Mold for insert molding

Mold for Insert Molding – Custom Solutions for Complex Plastic Parts

Looking for a reliable way to combine plastic and metal parts into one strong and functional component? We specialize in custom molds for insert molding, ideal for producing durable plastic parts with metal or other material inserts.

Whether you need electrical contacts, threaded inserts, or reinforced components, our insert molding molds are designed to deliver precision, efficiency, and high performance.

What is Insert Molding?

Insert molding is a process where metal parts (or other materials) are placed into a mold, and then plastic is injected around them. The result: a single, solid part with both materials permanently bonded.

This method is perfect for creating:

Plastic parts with embedded metal cores

Threaded inserts for strong screw connections

Plastic housings with electrical connectors

Reinforced structural parts

Medical devices with metal tips or components

Custom Mold Design – Built for Your Unique Product

Every insert molding project is different. That’s why we offer fully custom mold design services to match your exact product needs.

We support a variety of insert types:

Brass, stainless steel, or aluminum inserts

Screws, pins, or threaded bushings

Wire or cable ends

Circuit boards or electronic components

Multiple inserts in one part

Our engineers work closely with you to ensure proper part alignment, tight tolerances, and efficient mold flow for consistent and high-quality results.

Materials We Work With

Our insert molding molds are compatible with a wide range of engineering-grade plastics, including:

ABS – Rigid and strong, ideal for general-purpose parts

PC (Polycarbonate) – High strength and heat resistance

PA (Nylon) – Excellent for wear-resistant and structural parts

PBT – Great for electrical components and connectors

PP (Polypropylene) – Lightweight and chemically resistant

TPE/TPU – Flexible for overmolding soft grips or seals

We help you choose the right material based on your product’s function, durability, and environment.

Insert Molding Process – Step-by-Step

Insert Placement – Metal or component inserts are manually or automatically placed into the mold

Injection Molding – Heated plastic is injected around the insert

Cooling and Ejection – The part is cooled and removed from the mold

Quality Inspection – Each part is checked for proper bonding and finish

This method ensures strong mechanical bonds without the need for adhesives or secondary assembly.

Our Services – More Than Just Molds

We offer end-to-end services for your insert molding projects:

Custom Mold Design and Manufacturing

Plastic Part Production

Insert Sourcing and Assembly

Post-Molding Assembly and Packaging

Prototyping and Small Batch Runs

Mass Production for OEM Parts

Whether you need low-volume prototypes or high-volume production, we have the tools and experience to deliver.

Applications of Insert Molding

Insert molding is widely used in:

Consumer electronics – USB connectors, charging ports, smart devices

Automotive – Sensor housings, switches, gear components

Medical devices – Surgical instruments, diagnostic tools

Industrial equipment – Control panels, machine parts

Home appliances – Switches, knobs, handles with metal reinforcement

Why Choose Us?

Custom Engineered Molds – Built for your specific inserts and product design Fast Turnaround – From design to samples in just days

Precision Manufacturing – Tight tolerances, clean finishes One-Stop Service – Mold making, molding, assembly, and shipping

Global Delivery – We ship worldwide

Get a Free Quote Today

Looking for a professional partner for your insert molding project? Contact us now for a free quote and expert advice. We help you create the perfect mold and deliver high-quality plastic parts that meet your 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.