World-Class Injection Molding Services
Small and large scale injection molding Request an injection molding quote today.
Injection Molding
Star Rapid is a world-class provider of advanced injection molding services. We offer a complete manufacturing solution that covers every aspect of positive material identification, tool making, part fabrication, finishing, and final inspection. Our international team of manufacturing experts is committed to providing you with the highest level of professional support for injection molding services of any size or complexity. We offer three tiers of injection molding services to ensure that you get precisely the solution that’s best for your intended volume, production time and budget.
Types of 3D printing
Various specialized techniques are available for 3D printing, each catering to different needs:
Fused Deposition Modeling (FDM)
This method constructs prototypes by layering thermoplastic filaments from the bottom up, using heat. FDM printers offer a wide range of material options, catering to both cost-effective and high-performance requirements.
Stereolithography (SLA)
Utilizing a UV laser to cure layers within a photo-reactive epoxy resin, SLA offers exceptional accuracy, making it ideal for engineers requiring intricate details and small features.
Selective Laser Sintering (SLS)
In SLS, a high-power laser fuses tiny polymer powder particles, enabling the creation of robust and complex parts. While not discussed in detail here, it's worth noting the diverse range of materials available for all types of additive manufacturing processes.
Fused Filament Fabrication (FFF)
FFF, an extrusion process, builds objects by depositing melted material layer-by-layer. Common thermoplastics used include ABS and Nylon, making FFF suitable for a wide array of applications.
Vacuum Casting
Offering a quick and cost-effective alternative to 3D printing, vacuum casting produces accurate representations of master models. A silicone rubber mold filled with polyurethane resin is placed in a vacuum, eliminating air bubbles and yielding precise results.
CNC Machining
As a subtractive manufacturing process, CNC involves fixturing a block of metal or plastic material inside a mill. Programmed with G-code, the CNC machine rapidly mills parts from the raw material block. It serves for both rapid prototyping and low-volume production of end-use components.
These specialized techniques provide a diverse toolbox for meeting various manufacturing needs, offering solutions ranging from rapid prototyping to production-grade parts.
3D Printing Mateirals
Our material selection includes plastic and metal options such as ABS, PA (nylon), aluminum and stainless steel for a variety of industrial 3D custom printing projects. If you have unique material requirements, feel free to let us know and we will be happy to provide you with the materials you need.
ABS and Resins
ABS is a top choice for 3D printing due to its strength, durability, and higher temperature resistance. Ideal for functional prototypes and complex designs, ABS ensures reliable performance and impressive finish.
Technology: SLA
Color: White, Beige, Black, Red, Semi-transparent
Types:
– ABS Photosensitive Resin
– High Temperature Resistant 70°C Photosensitive Resin
– Black Toughness 70°C Heat-Resistant Photosensitive Resin
– Semi-Transparent – Photosensitive Resin
White Tough Resin
PA (Nylon)
Nylon offers exceptional strength, flexibility, and abrasion resistance, making it ideal for small quantities of prototypes and durable end-use products. Its durability and adaptability ensure high-quality, long-lasting printing.
Technology: MJF, SLS
Color: Original color, gray-black,
black painted
Types: HP Nylon
Aluminum
Aluminum metal 3D printing, offers a unique blend of lightness and strength with exceptional thermal conductivity and resistance to corrosion, making it a top choice for high-precision, durable prints.
Technology: SLM
Color: Silvery Gray
Type: ALSI10MG Aluminum Alloy
Stainless Steel
Stainless steel offers unmatched strength, resistance to corrosion and heat, and durability. Ideal for industrial 3D applications, it ensures high-quality, and precise parts with excellent mechanical properties.
Technology: SLM
Color: Gray-black
Type: 316L Stainless Steel
3D Printing Surface Roughness
Check the specifics of surface roughness achievable with Xinjuexin’s custom 3D printing services. Our table below outlines the detailed roughness metrics for each printing technique, guiding your choice for optimal part texture and precision.
| Printing Type Material | Post-Printing Roughness | Post-Processing Technology | Roughness After Processing |
| SLA Photopolymer Resin | Ra6.3 | Polishing, plating | Ra3.2 |
| MJF Nylon | Ra6.3 | Polishing, plating | Ra3.2 |
| SLS White Nylon, Black Nylon, Glass-filled Nylon | Ra6.3-Ra12.5 | Polishing, plating | Ra6.3 |
| SLM Aluminum Alloy | Ra6.3-Ra12.5 | Polishing, plating | Ra6.3 |
| SL Stainless Steel | Ra6.3-Ra12.5 | Polishing, plating | Ra6.3 |
| Note: After post-processing, some materials can achieve a surface roughness between Ra1.6 and Ra3.2. The specific outcome depends on the customer’s requirements and the particular circumstances. | |||
General Tolerances for 3D Printing
For linear dimensions that are printed without specified tolerances, our local 3D printing shops adhere to the GB 1804-2000 standard, applying and inspecting with a coarse accuracy level (Class C).
| Basic Size | |
|---|---|
| Linear Dimensions | ±0.2 to ±4 mm |
| Fillet Radius and Chamfer Height Dimensions | ± 0.4 to ± 4 mm |
| Angular Dimensions | ±1°30' to ±10' |
For shape and position dimensions not noted tolerance, we follow the GB 1804-2000 L level for implementation and testing. Refer to the following table:
| Basic Length | |
|---|---|
| Straightness and Flatness | 0.1 to 1.6 mm |
| Verticality Tolerance | 0.5 to 2 mm |
| The Degree of Symmetry | 0.6 to 2 mm |
| Circular Runout Tolerance | 0.5 mm |
How RapidDirect Custom 3D Printing Works?
Send Design
Upload your 3D model file first. Our quoting system supports a wide range of file formats such as [.STP], [.STEP] or [.STL] to ensure compatibility and ease of use.
Quick Quote & DFM Analysis
Send it and receive an instant quote. Our engineers will perform a manufacturability analysis of your design to identify potential problems and optimize printing efficiency.
Material Selection
Choose from a variety of materials and finishes. Our team of experts can help you choose the option that best suits your project's specific needs while balancing cost, function and aesthetics.
Precision Printing
We use high resolution 3D printers to bring your designs to life. We always guarantee industry-leading standards to ensure that products are made with high precision and detail.
Quality Assurance (QA)
Every part undergoes rigorous inspection. Our quality control process includes dimensional accuracy checks and surface finish checks to ensure your parts meet exact specifications.
Secure Packaging and Delivery
Once the quality is approved, we will carefully package and ship your prints. We will provide fast and reliable delivery options.