phase is typically the better long-term option due to smoother power and improved efficiency.

Which Relay Option Do I Need?

Mechanical relays are standard and reliable. Solid-state relays (SSR) offer silent operation, faster cycling, greater precision, and longer lifespan—ideal for frequent or high-accuracy firings.

What Are The Differences Between Kiln Controllers?

The following controllers are used across kilns sold by Pottery Pulse. Not all models offer every option—available controllers are listed on each product page. Some kilns include only the standard controller, while most allow upgrades for added precision and convenience.

Olympic Kilns

  • Infinite Switch – Manual dial control for simple heat adjustments.
  • KilnStar – Digital controller with preset and user-defined programs.
  • Genesis – Advanced touchscreen interface with Wi-Fi and data logging.

Evenheat Kilns

  • Icon – Digital 3-button controller for straightforward firing.
  • RampMaster II – Manual digital controller for ceramic kilns; flexible ramp/hold programming.
  • RampMaster 3 – Updated version for glass kilns with refined interface.
  • Icon+ – Enhanced digital control with expanded profiles and precision.
  • TAP II – Smart touchscreen controller with Wi-Fi, data tracking, and remote access.

Hot Shot Kilns

  • Novus – “Set & Go” controller: set a target temperature and it does the rest (no segments).
  • Spark – Entry-level touchscreen controller with intuitive operation and limited program control.
  • TAP II – Smart touchscreen controller with Wi-Fi and real-time monitoring.

Jen-Ken Kilns

  • Orton AF3P 3-Button – Reliable and straightforward for basic firing.
  • Orton AutoFire 4000 12-Key – Expanded program capacity and fine control.
  • Orton AutoFire Slide Touchscreen – Modern, responsive touchscreen interface.
  • TAP II Touchscreen Smart Controller – Wi-Fi connectivity and real-time data tracking.

What Are Collars For?

Not all kilns can use a collar, but Olympic’s Hot Box kilns can be ordered with a collar to expand versatility. A blank collar simply adds height to the firing chamber, while a bead collar adds the same height and includes a built-in bead or annealing door for quick-access lampwork projects.

What Does The Power Interrupt Switch Do?

This safety feature automatically cuts power to the heating elements whenever the kiln lid or door is opened. It prevents accidental burns, protects elements, and resumes power only when safely closed. (Also called an automatic lid shutoff on Olympic kilns.)
Description

Crucible 18: The Ultimate Kiln for High-Temperature Glass Melting

Achieve Unmatched Control and Efficiency in Glassmaking

Introducing the Olympic Kilns Crucible 18, a powerhouse kiln designed for serious glass artists who require precision, durability, and safety in their high-temperature work. Whether you’re melting glass for intricate designs, sculptural projects, or large-scale productions, this kiln provides the robust performance you need to achieve professional-quality results every time.

Built for High-Performance Glass Melting

With interior dimensions of 17.5″ wide by 18″ deep and capable of firing up to 2350°F, the Crucible 18 is engineered for the most demanding glass melting tasks. This kiln is perfect for artists working with large volumes of glass and seeking a reliable, high-temperature environment for consistent results. Its thick 3” brick walls and 1” fiber blanket offer exceptional insulation, while the stainless-steel jacket ensures long-lasting durability.

Advanced Features for Safety and Precision

The Crucible 18 is designed with safety in mind. It features an automatic lid shut-off that turns off the elements when the kiln lid is opened, ensuring safe operation. The counter-weighted lid and stainless-steel trough make gathering glass from the crucible both safe and efficient, protecting both the artist and the kiln. Additionally, the 3” thick, separate bottom can be turned over or replaced easily if damaged, further extending the kiln’s lifespan.

State-of-the-Art Temperature Control

Precision is key in glassmaking, and the Crucible 18 delivers with the Digital KilnStar controller, which offers intuitive and precise control over your firing process. With programmable ramp-hold settings, the KilnStar allows you to store and repeat firing schedules with accuracy. The simple interface lets you adjust temperature and time with ease, ensuring that your kiln reaches the exact conditions needed for your project.

For those seeking even more advanced control, the Genesis touchscreen controller is available as an upgrade. The Genesis provides additional features such as delay start, preheat, and extra ramp-hold programs, allowing for even greater flexibility and customization in your glassmaking process.

Designed for Efficient Element Operation

The Crucible 18’s element system is optimized for both performance and efficiency. Featuring four sets of elements, this kiln heats up rapidly, with two sets required to maintain temperature and two in reserve to prevent cooling if an element fails during firing. This design ensures that your kiln continues to perform efficiently, even during intensive use.

Customization and Durability

The Crucible 18 offers customizable options to enhance its performance further. The kiln’s gaskets can be cut to fit the size of your crucible when ordered, ensuring a perfect fit for your specific needs. With a solid stainless-steel construction and a durable, counter-weighted lid, the Crucible 18 is built to withstand the rigors of daily use in professional studios.

The Olympic Kilns Crucible 18: Power, Precision, and Reliability

The Olympic Kilns Crucible 18 is more than just a kiln—it’s an essential tool for glass artists who demand the highest levels of performance and reliability. With its advanced features, robust construction, and customizable options, this kiln is the perfect choice for professionals looking to elevate their glass melting projects to the next level.

Specifications
  • Model: Crucible 18
  • Lid Lift Assist: Yes, standard
  • Inside Chamber Dimensions: 17.5"W x 18"D
  • Cubic Feet: 2.63
  • Outside Dimensions with Stand or Frame: 31"W x 39"D x 51.5"D
  • Brick Thickness: 3"
  • Maximum Temperature: Cone 10 - 2350°F/1288°C
  • Estimated Ship Weight: 275 lbs
  • Voltage options: 208 volts and 240 volts, both with 1-phase wiring (Contact Pottery Pulse if you require a kiln built for 3-phase wiring, to get specification and pricing)
  • Amperage: 49 amps with 208 volt option. 48 amps with 240 volt option.
  • Watts: 11,500
  • Breaker: 60 amp required, for both voltage options
  • Plug Configuration: NEMA 6-50
  • Copper Wire Size: #6, #4 if the circuit is longer than 40 ft
Current lead times

Estimated order-to-ship lead time is approximately 12 weeks for Olympic Kilns.

Why Buy From Us

We get it. You've got a lot of choices when it comes to online retailers. Here's why we think you should shop with us at Pottery Pulse.

Customer Reviews

If this specific product has already been reviewed, you will find it below all the product information tabs, and above the "You may also like..." section.

If it has not, you can still find all reviews left from Pottery Pulse customers at this Reviews page on our site. Please click that link and read what other customers are saying as you consider whether or not to provide your business to Pottery Pulse.

We are confident we sell outstanding products from outstanding manufacturers, and that we'll top the best customer experience you can find anywhere. We are devoted to our customers because we simply are out of business without them.

Simply put, you could say that makes you the center of our universe.