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Custom Plastic Injection Molding Services
STARWAY MFG GROUP

鉁 Professional Consulting Team 鉁 Fast Prototyping (1-2 weeks) 鉁 Automated & Smart Manufacturing 鉁 Easy Shipping (EXW, FOB, CIF, DDP) 鉁 Global Markets Served

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What is Injection Molding?

Plastic injection molding is a manufacturing process in which molten plastic is injected into a precision mold to produce high-volume, consistent, and complex parts.

At STARWAY MFG GROUP, injection molding is widely used to manufacture custom plastic components for industries such as automotive, medical, and consumer electronics.

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Injection Molding Technologies
TechnologyDescriptionTypical Tolerance (Realistic)Tooling CostBest For
Standard Injection MoldingSingle-shot thermoplastic injection into steel/aluminum mold.卤0.05鈥撀0.1 mm (DIN 16742 Tolerance Group 6/7)Medium鈥揌igh ($5K鈥$50K)General plastic parts, housings, brackets
Insert MoldingPre-placed metal/component encapsulated by injected plastic.卤0.05鈥撀0.1 mm on plastic; insert tolerance depends on insert.Medium鈥揌ighThreaded inserts, electrical contacts, sensors
Overmolding (2-shot)Sequential injection of 2 materials (rigid + TPE).卤0.1 mm at interfaceHigh (dual mold or rotational tooling)Soft-touch grips, sealing surfaces
Micro Injection Molding<1 g shot size, micro-scale features.卤0.01鈥撀0.02 mm achievable; 卤0.005 mm on selected critical features.High (precision micro-tools)Medical, electronics, micro-fluidics
Rapid / Prototype Injection MoldingAluminum or P20 prototype tooling for 100鈥10,000 shots.卤0.1鈥撀0.2 mm typicalLow (1鈥3 weeks lead time)Design validation, bridge production
Gas-Assisted / Structural FoamReduces internal stress, hollow sections.卤0.1鈥撀0.2 mm typicalMediumLarge parts, automotive interiors
Common Plastics for Injection Molding
MaterialProcessTypical Tensile (MPa)Heat ResistanceTypical Use
ABSInjection molding40鈥50~90 掳CHousings, consumer electronics
PPInjection molding30鈥40~100 掳CContainers, automotive interior
PCInjection molding60鈥70~130 掳COptical covers, helmets
Nylon PA6 / PA66Injection molding70鈥90~120 掳CGears, mechanical parts
POM (Delrin)Injection molding60鈥80~100 掳CPrecision moving parts
PLAFDM50鈥70~60 掳CConcept models / display prototypes
Resin (SLA/DLP)SLA / DLP30鈥80 (resin-dependent)variesHigh-detail visual prototypes
Nylon (PA12)SLS / MJF45鈥55~165 掳C HDTFunctional end-use parts
TPUSLS / FDM5鈥35 (flexible)~80 掳CFlexible seals, wearables
Aluminum (AlSi10Mg)SLM / DMLS230鈥450 (as-built / HT)>300 掳CAerospace, lightweight structural
Stainless Steel (316L)SLM / DMLS / BJ500鈥700>300 掳CIndustrial / medical implants
How Does Injection Molding Work?

At Starway, we follow a standardized and optimized injection molding process:

Product Design & Engineering Review.
DFM Analysis & Mold Flow Simulation.
Mold Design & Tooling Manufacturing.
Plastic Injection Molding Production.
Post-processing & Assembly.
Quality Inspection & Delivery.

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Injection molded plastic partsoverview
Why Choose STARWAY MFG GROUP
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Custom Injection Molding Parts in 4 Steps
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Advantages of Starway Injection Molding Services At Starway, we combine advanced Injection Molding technology with full-service manufacturing capabilities to deliver high-quality, cost-effective custom plastic parts.
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