Hot Wall Retort Chamber Furnace (without circulation) PKR up to 950 °C
Max temp: 950 °C | Volume: 30–230 l | Voltage: 400 V
Hot wall retort chamber furnace without circulation for protective atmosphere heat treatment up to 950 °C
Need to heat treat metal parts in a defined protective atmosphere while reducing unwanted oxidation and protective gas consumption?
The PKR hot wall retort chamber furnace without circulation up to 950 °C is designed for heat treatment in a gastight retort where a controlled protective atmosphere is required but forced circulation inside the retort is not necessary.
For applications requiring higher temperatures or regular operation close to the maximum temperature, the furnace can also be equipped with an optional Inconel retort, allowing operation up to 1100 °C.
- You need heat treatment in a defined protective atmosphere
- You require a gastight hot wall retort furnace without circulation
- You want to reduce oxidation and unwanted surface changes
- You process metallic parts where forced atmosphere circulation is not required
- You work with nitrogen, argon, forming gas or a similar protective gas
- You want to keep protective gas consumption relatively low
Key features:
- Maximum temperature up to 950 °C
- Recommended operating range 700–900 °C
- Gastight hot wall retort for controlled atmosphere processing
- Operation without forced atmosphere circulation
- Three-sided heating from the floor and both side walls
- Automatically controlled protective atmosphere inlet for one gas type
- Vacuum pump connection inlet
- Overpressure valve and pressure monitoring of the retort
- Water-cooled sealing collar at the front of the retort
- Relatively low protective gas consumption
- Available working volumes from 30 to 230 L
- Robust industrial construction with side-opening door
Typical applications
The PKR furnace is suitable for heat treatment processes where metallic materials must be protected or processed in a defined protective atmosphere.
- Protective atmosphere heat treatment of metallic materials
- Tempering of tool steels in a protective atmosphere
- High-temperature tempering
- Normalisation annealing
- Sintering
- Pyrolysis
- Curing
Also suitable for selected applications
- Material testing
- Annealing and internal stress relieving
Typical industries
- Heat treatment shops
- Tool and mould manufacturing
- Metal processing
- Automotive industry and suppliers
- Aerospace industry and suppliers
- Additive manufacturing
- Research and development
- Industrial laboratories
Main benefits
- Defined protective atmosphere inside the gastight retort
- Reduced unwanted oxidation and surface changes
- Relatively low protective gas consumption
- Three-sided heating for temperature distribution inside the furnace
- Controlled gas supply for one selected protective gas
- Robust construction for industrial operation
- Quiet operation thanks to contactless solid-state relays
- Flexible configuration with optional vacuum extraction and controlled cooling
Consider the PKRC hot wall retort chamber furnace with circulation up to 950 °C.
Need short-term operation above 950 °C?
The PKR furnace can be equipped with an optional Inconel retort, allowing short-term operation up to 1100 °C.
Optional accessories available at additional cost
- Spare retort made of refractory stainless steel
- Retort made of Inconel for short-term operation up to 1100 °C
- Vacuum pump for atmosphere evacuation with controlled forced cooling
- Charge thermocouple with Ht40 temperature display unit
- Controlled forced cooling according to the programmed cooling curve
- Three-channel digital temperature recorder
- Temperature field optimisation according to DIN 17052-1 ΔT20 °C
- Calibration of the measurement loop
- EIA-485 interface
- LAN interface
- HtMonit EV software package with interface
- Additional gas systems according to customer requirements
- Custom stand height
Technical parameters
The table below shows the standard technical parameters for the PKR hot wall retort chamber furnace without circulation up to 950 °C.
| Parameter | PKR 55/95 | PKR 130/95 | PKR 180/95 | PKR 350/95 |
|---|---|---|---|---|
| Maximum temperature (°C) | 950* | 950* | 950* | 950* |
| Recommended operating range (°C) | 700–900*** | 700–900*** | 700–900*** | 700–900*** |
| Volume (L) | 30 | 75 | 110 | 230 |
| Internal retort dimensions (Ø × W × H, mm) | 267 × 490 × 198 | 372 × 715 × 303 | 412 × 715 × 338 | 544 × 975 × 447 |
| External dimensions (W × H × D, mm) | 1400 × 1830 × 1290 | 1640 × 1930 × 1520 | 1700 × 1960 × 1520 | 1915 × 2080 × 1855 |
| Input (kW) | 13 | 21 | 29 | 50 |
| Weight (kg) | 570 | 950 | 1050 | 1350 |
| Protection (A) | 25 / 3 | 40 / 3 | 50 / 3 | 80 / 3 |
| Voltage (V) | 400 | 400 | 400 | 400 |
| Maximum bottom load (kg) | 150 | 200 | 200 | 300 |
*** Recommended operating range for long-term industrial operation.
Contact us and our specialists will help you select the right retort size, chamber volume, protective atmosphere configuration and optional equipment for your heat treatment application.
View the complete product page for detailed information about construction, accessories, applications and technical specifications.
Additional parameters
| Category: | Industrial furnaces |
|---|---|
| Warranty: | 2 years |
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.
| Manufacturing company : | LAC, s.r.o. |
|---|---|
| Address : | Topolová 933 667 01 Židlochovice Czech Republic |
| E-mail : | sales@lac.cz |