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MRF Spare Parts
MRF, Inc. supplies resistive heaters and shields designed in-house
and fabricated by our refractory department.We pride ourselves for our heating elements and shields with excellent temperature uniformity and longevity. Our range of metallic mesh-heaters adds to this
excellent uniformity, high temperature ramp-up speeds, high watt-densities, and an exceptionally long
useful life with no performance degradation over time.
Besides providing hot zones for MRF furnaces, we also retrofit hot zones for furnaces of other manufacture. We will match or exceed the specifications of your current hot zone and guarantee complete compatibility with your existing system. Our high quality workmanship, the excellent performance of our zones and our competitive pricing persuade many furnace owners to use MRF made parts.
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MRF designs & supplies hot zone elements and shields of these materials:
- Ceramics
- Graphite
- Molybdenum
- Moly-Dicilicide
- NiCr
- Stainless Steel
- Tantalum
- Tungsten
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Hot zone configurations:
- Mesh Heaters
- Panel heaters
- Rod heaters
- Round zones
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Square zones
Hot zone Atmospheres:
- Reducing
- Oxydizing
- Inert
- Vacuum
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MRF, Inc stocks many furnace parts that need periodic replacement during normal usage of a high temperature furnace and are available for immediate delivery. Most of these components gradually deteriorate caused by thermal cycling, handling by operators, or the atmosphere to which they are exposed. To minimize inconvenience in the event of down time, MRF works hard to keep the lead times of these items to a minimum.
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Temperature Thermocouples
TC's will drift over time and become less accurate before failing. This failure can come sudden at high temperatures and always occurs when least desired. For these reasons, a few spare TC's should always be kept at hand. MRF specifically stocks TC's for high temperature furnaces not easily found elsewhere.
- 1/8"or 1/4" diameter
- 4" to 24" length
- Type J, K and C
- Matching Extension wire
- Vacuum rated TC Feed throughs
- Tungsten, Molybdenum, Inconel, Stainless steel, Tantalum Sheath Coatings
- Bare wire TC's
- Others available
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O-ring Seals
To maintain optimal vacuum performance, especially around seals that are suspect to wear like door seals, sliding seals or rotating seals, vacuum seals should be kept as spares in the event of vacuum leaks or maintenance. Available seals that we stock are:
- Viton
- Silicon
- Teflon
- Buna
- Quad seals
- Spring loaded seals
- 1/8" ID to 72" ID
- Many Cross sections
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Insulators & Other Parts
Other Miscellaneous common furnace parts that might require replacement:
- Ceramic insulators
- Clamps
- Centering rings
- Copper Gaskets
- Ceramic washers
- Graphite mounting hardware
- Feed throughs
- Ceramic Tubes
- Vacuum Grease
Most of these parts can be found on a typical water-cooled high temperature furnace. As many of these parts are fragile, small, or are meant for one-time use only, they should be kept at hand as some might need replacement during dis- and re-assembly or during maintenance. |
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