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This is a JD230. It does not show the Quad elements on the larger JD2927 control box.

Click on image to enlarge

This is a JD230. It does not show the Quad elements on the larger JD2927 control box.

Furniture Kit

 H-J-K23X/00 ($435.00)
Furniture Kit for JD230 Jupiter (2-1/2" brick)

Two 21" Full Round Shelves and Four 21" Half Round Shelves (3/4" thick), Six each of 1/2", 1", 2", 4", 6", & 8" high 1-1/2" Square Ceramic Posts, Heat Resistant Gloves and 1 pound of Cone 10 Kiln Wash

Questions? Quote?

Send an email to sales@hotkilns.com or
call 800-750-8350.

JD230-JH Crystalline Kiln

Model JD230-JH  - JH Series Crystalline Glaze Kiln with extra power for fast heat up, K25 brick for reduced brick shrinkage at high temperature soaks, Quad Super Heavy Duty Elements, Multi-Program Three-Zoned DynaTrol, 2-1/2" brick sides and bottom and a 3" top for heat balancing and fast cooling, and type S platinum thermocouples. 22-3/8" Diam x 27" High (6.7 cubic feet). Direct power connection. Cone 12. The JH Series is specifically designed for crystalline glaze firing. (Not listed to UL499)

$5205

More images

Quad elements are standard
Quad elements hot
Type S thermocouples are standard
DynaTrol features four Easy-Fire programs and six Vary-Fire user-defined programs plus zone control
Benefits of zone control
Detail showing spring hinge with two springs for balanced force and a safety lanyard to hold lid in place
Note the way we make element connections electrically tight but easy to work on. No crimping required.
Panel is mounted off the kiln and stays cool
Chest Handles on each kiln section
Peephole with our unique straight and solid peephole plug shown
Heavy-duty 14 gauge aluminized steel full-support stand shown with stainless vent bypass collection box and leg detail
2-1/2" (63 mm) K25 2500F Firebrick, 3" (76mm) Top
Top-Loading
Three 9" high sections
10 sides
6.7 cubic ft (190 Liters)
295 pounds (134 Kg)
22-3/8" Diam x 27" High
56.8 cm Diam x 68.6 cm High
32" Wide x 45" Deep x 41" High
81.3 cm Wide x 114.3 cm Deep x 104.1 cm High
Download (PDF)
Part Number
Watts
Volts
Phase
Fuse Size
K-A-231J/31
13680 W
240 V
Single Phase
80 Amp

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for USA market only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

K-A-231J/32
13680 W
240 V
Three Phase (Delta)
50 Amp

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for USA market only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

K-A-231J/21
12480 W
208 V
Single Phase
80 Amp

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for USA market only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

K-A-231J/22
12480 W
208 V
Three Phase (Delta)
50 Amp

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for USA market only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

K-A-231J/41
12540 W
220-230 V
Single Phase
80 Amp

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for non-USA markets only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

K-A-231J/52
W
380-415 V
Three Phase (Wye)

Maximum Temperature

  • Max TemperatureCone 12, 2400F, 1315C

Additional Electrical Information

Certifications and Markets

  • InternationalMade for non-USA markets only
  • CENot CE certified
  • UL499Not listed to UL499
[sell_price]

Click on Red Arrow to expand specifications for each voltage. When printing the page expand the voltage specifications first.

Three 9” high sections stack on top of each other. The hinge and element connection box hold the entire kiln together as an integrated unit. The kiln is very easy to assemble and disassemble. The kiln sections plug into the separate control panel.  More about sectional construction...
Stainless steel wrapped around shaped firebrick. There are three adjustable clamps welded to each casing. All assembly is with stainless steel screws. The kiln sections sit on a separate stand.
Spring loaded "Easy-Lift" lid opens with a feather-lite touch. The strength of the hinge allows the lid to rest back away from the opening without a support arm that would get in the way of loading the kiln.
Heavy-duty 14 gauge full solid stand with multiple bends for strength. Legs bolt on with heavy 1/4-20 stainless bolts. The metal is aluminized for good corrosion resistance.
A proprietary brick coating is applied to all interior surfaces of the kiln. This is put on before the element holders are inserted. This coating penetrates the firebrick and fuses the surface on a microscopic level which helps prevent dusting and crumbling of the fragile firebrick.
Solid ceramic peephole plugs with full 1” diameter. Three total: one per section.
Limited Three Year Warranty (Note: The Element Warranty is modified for the JH Series - see the Warranty for details)
Three control zones with three separate thermocouples. More about zone control.
Type S Thermocouple in an Alumina Protection Tube (4.75" / 120mm)
Mounted on control panel
All controls and components are mounted in a separate control panel that is mounted to the element connection boxes with an air space in between. The control panel is hinged for easy access and maintenance. Each kiln section plugs into the control box. Control box can be easily removed for servicing. On/off switch and control fuse are included. More about Jupiter plug-in control panel.
Control box cover is hinged for easy access to inside of control box. Entire control box is removable.

Durability

Corrosion resistant materials and methods result in a long-lasting kiln.
Three case clamps per 9" high kiln section are redundant safety for your L&L kiln.
Durability, Repairability, Better Heat Transfer. The smooth, hard surface of the inside ceramic channel allows the elements to expand and contract freely. No pins! The dense ceramic holders extend element life because they do not insulate the hot elements from the kiln interior.
Industrial grade ceramic terminal blocks make changing elements easy.
Special brick coating hardens and seals brick for durability and cleaner operation.
The Quad Element System provides a massively robust element for long life under production conditions. Standard on eQuad-Pro and JH Series. Optional on most other kiln series.
Aluminized stands are extremely strong and corrosion resistant. The offer solid support under the kiln - unlike spot-welded angle stands that are common in the industry.
Stainless Steel clips help the lid stay secure and durable. This extra step ensures that the lid won't slip out of the stainless steel band.
Type S Platinum Thermocouples are the best high temperature thermocouple for ceramics

Performance

Zone control gives you the utmost in controllable temperature uniformity. The DynaTrol separately measures temperatures in the bottom, middle and top of the kiln and automatically adjusts the heat output of three zones during the entire firing.
DynaTrol with 4 Easy-Fire programs (Slow Bisque, Fast Bisque, Slow Glaze, Fast Glaze), 6 custom programs, PreHeat, Delay, Program, Segment Review, and Diagnostics. Zone control included on most kilns.
K23 firebrick combines good insulation with strength

Ease of Use

Feather-light spring hinge allows full access without a side support bar - for easy loading. Standard on all 10 and 10 sided polygonal kilns.
Solid large non-tapered peepholes allow a wider view into the kiln.

Support

The combined experience at L&L Kilns in kilns, ceramics, electrical engineering and process engineering is unsurpassed. We work as a team to help you get you answers and help.

Serviceability

Wiring is neatly laid out using National Electrical Code and UL499 Standards
Each kiln sections plugs into the Jupiter control panel. Easy to remove or change kiln configuration.
The bottom can be easily reversed in case of a firing mishap.
Sectional kiln construction make Jupiter kilns easy to move, set up and disassemble for maintenance.

Safety

Power Relays are mercury-free to comply with increasing regulation and concern about mercury in schools
All L&L Kilns come with an on-off switch

Elements

APM elements increase element life in difficult applications

Thermocouples

Type S Platinum Thermocouples are recommended for high fire applications

Vents

The L&L Vent-Sure Kiln Vent is the most powerful downdraft kiln vent on the market today. That means you have more flexibility in the installation.

The Vent Control allows you to automatically control the operation of the Vent-Sure kiln vent with one of the outputs from the DynaTrol (or Genesis). 

Kiln Furniture

Kiln furniture kits are the recommended set of ceramic shelves, posts and kiln wash that go with each kiln model. These are for loading the work in the kiln.

Cone 10 Kiln wash is used to coat shelves to prevent sticking of glaze.

These safety gloves are perfect for handling hot work when unloading a kiln.

Controls

The new Genesis control from Bartlett includes a touch screen interface and WIFI connectivity added to the proven software of the DynaTrol. 

Control, monitor and record data for up to 10 kilns from your computer for a one-time price.

Electronic High Limit Back Up Control acts as an upper limit back up to the main control.

Power

This option helps protect your control from electrical noise

Powered bottoms increase power and can aid uniformity in large kilns

Miscellaneous

This special Seismic Kiln Rack and Brace is designed to prevent a kiln from falling over during an earthquake. 

Unpowered rings can extend the height of our Jupiter kilns.

44" Wide x 44" Deep x 48" High
111 cm Wide x 111 cm Deep x 121 cm High
44" Wide x 44" Deep x 60" High
111 cm Wide x 111 cm Deep x 152 cm High
44" Wide x 44" Deep x 63" High
111 cm Wide x 111 cm Deep x 160 cm High
44" Wide x 44" Deep x 63" High
111 cm Wide x 111 cm Deep x 160 cm High
312 lbs (142 kg) + Kit 387 lbs (176 kg) + Vent 337 lbs (153 kg) + Kit + Vent 412 lbs (187 kg)
Skidded Carton with Foam-in-Place packaging