SRC gastight shaft furnace with internal atmosphere circulation up to 950 / 1100 °C

For processing large and heavy charges within a protective atmosphere

This gastight shaft furnace is primarily used for heat treatment of large and heavy charges in a predefined protective atmosphere (argon, nitrogen, forming gas, etc.), where a crane must be used for loading the charge into the furnace. It boasts, above all, a low consumption of protective gas. We can also adapt SRC furnaces to nitriding furnaces at your request.

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Benefits

  • The placement of the heating along the walls ensures an even temperature distribution in the furnace’s internal operational space
  • Low consumption of protective gas
  • Space for placing a thermocouple inside the retort
  • Defined operational space in the retort
  • Forced protective atmosphere circulation

Charge treatment technology

  • Normalisation annealing
  • Soft annealing
  • Annealing for stress relieving
  • Recrystallisation annealing
  • Artificial ageing
  • High-temperature tempering
  • Tempering
  • Curing
  • Nitriding
  • Carbonitriding
  • Sintering powdered metals
  • Soldering
SRC-1700_95-shaft-furnace-with-internal-atmosphere-circulation.jpg SRC 1700/95 shaft furnace with internal atmosphere circulation
SRC-1700_95-shaft-furnace-with-internal-atmosphere-circulation.jpg SRC 1700/95 shaft furnace with internal atmosphere circulation

Technické parametry

Furnace equipment

Furnace type Tmax**°C Recommended operating temperature range*** in °C Volume in l External dimensions (w × h × d) mm Internal dimensions (w × h × d) mm Input in kW Weight in kg Protection*  Voltage V Max. load capacity of bottom in kg
SRC 500/95 950 300 - 900 500 2100x2900x2300 800x1000 50 2500 100/3 400 350
SRC 800/95 950 300 - 900 800 2350x2900x2300 1000x1000 70 3200 125/3 400 450
SRC 1000/95 950 300 - 900 1000 2350x3150x2600 1000x1300 90 3600 160/3 400 600
SRC 1700/95 950 300 - 900 1700 2500x3500x2800 1200x1500 120 5000 200/3 400 1000
*Protection can vary depending on accessories added (at additional cost).
** If a retort made from Inconel and a cast screw are used, then up to 1100 °C.
*** If a retort made from Inconel and a cast screw are used, then up to 1050 °C.
Subject to technical changes
 
Note: After our experience with previous applications, we know that the service life for a standard retort (an internal gastight vessel) used for a maximum temperature of 950 °C is low (it depends on its endurance period for the temperature, but is roughly on the order of hundreds of hours). If you wish to operate a plant regularly at a temperature of around 950 °C, then we recommend equipping it with a retort made from Inconel.

Standard equipment

  • retort
  • electro-hydraulically lifted lid
  • HtIndustry/Ht205 controller (30 programmes with 15 steps each)
  • limit unit
  • standard manovacuometer for checking overpressure and underpressure in the retort
  • ammeters for checking the state of the heating elements (numbers based on number of phases connected to the heating)
  • automatic intake of protective atmosphere for one type of gas (without vacuum pump)
  • resistance heating (meanders)
  • insulation using blocks made of mineral-fibre and lightweight refractory bricks
  • “K” type thermocouple

Optional accessories available at additional cost

  • Ht200 controller (30 programmes with 25 steps each, USB interface)
  • replacement retort made of refractory stainless steel
  • vacuum pump with attachment
  • RS232 or EIA485 interface
  • HtMonit set (software + interface)
  • charge thermocouple and Ht40 display
  • optimisation of the temperature field to meet the DIN 17052-1 ΔT 15 °C standard in the internal usable space (in an empty furnace at Tmax)
  • measuring loop calibration
  • automatic intake of protective atmosphere for one type of gas (with vacuum pump)
  • graphic temperature recorder
  • controlled forced overpressure cooling
  • uncontrolled forced overpressure cooling
  • retort made from Inconel
  • the system monitors optimal pressure in the retort (2–4 mbar)
  • other gas management per customer specification (multiple gases, multiple flows, etc.)
  • individual dimensions to match customer requirements
  • loading frame for retort
 
Note: When combining accessories (at additional cost), consult with our technical office.
Over 13,000 furnaces manufactured
Our own team of maintenance technicians
25-member design team
6 custom projects per month
Testing of your specific charges
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