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Since 2002, Dongguan Lemo Precision Metal Products Co.,Ltd focus on manufacturing precision OEM metal parts by CNC machining, CNC turning, CNC milling, sheet metal fabrication, metal stamping and die casting service. Lemo team is a professional provider for plastic injection molding service , we are ISO-9001-2015 certificated company with competitive cost and high quality parts.We use variety of thermoplastic materials, computer controlled machinery and necessary auxiliary equipment to meet all of your parts criteria. We continually improve plastic part quality and costs by optimizing processes while reducing costs. We are focused on quality and customer service coupled with decades of experience.

Quickly move from plastic molded prototypes to high-quality custom production parts. Get bulk pricing & DFM in 1 day. 30+ thermoplastic, thermoset materials.

Free quote with DFM feedback

No MOQ

0.05mm mold tolerance

T1 sample as fast as 2 weeks

Plastic Injection Moulding Parts

Our Custom Injection Molding Services

we shape plastic parts based on part size, intricacy, and volume requirements. On-demand prototypes and production runs are made possible with machines ranging from 30t to 1800t, ensuring every design’s accuracy. Benefit from free design consulation on each injection molding order. Expect quick turnarounds with lead times as short as 15 days.

Insert Molding

Insert molding encases a pre-set insert with plastic, merging metal and plastic, enhancing strength, simplifying assembly, and ensuring precision integration.

Plastic Injection Molding

Plastic injection molding is a technique where molten thermplastic is forced into molds, solidifying into parts. Enabling efficient, and large-scale production with consistent quality.

Overmolding

Overmolding combines different plastic materials by molding one over another, enhancing functionality, aesthetics, and grip, while reducing assembly time and costs.

Custom Injection Molding Parts Made by Lemo

Why Choose Lemo for Online Injection Molding Service

Rapid Prototyping

Benefit from our rapid injection molding, delivering 1K-100K units quickly at a low cost. Using aluminum or steel molds, we ensure fast turnaround, directly addressing your production challenges and reducing time-to-market.

Low Volume Production

Low volume injection molding elevates your output, delivering 100K-1M units using resilient steel molds. This ensures high quality and consistency, effectively addressing your need for sizable yet precise production runs while maintaining exceptional standards.

No MOQ

No minimum order requirement helps move plastic molded parts from design to production in a fast turnaround and supports your on-demand injection molding needs with reduced cost.

High Quality and Consistency

Owing ISO certified factories, conducting in-process inspections and dimensional verification after production, guarantee the custom molded parts consistency regardless of the complex shape with high precision.

Fast Turnaround

With certified domestic factories and a strong supply chain system, we accelerate the product development cycle and bridge plastic parts production as fast as 2 weeks, or less.

Injection Molding Expertise

Collaborate with our experts, boasting 10+ years in injection molding, for mold design guidance, material and finish choices, ensuring a smooth transition from prototyping to production.

Our Custom Injection Molding service process

Custom Injection Molding service process

What Is Injection Molding

Injection molding is a manufacturing process used to produce plastic parts in large quantities. Molten plastic material is injected into a mold cavity under high pressure, where it cools and solidifies to take the shape of the mold. Once the part is solidified, the mold opens, and the finished part is ejected. This process is widely used for producing a variety of plastic products ranging from small components to large objects, such as automotive parts, electronic enclosures, and household items.

Advantages Of Injection Molding：

High Efficiency: Injection molding enables high-volume production with consistent quality and minimal waste, making it cost-effective for large-scale manufacturing.
Complex Geometries: It can produce intricate and complex shapes with precise details, allowing for design flexibility and the creation of innovative products.
Material Variety: A wide range of thermoplastic and thermosetting materials can be used in injection molding, offering versatility in material selection to meet specific product requirements.
Rapid Production: Injection molding processes are typically fast, with short cycle times, enabling quick turnaround times for large quantities of parts.
Minimal Post-Processing: Parts produced through injection molding often require minimal finishing or assembly, reducing additional manufacturing steps and costs.
High Accuracy and Consistency: Injection molding provides tight tolerances and consistent part dimensions, ensuring uniformity and quality across production batches.
Design Freedom: With the ability to incorporate features like undercuts, ribs, and inserts, injection molding allows for greater design freedom compared to other manufacturing processes.
Environmental Considerations: Injection molding can be environmentally friendly, as it enables the use of recyclable materials and minimizes material waste through efficient production processes.

Applications Of Injection Molding:

Automotive: Interior components, exterior body parts, dashboard panels, and engine components.
Consumer Goods: Bottles, containers, toys, household appliances, and electronic enclosures.
Medical Devices: Syringes, medical tubing, surgical instruments, and device housings.
Electronics: Connectors, housings, casings, and components for electronic devices.
Packaging: Caps, closures, packaging trays, and containers.
Aerospace: Interior components, ductwork, and structural parts.
Industrial Equipment: Machine components, gears, housings, and brackets.
Construction: Pipes, fittings, seals, and architectural components.
Furniture: Chair parts, table legs, and structural components.
Sporting Goods: Helmet shells, protective gear, and equipment components.

FAQ

Q: What are the typical tolerances for injection molded parts?

A: Typical tolerances for injection molded parts range from +/- 0.005 inches to +/- 0.030 inches, depending on factors such as material type, part geometry, mold design, and manufacturing process.

Q: What are the 4 stages of injection moulding?

A: The four stages of injection molding are:
1, Clamping: The mold is closed and clamped shut under high pressure to securely hold it together during the injection process.
2, Injection: Molten plastic material is injected into the mold cavity under high pressure.
3, Cooling: The plastic material inside the mold cools and solidifies, taking the shape of the mold cavity.
4, Ejection: The mold opens, and the finished part is ejected from the mold cavity, ready for further processing or assembly.

Q: What Material Should I Use For My Project?

A: That depends on the end application of the product. We will be able to guide you through the material selection process should you require assistance.

Q: How quick is injection molding?

A: The speed of injection molding depends on several factors, including the size and complexity of the part, the material being used, and the specific requirements of the production process. Cycle times for injection molding can range from a few seconds to several minutes. In high-volume production settings, cycle times are typically optimized to be as short as possible to maximize efficiency and output. However, the precise speed of injection molding can vary significantly depending on the specific parameters of the production setup and the desired quality of the finished parts.

Q: How Many Times Can an Injection Mold Be Used?

A: The number of times an injection mold can be used varies depending on factors such as the material being molded, the design and construction of the mold, and the quality of maintenance and care. Generally, injection molds can be used for thousands to hundreds of thousands of cycles before requiring refurbishment or replacement. High-quality molds and proper maintenance practices can extend their lifespan, while abrasive materials or poor handling may decrease it.

Q: What are the Limitations of Injection Molding?

A: 1, Initial cost: Injection molding equipment and tooling can be expensive to set up, making it less economical for small production runs.
2, Material limitations: Certain materials may not be suitable for injection molding due to their properties or processing requirements.
3, Cycle time: While injection molding is generally fast, cycle times can vary depending on part size, complexity, and material, potentially limiting production speed.
4, Part size: Injection molding is typically best suited for small to medium-sized parts, and larger parts may require specialized equipment or processes.
5,Tooling lead time: Fabricating injection molds can take weeks to months, which may delay production timelines for new products or iterations.

Q: Which situation you can use Injection molding?

A: 1) The material is plastic, any kind of engineering plastic.
2) Demands quantity is continuous for many years and big
3) The shape is complex and special, the cost by CNC machining is very high.
4) Special color request. ( because we can do any RAL code color)

Q: What lead time for open one injection mould?

A: 1)Precision steel long life time mold : 20-25 working days.
2) Rapid aluminum mould : 10-15 working days.

Q: Can injection products be surface treated? What are the surface treatments?

A: Surface treatment: spray paint, silk screen, electroplating, etc.

Q: Can I get cheaper mold ?

A: Yes, if your demand QTY is not big, it means the mold lift time can be some short, we can open aluminum mold to save cost for you. Please kindly contact us, our engineer team will provide you best solution.

We're well-known as one of the leading injection molding manufacturers and suppliers in China. If you're going to buy high quality injection molding, welcome to get quotation from our factory. Also, customized service is available.

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