- Process
- Drawing
- Equipment types
- Salt bath furnacesBatch, specialty & pit furnaces
- Systems
- 8
Plan your equipment
Drawing can run in batch, continuous or salt bath equipment. Send the part geometry and load pattern, and tell us whether production is batch or continuous. We’ll talk through which fits.
Salt bath furnaces
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Ceramic Salt Bath Furnaces
Only the faces of Upton’s submerged electrodes touch the salt, so the electrodes take up none of the bath space.
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Externally Heated Salt Pot Furnaces
Externally heated salt pot furnaces with carbon-steel or stainless-steel liners, electric resistance heaters or Upton Hurricane gas burners, for intermittent service.
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Internally Heated Salt Bath Furnaces
Internally heated salt bath furnaces for non-chloride salts, with carbon-steel or stainless-steel liners.
Externally or internally heated
Both are steel-lined salt bath furnaces. They differ in where the heat enters the salt: through the wall of a pot, or directly in the bath.
| Externally Heated Salt Pot Furnaces | Internally Heated Salt Bath Furnaces | |
|---|---|---|
| Heat enters | From outside the pot, through its wall | In the salt, from heat sources immersed in the bath |
| Electric | Electric resistance heaters | Immersion heaters for lower-temperature work; air- or water-cooled electrodes with transformers at elevated temperatures |
| Gas | Upton Hurricane tangential burners, designed to minimize flame impingement on the salt pot | Radiant tubes |
| Suited to | Intermittent service | Non-chloride salt applications |
| Liner | Carbon steel or stainless steel, selected for the operating conditions | |
| Drawings (PDF) | ||
To quote either furnace, send us:
- Part sizes
- Load weight
- Process temperature
- The salt you plan to run
Batch, specialty & pit furnaces
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Box Furnaces
Electric or gas-fired box furnaces with fan recirculation; a charge-table model is available as the U-BCE.
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Car Bottom Furnaces
Electric or gas-fired car-bottom furnaces with fan recirculation and a ColdCar loading hearth.
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Bell Furnaces
Electric or gas-fired lift-off bell furnaces with fan recirculation and ball-screw actuators in the lifting system.
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Belt Furnaces
Electric or gas-fired continuous belt furnaces with fan recirculation and variable-speed belt drives.
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Pit Type Furnaces
Electric or gas-fired pit furnaces with stainless-steel retorts and bottom-mounted circulation fans.