Tooling design for plastic housings

As expert plastic housing tooling designers, we engineer high-performance injection molds for complex enclosures across industries. From structural DFM to mass production, we deliver precision tooling, molded components, and turnkey assembly — optimized for function, cost, and manufacturability.

Why Tooling Design Defines Your Product Success?

“A plastic housing is only as good as its mold.”

90% of defects (sink marks, warpage, short shots) originate from tooling design flaws. Our scientific approach eliminates risks at the design phase:

±0.01mm Mold core/cavity tolerance

1000+ Cycles Lifespan with hardened steels (HRC 48-52)

<24hr DFM feedback on your CAD model

Core Customization Capabilities: Structure-Driven Tooling Design

1. Critical Housing Structures & Corresponding Tooling Solutions

Housing Feature Tooling Design Strategy Material Recommendations

Thin-Wall Sections

(0.8-2.0mm) High-speed injection channels + conformal cooling PC/ABS, LCP (low viscosity)

Snap-Fit Hooks Collapsible cores + EDM textured surfaces POM, Nylon 66 (high flex mod.)

EMI Shielding Grooves Precision slides + vacuum venting Conductive PC/ABS, Shielded PP

IP68 Sealing Surfaces Zero-draft angles + mirror polishing (Ra<0.05μm)TPU overmold, Silicone-bonded PC

Cosmetic Textures Laser-etched mold cavities (VDI 18-40) ABS (Class A finish), PMMA/PC

2. Material-Specific Tooling Engineering

High-Temp Materials (e.g. PEEK, PEI):

Hot runner systems (500°C capable)

Tool steel: H13 with nitride coating

Abrasive Filled Polymers (e.g. 40% GF Nylon):

Dual-hardened cores (S7 steel)

Ventilated ejector pins

Optical-Grade Plastics (e.g. COP, PMMA):

Diamond-polished cavities + inert gas purging

Core Customization Capabilities: Structure-Driven Tooling Design：

1. Critical Housing Structures & Corresponding Tooling Solutions

Housing Feature Tooling Design Strategy Material Recommendations

Thin-Wall Sections

(0.8-2.0mm) High-speed injection channels + conformal cooling PC/ABS, LCP (low viscosity)

Snap-Fit Hooks Collapsible cores + EDM textured surfaces POM, Nylon 66 (high flex mod.)

EMI Shielding Grooves Precision slides + vacuum venting Conductive PC/ABS, Shielded PP

IP68 Sealing Surfaces Zero-draft angles + mirror polishing (Ra<0.05μm)

TPU overmold, Silicone-bonded PC

Cosmetic Textures Laser-etched mold cavities (VDI 18-40) ABS (Class A finish), PMMA/PC

2. Material-Specific Tooling Engineering

High-Temp Materials (e.g. PEEK, PEI):

Hot runner systems (500°C capable)

Tool steel: H13 with nitride coating

Abrasive Filled Polymers (e.g. 40% GF Nylon):

Dual-hardened cores (S7 steel)

Ventilated ejector pins

Optical-Grade Plastics (e.g. COP, PMMA):

Diamond-polished cavities + inert gas purging

Precision Injection Molding: Turning Design into Reality

We operate 80-2200T presses (Fanuc, Engel, Haitian) with advanced capabilities:

Process Innovations for Housing Quality

Challenge Our Solution Quality Outcome

Warpage on large panels MuCell® microfoaming + 3D temp control Flatness tolerance ±0.1mm/m

Sink marks over ribs Pulsed cooling + sequential valve gating Zero cosmetic defects

Multi-material sealing Rotary mold + overmolding Bond strength >15 MPa

Micro-features (0.2mm) High-speed servo ejection Feature retention 99.9%

In-Process Quality Control

IoT-enabled Monitoring: Real-time pressure/temperature mapping

Vision Inspection: Automated detection of gate vestiges, flash

CMM Verification: Daily dimensional checks against GD&T

Value-Added Services: Beyond Molded Parts

Tooling & Post-Processing

Surface Enhancement:

In-mold texturing (leather, grit, gloss)

Secondary: Pad printing, IMD/IML, vacuum metallization

Joining & Assembly:

Ultrasonic welding for hermetic seals

Laser welding of transparent housings

Automated screw insertion + adhesive bonding

Functional Testing

IP68 pressure decay tests

10,000-cycle hinge fatigue testing

CT scanning for internal void analysis

End-to-End Workflow: From Concept to Shipped Product

Design Phase:

DFM/Analysis (Moldflow® simulation)

Material selection advisory

Tooling Phase:

3D mold design (UG NX/TopSolid)

CNC/EDM machining (AgieCharmilles, Makino)

Production Phase:

Scientific molding process validation

In-house tool maintenance

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.