Molded plastic case production

We specialize in molded plastic case production, delivering custom precision plastic enclosures and optional assembly solutions to clients across electronics, automotive, medical devices, industrial machinery, and consumer goods sectors. Unlike finished product traders, we focus exclusively on the design and injection molding of high-performance plastic cases—components that protect internal parts, ensure structural integrity, and align with your brand aesthetics. Our core strength lies in translating your unique requirements into tailored plastic case solutions: from compact electronic device casings to rugged industrial equipment enclosures—ensuring every molded case meets your exact dimensional, protective, and environmental standards.

Custom Molded Plastic Cases: Structural Design Features & Material Matching

Our molded plastic case production service is anchored in precision structural customization, as case performance relies on protective capability, mounting compatibility, and user-friendliness. Our engineering team collaborates closely with you to design cases tailored to your internal component layout, protection level, and usage scenario: For electronic device casings (e.g., smartphones, sensors), we design thin-wall structures (0.5–1.5mm) with precise snap-fit or screw-fastened closures, integrated ports/cutouts for connectors, and shock-absorbing ribs; For industrial equipment enclosures (e.g., control panels, sensor housings), we create rugged, rib-reinforced structures with IP-rated sealing (IP54–IP68) to resist dust, water, and impact; For automotive plastic cases (e.g., battery housings, sensor enclosures), we optimize heat-dissipating designs and vibration-resistant structures to withstand under-hood or interior environments; For medical device cases (e.g., diagnostic equipment enclosures, surgical tool housings), we design crevice-free, sterilizable structures with biocompatible materials and clear viewing windows (if needed). Key custom structural features include: precision mounting bosses (tolerance ±0.01mm), gasket grooves for sealing, integrated heat sinks, custom logos/embossing, clear plastic windows for displays, and tool-free assembly mechanisms. Every case design undergoes impact testing, sealing testing, and structural validation to ensure reliability.

Material matching is critical for molded plastic case performance, and our production service includes tailored material selection based on your application’s demands for protection, temperature resistance, chemical compatibility, and aesthetics. For general-purpose consumer electronics cases: We use ABS or PC for cost-effectiveness, good impact resistance, and easy molding. For rugged industrial/automotive cases: We select glass-fiber reinforced nylon (PA66+GF) or POM for enhanced mechanical strength and impact resistance. For high-temperature automotive under-hood cases: We choose heat-stabilized PPS or PEI that withstands 120–200°C. For medical device cases: We use FDA-approved PP, PC, or PEEK for biocompatibility and sterile performance. For chemical-resistant industrial cases (e.g., in chemical processing environments): We opt for PVDF or PP that resists acids, solvents, and cleaning agents. For transparent or semi-transparent cases (e.g., display enclosures): We use clear PC or acrylic for high light transmittance and scratch resistance.

Key Plastic Materials for Molded Cases & Their Applications

The performance and durability of molded plastic cases are directly tied to material properties, and our molded plastic case production service offers a range of proven materials tailored to specific application needs:

- ABS (Acrylonitrile Butadiene Styrene): Ideal for general-purpose molded plastic cases—consumer electronics casings, office equipment enclosures, and light-duty industrial control panels. Offers excellent impact resistance (15kJ/m²), good surface finish (easily paintable/printable), and cost-effectiveness. Suitable for operating temperatures of -20°C to 80°C and protection against minor impacts/dust.

- PC (Polycarbonate): For high-impact and transparent molded cases—electronic device display enclosures, automotive headlight housings, and medical device viewing windows. Provides exceptional impact resistance (20kJ/m²), 90% light transmittance, and dimensional stability. Operating temperature range: -40°C to 130°C. Suitable for cases requiring visibility, high durability, or moderate heat resistance.

- PA66+GF (Nylon 66 with Glass Fiber): For rugged industrial/automotive molded cases—heavy-duty equipment enclosures, battery housings, and under-hood sensor cases. Glass fiber reinforcement (20–30%) boosts tensile strength (up to 80MPa) and impact resistance, enabling protection against severe vibration and impact. Operating temperature range: -30°C to 120°C. Resistant to oils and greases, ideal for harsh industrial/automotive environments.

- PPS (Polyphenylene Sulfide): For high-temperature and chemical-resistant molded cases—automotive under-hood enclosures, chemical processing equipment housings, and high-temperature industrial ovens. Withstands operating temperatures up to 220°C, resists most acids, solvents, and oxidizers. Offers excellent dimensional stability and flame retardancy (UL94 V-0), suitable for extreme environment applications.

- PP (Polypropylene): For lightweight and chemical-resistant molded cases—medical device housings, water treatment equipment enclosures, and outdoor application cases. Lightweight (density 0.9g/cm³), corrosion-resistant, and cost-effective. Operating temperature range: -10°C to 95°C. FDA-approved grades available for medical and food-related applications, with good fatigue strength.

Molded Plastic Case Production Process: Features & Advantages

Our molded plastic case production process leverages precision injection molding technology optimized for enclosure manufacturing, ensuring consistent quality, dimensional accuracy, and protective performance. Key process features include: High-precision mold engineering—using hardened steel molds with CNC-machined cavities (tolerance ±0.005mm) to replicate intricate case details (snap-fit features, gasket grooves, ports) with consistency; Advanced process control—real-time monitoring of melt temperature (180–280°C, depending on material), injection pressure (70–130MPa), and cooling time to prevent warpage and ensure uniform material distribution (critical for sealing performance);Overmolding/insert molding capability—ability to overmold soft TPE gaskets for sealing or integrate metal inserts (screws, nuts) for enhanced strength during production; In-line quality inspection—100% dimensional scanning via optical measuring systems, sealing testing (IP rating validation), impact testing, and visual inspection (for surface defects) to ensure zero defects. We support both small-batch (100–1,000 units) prototyping and high-volume (100k+ units) production with multi-cavity molds to reduce per-unit costs.

The advantages of our molded plastic case production service include: Full customization—tailored designs to match your internal component layout, protection needs, and brand aesthetics, no off-the-shelf limitations; Superior protective performance—engineered for impact resistance, dust/water sealing (IP54–IP68), and environmental stability, ensuring internal parts safety; Cost efficiency—injection molding enables high-volume production with low per-unit costs, and integrated design (e.g., overmolded gaskets, insert molding) reduces post-processing steps;Lightweight advantage—plastic cases are 30–60% lighter than metal alternatives, reducing overall system weight and installation labor; Design flexibility—ability to mold complex shapes, integrated features (ports, logos, windows), and custom colors/finishes in one step.

Value-Added Assembly for Molded Plastic Cases

To complement our molded plastic case production service, we offer custom assembly solutions—integrating molded plastic cases into ready-to-install sub-assemblies. Examples include: assembling electronic device cases with circuit boards, connectors, and batteries (functionality tested); integrating industrial enclosures with control panels, gaskets, and mounting hardware (sealing tested); and kitting medical device cases with sterile components and packaging (ISO 7 cleanroom environment). Our assembly team uses specialized fixtures to ensure precise component alignment and secure installation, and conducts final functional and protective testing to validate assembly quality. This turnkey service streamlines your supply chain, saving you time and labor costs associated with sourcing and assembling individual components.

As your trusted molded plastic case production partner, we prioritize understanding your unique application needs—from protection level and temperature requirements to component layout and regulatory standards. Whether you need compact electronic casings, rugged industrial enclosures, or sterile medical device housings, our expertise ensures every molded plastic case is engineered for optimal performance and reliability. Contact us today to discuss your molded plastic case project and experience the difference of working with a specialized production partner.

We specialize incustom plastic knobs manufacturing, delivering precision-tailored plastic knobs and optional assembly solutions to clients across industrial machinery, automotive, consumer electronics, medical devices, and household appliance sectors. Unlike finished product traders, we focus exclusively on the design and production of custom plastic knobs—critical interface components that balance ergonomics, functionality, and aesthetics. Our core strength lies in translating your unique requirements into high-quality knobs: from ergonomic control knobs for industrial equipment to decorative knobs for household appliances—ensuring every manufactured knob meets your exact dimensional, performance, and visual standards.

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.