Traditional Molten Salt Ovens

Specialized vulcanization systems for industrial silicone profiles using molten salt immersion

Purpose & Application

• Designed specifically for industrial silicone profiles
  • Not suitable for other rubber types due to the unique thermal and chemical properties of molten salt and silicone.
• The extruded profile is immersed directly into the molten salt bath for rapid and uniform curing.
• Profile handling is done through motorized rollers or belts, ensuring continuous movement and precise control.

Key Features & Technical Specifications

• Oven Length:
  • Available in standard lengths ranging from 6 to 15 meters to match various line speeds and production volumes.
• Adjustable Belt/Roller Speed:
  • The speed is customizable based on profile geometry and curing requirements.
  • Allows fine-tuning of residence time in the molten salt for optimal vulcanization.
• Operating Temperature:
  • Adjustable up to 280 °C, which is ideal for curing silicone-based compounds.
  • Provides precise thermal control to avoid over-curing or under-curing.
• Pneumatic Door Opening:
  • Ensures safe and efficient access for maintenance or process adjustments.
  • Minimizes heat loss and operator exposure during opening.
• Integrated Washing Station:
  • Used immediately after the molten salt bath to remove residual salt from the cured profile.
  • Helps maintain product quality and prevent corrosion or surface defects.
• Salt Recovery System:
  • Employs evaporation technology to remove salt from the washing water.
  • Promotes resource recovery, cost efficiency, and environmental compliance.

Advantages

• Extremely Fast Heat Transfer:
  • Molten salt provides direct and rapid thermal contact, curing silicone profiles much faster than air or infrared ovens.
• Consistent and Uniform Vulcanization:
  • Full immersion ensures even exposure across the profile surface and cross-section.
• Clean Profile Finish:
  • Post-process washing and salt recovery ensure no residue is left on the final product.
• Adjustable Process Parameters:
  • Both temperature and speed can be tailored for specific product and material requirements.
• Efficient Salt Management:
  • Closed-loop system reduces waste and supports sustainable production practices.

Applications

• Automotive & Transports – High-temp silicone seals, gaskets, hoses
• Building & Construction – Silicone profiles for glazing, joints, and façades
• Industrial Products – Technical silicone components, insulation
• Aerospace – Precision silicone parts used in high-performance systems
• Cables & Electrical Components – Heat-resistant silicone insulation and jacketing