TOP 5100 LSR Dosing System Returns as a Reliable All-Rounder in Its Next Generation
Elmet‘s most recent liquid silicone rubber (LSR) injection molding precision dispensing machine is the TOP 5100. It falls into the high performance range of the manufacturer’s dispensing systems and is compatible with drums that are 20 and 200 liters in capacity. It replaces the TOP 5000, the previous model that has been a global success for nearly a decade. The 20-liter TOP 700 system is the first in the product line, followed by the fully functional flagship TOP 7000 for 20- and 200-liter containers, to which the new TOP 5100 is conceptually closely connected. Elmet has decided to demonstrate its new dispensing system at Silicone Expo Europe, which will be held in Amsterdam on March 19 and 20, 2025.
Further advancements over its predecessor include the TOP 5100’s smaller, more space-efficient design, pump technology with improved sealing for an even longer service life, the volume meters’ higher resolution for even more production precision, and the updated, thus more efficient, software. Employee protection is maximized when the highest safety standards (EN ISO 13849-1) are followed. FDA compliance is an optional design option for the CE and UL-certified TOP 5100. Elmet’s dosing systems and the parts of them that come into touch with the substance must be free of phthalates in order to be used in the food, medical, and associated sectors.
For users who use both TOP 5100 and TOP 7000 units, the conceptual similarity of both systems enables them to reduce spare parts inventory.
The new TOP 5100 is equipped with the M pump unit, which was introduced at Fakuma 2024. This enables a delivery pressure increased to 230 bar, allowing the processing of all commercially available LSR materials in an expanded viscosity range from 0.001 Pas to 3000 Pas. This includes carbon black or mineral-filled and self-adhesive materials that tend to increase in viscosity, as well as abrasive materials, such as thermally conductive materials for e-mobility.
Efficiency thanks to flexibility, precision, and durability.
The TOP 5100 is equipped with the same flow-optimized processing unit and additive system that characterize all other Elmet LSR dosing systems. Flow rates of more than five liters per minute enable short cycle times when filling both larger molded parts and high cavity counts.
The modular design of the processing unit with integrated cooling and the user-friendly clamp connection of the elements facilitate cleaning and maintenance. The volume counters, with their high resolution of 3.9 μl per pulse, provide additional process stabilization when mixing components A and B.
The TOP 5100 is equipped with the option of connecting a regulated additive line as standard; up to five additional ones can be retrofitted. The supply can be optionally provided from 1-, 4-, or 20-liter additive containers. The high resolution of the additive volume counters of less than 0.1 μl/lmp represents a benchmark for maximum precision when adding additives, which is particularly required for very small components.
Up to 99.6% material utilization per container, the high conveying capacity and the low maintenance costs ensure high economic efficiency over the entire service life, which, thanks to the use of high-quality components, is often twenty years or more.
Lukas Linimayr, Product & Business Development Manager at Elmet, commented: “The wide range of available options, coupled with solid conveyor technology must-haves, makes the new TOP 5100 the all-rounder among our dosing systems. It is suitable for standard applications as well as, depending on the configuration, for special, customer-specific requirements. Regardless of this, it stands for maximum process stability and mixing precision for excellent part quality and exceptional cost-effectiveness.”
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