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  NR 75/06 with automatic gas injection and touch panel H 3700 NR 17/06 with gas supply system

Inside heating in models NRA ../06

Heating from outside around the retort in models NRA ../09 and NR ../11

NRA 17/06 - NRA 1000/11

These gastight retort furnaces are equipped with direct or indirect heating depending on temperature. They are perfectly suited for various heat treatment processes requiring a defined protective or a reaction gas atmosphere. These compact models can also be laid out for heat treatment under vacuum up to 600 °C. The furnace chamber consists of a gastight retort with water cooling around the door to protect the special sealing. Equipped with the corresponding safety technology, retort furnaces are also suitable for applications under reaction gases, such as hydrogen or, in combination with the IDB package, for inert debinding or for pyrolysis processes.

Different model versions are available depending on the temperature range required for the process:

Models NRA ../06 with Tmax 650 °C

  • Heating elements located inside the retort
  • Temperature uniformity up to ∆T 6 K inside the working chamber from 100  °C - 600  °C
  • Retort made of 1.4571
  • Gas circulation fan in the back of the retort provides for optimal temperature uniformity

Models NRA ../09 with Tmax 950 °C

  • Outside heating with heating elements surrounding the retort as well as an additional door heater
  • Temperature uniformity up to ∆T 6 K inside the working chamber from 200  °C - 900  °C
  • Retort made of 1.4841
  • Fan in the back of the retort provides for optimal temperature uniformity

Models NR ../11 with Tmax 1100 °C

  • Outside heating with heating elements surrounding the retort as well as an additional door heater
  • Temperature uniformity up to ∆T 10 K inside the working chamber from 200  °C - 1050  °C
  • Retort made of 1.4841
 

 

   
   

NRA 50/09 H2

Customized furnace NRA 480/04

Vacuum pump for cold evacuation of the retort

Basic version

  • Compact housing in frame design with removable stainless steel sheets
  • Controls and gas supply integrated in the furnace housing
  • Welded charging supports in the retort or air-baffle box in the furnace with air circulation
  • Swivel door hinged on right side with open cooling water system
  • Multi-zone control for 950  °C and 1100  °C version, separated by furnace chamber and door. Depending on furnace chamber additionally subdivided into one or several heating zones
  • Temperature control as charge control with temperature measurement inside and outside the retort
  • Gas supply system for one non-flammable protective or reaction gas with flow meter and solenoid valve, switchable via the control system
  • Operation under vacuum up to 600  °C with optional single-stage rotary vane pump
  • Port for vacuum pump for cold evacuation
  • PLC controls with touch panel H 700 for data input (resp. P 300 for 650  °C-version)

Additional equipment

  • Upgrade for other non-flammable gases
  • Automatic gas injection, including MFC flow controller for alternating volume flow, PLC controlled with touch panel H 3700
  • Vacuum pump for evacuating of the retort up to 600  °C, attainable vacuum up to 10-5 mbar subject to selected pump
  • Cooling system for shortening process times
  • Heat exchanger with closed-loop cooling water circuit for door cooling
  • Measuring device for residual oxygen content
 

 

 
  NR 200/11 H2 for heat treatment under hydrogen Charging of the NR 300/06 furnace with a pallet truck

Bayonet quick-lock for the retort, also with electric drive as additional equipment

Parallel guided door to open the hot furnace as additional equipment

H2 Version for Operation under Hydrogen

When hydrogen is used as a process gas, the furnace is additionally equipped with the required safety technology. Only certified and industry proven safety sensors are used. The furnace is controlled by a fail-safe PLC control system (S7- 300F/safety controller).

  • H2 supply at controlled overpressure of 50 mbar relative
  • Certified safety concept
  • PLC controls with graphic touch panel H 3700 for data input
  • Redundant gas inlet valves for hydrogen
  • Monitored pre-pressures of all process gases
  • Bypass for safe flushing of furnace chamber with inert gas
  • Torch for thermal afterburning of exhaust gases
  • Emergency flood container for purging the furnace in case of failore
 

 

   
   

Blueing of drills in water steam atmosphere in a furnace of the NRA range

IDB Version for Debinding under Non-flammable Protective or Reactive Gases or for Pyrolysis Processes

The retort furnaces of the NR and NRA product line are perfectly suited for debinding under protective gases or for pyrolysis processes. The IDB version of the furnaces implements a safety concept by controlled purging the furnace chamber with a protective gas. Exhaust gases are burned in an exhaust torch. Both the purging and the torch function are monitored to ensure a safe operation.

  • Process control under monitored and controlled overpressure of 50 mbar relative
  • Certified safety concept
  • PLC controls with graphic touch panel H 1700 for data input
  • Monitored gas pre-pressure of the process gas
  • Bypass for safe flushing of furnace chamber with inert gas
  • Torch for thermal afterburning of exhaust gases
ModelTmaxModelTmaxWorking chamber dimensions in mmUseful volumeElectrical
 °C °Cwdhin lconnection*
NRA 17/.. 650 or 950 NR 17/11 1100 225 350 225 17 3-phase
NRA 25/.. 650 or 950 NR 25/11 1100 225 500 225 25 3-phase
NRA 50/.. 650 or 950 NR 50/11 1100 325 475 325 50 3-phase
NRA 75/.. 650 or 950 NR 75/11 1100 325 700 325 75 3-phase
NRA 150/.. 650 or 950 NR 150/11 1100 450 750 450 150 3-phase
NRA 200/.. 650 or 950 NR 200/11 1100 450 1000 450 200 3-phase
NRA 300/.. 650 or 950 NR 300/11 1100 570 900 570 300 3-phase
NRA 400/.. 650 or 950 NR 400/11 1100 570 1250 570 400 3-phase
NRA 500/.. 650 or 950 NR 500/11 1100 720 1000 720 500 3-phase
NRA 700/.. 650 or 950 NR 700/11 1100 720 1350 720 700 3-phase
NRA 1000/.. 650 or 950 NR 1000/11 1100 870 1350 870 1000 3-phase
*Please see page 61 for more information about supply
 

 

SRA 200/09 Retort furnace SRA 300/09
 
SRA 17/.. - SR 1500

The retort furnaces SR and SRA (with gas circulation) are designed for operation with non-flammable or flammable protective or reaction gases. The furnace is loaded from above by crane or other lifting equipment provided by the customer. In this way, even large charge weights can be loaded into the furnace chamber.

Depending on the temperature range in which the furnace be used, the following models are available:

Models SR .../11 with Tmax 1100 °C

  • Heating from all sides outside the retort
  • Temperature uniformity up to ∆T 14 K according to DIN 17052-1 within the working chamber of 500  °C - 1100  °C
  • Retort made of 1.4841
  • Top down multi-zone control of the furnace heating

Models SRA ../09 with Tmax 950 °C

  • Design like models SR…/11 with following differences:
    • Atmosphere circulation with powerful fan in the furnace lid provides for temperature uniformity up to ∆T 8 K according to DIN 17052-1 within the working chamber of 200  C - 900  C

Models SRA ../06 with Tmax 600 °C

  • Design like models SRA…/09 with following differences: see page 60
    • Heating inside the retort
    • Temperature uniformity up to ∆T 14 K according to DIN 17052-1 within the working chamber of 100  C - 600  C
    • Single-zone control
    • Retort made of 1.4841

Standard Equipment (all models)

  • Design like standard equipment of models NR and NRA with following differences:
    • Charging from above with crane or other lifting equipment from customer
    • Hinged lid with opening to the side
  • Additional equipment, H2 version or IDB version see models NR and NRA
ModelTmaxInside dimensions of alloy retortVolumeOuter dimensions in mmConnected load/kWElectricalWeight
 °CØ in mmh in mmin lWDH600 °C950 °Cconnection*in kg
SRA 17/..   250 350 17 1300 1700 1800 15 20 3-phase 600
SRA 25/..   250 500 25 1300 1900 1800 20 25 3-phase 800
SRA 50/..   400 450 50 1400 2000 1800 36 35 3-phase 1300
SRA 100/.. 600 400 800 100 1400 2000 2100 45 65 3-phase 1500
SRA 200/.. or 600 700 200 1600 2200 2200 60 90 3-phase 2100
SRA 300/.. 950 600 1000 300 1600 2200 2500 75 120 3-phase 2400
SRA 500/..   800 1000 500 1800 2400 2700 70 170 3-phase 2800
SRA 600/..   800 1200 600 1800 2400 2900 90 190 3-phase 3000
SRA 800/..   1000 1000 800 2000 2600 2800 105 220 3-phase 3100
SRA 1000/..   1000 1300 1000 2000 2600 3100 120 250 3-phase 3300
SRA 1500/..   1200 1300 1500 2200 2800 3300 150 300 3-phase 3500
                       
SR 17/11 1100 250 350 17 1300 1700 1800 22 3-phase 600
SR 25/11 1100 250 500 25 1300 1900 1800 27 3-phase 800
SR 50/11 1100 400 450 50 1400 2000 1800 40 3-phase 1300
SR 100/11 1100 400 800 100 1400 2000 2100 73 3-phase 1500
SR 200/11 1100 600 700 200 1600 2200 2200 98 3-phase 2100
SR 300/11 1100 600 1000 300 1600 2200 2500 132 3-phase 2400
SR 500/11 1100 800 1000 500 1800 2400 2700 182 3-phase 2800
SR 600/11 1100 800 1200 600 1800 2400 2900 205 3-phase 3000
SR 800/11 1100 1000 1000 800 2000 2600 2800 235 3-phase 3100
SR 1000/11 1100 1000 1300 1000 2000 2600 3100 268 3-phase 3300
SR 1500/11 1100 1200 1300 1500 2200 2800 3300 315 3-phase 3500
*Please see page 61 for more information about supply
 

Cold-Wall Retort Furnaces up to 2400 °C

 
  VHT 8/22-KE with fiber insulation and molybdenum disilicide heating elements VHT 500/22-GR H2 with extension package for operation under vacuum and CFC-process box

Heat treatment of copper bars under hydrogen in VHT 08/16 MO

VHT 8/18-GR - VHT 100/18-KE

The compact furnaces of the VHT product line are available as electrically heated chamber furnaces with graphite, molybdenum or MoSi2 heating. A wide variety of heating designs as well as a complete range of accessories provide for optimal furnace configurations even for sophisticated applications.

The vacuum-tight retort allows heat treatment processes either in protective and reaction gas atmospheres or in a vacuum, subject to the individual furnace specs to 10-5 mbar. The basic furnace is suited for operation with non-flammable protective or reactive gases or under vacuum.

The H2 version provides for operation under hydrogen or other flammable gases. Key of the specification up is a certified safety package providing for a safe operation at all times and triggers an appropriate emergency program in case of failure.

If you intend to debind in an inert atmosphere, we recommend the use of a process box. The exhaust gases are vented directly from the box to the exhaust gas torch.

Alternative Heating Specifications

The following heating systems are available for the different application temperatures:

VHT ../GR with Graphite Insulation and Heating

  • Suitable for processes under protective and reaction gases or under vacuum
  • Tmax 1800  °C or 2200  °C
  • Max. vacuum up to 10-2 mbar depending on pump type used
  • Graphite felt insulation
  • Temperature measurement using type B thermocouple (version to 1800  °C)
  • Temperature measurement using optical pyrometer (version to 2200  °C)
 

 

   
   

Graphite heating chamber

Molybdenum or tungsten heating chamber

Ceramic fiber insulation

VHT ../MO or ../W with Molybdenum or Tungsten Heating

  • Suitable for high-purity processes under protective and reaction gases or under high vacuum
  • Tmax 1200  °C, 1600  °C or 1800  °C (see table)
  • Max. vacuum up to 5 x10-5 mbar depending on pump type used
  • Insulation made of Molybdenum steel sheets
  • Temperature measurement with thermocouple, type S for models with 1200  °C
  • Temperature measurement with thermocouple, type B for models with 1600  °C and 1800  °C

VHT ../KE with Fiber Insulation and Heating through Molybdenum Disilicide Heating Elements

  • Suitable for processes under protective and reaction gases, in air or under vacuum
  • Tmax 1800  °C
  • Max. vacuum up to 10-2 mbar (up to 1300  °C) depending on pump type
  • Insulation made of high purity aluminum oxide fiber
  • Temperature measurement by thermocouple type B
 VHT ...-../GRVHT ...-16/MOVHT ...-18/WVHT ...-18/KE
Inert gas
Air to 400 °C - -
Hydrogen √¹
Rough vacuum and fine vacuum (>10-3 mbar) √²
High vacuum (-√√-
Oxygen - - -
 
 

Standard Equipment for all Models

 
VHT 40/16MOH2  

Single-stage rotary vane pump for heat treatment in a rough vacuum to 20 mbar

Two-stage rotary vane pump for heat treatment in a vacuum to 10-2 mbar

Turbo-molecular pump with booster pump for heat treatment in a vacuum to 10-5 mbar

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
ModelInner dimensions of retort in mmVolume
 wdhin l
VHT 8/.. 120 210 150 4
VHT 40/.. 280 430 250 30
VHT 100/.. 430 530 400 91
 

 

 
  VHT 08/16 MO with hydrogen extension package as automatic version
 
H2 Version VHT…/MO-H2 or VHT…/GR-H2 for Operation with Hydrogen or other Reaction Gases

In the H2 version the furnaces of the VHT…/MO or VHT…/GR product line can be operated under hydrogen or other reaction gases. For these applications, the systems are additionally equipped with the required safety technology. Only certified and industry proven safety sensors are used. The furnaces are controlled by a fail-safe PLC control system (S7-300F/safety controller).

  • Certified safety concept
  • Automation package (see additional equipment above)
  • Redundant gas inlet valves for hydrogen
  • Monitored pre-pressures of all process gases
  • Bypass for safe purging of furnace chamber with inert gas
  • Pressure-monitored emergency flooding with automated solenoid valve opening
  • Electric or gas-heated exhaust gas torch for H2 post-combustion
  • Atmospheric operation: H2-purging of process reactor starting from room temperature at controlled over pressure (50 mbar relative)

Additional equipment

  • Partial pressure operation: H2 flushing at underpressure in the process reactor starting from 750  °C furnace chamber temperature
  • Retort in the process chamber for debinding under hydrogen
 

 

   
   

VHT gas supply diagram, debinding and sintering

Process Box for Debinding in Inert Gas

Certain processes require charges to be debinded in non-flammable protective or reactive gases. For these processes we fundamentally recommend a hot-wall retort furnace (see models NR… or SR…). These furnaces can ensure that the formation of condensation will be avoided as throughly as possible.

If there is no way to avoid the escape of small amounts of residual binder during the process, even in the VHT furnace, the furnace should be designed to meet this contingency.

The furnace chamber is equipped with an additional process box that has a direct outlet to the exhaust gas torch through which the exhaust gas can be directly vented. This system enables a substantial reduction in the amount of furnace chamber contamination caused by the exhaust gases generated during debinding.

Depending on the exhaust gas composition the exhaust gas line can be designed to include various options.

  • Exhaust gas torch for burning off the exhaust gas
  • Condensation trap for separating out binding agents
  • Exhaust gas post-treatment, depending on the process, via scrubbers
  • Heated exhaust gas outlet to avoid condensation deposits in the exhaust gas line
ModelTmaxInner dimensions in mmVolumeOuter dimensions in mmConnectedElectricalWeightMaterial heater/
 °Cwdhin lWDHload kW1connection*in kginsulation
VHT 8/..-GR 1800 170 240 200 8 1250 (800)¹ 1100 2000 27 3-phase² 1200 Graphite/graphite felt
VHT 40/..-GR or 300 450 300 40 1600 2100 2300 83/103³ 3-phase 2000 Graphite/graphite felt
VHT 70/..-GR 2200 375 500 375 70 1700 2500 2400 105/125³ 3-phase 2400 Graphite/graphite felt
VHT 100/..-GR   450 550 450 100 1900 2600 2500 135/155³ 3-phase 2800 Graphite/graphite felt
                         
VHT 8/..-MO 1200 170 240 200 8 1250 (800)¹ 1100 2700 15/344 3-phase² 1200 Molybdenum
VHT 40/..-MO or 300 450 300 40 1600 2600 2300 50/1104 3-phase 3000 Molybdenum
VHT 70/..-MO 1600 375 500 375 70 1700 2800 2400 70/1404 3-phase 3500 Molybdenum
VHT 100/..-MO   450 550 450 100 1900 3000 2500 90/1804 3-phase 4000 Molybdenum
                         
VHT 8/18-W 1800 170 240 200 8 1250 (800)¹ 1100 2700 50 3-phase² 1700 Tungsten/molybdenum
VHT 40/18-W 1800 300 450 300 40 1600 2600 2300 130 3-phase 3500 Tungsten/molybdenum
VHT 70/18-W 1800 375 500 375 70 1700 2800 2400 160 3-phase 4000 Tungsten/molybdenum
VHT 100/18-W 1800 450 550 450 100 1900 3000 2500 210 3-phase 4500 Tungsten/molybdenum
                         
VHT 8/18-KE 1800 170 240 200 8 1250 (800)¹ 1100 2000 12 3-phase² 1200 MoSi2/ceramic fiber
VHT 40/18-KE 1800 300 450 300 40 1600 2100 2300 30 3-phase 2000 MoSi2/ceramic fiber
VHT 70/18-KE 1800 375 500 375 70 1700 2500 2400 55 3-phase 2400 MoSi2/ceramic fiber
VHT 100/18-KE 1800 450 550 450 100 1900 2600 2500 85 3-phase 2800 MoSi2/ceramic fiber
¹With the switching system unit removed *Please see page 61 for more information about supply. ²Only heating between two phases 41200 °C/1600 °C ³1800 °C/2200 °C 1For operation under hydrogen a higher power rating has to be considered
 

Lift-Bottom-Retort Furnace up to 2400 °C for Production

LBVHT 600/24 GR LBVHT 250/18 WO with tungsten heating chamber

LBVHT with graphite heating chamber

LBVHT 100/16 - LBVHT 600/24

The LBVHT product line with lift-bottom specification are especially suitable for production processes which require either protective or reaction gase atmosphere or a vacuum. The basic performance specifications of these models are similar to the VHT models. Their size and design with electro-hydraulically driven table facilitate charging during production. The furnaces are available in various sizes and designs. Similar like the VHT models, these furnaces can be equipped with different heating concepts.

  • Standard furnace sizes between 100 and 600 liters
  • Designed as lift-bottom retort furnace with electro-hydraulically driven table for easy and well-arranged charging
  • Prepared to carry heavy charge weights
  • Different heating concepts using
    • Graphite heating chamber up to Tmax 2400  C
    • Molybdenum heating chamber up to Tmax 1600  C
    • Tungsten heating chamber up to Tmax 1800  C
  • Frame structure filled with textured stainless steel sheets
  • Standard design with gassing system for non-flammable protective or reaction gases
  • Automatic gas supply system which also allows for operation with several process gases as additional equipment
  • Gas supply systems for operating with hydrogen or other flammable reaction gases incl. safety package as additional equipment
  • Switchgear and control box as well as gassing system integrated into the furnace housing
  • Further product characteristics of the standard furnace as well as possible additional equipment can be found in the description of the VHT furnaces
ModelTmaxModelTmaxModelTmaxInner dimensions in mmVolumeElectrical
 °C °C °CØhin lconnection*
LBVHT 100/16-MO 1600 LBVHT 100/18-WO 1800 LBVHT 100/24-GR 2400 450 700 100 3-phase
LBVHT 250/16-MO 1600 LBVHT 250/18-WO 1800 LBVHT 250/24-GR 2400 600 900 250 3-phase
LBVHT 600/16-MO 1600 LBVHT 600/18-WO 1800 LBVHT 600/24-GR 2400 800 1200 600 3-phase
*Please see page 61 for more information about supply
 

Pit-Type Cold-Wall Retort Furnaces up to 2400 °C or up to 3000 °C

 
  SVHT 9/24-W with tungsten heating

Cylindrical retort with tungsten heating

Graphite heating module

Water-cooling controls

SVHT 2/24-W - SVHT 9/30-GR

Compared with the VHT models (page 52), the furnaces of the SVHT product line offer improved performance data with regard to achievable vacuum and maximum temperature. Due to the design as pit-type furnace with tungsten heating, processes up to max. 2400 °C even in high vacuum can be implemented with models of the SVHT..-W product line. Models of the SVHT..-GR product line with graphite heating, also in pit-type design, can be operated in an inert gas atmosphere even up to max. 3000 °C.

  • Standard sizes with a furnace chamber of 2 or 9 liters
  • Designed as pit-type furnace, charged from above
  • Frame construction with inserted sheets of textured stainless steel
  • Dual shell water-cooled stainless steel container
  • Manual operation of process gas and vacuum functions
  • Manual gas supply for non-flammable process gas
  • A step in front of the furnace for an ergonomic charging height
  • Retort lid with gas-charged shock absorbers
  • Controls and switchgear as well as gas supply integrated in furnace housing
  • Further standard product characteristics see description for standard design of VHT models

Heating options

SVHT ..-GR

  • Applicable for processes:
    • under protective or reactive gases or in the vacuum up to 2200  C
    • under inert gases (argon, helium) up to 3000  C
  • Max. vacuum up to 10-³ mbar depending on the type of pump used
  • Heating: graphite heating elements in cylindrical arrangement
  • Insulation: graphite felt insulation
  • Temperature measurement by means of an optical pyrometer

SVHT ..-W

  • Applicable for processes under protective or reaction gases or in vacuum up to 2400  °C
  • Max. vacuum up to 10- mbar depending on the type of pump used
  • Heating: cylindrical tungsten heating module
  • Insulation: tungsten and molybdenum radiant plates
  • Temperature measurement with optical pyrometer
  • Additional equipment such as automatic process gas control or design for the operation with flammable gases incl. safety system see VHT models
ModelTmaxWorking chamber dimensionsUseful volumeOuter dimensions in mmConnectedElectrical
 °CØ x h in mmin lWDHload KWconnection*
SVHT 2/24-W 2400 150 x 150 2,5 1400 2500 2100 55 3-phase
SVHT 9/24-W 2400 230 x 230 9,5 1500 2750 2100 95 3-phase
                 
SVHT 2/30-GR 3000 150 x 150 2,5 1400 2500 2100 55 3-phase
SVHT 9/30-GR 3000 230 x 230 9,5 1500 2750 2100 95 3-phase
*Please see page 61 for more information about supply

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