Technology

Resin Transfer Moulding is a resin injection process. Rotec is using vinylester and epoxy resins  with fiberglass reinforcement in various forms such as:veil, continuous mat and various combinations of mat and fabrics. By RTM technology Rotec manufactures high quality products with high strength-to-weight ratios and precise constant dimensions.

Compression Moulding is a high-volume production technology, allowing processing Sheet Moulding Compound in large numbers of composite products. SMC is a pre-impregnated composite sheet made by resin, chopped fiberglass, fillers and additives . Compression Moulding requires expensive but very durable steel moulds and is used by Rotec to produce Backing Rings (Loose Flanges) in diameters DN 25 – DN 300 mm.

Also Vacuum Infusion is a closed mold process. Atmospheric pressure is used to push the resin into the mold cavity.  The process is highly controllable and results in very consistent product quality. Another advantage (like for all closed mold production technologies) is a minimal styrene emission.

Rotec developed a PLC controlled tape winding machine for manufacturing elbows and bends DN 200-600.

Rotec is using Contact Moulding technology for the production of Tubulated Flanges (DN 25 to DN 600 mm). These flanges, either in the form of Stub Flanges or Full Face Flanges, all incorporate a 2.5 mm inner corrosion resistant layer, which, allied to the resin systems utilized offer high chemical and temperat...