Plastic parts manufacturing

At our core, we specialize in custom plastic parts manufacturing and assembly—delivering tailored components that align with your unique design specifications, rather than offering off-the-shelf finished products. With years of expertise in material science and injection molding, we collaborate closely with clients across aerospace, automotive, medical, consumer electronics, and industrial sectors to turn concepts into high-performance plastic parts. Our focus on customization ensures every component, from intricate housings to durable structural parts, is engineered to fit your application’s exact requirements.

Custom Plastic Parts: Structure Design & Material Matching

Customization starts with understanding your part’s intended function, operating environment, and performance goals—and this begins with structural design optimization. Whether your project requires thin-walled enclosures for electronics, reinforced brackets for mechanical systems, threaded fasteners, or complex geometric components with tight tolerances, we refine every structural detail to enhance durability, reduce weight, and improve manufacturability. For example, load-bearing parts (such as industrial machine brackets) are designed with ribbing or gussets to distribute stress, while precision-fit components (like medical device casings) feature modified draft angles to ensure smooth demolding without compromising dimensional accuracy.

Critical to structural performance is material matching—we select plastics based on how well they complement your part’s structure and application. For parts needing rigidity and heat resistance (e.g., automotive under-hood components), we prioritize materials like glass-fiber reinforced nylon (PA66+GF) that boost tensile strength while withstanding high temperatures. For flexible, impact-resistant parts (such as consumer electronics connectors), thermoplastics like TPE (Thermoplastic Elastomer) or TPU (Thermoplastic Polyurethane) are ideal, as they maintain elasticity without cracking. For food-contact or medical applications (e.g., diagnostic device components), we use FDA-approved materials like PP (Polypropylene) or PEEK (Polyether Ether Ketone), ensuring biocompatibility and chemical resistance. Every structural design is paired with a material that maximizes performance and minimizes cost.

Premium Plastic Materials & Their Applications

We source high-quality thermoplastics and engineering resins, selecting each material based on its mechanical properties, chemical resistance, temperature tolerance, and cost-effectiveness. Below are key materials we use and their typical applications:

- Polypropylene (PP): Lightweight, chemical-resistant, and FDA-approved, PP is ideal for food packaging components, medical device housings, and automotive interior parts. Its low moisture absorption makes it suitable for parts used in humid environments.

- Acrylonitrile Butadiene Styrene (ABS): Known for its impact resistance and rigidity, ABS is widely used in consumer electronics (e.g., laptop casings, remote controls), automotive trim, and toy components. It can be easily colored and finished to match aesthetic requirements.

- Nylon (PA6/PA66): A durable engineering resin with excellent tensile strength and wear resistance. Unreinforced nylon is used for gears, fasteners, and bushings, while glass-fiber reinforced nylon (PA+GF) is preferred for high-load parts like automotive brackets and industrial machine components.

- Polycarbonate (PC): Transparent, heat-resistant, and shatterproof, PC is the top choice for optical components (e.g., lenses, light covers), medical device windows, and electrical enclosures. It maintains integrity in temperatures up to 130°C, making it suitable for high-heat applications.

- Thermoplastic Elastomer (TPE/TPU): Combining the elasticity of rubber with the processability of plastic, TPE/TPU is used for seals, gaskets, grip handles, and flexible connectors. It offers excellent resistance to oils and UV radiation, making it suitable for outdoor and industrial use.

- PEEK (Polyether Ether Ketone): A high-performance resin for extreme environments—resistant to high temperatures (up to 260°C), chemicals, and radiation. PEEK is used in aerospace components, medical implants, and oil/gas industry parts where reliability under harsh conditions is critical.

Injection Molding: Our Core Process for Precision & Efficiency

We rely on injection molding as our primary manufacturing process, leveraging its unique advantages to produce consistent, high-quality custom plastic parts at scale. Injection molding involves melting plastic resin, injecting it into a custom-designed mold under high pressure, and cooling it to form the desired shape—and our expertise in mold design and process control sets us apart.

Key process features include: precision mold engineering (we design molds with CAD/CAM technology to ensure dimensional accuracy within ±0.005mm for critical parts); material flexibility (the process works with all thermoplastics and engineering resins, from PP to PEEK); and automated production (our CNC-controlled machines reduce human error and ensure consistent part quality across batches). We also offer secondary processes like ultrasonic welding, machining, and surface finishing (painting, plating, texturing) to meet post-molding requirements.

The advantages of our injection molding service are tailored to your needs: cost-effectiveness at scale (low unit costs for high-volume production, as molds are reusable and cycle times are fast—typically 10–60 seconds per part); complex design capability (we can produce parts with undercuts, threads, and intricate geometries that other processes can’t match); consistency (tight process control ensures every part meets the same specifications, reducing waste and rework); and speed to market (our streamlined mold design and production workflow gets your custom parts from prototype to production in weeks, not months).

Beyond Manufacturing: Custom Assembly Services

In addition to plastic parts manufacturing, we offer custom assembly services to simplify your supply chain. Whether you need us to assemble multiple plastic components with metal fasteners, integrate electronic parts into plastic housings, or perform final quality checks, our assembly team ensures every unit meets your standards. This turnkey approach eliminates the need for you to coordinate with multiple vendors, reducing lead times and simplifying logistics.

From initial design consultation and material selection to injection molding and assembly, we are your trusted partner for custom plastic parts. Our focus on quality, precision, and customization ensures that every component we produce is engineered to fit your application perfectly. Contact us today to discuss your project and learn how we can bring your custom plastic part ideas to life.

We are plastic mold maker and can provide custom mold service, we can make injection molds, blow molds, rotational molds and die-casting molds.

For custom injection molds, we can provide professional custom injection molding services. Usually Plastic injection mold manufacturing Molding are manufactured using injection molding technology. The mold materials for injection molds can be chosen from P20, 718, S136, H13 and so on. The mold material reflects the mold life and product material requirements.

For parts that require blow molding production, we can also provide professional custom blow molding services.

Plastic injection mold manufacturing Injection Mould making

1.We communicate product design according to samples/drawings and your requirements.

2.After the product design is confirmed, we carry out the mold design, we provide all kinds of injection molds, blow molds, silicone molds, die-casting molds services.

3.Material procurement, steel cutting and mold basic tools.

4.Mold assembly

5.Mold inspection, tracking and controlling mold processing.

6. We will inform you the date of mold trial and send you the sample inspection report and injection parameters together with the sample.

7.Your instruction and confirmation of shipment.

8.Prepare the mold before packing.

Plastic injection mold manufacturing molding Specification

1. Professional manufacturer, design, production injection mould and stamping mould quality control

2. rich export experience plastic injection mould and stamping mould

3. Reasonable price of design mould

4. Cavities: single or as per your requirements cavity

5. Treatment: S45C Pretreat>25Hrc,And Nitriding

6. Mould Steel: Cavity ,Core and slide: P20 ,2738,2136 available Moldbase :LKM available

7. Standard:DEM ,HUSKY,available

8. Hot runner: according to your demand

9. Life time: >300 Thousand Times

10. Package: Plywood case, anti-rust paint

Mold design：

Information you need to provide us

1. If you have drawings, 2D drawings, 3D drawings (preferably in STEP format).

2. If there are no drawings, you need to provide specific length, width, height and weight information. (It’s best to send us samples)

3. Should the mold be sent to your country, or leave the mold in our factory and we will help you produce the product.

4. Mold material requirements, cavity number requirements (you can tell us about the size of your injection molding machine)

5. Product material requirements and product quantity. (You can tell us about the use of the product and we can give you suggestions)

Transaction process:

Mold testing：

Once the mold is complete, I do a mold test. It usually takes about 3-5 days to complete. We need to assemble the mold, adjust the pressure data of the machine, and try production. We need to check whether there are problems during the normal production of the mold and make modifications.

Product packaging

Packaging according to your needs

1.By air ,it takes 3-7 days for delivery .The goods can be shipped by DHL ,Fedex ,UPS .

2.By sea ,the delivery time is based on your port .

To South East Asian Countries takes about 5-12 days

To Middle east countries takes about 18-25 days

To European countries takes about 20-28 days

To American countries takes about 28-35 days

To Australia takes about 10-15 days

To African countries takes about 30-35 days.

Factory

Video-1: (Factory Video)

Video-2: (Injection Molding)

Video-3: (Blow molding)

Video-4: (Blow molding)

Video-5: (Roll molding)

Customer satisfaction is our most important goal. We focus on communication and cooperation with our customers, always pay attention to their needs and provide quick response and quality customer service. Our injection production mold factory is committed to establishing long-term relationships and ensuring that our customers receive the best after-sales service during the purchase and use of our products, and we will definitely do our best to solve any problems for our customers.

FAQ

1. Who are we?

We are based in Zhejiang, China, start from 2014,sell to North America(30.00%),Southern Europe(10.00%),Northern.

Europe(10.00%),Central America(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%). There are total about 51-100 people in our office.

2. How can we guarantee quality?

Always a pre-production sample before mass production;

Always final Inspection before shipment.

3. What can you buy from us?

Mould,Plastic Product, Metal Product,Dental Product,CNC machining.

4. Why should you buy from us not from other suppliers?

Ningbo P&M Plastic Metal Product Co., Ltd. We main do all kinds of 3d design, 3d printing and plastic metal molds tooling and products. We have our own engineer and factory. One-stop supply:3d design - 3d printing - mold making - plastic injection.

5. What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;

Accepted Payment Currency:USD,EUR;

Accepted Payment Type: T/T,L/C,PayPal,Western Union,Escrow;

Language Spoken:English,Chinese,Spanish,French,Russian.

6. What are the characteristics of your service?

1. Your inquiry related to our products or prices will be replied within 24hours.

2. Welltrained and experienced staffs to answer all your enquiries in fluent English.

3. Offering the support to solve the problem in the application or selling period.

4. Competitive prices based on same quality.

5. Guarantee samples quality same as mass production quality.