Product novelty 01. September 2026
Two-Component Injection Molding: Reaction Vessel with 384 Wells for Laboratory Use
RKT Rodinger Kunststoff-Technik GmbH has produced a reaction vessel with 384 wells for laboratory use for a biotechnology company. At the core of the project was a two-component injection mold 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 mold 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 overmolded with a transparent plastic. At station 2, the pins are overmolded with a conductive plastic. This step required attention to shrinkage, sealing, temperature management and injection pressure.
Assembly and packaging within the cell
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 molding, assembly and packaging into one continuous sequence eliminates intermediate transport and manual handling steps. Cycle time was reduced by approximately 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 mold 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 overmolded with a transparent plastic. At station 2, the pins are overmolded with a conductive plastic. This step required attention to shrinkage, sealing, temperature management and injection pressure.
Assembly and packaging within the cell
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 molding, assembly and packaging into one continuous sequence eliminates intermediate transport and manual handling steps. Cycle time was reduced by approximately 20 percent.
RKT -
Rodinger Kunststoff-Technik GmbH
Contact
Mr. Stefan Preis