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Forced Convection Chamber Furnace (top loading) KNC/V up to 850°C

Brand: LAC, s.r.o.

Max temp: 850 °C | Volume: 270–2000 l | Voltage: 400 V

Delivery options
Code: 620513
from €23 820 from €28 822 incl. VAT
Forced Convection Chamber Furnace (top loading) KNC/V up to 850°C
Brand: LAC, s.r.o.
L: 270 l
Upon request | 620513
€23 820
€28 822 incl. VAT
L: 540 l
Upon request | 620514
€26 940
€32 597 incl. VAT
L: 1000 l
Upon request | 620515
€32 140
€38 889 incl. VAT
L: 1500 l
Upon request | 620516
€37 340
€45 181 incl. VAT
L: 2000 l
Upon request | 620517
€44 620
€53 990 incl. VAT

Forced convection chamber furnace with top loading up to 850 °C

Need to heat treat large or heavy charges evenly at higher temperatures while maintaining precise control of the thermal cycle?

The KNC/V forced convection chamber furnace up to 850 °C is designed for industrial processes where temperature uniformity, forced air circulation and top loading are essential.

When is this furnace the right choice?
  • You need heat treatment up to 850 °C
  • You require forced air circulation
  • You process larger, heavier or bulky charges
  • You need top loading from above
  • You work with tempering, ageing, annealing, curing, preheating or mould drying
  • You need precise temperature uniformity for demanding industrial processes
The KNC/V furnace is suitable for heat treatment under normal atmosphere where the final result depends on uniform temperature distribution and a controlled thermal cycle. The forced air circulation system, together with a powerful central fan unit, helps distribute heat evenly throughout the furnace chamber and supports stable and repeatable process conditions. The 850 °C version uses a refractory circulation insert and bottom sheet, making it suitable for higher-temperature processes than the 650 °C version.

Key features:

  • Maximum temperature 850 °C
  • Recommended operating range 300–800 °C
  • Vertical chamber design with top loading
  • Forced air circulation
  • Hydraulically controlled door opening towards the back
  • Resistance heating with meanders
  • Refractory circulation insert and bottom sheet for higher-temperature operation
  • Available chamber volumes from 270 to 2000 L
  • Maximum bottom load capacity up to 1500 kg
  • Ht205 controller with 30 programmes of 15 steps each
  • Type K thermocouple
  • Terminal switching relays for safe furnace opening
  • Limit unit

Typical applications

The KNC/V furnace is suitable for industrial heat treatment under normal atmosphere, especially where top loading, forced air circulation and temperature uniformity are important for repeatable results.

  • Normalisation annealing
  • Solution annealing of non-ferrous metals
  • Annealing of non-ferrous metals
  • Soft annealing
  • Recrystallisation annealing
  • Annealing for relieving stress
  • Artificial ageing
  • Low-temperature tempering
  • High-temperature tempering
  • Curing
  • Preheating

Typical industries

  • Heat treatment shops
  • Metal processing
  • Mechanical engineering
  • Automotive suppliers
  • Foundries and casting operations
  • Toolmaking and mould production
  • Testing and process development

Main benefits

  • Even temperature distribution throughout the chamber
  • Better temperature uniformity thanks to forced air circulation
  • Convenient top loading for large and heavy charges
  • Reliable repeatability for industrial heat treatment
Suitable for customers who need a vertical chamber furnace with top loading and forced air circulation for precise and repeatable heat treatment up to 850 °C.

For lower-temperature processes, consider the KNC/V 650 °C forced convection chamber furnace. If front loading is preferred, consider the KNC/H 850 °C forced convection chamber furnace. For large and heavy batches loaded on a bogie hearth, consider the VKNC 850 °C forced convection bogie hearth furnace.

Optional accessories available at additional cost

  • Ht200 controller (30 programmes with 25 steps each, USB interface)
  • Automatic suction and ventilation flap
  • Automatic ventilation flap
  • Manually controlled suction and ventilation flap
  • Manually controlled ventilation flap
  • Optimisation of the temperature field to meet the DIN 17052-1 ΔT 10 °C standard in the internal usable space (in an empty furnace at Tmax) including a report from measuring
  • Measuring loop calibration (thermocouple + controller)
  • Grommet for the TUS test measuring thermocouple
  • EIA-485 or LAN interface
  • HtMonit set (contains software + interface)
  • Three-channel digital temperature recorder
  • Ammeters for checking the status of the heating elements
  • Foot-operated switch for door opening

Custom additional components

  • Controlled forced overpressure cooling
  • Uncontrolled forced overpressure cooling
  • Electrically controlled door opening upwards
  • Pneumatically controlled door opening upwards
  • Gas heating for furnace
  • Loading frame with shelves or other equipment
  • Exhaust fan for drawing off flue gases

Note: When combining accessories available at additional cost, consult with our technical office.

Technical parameters

The table below shows the standard technical parameters for the KNC/V chamber furnace with forced circulation up to 850 °C.

← Scroll horizontally to view all parameters →
Parameter KNC/V 270/85 KNC/V 540/85 KNC/V 1000/85 KNC/V 1500/85 KNC/V 2000/85
Maximum temperature (°C) 850 850 850 850 850
Recommended operating range (°C) 300–800 300–800 300–800 300–800 300–800
Volume (l) 270 540 1000 1500 2000
Internal dimensions (w × h × d, mm) 700×650×600 900×750×800 1000×1000×1000 1500×1000×1000 2000×1000×1000
External dimensions (w × h × d, mm) 1600×1250×2500 1800×1350×2900 2350×1600×2900 2850×1600×2900 3200×1500×2350
Input (kW) 24 36 48 64 90
Weight (kg) 800 1100 1300 1400 1700
Voltage (V) 400 400 400 400 400
Protection (A) 80/3 100/3 100/3 125/3 160/3
Max. load capacity of bottom (kg) 400 600 800 1000 1500
Not sure which KNC/V model is suitable for your process?
Contact us and our specialists will help you select the right chamber size, bottom load capacity, forced circulation performance and optional equipment for your application.

Additional parameters

Category: Industrial furnaces
Warranty: 2 years
FOR RELIABLE HEAT TREATMENT AND INDUSTRIAL PROCESSES

You need a furnace solution that delivers consistent results, long service life and reliable performance in your process. LAC furnaces are designed for laboratory and industrial applications, from material testing and heat treatment to demanding production processes. With a focus on temperature uniformity, durability and process stability, they help you achieve repeatable results and reduce operational risks.

Typical applications: material testing • heat treatment • ceramics processing • glass • laboratory and industrial production
Manufacturing company : LAC, s.r.o.
Address : Topolová 933 667 01 Židlochovice Czech Republic
E-mail : sales@lac.cz