Sheet Metal Fabrication Design Engineering Project management Assembly Rapid Prototyping Packaging Shipping & Delivery
CNC Machining Design Engineering Project management Assembly Rapid Prototyping Packaging Shipping & Delivery
Plastic Injection Molding Design Engineering Project management Assembly Rapid Prototyping Packaging Shipping & Delivery
✓ Professional Consulting Team ✓ Fast Prototyping (1-2 weeks) ✓ Automated & Smart Manufacturing ✓ Easy Shipping (EXW, FOB, CIF, DDP) ✓ Global Markets Served
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.
| Technology | Description | Typical Tolerance (Realistic) | Tooling Cost | Best For |
|---|---|---|---|---|
| Standard Injection Molding | Single-shot thermoplastic injection into steel/aluminum mold. | ±0.05–±0.1 mm (DIN 16742 Tolerance Group 6/7) | Medium–High ($5K–$50K) | General plastic parts, housings, brackets |
| Insert Molding | Pre-placed metal/component encapsulated by injected plastic. | ±0.05–±0.1 mm on plastic; insert tolerance depends on insert. | Medium–High | Threaded inserts, electrical contacts, sensors |
| Overmolding (2-shot) | Sequential injection of 2 materials (rigid + TPE). | ±0.1 mm at interface | High (dual mold or rotational tooling) | Soft-touch grips, sealing surfaces |
| Micro Injection Molding | <1 g shot size, micro-scale features. | ±0.01–±0.02 mm achievable; ±0.005 mm on selected critical features. | High (precision micro-tools) | Medical, electronics, micro-fluidics |
| Rapid / Prototype Injection Molding | Aluminum or P20 prototype tooling for 100–10,000 shots. | ±0.1–±0.2 mm typical | Low (1–3 weeks lead time) | Design validation, bridge production |
| Gas-Assisted / Structural Foam | Reduces internal stress, hollow sections. | ±0.1–±0.2 mm typical | Medium | Large parts, automotive interiors |
| Material | Process | Typical Tensile (MPa) | Heat Resistance | Typical Use |
|---|---|---|---|---|
| ABS | Injection molding | 40–50 | ~90 °C | Housings, consumer electronics |
| PP | Injection molding | 30–40 | ~100 °C | Containers, automotive interior |
| PC | Injection molding | 60–70 | ~130 °C | Optical covers, helmets |
| Nylon PA6 / PA66 | Injection molding | 70–90 | ~120 °C | Gears, mechanical parts |
| POM (Delrin) | Injection molding | 60–80 | ~100 °C | Precision moving parts |
| PLA | FDM | 50–70 | ~60 °C | Concept models / display prototypes |
| Resin (SLA/DLP) | SLA / DLP | 30–80 (resin-dependent) | varies | High-detail visual prototypes |
| Nylon (PA12) | SLS / MJF | 45–55 | ~165 °C HDT | Functional end-use parts |
| TPU | SLS / FDM | 5–35 (flexible) | ~80 °C | Flexible seals, wearables |
| Aluminum (AlSi10Mg) | SLM / DMLS | 230–450 (as-built / HT) | >300 °C | Aerospace, lightweight structural |
| Stainless Steel (316L) | SLM / DMLS / BJ | 500–700 | >300 °C | Industrial / medical implants |
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.
Engineering Consultation That Reduces Manufacturing Risk At Starway, engineering involvement starts before production begins. Our engineers work closely with customers to review drawings, tolerances, materials, and manufacturing feasibility, identifying potential risks early and proposing optimized solutions. By integrating engineering and sales teams, we ensure that technical decisions are accurately translated into cost, lead time, and production plans — avoiding surprises during execution.
New project success depends on speed, accuracy, and adaptability. Starway operates a dedicated project development team combining engineering, prototyping, and quality control. This allows us to deliver prototypes within 1–2 weeks, validate manufacturability quickly, and resolve technical challenges through real production trials — not assumptions.
On-time delivery and consistent quality are not outcomes — they are engineered results. All orders are managed through our MES system, enabling real time production tracking, quality traceability, and cross department coordination. This system-driven approach allows us to proactively manage risks, maintain schedule integrity, and keep customers informed with accurate production data.
At Starway, Easy Shipping is another key advantage. Our goal is to make customers' shipping easy, safe, and fully trackable. Our professional logistics team helps our customers handle all types of shipments — both air and sea — including EXW, FOB, CIF, DDP, etc. Our shipping system enables us to track and monitor all shipments in transit, ensuring they arrive safely and on time. Our customers are updated regularly with their shipping status.
It is used for mass production of plastic parts with high precision and repeatability.
Costs vary from a few thousand to tens of thousands USD depending on mold complexity and volume.
MOQ depends on the project, but injection molding is best for medium to high-volume production.
Production typically takes 15–30 days including mold tooling and sampling.
ABS, Nylon, PC, and POM are commonly used depending on application.
Typically ±0.05 mm, and up to ±0.01 mm for precision parts.
Insert molding integrates metal or other components into plastic parts during molding.
Overmolding combines multiple materials into one finished part.
Yes, using rapid tooling or soft molds.
Automotive, medical, electronics, and industrial manufacturing.
Through strict QC processes including FAI, in-process inspection, and final inspection.
Yes, STARWAY MFG GROUP offers full mold design and tooling services.
A fast and cost-effective solution for low-volume production.
Injection molding is for high-volume plastic parts, CNC machining is for precision parts in lower volumes.
Yes, Starway provides assembly, packaging, and labeling services.
Yes, we provide worldwide shipping and export support.
Upload your CAD files and get a quotation within 24 hours from Starway.
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