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Nabertherm Cold-Wall Retort Furnaces up to 2400 °C Standard Equipment for all Models NEW
Miscellaneous lab equipment >> Nabertherm Cold-Wall Retort Furnaces up to 2400 °C Standard Equipment for all Models NEW
Nabertherm Cold-Wall Retort Furnaces up to 2400 °C Standard Equipment for all Models NEW
Basic version
- Standard furnace sizes 8, 40 and 100 liters
- A water-cooled stainless steel process reactor sealed with temperature-resistant o-rings
- Frame made of stable steel profiles, easy to service due to easily removable stainless steel panels
- Housing of the VHT 8 model on castors for easy repositioning of furnace
- Cooling water manifold with manual stopcocks in supply and return lines, automatic flowmeter monitoring, openloop cooling water system
- Adjustable cooling water circuits with flowmeter and temperature indicator and overtemperature fuses
- Switchgear and controller integrated in furnace housing
- H 700 PLC control with clearly laid out 5.7“ touchpanel control for program entry and display, 10 programs each with 20 segments
- Over-temperature limiter with manual reset for thermal protection class in accordance with EN 60519-2
- Manual operation of the process gas and vacuum functions
- Manual gas supply for one process gas (N2 or Ar) with adjustable flow
- Bypass with manual valve for rapid filling or flooding of furnace chamber
- Manual gas outlet with overflow valve (20 mbar relative)
- Single-stage rotary vane pump with ball valve for pre-evacuating and heat treatment in a rough vacuum to 5 mbar
- Pressure gauge for visual pressure monitoring
Additional equipment:
- Tmax 2400 °C
- Housing, optionally divisible, for passing through narrow door frames (VHT 08)
- Manual gas supply for second process gas (N2 or Ar) with adjustable flow and bypass
- Inner process box made of molybdenum or CFC, especially recommended for debinding processes. The box is installed in the furnace with direct gas inlet and outlet and provides for better temperature uniformity. Due to a change in gas supply direction after debinding a clean process atmosphere for sintering is achieved.
- Charge thermocouple with display
- Two-stage rotary vane pump with ball valve for pre-evacuating and heat-treating in a vacuum to 10-2 mbar
- Temperature measurement at 2200 °C with pyrometer and thermocouple, type S with automatic pull-out device for precise control results in the low temperature range (VHT 40 and larger)
- Turbo molecular pump with slide valve for pre-evacuation and for heat treatment in a vacuum to 10-5 mbar including electric pressure transducer and booster pump (only VHT…/MO)
- Heat exchanger with closed-loop cooling water circuit
- Automation package with graphic touch panel H 3700
12" graphic touch panel H 3700
Input of all process data like temperatures, heating rates, gas injection, vacuum at the touch panel
Display of all process-relevant data on a process control diagram
Automatic gas supply for one process gas (N2 , argon or forming gas) with adjustable flow
Bypass for flooding and filling the chamber with process gas controlled by the program
Automatic pre- and post programs, including leak test for safe furnace operation
Automatic gas outlet with bellows valve and overflow valve (20 mbar)
Transducer for absolute and relative pressure
- MFC flow controller for alternating volume flow and generation of gas mixtures with second process gas (only with automation package)
- Partial pressure operation: protective gas flushing at controlled underpressure (only with automation package)
- PC control via NCC with corresponding optional documentation and connection to customer PC networks
| Model | Inner dimensions of retort in mm | Volume | ||
|---|---|---|---|---|
| w | d | h | in l | |
| VHT 8/.. | 120 | 210 | 150 | 4 |
| VHT 40/.. | 280 | 430 | 250 | 30 |
| VHT 100/.. | 430 | 530 | 400 | 91 |
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