Automated 2K Injection Molding Cell for 384-Pin Reaction Vessel

Insert moulding RKT cuts reaction vessel production cycle time by 20 percent

2026-10-02 Source: RKT 1 min Reading Time

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A fully automated production cell combines two-component injection moulding, precise placement of 384 metal pins, assembly and packaging. Developed by RKT for a laboratory reaction vessel, the integrated process reduced cycle time by around 20 percent.

The reaction vessel contains 384 wells, into which a corresponding number of metal pins are inserted. (Source: RKT Rodinger Kunststoff-Technik) — The reaction vessel contains 384 wells, into which a corresponding number of metal pins are inserted.
(Source: RKT Rodinger Kunststoff-Technik)

RKT Produces Assembly with Inserted Metal Pins in Fully Automated Cell

Two-Component Injection Molding: Reaction Vessel with 384 Wells for Laboratory Use

RKT Rodinger Kunststoff-Technik has produced a reaction vessel with 384 wells for laboratory use for a biotechnology company. At the core of project was a two-component injection mould integrated into a fully automated production cell. The fully automated process reduced cycle time by around 20 percent.

The assembly required processing two plastic components in a single mold. In addition, a metal pin had to be inserted into each of the 384 wells and then overmolded. The function of the reaction vessel called for precise positioning of every individual pin.

Implementation in two stations

For economical production, RKT developed a 2K mould that operates within a fully automated production cell. Insertion of the metal pins is automated as well.

At station 1, the metal pins are inserted, aligned and overmoulded with a transparent plastic. At station 2, the pins are overmoulded with a conductive plastic. This step required attention to shrinkage, sealing, temperature management and injection pressure.

The subsequent process steps also take place automatically within the production cell: assembly of the unit, ultrasonic welding and packaging with Tyvek film. Integrating injection moulding, assembly and packaging into one continuous sequence eliminates intermediate transport and manual handling steps. Cycle time was reduced by approximately 20 percent.

(ID:50975957)

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