Rotating oven for cycles
of vulcanization elastomer
This oven is designed for the post-curing treatment of elastomeric materials, particularly O-rings, for which high flatness is required. Various materials can be processed, including NBR, silicones, Viton, etc. The material is loaded into a perforated rotating stainless steel basket, kept in continuous rotation and exposed to two flows of hot air positioned on both sides of the basket.
Air heating is achieved through finned armored heating elements in stainless steel with high heat exchange efficiency, ensuring both performance and uniformity.
Construction Data
Internal material: Steel
External material: Stainless-Steel
Maximum temperature: 300 °C
Seals: fiberglass for high temperatures
Power: 2,4 kW
Weight: 1.700 kg
Characteristics
The oven is characterized by the numerous characteristics that allow to improve the post- curing process.
L.C.P. Valve
Programmed chamber wash: expels the condensed fumes from the chamber.
Control and regulation of incoming air
Heat exchanger
allows considerable energy savings
Siemens PLC thermoregulator
improves control and temperature regulation
Air exchange
Air circulation is one of the most critical aspects of oven operation. Proper airflow management ensures uniform temperature distribution, reducing process times and improving the quality of the final product.
The adopted solution involves introducing clean air at the intake, which is then mixed with the already heated air inside the oven. The resulting airflow is introduced into the working chamber through adjustable dampers, allowing precise control of the air volume.
This system optimizes thermal distribution and ensures stable and uniform process conditions.
Safety systems
Although the system is highly reliable, potential faults cannot be completely excluded. For this reason, the electrical panel is equipped with a second temperature controller, completely independent from the PLC and connected to a dedicated temperature probe.
It is essential that this device is set at a temperature 20 °C higher than the vulcanization temperature in order to ensure an additional level of safety.
Control system – Siemens PLC
The oven is controlled by a Siemens PLC with the capability to store up to 49 programs. Thanks to Ethernet connectivity, the system can be interfaced with a PC and, through dedicated software, the oven can be fully managed remotely: starting post-curing cycles, viewing temperature/time graphs, and recording actual cycles by associating them with batch codes.
This configuration fully complies with quality standards requirements.
Alternatively, a Standard version of the controller is available, which does not allow storage of working programs.
Upon request, it is also possible to evaluate integration of the PLC with the company’s management system, subject to analysis by our IT department.
Technical features
- Siemens PLC series 1211 with expansion for 1 PT100 (RTD) probe channel
- Siemens stabilized power supply 24 V – 2.5 A
- Siemens KP300 monochrome operator panel
- Heating control via Gefran solid-state relays (25 A or higher depending on installed power)
- Oven safety system in Category 4 with dedicated module
- Gefran 600 controller for redundant temperature control, with manual setting of the maximum operating temperature
- Full oven management and control via PLC
- Parameter settings: cycle time (minutes), temperature without ramp, and thresholds
- Maximum temperature alarm
- Provision for Flite_1200 unidirectional recording system
Programming modes
- Possibility to store up to 49 programs
- Each program includes: temperature set point, ramp time, holding time, and tolerance band
- Supply of electrical diagram and related certification
Technical support
– Electronic technician
– IT technician
– 2 mechanical service technicians
– Remote assistance modem for remote support
Optional
Drum rotation lock alarm
Inverter for adjusting the rotating basket
For adjusting the speed of the rotating basket
Technical data of some models
| External Dimension (cm) |
Weight (kg) |
Basket Volume (l) |
Electric power engines (kw) |
Electric power resistance (kw) |
|---|---|---|---|---|
| 234 x 250 x 265 | 1.700 | 800 | 2,4 | 18 |
WE ARE ABLE TO PROVIDE MADE TO MEASURE OVENS STUDIED TO SATISFY YOUR NEEDS
REQUEST A FREE QUOTE
We are at your complete disposal to design a customized solution
Our Ovens
Oven studied for the treatment of post-curing of elastomer materials such as NBR, Silicone, Viton, etc.
Max Temp. 200 / 300°C
Oven studied for the treatment of post- curing of elastomer, such as O-ring, for which flatness is required.
Max temp. 300°C
Oven studied for the specific application of sintering treatments on PTFE polymers.
Max temp. 450°C
Oven designed to hold the moulds before being installed on the press.
Max temp. 200°C
Contact immediately our experts for a free quote
Fill in the form below or call us at the number
+39 035 31.10.40
We have specialized for 20 years in the supply and consultancy of
scientific instrumentation for quality control and R&D laboratories.
Via Fiume Po, 50 – 24040 Stezzano (BG)
+39 035.31.10.40
www.forlabitalia.it