High-Efficiency FHG Servo Motor Injection Molding Machine 100ton-1680ton - China Suppliers & Factory Solutions

An injection unit is the core component of an injection molding machine responsible for melting raw plastic material and injecting it under high pressure into a mold cavity. It controls the plasticizing, metering, and injection processes to ensure precise and consistent part production.

The injection unit is compatible with a wide range of thermoplastic and engineering-grade materials, including PP, PE, ABS, PC, PA (Nylon), POM, and more. Specialized configurations are also available for processing high-temperature or fiber-reinforced materials.

Key performance indicators include injection pressure (bar/psi), injection speed (mm/s), shot weight (grams), screw diameter (mm), and plasticizing capacity (g/s). These parameters determine the machine's suitability for specific products and production requirements.

Regular maintenance includes cleaning and inspecting the screw and barrel for wear, checking and replacing the check valve ring as needed, monitoring heating bands and temperature sensors, lubricating moving parts, and purging residual material after production to prevent degradation and blockages.

Yes. Injection units can be customized with different screw geometries, barrel coatings, nozzle designs, and heating configurations to suit specific materials or applications such as multi-component molding, gas-assist molding, or micro-injection processes.

Common warning signs include inconsistent shot weights, visible material leakage around the nozzle or barrel, abnormal noise during operation, fluctuating melt temperatures, increased cycle times, and visible wear or scoring on the screw. Prompt inspection and servicing can prevent costly downtime and product defects.