PKE hardening chamber furnace up to 1280 °C

Stands up well both in labs and in industry

These furnaces are smaller versions of the PK furnaces. When designing them, we retained the durability of the internal lining, even in these smaller furnaces. Although heat accumulation in the lining is somewhat inferior to that in the PK, the PKE furnaces are, on the other hand, quicker to heat up, which you will especially appreciate if they are only used occasionally. We recommend these primarily for relatively small charges that are handled manually.

I’m interested in this furnace

+420 547 230 016 Call us from 8:00 a.m. to 2:00 p.m.

sales@lac.cz We’ll reply within 24 hours.

Furnaces in stock Furnaces and dryers ready for pick-up

Benefits

Even temperature distribution
Appropriate for relatively small charges
Industrial robustness
Easy to install, easy to control
Custom adjustments
Delivery times as low as 5 weeks
24-month warranty

Charge treatment technology

(PS = partially suitable)

Incineration, combustion, annealing loss (PS)
Enamel firing (PS)
Sintering (PS)
Thermal processing of metallic materials under a partially protective atmosphere
Melting metal materials (PS)
Glass fusing
Material testing
Preheating prior to forging
Preheating moulds
Hardening
Annealing
Cementing
Preheating castings

PKE hardening chamber furnace

Furnace type	Tmax°C	Recommended operating temperature range in °C	Volume in l	External dimensions (w × h × d) mm	Internal dimensions (w × h × d) mm	Input in kW	Weight in kg	Protection*	Voltage V	Max. load capacity of bottom in kg
PKE 12/12	1280	700 - 1200	12,2	700×650×850	250×200×250	3,0	95	16/1	230	20
PKE 18/12	1280	700 - 1200	17,5	700×650×900	250×200×350	3,5	101	16/1	230	30
PKE 18/12R	1280	700 - 1200	17,5	700×650×900	250×200×350	5,5	101	16/3	400	30
PKE 25/12	1280	700 - 1200	25	700×1300**×1100	250×200×500	7,0	132	16/3	400	50
PKE 45/12	1280	700 - 1200	44	800×1350**×1100	350×250×500	13,0	160	25/3	400	100
PKE 65/12	1280	700 - 1200	65	800×1350**×1300	350×250×750	16,0	195	32/3	400	130
PKE 90/12	1280	700 - 1200	87	800×1350**×1550	350×250×1000	18,0	225	32/3	400	150

*Protection can vary depending on accessories added (at additional cost).
** Height of furnace with stand.
Subject to technical changes.

Standard equipment

Ht40P controller (10 programmes with 15 steps each)
heating elements on the sides in ceramic panels
heating element at the bottom of the furnace in ceramic panels covered with a ceramic refractory plate
three-layer insulation made of ceramic-fibre plates
ventilation chimney for venting the furnace’s operational space
“S” type thermocouple
The PKE 12/12 through the PKE 18/12 are designed for 230 V and equipped with a 3 m connecting flexible cable
The PKE 18/12R through the PKE 90/12 are designed for 400 V and equipped with a 3 m cable with a CEE terminal
door manually opened downwards
contactor
door limit switch for safe opening of the furnace
tabletop (PKE 12 and PKE 18) or separately standing variant (height of loading edge 900 mm)

Optional accessories available at additional cost

protective atmosphere supply (cannot be produced in the semi-gastight option)
optimisation of the temperature field for compliance with DIN 17052-1 ΔT20 °C in the internal usable space (in an empty furnace at Tmax, a grommet for thermocouple is required)
measurement protocol for temperature uniformity (a grommet is needed for the TUS test)
tree-channel digital temperature recorder
measuring loop calibration
EIA-485 or LAN interfaces
HtMonit EV set (contains software + interface)
metal plate for the bottom (only up to temperatures of 1,000 °C)
non-controlled overpressure forced cooling (only with the HT 205 controller,only for furnaces PKE 25 and PKE 45, can not be combined with hardening table)
controlled overpressure forced cooling (only with the HT 205 controller, only for furnaces PKE 25 and PKE 45, can not be combined with hardening table)
injector with exhaust fan and draw interrupter for drawing flue gases away (we do not recommend combining this with a protective atmosphere intake)
grommet for TUS test measuring thermocouples

Custom additional components

custom controller
custom stand
working tub for hardening in a protective atmosphere (up to 950 °C refractory steel, up to 1,100 °C Inconel material type) The unit can be delivered with a protective atmosphere supply in the tub, however, the furnace itself is delivered without a protective atmosphere supply and without the semi-gastight option.

Associated equipment for a hardening operation centre / hardening workplace

It is possible to additionally order the following items for creating a hardening operation centre / hardening workplace:

large hardening table SKV for the PKE 25/12 through PKE 90/12, in combination with hardening tubs and fan
small hardening table SKM for the PKE 12/12 and PKE 18/12 (R) with a combination of hardening tubs, fan, and PP 20
hardening container

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