1. Cutting of the raw materials
The raw materials used are NBR and silicon, The raw materials are then cut mechanically using a special cutting machine in proportion to the product size and its mould.
2. Mechanical pressing
The raw materials and its mould are pressed using hydraulic-press machine with the pressure, temperature and interval in proportion to the product size to be made. For some types (rubber seals with bigger sizes), higher temperature and longer interval are required.
After being pressed, the rubber seals are released from the mould to allow the rubber seals to get well-formed (O-ring).
The finished products are to be set according to the consumers’ request. In this phase, the products are re-checked to ensure that only products with good quality get to the next process.
After the setting process, the rubber seals are wrapped in and sealed using a sealer machine.
The rubber seals are then packed in plastic bags containing 100 sets of the same type in each bag. After the packaging process, the products are ready to be sent to the consumers based on the PO (Purchase Order) sent to the company.