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8-Ton LSR Overmolding Press
Controlled Pneumatic Clamping and Thermal Curing
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Description
Aquasyn’s GMP valves are engineered to meet the demanding requirements of high-purity biopharmaceutical manufacturing. These valves offer maximum design flexibility, allowing for virtually any valve-to-valve or valve-to-fitting configuration, whether in traditional multi-valve setups or precision-machined block body styles. Designed for drainability, cleanability, and minimal dead legs, they are an ideal choice for maintaining compliance with GMP guidelines.
Aquasyn’s approach combines in-house machining, internal and external polishing, and electropolishing to deliver exceptional build quality, fast turnaround, and system-specific valve assemblies. With a wide stock of components and a proven reputation for high-end fabrication and weld quality, Aquasyn is trusted across the industry to deliver custom sterile access valves, fast, reliable, and built to spec.
Our Overmolding Press is designed for precise silicone and polymer molding in medical, bioprocess and industrial manufacturing environments. The press delivers stable force, consistent shot control and smooth cavity filling to ensure accurate, repeatable overmold quality across tubing, connectors, housings and specialty elastomer components.
The compact footprint and cleanroom-compatible construction make it suitable for both development work and production settings. With fast cycling, reliable temperature stability and controlled clamp force, the press supports consistent molding of liquid silicone rubber (LSR) and other high-precision thermoset or thermoplastic materials.
Engineered for ease of use, straightforward setup and long service life, the press provides dependable performance for molding operations requiring accuracy, dimensional stability and cleanroom readiness.
Technical Information
• Material Compatibility:
Suitable for liquid silicone rubber (LSR), medical-grade elastomers, thermosets, thermoplastics and specialty polymer materials.
• Molding Accuracy:
Controlled clamp force and precise shot management to support accurate and repeatable overmolds.
• Temperature Control:
Stable platen temperature performance to maintain material consistency and uniform cavity filling.
• Cycle Performance:
Fast, consistent cycle times designed for cleanroom and production workflows.
• Press Construction:
Compact, durable frame engineered for cleanroom compatibility and long-term operational reliability.
• Applications:
Designed for overmolding silicone tubing, connectors, housings, seals, grommets, fittings and precision polymer components.
• Integration:
Interfaces smoothly with LSR metering and mixing systems, tooling sets and automated molding workflows for scalable production.
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The MB-8 overmolding press is a purpose-built machine engineered to provide controlled, repeatable overmolding of liquid silicone rubber (LSR) components with precision and stability. At the heart of its design is a pneumatic platen actuation system that applies consistent clamp force to the mold assembly, ensuring uniform cavity filling and effective thermal transfer throughout the cure cycle. By relying on pneumatic actuation rather than hydraulics, the MB-8 delivers reliable mechanical motion with fewer moving parts, making it well suited for clean, GMP-oriented manufacturing environments.
Material enters the MB-8’s mold cavity after being prepared by a paired metering and mixing system. Once the mold is loaded, the movable platen closes against the fixed platen under a defined pressure, compressing the tooling and creating a sealed environment for the LSR to cure. Integrated temperature control across both platen surfaces allows the machine to maintain a consistent thermal profile tailored to the specific LSR formulation, which in turn promotes uniform cure behaviour and predictable physical properties in finished parts.
The press frame and platen alignment on the MB-8 are engineered to minimise deflection under load, enhancing dimensional repeatability across production runs. This makes it suitable not only for benchtop or development work, but also for higher throughput and extended duty cycles when greater repeatability is required. Operators can configure the MB-8 for manual mold loading or integrate ergonomic aids depending on workflow and facility layout, while still maintaining a focus on simple, robust operation.
Because the MB-8 is designed to interface seamlessly with upstream LSR metering and mixing systems, the overall process from material delivery to part formation remains efficient and controlled. The combination of accurate material preparation and the press’s pneumatic clamp and heat control provides a balanced platform for overmolding applications where part quality, process repeatability, and thermal control are critical. This makes the MB-8 an effective solution for medical, industrial, and high-purity overmolding workflows where consistent performance and clean manufacturing practices are essential.
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