Ningbo (P&M) Plastic Hardware Products Co. has 15 years of mold making technology for Custom Injection molded parts. We have ISO 9001 certificates. We provide professional Plastic parts manufacturing and we are professional custom Plastic parts manufacturing. We have sufficient experience in product raw material selection and mold material selection. We are well aware of the properties of various materials and the advantages and disadvantages of mold design. We will recommend suitable materials and professional design advice for our clients.
We specialize in production plastic parts supply and value-added assembly—delivering stable, high-volume custom plastic components to clients across automotive, consumer electronics, industrial machinery, medical devices, and packaging sectors. Unlike finished product traders, we focus on scalable manufacturing of plastic parts for your mass production lines, ensuring consistent quality, on-time delivery, and cost efficiency. Our core strength lies in optimizing every link of the production supply chain—from mold engineering and material sourcing to automated molding and assembly—meeting the rigorous demands of large-scale production (100,000+ units) while maintaining full customization to your structural and performance requirements.



Customization for Production Parts: Structural Optimization & Material Sourcing
Production plastic parts supply requires structural optimization for scalability—we collaborate with your engineering team to refine part geometries that balance customization, durability, and mass-producibility. For automotive production parts (e.g., 1M+ door panel clips), we optimize snap-fit structures to ensure consistent assembly force (±5N) and 100k+ use cycles. For consumer electronics housings (500k+ units), we design thin-walled structures (0.8–1.5mm) with uniform wall thickness to avoid warpage during high-volume molding. Key custom structural features for production parts include: precision threading (M1–M50) with consistent pitch tolerance (±0.01mm), reinforced load-bearing ribs (for industrial brackets), integrated assembly guides (reducing line downtime), and mold-friendly draft angles (ensuring 99.9% demolding success). Every structure is validated via pre-production runs to eliminate scalability risks.
Material sourcing for production parts focuses on stability, cost-efficiency, and compliance—we partner with certified global suppliers to secure consistent resin quality for large-scale runs, while tailoring materials to your application. For automotive under-hood parts (200k+ units), we source glass-fiber reinforced nylon (PA66+GF 30%) with stable heat resistance (120°C+). For food packaging components (1M+ units), we use FDA-approved PP with consistent melt flow rate (MFR 10–15g/10min) to avoid molding variations. Our production material expertise includes: flame-retardant ABS for 500k+ electronic enclosures (UL94 V-0), medical-grade PC for 100k+ diagnostic device parts (ISO 13485), and wear-resistant POM for 300k+ mechanical gears. We implement strict material traceability (batch-to-part tracking) to ensure compliance with industry standards for every production run.
Key Materials for Production Plastic Parts & Industrial Applications
Production plastic parts supply relies on materials that balance performance, consistency, and cost for large-scale runs. Below are core materials and their typical production applications, showcasing our sourcing and matching capabilities:
- Polypropylene (PP): The backbone of high-volume production—packaging components (1M+ bottle caps), automotive interior trims (500k+ door handles), and home appliance parts (300k+ washing machine components). Cost-effective, chemical-resistant, and with stable molding properties (low shrinkage 1.0–1.5%), ideal for mass production.
- ABS: Preferred for durable production parts—consumer electronics housings (500k+ smartphone back covers), automotive trim (200k+ dashboard inserts), and industrial tool casings (150k+ units). Offers consistent impact resistance (15kJ/m²) and color stability (RAL/Pantone matching with ≤2% batch variation), suitable for brand-aligned mass production.
- TPU/TPE: For flexible production components—automotive door seals (500k+ units), wearable device straps (300k+ units), and tool grips (200k+ units). Stable hardness (Shore A 50–80) and elasticity across batches, with skin-friendly and weather-resistant grades for consumer/automotive use.
- Nylon (PA6/PA66 + GF): Industrial production workhorse—automotive suspension brackets (200k+ units), industrial gears (300k+ units), and electrical connectors (500k+ units). Glass-fiber reinforcement (20–40%) ensures stable tensile strength (60–80MPa) across large batches, with heat resistance up to 120°C for harsh environments.
- Polycarbonate (PC): For safety-critical production parts—automotive headlamp lenses (100k+ units), medical device windows (150k+ units), and electrical enclosures (200k+ units). Consistent transparency (90% light transmittance) and shatterproof properties meet global safety standards, with UV-resistant grades for outdoor applications.
- FDA-Approved Resins (PP, PET, PEEK): For food/medical production parts—packaging lids (1M+ units), medical syringe components (200k+ units), and food-processing machine parts (100k+ units). Strict batch-to-batch compliance with FDA 21 CFR 177 and ISO 13485, ensuring safety for high-volume end-use.
Production Injection Molding Process: Features for Scalable Supply
Our production plastic parts supply is supported by automated, high-efficiency injection molding processes optimized for large-scale runs. Key process features include: high-durability mold engineering (hardened steel molds with 1M+ cycle life, multi-cavity designs 32–128 cavities for small parts), fully automated production lines (robotic part removal, in-line degating, and sorting to reduce labor and error), precision process control (real-time monitoring of melt temperature 180–280°C, injection pressure 80–120MPa, and cooling time to ensure batch consistency), and statistical process control (SPC) (tracking key dimensions and properties across every 1,000-unit batch to maintain Cpk ≥ 1.33). We also integrate secondary processes (ultrasonic welding, plating, texturing) into the production line for seamless scalability.
The advantages of our production plastic parts supply include: stable quality (ISO 9001, IATF 16949, ISO 13485 certifications, defect rate ≤ 0.1% for critical parts), cost efficiency (multi-cavity molds reduce per-unit cost by 20–30%, bulk material sourcing cuts resin costs by 10–15%), scalable capacity (daily output up to 500,000 units with 24/7 production capability), and reliable delivery (just-in-time (JIT) supply, safety stock management, and global logistics support to align with your production schedules). Our process ensures every batch of production parts matches the initial sample, eliminating line stoppages due to quality variations.
Production-Grade Assembly Services: Streamlining Mass Production
To enhance our production plastic parts supply, we offer scalable assembly services for high-volume sub-assemblies—integrating plastic parts with metal inserts, electronic components, or other materials to deliver ready-to-install units. Examples include: assembling 500,000 automotive door clip sets (plastic clips + rubber gaskets), attaching metal pins to 300,000 industrial brackets, or packaging 100,000 sterile medical component kits (ISO 7 cleanroom). Our assembly lines are automated with custom jigs and in-line quality checks, ensuring assembly consistency (error rate ≤ 0.05%) and matching the throughput of your production line. This turnkey service reduces your in-house labor costs and supply chain complexity.
As your trusted production plastic parts supply partner, we act as an extension of your manufacturing team—prioritizing stability, scalability, and cost efficiency to support your mass production goals. From mold engineering and material sourcing to automated molding and assembly, every step is optimized to meet the rigorous demands of large-scale production while maintaining full customization. Whether you need 100,000 or 10 million plastic parts, contact us today to discuss your production supply needs and experience reliable, high-quality solutions that drive your operational success.

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.
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Product Name |
TPE injection molding service
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Pls provide |
2D, 3D, samples, or the size of the multi-angle pictures |
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Mould Time |
20-35 Days |
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Product time |
7-15 Days |
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Mould precision |
+/-0.01mm |
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Mould life |
50-100 million shots |
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Producing Process |
Audit drawings - mold flow analysis - design validation - Custom Materials - mold processing - core processing - electrode machining - Runner system processing - parts processing and procurement - machining acceptance - cavity surface treatment process - complex mode Die - The entire mold surface coating - Mounting plate - mold sample - sample test - sending samples |
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Mould cavity |
One cavity, multi-cavity or same different products be made together |
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Mould material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
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Runner system |
Hot runner and cold runner |
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Base material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
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Finish |
Pitting the word, mirror finish, matte surface, striae |
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Standard |
HASCO, DME or dependent upon |
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Main technology |
Milling, grinding, CNC, EDM, wire cutting, carving, EDM, lathes, surface Finish, etc. |
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Software |
CAD,PRO-E,UG Design Time: 1-3 days (normal circumstances) |
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Product material |
ABS,PP,PC,PA6,PA66,TPU,POM,PBT,PVC,HIPS,PMMA,TPE,PC/ABS,TPV,TPO,TPR,EVA,HDPE,LDPE,CPVC,PVDF,PPSU.PPS. |
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Quality system |
ISO9001:2008 |
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Establish time |
20days |
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Equipment |
CNC,EDM,Cutting off Machine,plastic machinery,etc plastic suitcase mould zhe jiang |
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)

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.

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.

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.
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.