Radio frequency vulcanisation machine SBR

for SBR foamfor mattressesfor latex

Product overview
A proven application of Stalam's Radio Frequency (RF) technology is drying and RF vulcanisation of foamed natural and synthetic polymers, primarily natural latex, latex/SBR blends and hydrophilic polyurethane. Since the mid-1980s, Stalam has supplied RF dryers and vulcanisers to major manufacturers of latex foam mattresses, pillows and foam sheets.

Process and benefits
RF heating acts volumetrically and is selective towards water, enabling rapid drying of thick, shaped and dense items without surface overheating or yellowing. Moisture in the core absorbs RF energy and migrates quickly to the surface, avoiding wet spots and enabling precise control of evaporation rate and final residual moisture. Applied to vulcanisation, RF fields—used alone or combined with steam—accelerate cycles and reduce required floor space, with documented energy and cost savings up to 50%.

Benefits (high-level list)

• Significantly shorter vulcanisation and drying times compared with conventional methods
• Documented energy and cost savings up to 50%
• Improved final product quality (no surface overheating, fewer wet spots)
• Reduced equipment footprint and faster line throughput
• Greater process versatility for varying production demands
• Lower carbon footprint

Applications
RF drying and vulcanisation for natural latex and SBR foam products, including mattresses, mattress cores/plates, pillows, cushions, bucket seats and other shaped or bulky foam items. Suitable for cast blocks, anatomic pillows and other dense or low-permeability foam articles.

Technical characteristics / specifications

• Brand: Stalam
• Technology: Radio Frequency (RF) vulcanisation and RF drying
• Materials handled: natural latex, SBR (styrene-butadiene rubber) blends, hydrophilic polyurethane and similar foamed polymers
• Typical products: mattresses, pillows, foam sheets, foam plates, cushions
• Key advantages: selective heating of water, rapid core drying, no surface overheating or yellowing
• Performance note: documented energy and cost savings up to 50% versus conventional methods
• Track record: RF dryers and vulcanisers supplied since the mid-1980s to major producers