OHM  EQUIPMENT
PO Box 538 Millville, NJ 08332

info@ohmequipment.com

856.765.0808 phone/fax

EXCELLENCE IN EVERYTHING WE DO
glass blowers furnace glassblowers glory hole glassblowers annealing oven liln forming kiln glassblowers garage glassblowing controls glassblowing controls ohm equipment contact glass blowing energy
glass blowers bench
FURNACES GLORY HOLES ANNEALERS KILNS GARAGE & PIPE WARMERS ACCESSORIES CONTROL COMPONENTS SAFETY SYSTEMS CUSTOM SOLUTIONS CONTACT US ENERGY BASICS
ANNEALERS
Annealing ovens are strictly front loading units designed to anneal and cool glass. They are distinguished from KILNS which are top loading units designed for high temperature kiln forming as well as annealing/cooling. Typical applications for these ovens include annealing blown glass, hot cast glass, flame worked glass and solid worked glass. All ovens are sealed with high temp gaskets and are not designed for kiln forming temperatures. Recommended max temperature 1100° F. Exceeding this temp is possible but will require more frequent replacement of the door seals. Ramp and soak controllers are sold separately.

annealing oven
annealing oven Lockable Door latches
Options include... Kiln shelves, frameless shelf supports, casters, overtemperature protection, elements wired into the doors and stackable frames for multiple ovens.

STANDARD ON EVERY OVEN: Frames are 1”x 2” tubing sheathed with 14 gauge sheet metal. Doors are 1.5”x1.5” angle iron with 12 gauge sheet metal. The stand is 1.5”x1.5” tubing on levelers. All surfaces are painted with high temp black enamel paint. Safety switches and lockable door latches are standard. All Hinges are adjustable. Element connections are in the rear along with 1 K-type thermocouple strategically placed. The frame is designed to accept a standard pallet jack. The result is a very durable long lasting low maintenance oven.

A word or two about insulation. Most low cost ovens consist of 2.5”of 2300°f soft brick mortared together with no back up insulation and a thin metal shell. These are very inefficient to run and become dangerously hot when on. The problem is that dense mortar actually wicks heat through the wall of the kiln and defeats the purpose of the insulation. It is cheap to mass produce but you pay the price every time you fire the oven or burn yourself. The typical solution is to use back-up insulation with a more rigid frame. As a result most annealing ovens in the art glass world have walls consisting of 2.5” of soft brick mortared and 2” of backup board. Ours are made the same way using 4” of insulation board in the ceiling and 3” of insulation in the doors and are referred to as the Standard 2.5” brick wall.

WHAT WE DO DIFFERENTLY.....is to produce our ovens 3 ways. Beside the standard mentioned above we make ovens walls using 4.5” of 2300°f soft brick with 2” insulation. This allows us to eliminate the mortar while adding 2” of insulation, greatly increasing the durability and lowering the skin temp of the oven. It has the added benefit of easy brick replacement if the wall becomes damaged. The final style is a 100% fiber oven. 2” of 2300°f fiber is backed with 2” insulating fiber making a super efficient highly responsive oven with a very cool skin.

kiln shelf
optional kiln shelf and frameless support
Standard oven sizes

( WE WILL MAKE ANY SIZE YOU MAY NEED)

A8.3 cuft
Interior is 27”wide x 24.5”deep x 21.5”tall. 2 doors, Electrical requirements, 24 amps at 240volts.
Standard 2.5” brick wall--------------$5,400
Heavy weight 4.5” brick wall-------$6,360
Ultra efficient 100% fiber------------$7,700

A16.1 cuft
Interior is 35.5”wide x 27”deep x 29”tall. 2 doors, Electrical requirements, 36 amps at 240volts.
Standard 2.5” brick wall--------------$6,925
Heavy weight 4.5” brick wall-------$8,380
Ultra efficient 100% fiber-------------$10,500


A21.4 cuft
Interior is 58”wide x 24.5”deep x 26”tall. 2 doors, Electrical requirements, 48 amps at 240volts.
Standard 2.5” brick wall--------------$8,150
Heavy weight 4.5” brick wall-------$9,980
Ultra efficient 100% fiber-------------$12,700


A28.3 cuft
Interior is 53.5”wide x 29”deep x 31.5”tall. 2 doors, Electrical requirements, 60 amps at 240volts.
Standard 2.5” brick wall--------------$9,040
Heavy weight 4.5” brick wall-------$11,150
Ultra efficient 100% fiber-------------$14,325


A38.1 cuft
Interior is 58.5”wide x 31.5”deep x 35.75”tall. 3 doors, Electrical requirements, 96 amps at 240volts.
Standard 2.5” brick wall--------------$10,400
Heavy weight 4.5” brick wall-------$13,000
Ultra efficient 100% fiber-------------$16,850