Compression moulding - Import export

SPIROL manufactures several different types of Moulded-In Compression Limiters that are designed to be installed into the plastic assembly during the moulding process. When moulding Compression Limiters into the plastic assembly, the moulding time is increased as the operator or a pick-and-place robot must load each Compression Limiter over the core pin(s) prior to closing the mould cavity. Precise placement of the Moulded-In Compression Limiter over the core pin is required; otherwise mould damage can occur. SPIROL Standard Moulded-In Compression Limiters include: The Series CL500 Moulded-In, Series CL460 Moulded-In - Oval, Series CL600 & CL601 Aluminum and Series CL800 & CL801 Brass.

SPIROL manufactures several different styles of Post Mould Installed Compression Limiters for installation into the plastic component after the molding process is complete. Installing Compression Limiters after the plastic has cooled typically results in the lowest total installed cost since there is no added cycle time associated with placing the Compression Limiters over core pins during the moulding process. Post mould installed Compression Limiters also eliminate any concern with damaging the mould due to improperly positioned components. SPIROL Standard Post Mould Compression Limiters include: The Series CL220 Split Seam, Series CL200 Split Seam - Slim Profile, Series CL350 Split Seam - Heavy Wall, Series CL400 Split Seam - Oval, Series CL6000, CL6100 & CL620 Aluminium and Series CL8000 & CL8100 Brass.

SPIROL offers robust, vertical installation machines specifically designed to post-mould install Compression Limiters into a variety of plastic assemblies. The machines can install a single Compression Limiter or multiple Compression Limiters simultaneously into various polymers, thermoplastics and thermosets. SPIROL’s Compression Limiter Installation Machines are versatile solutions designed to be retooled to accommodate changing part configurations. All designs incorporate standardized machine components to reduce factory lead time, improve component reliability, and lower component costs. SPIROL also specializes in application-specific fixtures to ensure that all assembly components are held accurately in place through the installation process.

In the injection moulding process TPE pellets are fed into the machine through a hopper and then into a heated barrel. The heat from the barrel turns the material into a liquid resin which is then injected into a closed mould under high pressure. After allowing the molten polymer to cool, the finished part can be removed from the mould. Injection moulding is a high-volume, high tooling cost process, the advanced properties of our TPE compounds deliver short cycle times allowing parts to be produced at a rapid rate. The information below is intended as a general overview, settings may vary depending on the specific grade selected. Please CONTACT US for detailed processing information Settings Equipment Conventional injection moulding machine Compression set At least 2:1. Special screws with short sections and higher compression ratios (3:1 to 4:1) may be good at low screw speeds Shrinkage Between 1.0% and 2.5% depending on the grade, type of application and location of the gate. Moul