Forced Convection Bogie Hearth Furnaces electrically heated or gas-fired
They are ideal for processes such as solution annealing, artificial ageing, annealing or soft annealing, for which a high degree of temperature uniformity is crucial.
Function and equipment
The forced convection bogie hearth furnaces W 1000/60A - W 8300/85A are used when heavy charges weighing have to be heat-treated. They are ideal for processes such as solution annealing, artificial ageing, annealing or soft annealing, for which a high degree of temperature uniformity is crucial. The high-performance air circulation assures that the temperature uniformity achieved throughout the work space is outstanding. A broad selection of additional equipment enables these bogie hearth furnaces to be optimally adapted to suit specific processes.
- Tmax 600 °C or 850 °C
- Dual shell housing with rear ventilation provides for low shell temperatures for the 850 °C models
- Swing door hinged on the right side
- Heating from chrome steel heating elements for the 600 °C models
- Heating from three sides (both side walls and the trolley) for the 850 °C models. Bottom heating protected by SiC tiles.
- Perforated sheet support or charging grid on the bogie for even load distribution
- High-performance air circulation fan with vertical circulation
- Temperature uniformity up to +/− 5 °C according to DIN 17052-1
- Furnace chamber fitted with inner sheets made of stainless steel 1.4301 for 600 °C models and of 1.4828 for 850 °C models
- Insulation structured with high-quality mineral wool for 600 °C models
- Bogies with flanged wheels running on rails for easy and precise movement of heavy loads
- Electric chain-driven bogie in combination with rail operation for smooth movement of heavy loads from model W 4800
- Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load
- Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as “refractory ceramic fiber” (RCF), which is classified and possibly carcinogenic, is not used.
- Defined application within the constraints of the operating instructions
- Controller with touch operation B500 (5 programs with 4 segments each)
- NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
- Freeware NTEdit for convenient program input via ExcelTM for WindowsTM on the PC
- Freeware NTGraph for evaluation and documention of firings using ExcelTM for WindowsTM on the PC
- MyNabertherm App for online monitoring of the firing on mobile devices for free download
Additional equipment
- Direct gas heating or upon request with indirect gas heating with radiation tube
- Electric chain-driven bogie in combination with rail operation for smooth movement of heavy loads up to Model W 4000
- Optimization of the temperature uniformity up +/− 3 °C according to DIN 17052-1 see page 94
- Different possibilities for an extension to a bogie hearth furnace plant:
- Additional bogies
- Bogie transfer system with parking rails to exchange bogies running on rails or to connect multiples furnaces
- Motor-driven bogies and cross-traversal system
- Fully automatic control of the bogie exchange
- Electro-hydraulic lift door
- Motorized fresh-air and exhaust air flaps, adjustable via the program
- Cooling systems for faster rapid cooling
- Bar supports with grids for higher charge weights and/or better load distribution with point leads
- Process control and documentation via VCD software package for monitoring, documentation and control
Technical specifications
Model | Tmax | Inner dimensions in mm | Volume | Max. charging weight | Outer dimensions1 in mm | Heating power | Electrical | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
°C | w | d | h | in l | in kg | W | D | H | in kW2 | connection | |
W 1000/.. A | 600 | 800 | 1600 | 800 | 1000 | 800 | 1780 | 2450 | 2350 | 48 | 3-phase |
W 1600/.. A | 600 | 1000 | 1600 | 1000 | 1600 | 1000 | 1920 | 2450 | 2510 | 48 | 3-phase |
W 2200/.. A | 600 | 1000 | 2250 | 1000 | 2200 | 1500 | 1980 | 3100 | 2560 | 96 | 3-phase |
W 3300/.. A | 600 | 1200 | 2250 | 1200 | 3300 | 1900 | 2180 | 3100 | 2750 | 96 | 3-phase |
W 4000/.. A | 600 | 1500 | 2250 | 1200 | 4000 | 2400 | 2480 | 3100 | 2800 | 120 | 3-phase |
W 4800/.. A | 600 | 1200 | 3300 | 1200 | 4800 | 2800 | 2180 | 4380 | 2850 | 120 | 3-phase |
W 6000/.. A | 600 | 1500 | 3300 | 1200 | 6000 | 3700 | 2480 | 4380 | 2900 | 144 | 3-phase |
W 6600/.. A | 600 | 1200 | 4600 | 1200 | 6600 | 4000 | 2280 | 5680 | 2780 | 144 | 3-phase |
W 7500/.. A | 600 | 1400 | 3850 | 1400 | 7500 | 4000 | 2380 | 4930 | 3020 | 144 | 3-phase |
W 8300/.. A | 600 | 1500 | 4600 | 1200 | 8300 | 5200 | 2580 | 5680 | 2950 | 192 | 3-phase |
W 1000/.. A | 850 | 800 | 1600 | 800 | 1000 | 800 | 1780 | 2450 | 2350 | 45 | 3-phase |
W 1600/.. A | 850 | 1000 | 1600 | 1000 | 1600 | 1000 | 1920 | 2450 | 2510 | 45 | 3-phase |
W 2200/.. A | 850 | 1000 | 2250 | 1000 | 2200 | 1500 | 1980 | 3100 | 2560 | 90 | 3-phase |
W 3300/.. A | 850 | 1200 | 2250 | 1200 | 3300 | 1900 | 2180 | 3100 | 2750 | 90 | 3-phase |
W 4000/.. A | 850 | 1500 | 2250 | 1200 | 4000 | 2400 | 2480 | 3100 | 2800 | 110 | 3-phase |
W 4800/.. A | 850 | 1200 | 3300 | 1200 | 4800 | 2800 | 2180 | 4380 | 2850 | 110 | 3-phase |
W 6000/.. A | 850 | 1500 | 3300 | 1200 | 6000 | 3700 | 2480 | 4380 | 2900 | 140 | 3-phase |
W 6600/.. A | 850 | 1200 | 4600 | 1200 | 6600 | 4000 | 2280 | 5680 | 2780 | 140 | 3-phase |
W 7500/.. A | 850 | 1400 | 3850 | 1400 | 7500 | 4000 | 2380 | 4930 | 3020 | 140 | 3-phase |
W 8300/.. A | 850 | 1500 | 4600 | 1200 | 8300 | 5200 | 2580 | 5680 | 2950 | 185 | 3-phase |
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 2Depending on furnace design connected load might be higher |
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Further products
Catalog
A complete overview of our extensive range of furnaces and plants that are used for heat treatment processes in air can be found in our catalog "Thermal Process Technology 1, furnaces and heat treatment plants for processes under air".