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Injection Unit — Product Gallery
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Frequently Asked Questions
Q
What is the primary function of the Injection Unit?
The injection unit is the core component responsible for melting plastic material and injecting it under high pressure into the mold cavity. It controls the precise volume, speed, and pressure of each injection cycle to ensure consistent part quality.
Q
What materials can the Injection Unit process?
The injection unit is compatible with a wide range of thermoplastic and thermosetting materials, including ABS, PP, PE, PC, POM, Nylon, and engineering-grade resins. Material selection depends on the screw design and barrel configuration.
Q
How is injection pressure controlled in this unit?
Injection pressure is precisely regulated through a closed-loop hydraulic or servo-electric control system. Operators can set multi-stage injection profiles — including pressure, speed, and position — via the machine's control panel to meet specific product requirements.
Q
What maintenance does the Injection Unit require?
Regular maintenance includes cleaning the screw and barrel to prevent material degradation, inspecting the non-return valve for wear, lubricating moving components, and checking hydraulic seals or servo motor connections. A scheduled preventive maintenance plan is recommended for optimal performance.
Q
Can the Injection Unit be customized for specific applications?
Yes. The injection unit can be configured with different screw L/D ratios, screw geometries (standard, barrier, or mixing screws), and barrel heating zones to suit specific materials or production requirements. Custom nozzle tips and barrel coatings are also available.
Q
What are the key specifications to consider when selecting an Injection Unit?
Key specifications include shot size (injection volume), injection pressure, injection speed, screw diameter, plasticizing capacity (kg/hr), and the L/D ratio of the screw. These parameters should align with the part weight, material viscosity, and required cycle time of your production application.