Injection Molding
Injection molding involves heating plastic to high temperatures sometimes in excess of 600 degrees and forcing the liquid plastic under extreme pressure and clamping force into a steel mold. The mold is then rapidly chilled and the part is ejected all within seconds. Injection molding is the ultimate method for high volume part production where complex geometry and high levels of 3D detail are required.
Our capabilities
- 75 – 500 ton molding machines
- Process a wide range of materials
- 2 grams – 64 ounce shot weight
- Part design and CAD services
- 3D printing
- U.S. and offshore mold manufacturing
- 24 hr / 6 day production
Materials
Depending on your needs thousands of materials can be injection molded. These range from polypropylene used in toys to ABS used in consumer electronics to nylon used in engineering grade applications to silicone used in high heat requirements to glass reinforced materials for extra strength. The possibilities are endless.
Advantages to injection molding
- parts with complex geometry are easily achieved
- cycle times are fast making parts cost effective
- multiple parts made in one mold meets production demands multiple cavity or family mold
- close tolerances are easily met sometimes under .001 of an inch
Special characteristics of injection molded parts
- reinforced with glass or graphite – exhibits metal characteristics
- resistant to extreme hot or cold -40 to 500F
- resistant to caustic chemicals and UV exposure
- low CLTE (co-efficient of linear thermal expansion) good for outdoor applications)
- exhibits rubber like characteristics when using thermoplastic elastomers
- anti-stat inhibitors
- chrome plating for automotive applications
Fabrication and machining for our customers requiring low production or prototyping. We offer a complete machining facility. Our services extend to SLA (3D printing) and CAD model file capabilities. SRG can assist with design and engineering to insure high quality and cost effective parts.
Plastic Machining
Capabilities
Precision cutting – minimum 3 ” +/- .020
Machining – Prototypes or short run – no die or mold cost
Fabrication – Drilling routing punching notching mitering
Printing – One color random repeating image done inline
Taping – Inline or offline application double sided tape
Special packaging – Consumer products
3-D printing for prototypes
CAD services – Full 2-D or 3-D drawing files
Inline Laser Printing
