PVO and NIR pre-vulcanization ovens
Pre-vulcanization systems are suitable for curing the outer surface of the profile to stabilize its geometry before coming into contact with the vulcanization oven conveyor belt.
The pre-vulcanization temperature inside the oven reaches about 600°C in the PVO system and 950°C in the NIR system.
PVO and NIR pre-vulcanization ovens
Pre-vulcanization systems are suitable for curing the outer surface of the profile to stabilize its geometry before coming into contact with the vulcanization oven conveyor belt.
The pre-vulcanization temperature inside the oven reaches about 600°C in the PVO system and 950°C in the NIR system.
High-speed hot air ovens
The principle of operation is based on the circulation of forced hot air at high speed within two concentric chambers. The outdoor area, where hot air circulates at low speed, is called the preheating tunnel since the air in this area is preheated. The interior area, where hot air circulates at high speed, is called the vulcanization tunnel where the profile vulcanization takes place. The air temperature is adjustable up to 400°C. The air speed is also adjustable.
High-speed hot air ovens
The principle of operation is based on the circulation of forced hot air at high speed within two concentric chambers. The outdoor area, where hot air circulates at low speed, is called the preheating tunnel since the air in this area is preheated. The interior area, where hot air circulates at high speed, is called the vulcanization tunnel where the profile vulcanization takes place. The air temperature is adjustable up to 400°C. The air speed is also adjustable.
- For sulfur-based compounds
- Length of modules that make up the 4, 6 or 8 meter long oven
- Adjustable air temperatures up to 400°C
- Adjustable air speed
- Automatic tensioning system of the oven conveyor belts to compensate for thermal elongation
- Tunnel accessibility for internal cleaning by opening the side doors
- Great flexibility of use
- Very high efficiency and reduced energy consumption
- Very high reliability and low maintenance
- Simple adjustment for sponge rubber
- For sulfur based compounds
- Power varies depending on the required production speed and profile size
- Instantaneous reaching setpoint temperatures
- Wide adjustment of the desired power value
- Tunnel accessibility and ease of maintenance
- Size of variable vulcanization modules
- High power IR lamps
- Reduced thermal losses
NIR ovens
NIR ovens permit a continuous vulcanization process with the latest generation of near infrared lamps. NIR oven infrared technology allows rapid heating of the extruded profile due to the transfer of energy in the form of radiation of electromagnetic waves without direct contact ensuring very high yields and reduced energy consumption.
NIR ovens
NIR ovens permit a continuous vulcanization process with the latest generation of near infrared lamps. NIR oven infrared technology allows rapid heating of the extruded profile due to the transfer of energy in the form of radiation of electromagnetic waves without direct contact ensuring very high yields and reduced energy consumption.
- Variable power
- Instantaneous achievement of the setpoint power
- Uniform vulcanization and excellent dimensional stability
- No contact markings
- Integrated thermoregulation system
- Total tunnel inspectability for internal cleaning
- For sulfur-based compounds and peroxides
- The oven, with a length ranging from 12 to 36 meters, consists of 2 zones: buoyancy and immersion (half rollers or motorized belts)
- The oven can be fully inspected by pneumatic opening doors.
- The operating temperature of salt is adjustable up to 280°C.
- Pre-cleaning station. Module where the first mechanical cleaning of molten salt from the surface of the rubber profile takes place.
- Washing station. Module with a length ranging from 5 to 15 meters where the molten salt from the profile is cleaned.
- Complete with salt recovery from the wash water
- High productivity
- Suitable for profiles and hose that require vulcanization in the absence of oxygen
- Remarkable flexibility in the production process thanks to the wide range of salt bath temperatures (180 °C – 280 ° C)
- Reduced line length due to the enhanced heat transfer
- Reduced thermal losses.
Combination ovens with molten salt and high-speed hot air
This new patented vulcanization system simultaneously exploits the process qualities of molten salt and high-speed hot air. This system eliminates the use of rollers and / or conveyor belts to keep the profile immersed under the surface of the molten salt. The profile floats on the molten salt and during vulcanization the profile is hit by a flow of hot air thereby vulcanizing freely without the confinement of a conveyor belt and / or rollers that can cause marks and deformations on the profile.
Combination ovens with molten salt and high-speed hot air
This new patented vulcanization system simultaneously exploits the process qualities of molten salt and high-speed hot air. This system eliminates the use of rollers and / or conveyor belts to keep the profile immersed under the surface of the molten salt. The profile floats on the molten salt and during vulcanization the profile is hit by a flow of hot air thereby vulcanizing freely without the confinement of a conveyor belt and / or rollers that can cause marks and deformations on the profile.
- Suitable for complex geometry profiles with sulfur and peroxide-based compounds
- Consists of a bed of molten salt on which the profile floats, the part not in contact with salt is instead hit by a flow of hot air at high temperature and speed
- The tunnel can be divided into several sections ranging in length from 6 to 30 meters
- The oven can be fully inspected by pneumatic opening doors
- The speed and temperature of the hot air are adjustable according to the type of profile to be vulcanized as well as the operating temperature of the salt
- Pre-cleaning station. Module where the first mechanical cleaning of molten salt from the rubber profile takes place
- Washing station. Module ranging in length from 5 to 15 meters where the molten salt is cleaned from the profile
- Complete with salt recovery from wash water
- This innovative process allows the vulcanization of profiles and/or rubber hose without deforming its geometry
- High productivity
- Suitable for profiles/hose that require vulcanization in the absence of oxygen
- Reduced thermal losses.