Used Chamber Circulating Air Oven 250°C for sale (73,911)

Condition: as good as new (ex-display), Year of construction: 2023, functionality: fully functional, New machine warranty, in-stock item, original packaging, available for immediate delivery. Equipped with a safety system for solvent-based substances according to DIN 1539. Matching loading carts in stock (see photo). Contact us! - Internal dimensions (W x D x H): 1000 x 1000 x 1500 mm - External dimensions (W x D x H): 1900 x 1430 x 2315 mm - Capacity: 1500 liters - Max temperature: 260°C - Controller: P570 / 50 programs, each with 40 freely programmable segments - NtLog for data logging via USB stick - Air circulation: 3600 m³/h - Exhaust air flow: 390 m³/h - Additional features: drive-in rails - Connected load: 39 kW - Net weight: 1150 kg - Including documentation, CE declaration Installation and commissioning available upon request. Inspection at our warehouse possible by appointment. We offer new and used industrial ovens. Contact us! Keywords: Oven, Ovens, Drying oven, Firing kiln, Heat oven, Heating cabinet, Industrial oven, Convection oven, Convection chamber dryer, Tempering oven, Preheating oven, Temperature oven, Drying cabinet, Chamber kiln, Curing oven, Forced-air drying cabinet, Forced-air oven, Solvent oven, Chamber dryer, Paint dryer. Podpfx Alol Dw T Ajwerb

Condition: excellent (used), Here we offer you a chamber convection oven. Pjdpfxozd Rxvo Alworb Usable internal dimensions: Height mm 900 / Width mm 600 / Depth mm 600 324 liters External dimensions: Height mm 1775 / Width mm 900 / Depth mm 953 Number of door panels: 1 Connection rating: 3X400V 50 Hz 10 kVA Heating power: 9 kW Rated temperature: 250°C Weight: 300 kg Type: KU 250/09-06-06 K1030852 Condition: used Scope of delivery: (See image) (Changes and errors in the technical data are subject to change!) We will gladly answer any further questions you may have over the phone.

Condition: like new (used), Year of construction: 2017, functionality: fully functional, 2 units of recirculating air chamber furnaces, fast heating times, short process times, electric, 12-month warranty, available for immediate delivery. - Temperature 200°C, can be increased to 250°C! - Charging car, 5 units available, modification on request. - Homogeneous temperature distribution of +/- 10°C. - Internal dimensions (W x D x H): 3750 x 1400 x 2300 mm - External dimensions (W x D x H): 4850 x 1705 x 3880 mm - Usable volume: 11.6 m³ - Control system: S!MPAC with touch panel - Program execution with a good sensor as a cascade control system - Temperature limiter - Signal tower - Directly accessible, with grid rails - Exhaust air volume flow: 140 m³/min - Electromagnetic door locking system - Rated power: 180 kW - Connection power: 241 kW!! - Weight: approx. 3500 kg Psdpsy Tkfwefx Alwerb - Documentation, CE declaration of conformity We would be pleased to offer transport, installation, and training for your employees. Inspection in our machine hall is possible at any time by appointment. Furnace, Oven, Furnaces, Drying oven, Industrial oven, Drying cabinet, Heat oven, Heat cabinet, Recirculating air oven, Chamber oven, Heating oven, Chamber recirculating air oven, Tempering oven, Temperature oven, Recirculating air chamber oven, Hardening oven, Vötsch oven, Weisstechnik, Fusing oven, Curing oven, Post-curing of liquid crystal windows, CFRP support structure, Oven for glass, Glass tempering oven, Glass fusing oven, Glass hardening oven, bogie hearth furnace, car hearth furnace, shuttle kiln, bogie hearth kiln.

Condition: like new (used), Year of construction: 2017, functionality: fully functional, 2 recirculating air chamber furnaces, fast heating times, short process times, electric, 12-month warranty, immediately available -Temperature 200°C, increase to 250°C possible upon request -Charging car, 5 units available, modification possible upon request -Homogeneous temperature distribution of +/- 10 °C -Internal dimensions W x D x H: 3750 x 1400 x 2300 mm -External dimensions W x D x H: 4850 x 1705 x 3880 mm -Usable volume 11.6 m³ -Control system S!MPAC with touch panel Psdpfx Ajy Avqwjlwjrb -Program execution with good sensor as cascade control -Temperature limiter -Signal tower -Directly accessible, with grid rails -Exhaust air volume flow 140 m³/min -Electromagnetic door lock -Rated power 180 KW -Connection 241 KW!!! -Weight approx. 3500 kg -Documentation, CE declaration of conformity We would be happy to offer transport, installation, and training for your employees. Inspection in our machine hall is possible at any time by appointment. Furnace, Oven, Ovens, Drying oven, Industrial oven, Drying cabinet, Heat oven, Heat cabinet, Recirculating air oven, Chamber oven, Heating oven, Chamber recirculating air oven, Tempering oven, Temperature oven, Recirculating air chamber oven, Hardening oven, Vötsch oven, Weisstechnik, Fusing oven, Fusing, Postcuring, Post-curing of liquid crystal windows, CFRP support structures, CFRP support structure, Curing oven, Oven for glass, Glass tempering oven, Glass fusing oven, Glass hardening oven, bogie hearth furnace, car hearth furnace, shuttle kiln, bogie hearth kiln.

Condition: refurbished (used), Year of construction: 2011, functionality: fully functional, Fully refurbished, in stock, warranty 12 months, no solvent oven! - Maximum temperature 250 °C - Total steam volume 20.5 m³ - Usable dimensions (L x W x H) 2300 x 2750 x 2200 mm - Control system Jumo Imago 500 - Heating power 36 kW - Maximum load of the furnace car 6000 kg, electrically driven - Electric inlet and outlet air dampers Belimo - Exhaust fan controlled via frequency inverter - Installation dimensions (L x W x H) 3000 x 3000 x 3125 mm plus track in front of the oven - Own weight approx. 3500 kg - Freestanding control cabinet - Documentation - Electrically tested and with current DGUV test report Podsttbf Uepfx Alwerb Inspection in our warehouse by appointment. Hearth furnace, oven, industrial oven, convection oven, chamber convection oven, annealing oven, heat treatment oven, drying oven, tempering oven, chamber oven, drying cabinet, hardening oven, bogie hearth furnace, car hearth furnace, shuttle kiln, bogie hearth kiln.

Condition: excellent (used), I am offering a Heraeus Kendro UT 6 P laboratory oven with a digital Function Line controller. This device is designed for drying, heating, sterilization, and thermal processing of samples in laboratories, research facilities, and industrial plants. The oven is in perfect working order. The stainless steel chamber is clean and in good condition. It is equipped with a grate and guides that allow for adjusting the shelf height. Technical data: Manufacturer: Heraeus / Kendro Laboratory Products Model: UT 6 P Maximum temperature: 250°C Power supply: 230 V / 50–60 Hz Power: 1.27 kW Rated current: 5.5 A Protection class: IP20 Pedpfozmamuex Alworb Control: digital Function Line panel Stainless steel chamber Forced air circulation for uniform temperature distribution Condition: used, in working order

Condition: new, Year of construction: 2027, Recirculating air chamber oven, electric, new unit, delivery time 17-18 weeks -Temperature 300°C -Internal dimensions W x D x H: 1500 x 3000 x 2000 mm -External dimensions W x D x H: 2410 x 3560 x 2730 mm -Volume: 9000 liters -Control system: Eurotherm Nanodac, 100 programs with 25 segments each -Additional 100 programs can be saved/loaded via FTP or a USB flash drive -2 recirculating air fans -Double door with safety door sensors -Over-temperature protection, Eurotherm 3216i -Control system/recorder with color touch display -Stable steel construction, anthracite exterior -Motorized dampers -Electrical version: 400 V / 50 Hz / 3NPE -Increased heating capacity: approx. 70 kW -Guide rails, recess for driving in a trolley Pjdpfx Alslkb Ezoworb -Documentation, CE declaration of conformity -Electrical wiring diagram with spare parts list We will gladly offer transport, installation, and training for your employees. As a new unit, it is also available with an exhaust fan and other equipment! Delivery time approx. 10-12 weeks. Please contact us! We offer new and used industrial ovens, which we can also modify and supplement according to customer requirements. Inspection in our machine hall is possible at any time by appointment. Oven, ovens, drying oven, industrial oven, drying cabinet, heating oven, heating cabinet, recirculating air oven, chamber oven, heating oven, chamber recirculating air oven, annealing oven, tempering oven.

Year of construction: 2011, condition: like new (used), functionality: fully functional, machine/vehicle number: 11-02/2011, We are offering this as-new GEBER Industrieofenbau GmbH KO/e/u/-3000 chamber circulation oven, year of manufacture 2011. Manufacturer: Geber Industrieofenbau GmbH Model: KO/e/u/-3000 Serial number: 11-02 Year of manufacture: 2011 Rated voltage: 230/400 V Rated current: 125 A Rated heating capacity: 45 kW Heating medium: Electric energy Current type / Frequency: 3-phase / 50/60 Hz Rated temperature: 300 °C Wiring diagram number: 2011 0054 Internal dimensions (WxDxH): 1300x1300x1800 mm Net weight: 2,000 kg Trolley included (see pictures) Documentation, CE declaration supplied We are happy to arrange installation and commissioning through the manufacturer upon request. Predpfjyg Nxbex Alweb Viewing by appointment possible. If you have any questions or require further information, please feel free to send us a message or give us a call.

Condition: excellent (used), Here we offer you a chamber circulation oven. Usable internal dimensions: Height mm 900 / Width mm 600 / Depth mm 600 324 liters External dimensions: Height mm 1775 / Width mm 900 / Depth mm 953 Number of door panels: 1 Connection value: 3X400V 50 Hz 13 kVA Heating power: 12 kW Nominal temperature: 300°C Podszd Rxiopfx Alwsrb Weight: 400 kg Type: KU 300/09-06-06 K111183701 Condition: used Scope of delivery: (See image) (Subject to changes and errors in the technical data and specifications!) We will gladly answer any further questions you may have by phone.

Condition: refurbished (used), Year of construction: 2010, machine/vehicle number: SN214289, functionality: fully functional, Completely overhauled, electrical system renewed including conversion to thyristor technology, as well as installation of new controllers! -Maximum temperature 260°C -Capacity 9000 liters -Nabertherm controller P 300 (9 programs, each with 40 segments) -HAS (High-Accuracy System), a highly accurate system for temperature control and documentation -Double door -Internal dimensions W x D x H 1500 x 3000 x 2000 mm Prjdpfjyxl Epsx Alwob -External dimensions W x D x H 2400 x 3860 x 2830 mm -Temperature limit selector -Thermocouple type K -Signal column -Access ramp, oven with bottom insulation, high temperature uniformity -Circulation rate 18000 m³/h -Power 93 kW -Documentation, CE -Electrically tested and with current DGUV test report The oven is calibrated according to DIN 17052 as of February 2025. This standard ensures that the temperature throughout the oven chamber is within defined tolerances. Suitable for applications such as heat treatment of metals or in additive manufacturing (3D printing) when processes that comply with standards are required. Inspection can be arranged at our warehouse at any time. We offer new and used industrial ovens, which we can also modify and expand according to customer requirements. Oven, furnaces, drying oven, industrial oven, drying cabinet, heat treatment oven, heat chamber, convection oven, chamber oven, heating oven, chamber convection oven, tempering oven, annealing oven, hardening oven.

Condition: excellent (used), Year of construction: 2018, - for unattended operation - for temperatures from 100 °C to 300 °C - external dimensions: 1500 x 2773 x 2096 mm (W x H x L) - clear internal dimensions per chamber: 800 x 800 x 1100 mm (W x H x L), height with beams = 700 mm - maximum batch dimensions: 700 x 600 x 1000 mm (W x H x L); maximum weight: 500 kg Psdpfx Aszbnnwelworb Connection values per chamber: circulation = 3.0 kW (1 unit); electric heating = 30 kW (1 control group) Temperature accuracy +/- 5 K at 150 °C, 250 °C, 300 °C adjustable up to +/- 1.5 K temperature accuracy depending on the batch geometry 1 Protherm 500 program controller

Condition: excellent (used), Year of construction: 2003, functionality: fully functional, drying oven, tempering oven Caltherm 150 C For sale in excellent condition CALTHERM manufactured air mixing multi-purpose Convection oven heat treatment oven Pedjvpagdjpfx Alworb electric heated oven with one chamber, air mixing Max temp: 150°C internal dimensions: length: 200cm height: 200cm width: 100cm electronic heating elements 8pcs air circulation fan: 4kw 380v 50Hz temperature range: 50-160 Celsius external dimensions:

Condition: ready for operation (used), Year of construction: 2021, functionality: fully functional, temperature: 250 °C, power: 30 kW (40.79 HP), Curing oven with two chambers (one programmable heat cycle per chamber)! Equipped with conveyor belt and cleanroom classification! TECHNICAL DETAILS Process area (minimum): 1,700 x 1,400 mm (2.40 m²) MACHINE DETAILS Electrical Data Main power supply: 3x400 V ±5%, 50 Hz ±5% Control voltage: 230 Vac 50 Hz and 24 Vdc Main fuse: 140 A Motor Output Circulating fan motor: 2.2 kW (2 units) Drive motor for vertical transport: 0.39 kW Drive motor for horizontal transport: 0.09 kW Heating Heating type: Electric with sealed tubular elements Output: 30 kW per chamber Temperature range: 50 °C to 250 °C Podpfxsyk Sd Uo Alworb EQUIPMENT Conveyor system Cleanroom classification

Condition: excellent (used), Eliog Here, we offer a chamber circulation oven. Usable internal dimensions: Height mm 900 / Width mm 600 / Depth mm 600 Podpszd Rxcofx Alwerb 324 liters External dimensions: Height mm 1775 / Width mm 900 / Depth mm 953 Number of door leaves: 1 Connection value: 3X400V 50 Hz 13 kVA Heating power: 12 kW Rated temperature: 300°C Weight: 400 kg Type: KU 300/09-06-06/2 K1051071 Condition: used Scope of supply: (See image) (Changes and errors in the technical data are subject to change!) We will gladly answer any further questions you may have by telephone.

Condition: like new (used), Year of construction: 1991, functionality: fully functional, power: 30 kW (40.79 HP), input voltage: 200 V, type of input current: three-phase, pressing force: 250 t, table width: 760 mm, table length: 2,700 mm, overall weight: 35,000 kg, punching force: 250 t, Equipment: documentation/manual, safety light barrier, AIDA NC2-250(1) 250t eccentric press in excellent condition /ctA2/ Prodpfx Asu Dxb Tslwob Manufacturer: AIDA Type: NC2-250(1) Push force: 160t Year of manufacture: approx. 1991 Stroke length: 170mm Distance above table: (adjustable) 280-400mm Table size: 2700x760mm Bear size: 2100x700mm Electrical power: 3x200V(!!), 30kW - Japanese standard Net weight: 35000kg Size: 2760x2800x3980mm Automatic greasing system. Automatic cutting oil dosing - RAZIOL EST-02 Optionally with disc winder and straightener.

Condition: excellent (used), Year of construction: 2016, functionality: fully functional, overall weight: 2,500 kg, cooling capacity: 50 kW (67.98 HP), volume flow: 10 m³/h, The Air Liquide cooling and heating system is a process thermostat designed for optimal and precise temperature control for any application demanding rapid, precise, and powerful thermal control between -80°C and +70°C. The temperature control unit works by thermally conditioning the heat transfer fluid Syltherm XLT within a closed-loop circuit. For cooling, liquid nitrogen (LIN) is used as the cryogenic medium to lower the fluid's temperature. For heating, an integrated electric resistance heater raises the fluid temperature to a maximum of +70°C. The conditioned fluid is then circulated from the unit to the external application to enable precise process temperature control. The system is fully automated, ensuring precise and reliable process control with minimal manual intervention. Original paper documentation is included. • Year of manufacture: 2016 • Manufacturer: ALTEC GmbH • Condition: Fully functional • Cooling Capacity: 50 kW • Operating temperature: -80°C - 70°C • Automation: Fully automated operation Prodpfowt A Eiex Alwsb • Documentation: Original paper documentation included • Heat transfer fluid: Syltherm XLT • Heat transfer fluid flow rate: 10 m³/h • Material: Stainless steel 304L (1.4541) Dimensions: • Width: 1800 mm • Height: 2000 mm • Length: 3500 mm • Weight (empty): 2500 kg • Insulation: PU foam and aluminium sheet cladding Potential Applications Include: • Pharmaceuticals: API synthesis, reactor cooling, vaccine storage, biotech applications. • Food Processing: Flash-freezing, quality preservation. • Aerospace/Automotive: Component testing, material treatment. • Electronics: Manufacturing and testing. • Materials Science: Cryogenic milling and processing. • Research & Development: Any application requiring precise thermal cycling. We ship worldwide. If you are interested or have any questions, please get in touch! Can be inspected in Liestal, Switzerland.

Condition: excellent (used), Year of construction: 2011, functionality: fully functional, Custom conversion upon request! - Tmax 160°C - Vertical lift door - Internal dimensions (L x W x H): 3300 x 2500 x 1150 mm - Controller: JUMO IMAGO - Air management: 6 fans, 6000 m³/h per fan Pedpfoxd A N Tox Alworb - Net weight: 3000 kg - Connected load: 65 kW - Connection: 400V 50Hz-3/N/PE 100A/phase Oven, ovens, industrial oven, preheating oven, drying oven, hardening oven

Condition: excellent (used), Here we offer you a chamber dryer. External dimensions approx.: Width: 1,885 mm Depth: 1,200 mm Height: 2,425 mm Internal dimensions approx.: Width: 1,030 mm Depth: 1,000 mm Height: 2,100 mm Internal volume: 2.2 m³ Rated temperature: 100 °C Operating temperature: 85 °C Heating medium: 3 x 400 V, 50 Hz Heating power: 20 kW Air circulation rate: 4,500 m³/h / 400 Pa Motor power: 1.1 kW Protection class: IP 54 The chamber heating oven must not be used for flammable or explosive materials. The chamber heating oven must not be installed in an explosion-proof area. Continuous chain conveying system External dimensions: Height: 1,880 mm Width: 809 mm Depth: 950 mm Carrier bars: 13 pieces Pitch: 228 mm Carrier bar width: 354 mm Carrier bar depth: 320 mm Usable height: 135 mm Drive motor power: 0.25 kW at 189 Nm Prsdjzdzixspfx Alweb Transport speed: average 5 m/min. Load capacity/carrier bar: max. 10 kg Total load capacity: max. 130 kg Total weight when loaded: max. 730 kg Year of manufacture: 2005 Type: Ke/SO Condition: used Scope of delivery: (See picture) (Changes and errors in the technical data and specifications are reserved!) We will gladly answer any further questions you may have over the phone.

Condition: excellent (used), functionality: fully functional, power: 40 kW (54.38 HP), input current: 56 A, temperature: 450 °C, inner dimension length: 1,000 mm, inner dimension width: 1,500 mm, inner dimension height: 1,000 mm, total length: 1,900 mm, total width: 2,500 mm, total height: 1,600 mm, control type: PLC-controlled, actuation type: electric, fuel type: electric, Equipment: CE marking, documentation/manual, Chamber oven, make: Nabertherm type: N 1500/45 HA electrical heated max. temperature: 450°C internal dimensions (w x d x h): 500 x 1000 x 1000 mm external dimensions (w x d x h): 2500 x 1900 x 1600 mm circulation rate: 3600 m3/h Prjdpfxszd Sd Ts Alweb gas inlet pressure: max. 25 bar gas outlet pressure: 0,2 / 2 bar nitrogen: 0,3 / 12 m3/h input frequency: 50 Hz input current: 56,3 A power: 39,9 kW

Condition: new, Year of construction: 2026, Recirculating chamber furnace, electric, brand new, delivery time 16 weeks - Maximum temperature: 300°C - Internal dimensions (W x D x H): 2100 x 2100 x 2000 mm - Capacity: 8,820 liters - Eurotherm Nanodac controller/recorder with color touch display Prodov Hg Euopfx Alwsb - 2 circulating air fans - Double door with safety door sensors - Over-temperature protection, Eurotherm 3216i - 2 fresh air fans - Automatic dampers - Electrical configuration: 400 V / 50 Hz / 3NPE - Increased heating capacity of approx. 70 kW - Temperature accuracy: +/- 6 K in the empty oven - Documentation and CE declaration of conformity - Electrical schematic with spare parts list Note: The oven floor is not insulated but is covered with stainless steel sheet. This allows unrestricted access with all track widths. Alternatively, an insulated floor can be offered (with entry rails to be defined by the customer). We offer new and used industrial furnaces, which we can also modify and upgrade according to customer requirements. Keywords: oven, ovens, drying oven, industrial furnace, drying cabinet, heating oven, heat cabinet, recirculating oven, chamber oven, heating chamber, chamber recirculating oven, tempering oven, annealing oven.

Condition: excellent (used), Year of construction: 2018, HS Flex 20 station pallet loader. XYZ: 600 x 550 x 330mm, Maximum workpiece diameter 450mm, maximum workpiece height 355mm, Maximum table load 300Kg, A axis -/+ 115 degrees, spindle taper HSK 63, spindle speed 15,000rpm, Podszghngopfx Alwsrb 30 station tool changer, Heidenhain TNC 640 control, with swarf conveyor , and high pressure coolant.

Condition: excellent (used), - Model: Omega 1 - Serial number: 13770392 - Dimensions: 2200x2600x1420 mm - Track width: 800 mm - Track depth: 1630 mm - Baking chamber height: 235 mm - Baking area: 6.6 m2 - Footprint: 3.7 m2 - Number of decks: 5 - Heating power: 65.2 kW - Voltage: 400V - Frequency: 50Hz - Maximum temperature: 300 °C - Year: 2008 - Oven weight: 2070 kg Prjdpfx Aswxmp Aslweb - Loading elevator included - Refurbished equipment: The unit is prepared on order; pick-up and return dates are defined at that time (please request price after refurbishment). The listing was translated automatically. Translation errors are possible.

Condition: excellent (used), Year of construction: 2019, Krauss Maffei KM 250-2000 CX Blue Power with Sepro Industrial Robot SR S5-35HL S4 Trans Year of manufacture: 2019 Injection Unit: Screw diameter: 70 mm Shot weight: 980 g Injection pressure: 1877 bar Metering volume: 1077 cm³ Clamping Unit: Clamping force: 250 t Tie bar spacing: 630x630 mm Platen dimensions: 995x1050 mm Ejector: hydraulic Clamping unit: hydraulic Control: MC6 – touchscreen Additional Equipment: Very good technical condition Operating hours: approx. h in automatic mode Euromap 67 Robot interface Air valve with vacuum measurement x 1 Air valve x 1 Hydraulic core pull x 3 Pneumatic core pull x 1 Hot runner control x 16 Hardened injection unit – bimetallic Energy-efficient machine – equipped with a system of 3 variable displacement hydraulic pumps Parallel movements Proportional valve on injection unit – precise injection Additional oil filtration pump Sepro Industrial Robot SR S5-35HL S4 Trans Year of manufacture: 2015 5-axis robot: 4 axes driven by servomotors (electric): X, Y, Z, B; C axis Touch screen control panel Robot safety package Robot with adapter, conveyor belt, and safety enclosure Purchase of robot and conveyor belt available at an extra charge Dimensions: Weight: 20,100 kg Length/Width/Height: 6.50x2.20x2.30 m All machines offered are started up by our service technicians before sale. A video of the technical tests of the selected machine can be provided or it is possible to participate in live technical tests at our facility in Łódź. Prodpfx Aljzy In Tjwjb Price: On request

Condition: used, El. heated chamber oven, make Heraeus Type: T 340 Temperature: 250°C Pedpfx Aloxlr Nlowjrb Clear dimensions (W x D x H): 300 x 280 x 270 mm

Condition: reconditioned (used), Year of construction: 2017, machine/vehicle number: SN48357, functionality: fully functional, Chamber furnace with exhaust hood, fully refurbished, 12-month warranty, available for immediate delivery - Max. temperature: 1300 °C - Internal dimensions (W x D x H): 400 x 400 x 400 mm - Capacity: 60 liters - Separate main switch - 5-sided heating - Supply and exhaust air with electrically actuated dampers (driven by Belimo actuators) - Supply air fan with frequency converter, controlled via regulator - Stainless steel exhaust hood - Bentrup 507 control system with thyristor control - Note: Controller language is German only; switching to other languages is not possible! - Additional drag element Type S for external recording - Documentation included - Net weight: 250 kg - Power consumption: 18 kW - Current rating: 26 amperes - Supply voltage: 3/N/PE 400VAC Pjdpfotbq Eqox Alwsrb - Connection type: prepared for fixed connection, 32 A plug - Documentation, CE declaration - Electrically tested and supplied with current DGUV test protocol Inspection by appointment. Furnace, furnaces, annealing furnace, industrial furnace, chamber furnace, kiln, curing furnace, tempering furnace, laboratory furnace, hardening furnace, ceramic furnace