Plastic Injection Molding Workshops


Free Lifetime Mold Maintenance & Warranty
Free Prototyping & Rapid Sample Delivery.
Expert In-House Design & DFM Engineering.
100% Genuine Branded Raw Materials.
100+ Advanced Injection Machines.
1,000+ Precision Mold Sets.
5,000 m² Modern Workshops.
Provide Free Storage & Warehousing.
If you can imagine it, we can make it happen!
The stable operation of industrial machinery often lies in those unassuming plastic parts — our custom injection-molded gears, bearing retainers, casters, seals, pump bodies, guide rail sliders, junction boxes, and other core components. Using high-strength, wear-resistant, self-lubricating engineering plastics (such as POM, PA66, and PEEK) to replace metal, we reduce weight and lower noise. From transmission to sealing to mobility, we mold not just parts, but the confidence in long-term, trouble-free equipment operation.
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You design the product, we bring it to life with precision plastic parts. In the consumer electronics sector, our custom injection molding capabilities cover products such as mobile phones, earphones, smart wearables, routers, and smart home devices — including enclosures, buttons, card trays, brackets, connector housings, internal structural parts, and more. Based on your drawings or samples, we can handle the entire process from mold design and injection molding to surface finishing (e.g., painting, IML, vacuum metallization). Our standard materials (PC, ABS, PC/ABS, PA, etc.) meet requirements for high dimensional accuracy, excellent aesthetics, and flame retardancy, ensuring stable quality and reliable lead times.
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We have long been providing custom injection molded parts for the automotive industry, covering conventional interior trim parts (such as instrument panel bezels, door handles, air conditioning vents), exterior trim parts (such as bumper grilles, emblem bases, rearview mirror housings), and functional parts (such as clips, brackets, wire harness holders). Based on your drawings or samples, we can handle the entire process from mold design and injection molding to surface finishing (e.g., painting, plating, grain texture). We are highly experienced with common materials (ABS, PP, PC/ABS, etc.) and manufacturing processes, delivering stable quality and reliable lead times.
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Your device designs, we bring to life with the most reliable plastic parts. In the medical field, our custom injection molding capabilities cover three major categories: consumables (e.g., syringe barrels, infusion connectors), diagnostics (e.g., assay kits, test tubes), and equipment components (e.g., monitor housings, surgical instrument handles). Based on your drawings or samples, we can handle the entire process from mold design and injection molding to cleanroom assembly. We use standard medical-grade materials (such as PP, PC, ABS, PEI, etc.) that meet biocompatibility requirements, ensuring high precision, contamination-free production, full traceability, and consistent, reliable quality.
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Big details in small objects — we bring quality to your everyday life. In the daily necessities and stationery sector, our custom injection molding capabilities cover packaging items (bottle caps, spray pump heads, food containers, electronic trays), household items (storage boxes, colanders, fresh-keeping box lids, clothes hangers and hooks), as well as stationery items (pen barrels and caps, stapler housings, rulers, correction tape casings, pencil cases), and more. Based on your drawings or samples, we can handle the entire process from mold design and injection molding to surface finishing (e.g., screen printing, hot stamping, texture engraving). Our standard materials (PP, PS, ABS, AS, PET, etc.) meet food contact safety standards (FDA, LFGB), as well as drop resistance and scratch resistance. We support high-volume, stable production with cost control and reliable lead times. From bottle caps to pen barrels — molding the small things that make daily life easier.
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Plastic Injection Molding Workshops

Quality System Certifications

Domestic & International Clients

Injection Mold Processing Workshop

Experience in Brand Customization

Industry Recognitions

Production Team Members

2 in China
We provide a comprehensive range of services, spanning from injection-molded product design and precision mold manufacturing to injection molding production and 24-hour online after-sales support.



If you can imagine it, we can make it happen!








If you can imagine it, we can make it happen!
Key takeaways PPWR regulates packaging, not plastic parts. If your part is a product rather than packaging, Regulation (EU) 2025/40 does not apply to it. Read Section 1 before anything else. A part is in scope in one of three ways: it is packaging, it is a component of a packaging unit, or it is p...




Two continents. One design team. Twelve time zones apart, Mike __ an industrial designer based in the United States __ and our engineering team in Xiamen spent [1 months] turning a rough idea into a product you can trust on a bumpy trail. This is the story of how that product was designed: not a mar...




When your product needs the grip of a soft-touch handle bonded to a rigid structural core — overmolding is the answer. This guide breaks down the two dominant approaches, material pairing rules, and when each method delivers the best ROI for your project. What Is Overmolding? Ove...




Take a look at your power tool's handle, your electric toothbrush, or the grip on your smartphone case. Notice how the hard plastic body transitions into a soft, tactile surface exactly where your hand makes contact? That's overmolding — and it's one of the most powerful yet fre...




When you're bringing a plastic product from concept to reality, one of the first decisions you'll face is choosing between injection molding and 3D printing. The wrong choice can cost you months of development time and tens of thousands of dollars. Yet the right choice is rarely obvio...




Executive Summary: From DFM optimization to mass production, Yistar Plastic delivered a turnkey injection molding solution for a push-button LED lamp targeting the North American and European markets — helping the client cut their time-to-market by 4 weeks. 1. Project Background...




Process: Two-Shot Molding (Double Injection) Material: PC + Silicone (LSR) Cavities: 1+1 or 2+2 Cycle Time: 45s --------------占位--------------- Project Overview: A global premium water sports brand sought to develop professional swim goggles that combine sleek aesthetics with...




Yistar (Xiamen Yistar Precision Manufacturing Co., Ltd.) is a professional OEM/ODM manufacturer specialized in precision injection molding parts. With 17 years of profound expertise in precision manufacturing and full-process customization capabilities, we provide one-stop injection molding solution...




This case shares the operation of a high-conversion independent store for metal-texture wireless earbuds, targeting European and American markets. 1. Positioning & Differentiation Against homogeneous plastic earbuds, the product takes premium silver metal design as its core highlig...




Automatic infrared thermometers are widely applied across various industries including the power sector. Portable and easy to carry, they can be taken to every corner of industrial sites to perform on-site calibration for temperature probes that require inspection, maintenance and verification. This...




20+ years of processing experience with high-performance plastics from world-leading chemical brands. 100% genuine materials with RoHS, REACH, and UL94 compliance.
Your products are safe in our hands. We strictly process premium resins adhering to international environmental, flammability, and food-gradestandards





If you can imagine it, we can make it happen!
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2026.SepKey takeaways Piece price is not landed cost. Nine line items decide the real number; most quotes show four. The 2026 tariff stack is not the 2025 tariff stack. The US Supreme Court struck down the IEEPA tariffs on 20 February 2026. Section 122's 10% global tariff expired 24 July 2026 and was repl...
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2026.SepYour injection molding partner will determine your product's quality, your launch timeline, and — in the worst case — your entire brand reputation. Yet most buyers choose a supplier the same way they choose a restaurant: a quick search, a promising website, and a prayer. A mold costs any...
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2026.AugYou sent the same 3D file to five suppliers. The quotes came back at 3, 200,4,800, 7, 500,11,000, and $18,000. Same part. Same drawing. A 5x spread. Your fi rst instinct is that someone is overcharging you. Usually, that is not what is happening. What is actually happening is that five factories quietly...
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2026.AugSustainability is no longer a buzzword in injection molding — it's a competitive advantage. Global buyers are increasingly factoring environmental performance into supplier selection. Here's how leading manufacturers are integrating recycled materials, reducing energy consumption, and meeting...
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2026.JulMost companies stay with underperforming injection molding suppliers far too long. Not because they're satisfied — but because switching feels risky. Will the new supplier actually be better? Will the transition disrupt production? Will quality problems just follow you to the next vend...
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2026.JulWhen you trust a supplier with your injection molding project, you're not just buying parts. You're buying capacity, consistency, and the peace of mind that your supply chain won't fall apart at the worst possible moment. At Yistar Plastic, we believe the best way to earn that trust is to show you...
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2026.JunIn the world of plastic injection molding, "Two-Shot Molding" and "Overmolding" are often confused. While both produce multi-material parts, their production workflows, equipment requirements, and costs vary significantly. 1. What is the Difference? Two-Shot Molding (Double Injection) This process...
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2026.JunRecently, Mr. Jack, a key client from the United States, paid a special visit to our production base for an on-site factory inspection. The visit focused on full-process audits and business negotiations regarding the customized black plastic storage tray shown in the picture. Our sales, production a...
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