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 | | Rotary heath furnace
- Atmosphere controlled rotary hearth for heating turbine blades prior to forging
- Maximum operating temperature 1300°C
- Silicon carbide heating elements arranged in 3 zones of control
- Controls fitted in a free standing cabinet
- Variable hearth speeds to accommodate different blade sections
- The annular hearth is 355mm wide
- Power rating : 50kW
- Throughput : 70kg/hour
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 | | Rotary hearth furnace
- For compact sintering facilities using patented powder metal technology for the production of gold, silver and platinum wedding rings
- Powders are produced directly from the molten state and formed into rectangular sections known as compacts which require sintering
- The ring compacts are sintered in trays holding several hundred at a time
- Loading into the furnace is through the entry aperture
- The hearth pauses every 10° to allow another tray to be loaded, with the length of the pause adjustable to determine the length of the sintering cycle
- The rings are processed at 750°C to 800°C within a 95% nitrogen & 5% hydrogen atmosphere
- The furnace has been designed to allow for a sintering process lasting up to 24 hours
- Heated by 27 wire spiral resistance elements supported on ceramic tubes mounted horizontally above the furnace hearth
- The atmosphere is sealed in the furnace by two oil-filled troughs below the furnace hearth and curtains at the loading and unloading positions
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 | | Rotary hearth furnace
- For heat treating titanium parts
- Charge 120kg/hour
- Chamber dimensions: hearth – 1200mm OD refractory disc
- Hearth constructed from hardwearing ceramic which is rotated through a sand seal via a variable speed motor
- Free radiating Kanthal “AF” elements mounted horizontally above the hearth in three zones
- Nitrogen is introduced into the chamber via the element terminal box. Maximum flow is approximately 200 l/min
- An oxygen probe monitors the atmosphere in the working chamber at a temperature above 750ºC
- Working temperature up to 1150°C
- Uniformity : ± 8°C for 180°C of hearth rotation directly opposite the door
- Three zones controlled by Eurotherm 2216 three term digital instruments
- located in a free standing control module
- Power rating : 80kW
- Power supply : 3 phase 415/240V 50Hz
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