Shaker Hearth Furnaces
The Almor Wild Barfield Shaker Hearth Furnace has established a reputation for the supply of robust installations to meet a wide variety of hardening needs for a diverse range of industries:
Design Features
- Continuous atmosphere heat treatment of small components
- Cast alloy serrated hearth sealed to quench tank
- Single tray furnaces (SF23, SF30, SF45)
- Twin tray furnaces (SF60, SF90)
- Gas carbo-nitriding, clean hardening and annealing
- Electrically heated (all models)
- Gas heated (Energy saving, low NOx burners) (models SF45 – SF90)
- Maximum temperatures up to 1000°C
- Roof mounted high performance fan for optimum atmosphere uniformity (option)
- Low energy loss insulation
- Excellent temperature uniformity
- Reactive or protective gas mixes dependant on process
- Oil quench tanks up to 200 deg°C
- Salt quench tanks for austempering
- Integral loading system, wash and tempering units for complete continuous line
- Advanced process control systems for optimum control of carbon potential
| Model | No. Of Trays | Tray Width mm | Heated Length mm | Length mm | Overall Width mm | Height mm | Rating | Output |
|---|---|---|---|---|---|---|---|---|
CASE STUDY 1
Industry: Munitions
- Application: Hardening and Tempering bullet tips
- Maximum temperature: 950°C
- Equipment: SF23 (230mm wide tray) with Rotary oil quench, wash and tempering
- Atmosphere: Nitrogen and Propane addition
CASE STUDY 2
Industry: Medical
- Application: Hardening medical needles
- Maximum temperature: 950°C
- Equipment: SF23 (230mm wide tray) with oil quench tank
- Atmosphere: Endothermic gas plus controlled additions
- Process control: Oxygen probe
CASE STUDY 3
Industry: Automotive
- Application: Carbonitriding
- Heating: Gas fired single ended recuperative radiant tubes
- Maximum Temperature: 950°C
- Equipment: SF90G (Twin 450mm wide tray) with rotary oil quench tank
- Atmosphere: Endothermic gas plus ammonia additions
