Ningbo (P&M) Plastic Metal Products Co., Ltd. has 17 years of mold manufacturing technology and can customize custom parts out of plastic. We provide professional customized custom parts out of plastic services, and we are a professional custom parts out of plastic manufacturer. We have sufficient experience in selecting product raw materials and mold materials. In the process of customizing custom parts out of plastic, our factory can provide one-stop service. We have design and production capabilities related to custom parts out of plastic, such as: CAD design, mold manufacturing, injection molding, plastic product production, assembly and other technologies.
In addition, our company has established cooperative relationships with plastic raw material suppliers, printing manufacturers, etc. to ensure the supply of raw materials and printing quality. Through our rich experience and perfect supply chain, our company can provide customers with high-quality customized custom parts out of plastic products to meet their specific needs. At the same time, we have 10 years of professional foreign trade service experience, understand the foreign trade process, and better serve our customers. For custom parts out of plastic products, we can make corresponding plastic parts, which is mainly done through injection molds.


This is a refined core process for parts injection molding for you. It is not merely a list of steps, but also a closed-loop management system that ensures controllable quality, efficiency and cost
Detailed explanation of the five major stages of the process
Phase One: Requirements Analysis and Design freezing
Core objective: To ensure that product designs can be manufactured efficiently and at low cost.
Key activities
In-depth communication: Clarify the function, appearance, precision, certification (such as FDA, UL) and cost targets of the parts.
Manufacturability design analysis: Engineers analyze 3D drawings, optimize wall thickness, draft Angle, reinforcing ribs, etc., to avoid problems such as shrinkage and deformation in the later stage.
Material selection: Choose the appropriate plastic (such as ABS, PC, PP) based on its performance (strength, heat resistance, chemical resistance, etc.).
Output: Frozen 3D data and the DFM report confirmed by both parties.
Phase Two: Mold Design and Manufacturing
Core objective: To manufacture precision molds that can stably produce high-quality parts.
Key activities
Mold flow analysis (CAE simulation) : Simulate the plastic filling and cooling processes in a computer, predict and solve potential defects such as weld lines, cavitation, and warpage in advance, and optimize the gate and cooling design.
Precision machining: Core components such as mold cores and sliders are processed using CNC, electrical discharge machining, wire cutting and other techniques.
Surface treatment and assembly: The cavity is polished or etched and precisely assembled and debugged by senior fitters.
Output: A set of high-precision injection molds that can be tested.
Phase Three: Mold testing and process Optimization
Core objective: Verify the mold and lock in the "formula" for stable production.
Key activities
Mold testing: Debug the mold on the injection molding machine and produce the first batch of samples.
Measurement and testing: Use a three-coordinate measuring machine to measure dimensions and conduct appearance and functional tests.
Parameter optimization: Adjust parameters such as temperature, pressure, and speed to solve problems that occur during mold testing.
Output: Qualified samples signed by the customer and the locked process parameter table.
Phase Four: Mass Production and Process Control
Core objective: To ensure that each mold product is as qualified as the first sample.
Key activities
Standardized operation: Automated production (mechanical hand picking up parts) is carried out according to the locked process parameters.
Statistical process control: Real-time monitoring of key process parameters (such as injection time), random inspection of key product dimensions, use control charts to warn of abnormalities, and achieve preventive quality control.
Output: Stable and consistent batch products.
Phase Five: Quality Assurance and Delivery
Core objective: To deliver qualified products to customers in good condition and on time.
Key activities
Final inspection: Conduct 100% visual inspection or functional spot checks.
Packaging and delivery: Use scratch-resistant packaging and deliver on time.
Document delivery: Provide quality documents such as inspection reports and material certifications.
Output: Deliverables that satisfy customers and complete quality certificates.
We are a custom parts out of plastic manufacturer, providing high-quality custom parts out of plastic manufacturing. As long as you want to customize/develop custom parts out of plastic products, you can find us. We have professional injection mold design and mature manufacturing technology, providing you with one-stop service, from product design-mold making-product production-product packaging-product transportation, we can help you in every link. As long as you come to us, we will provide you with the ultimate service and satisfy you in terms of product quality, production time, information dialogue, etc.
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Product Name |
Treadmill moulding |
|
Pls provide |
2D, 3D, samples, or the size of the multi-angle pictures |
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Mould Time |
20-35 Days |
|
Product time |
7-15 Days |
|
Mould precision |
+/-0.01mm |
|
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 |
|
Mould material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Runner system |
Hot runner and cold runner |
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Base material |
P20,2738,2344,718,S136,8407,NAK80,SKD61,H13 |
|
Finish |
Pitting the word, mirror finish, matte surface, striae |
|
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) |
|
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. |
|
Quality system |
ISO9001:2008 |
|
Establish time |
20days |
|
Equipment |
CNC,EDM,Cutting off Machine,plastic machinery,etc plastic suitcase mould zhe jiang |




We are Custom Plastic Mold factory. Our factory is plastic injection mold maker. we has 17 years of experience in professional custom plastic mold and 10 years of foreign trade experience. We are custom Plastic Mold supplier. We can provide custom Plastic Mold service. Our factory can make the Injection molded plastic parts, and the quality of the products will satisfy you.
We have more than 50 high-end machines and hundreds of engineers and designers. We can provide one-stop service, from product design - mold making - product production - product packaging - transportation. We have a complete production chain. We can meet all your requirements.
Professional custom mold service, Plastic mold design and manufacturing .plastic product production, product design, mold design, blow mold customization, rotational mold customization, die-casting mold customization. 3D printing services, CNC manufacturing services, product packaging, customized packaging, shipping services.









We always adhere to the principles of quality first and time first. While providing customers with the highest quality products, try to maximize the production efficiency and shorten production time. We are proud to tell every customer that our company has not lost any customer since its establishment.If there is a problem with the product, we will seek a solution actively and take responsibility to the end.
Q1: Are you trading company or manufacturer ?
A: We are manufacturers.
Q2. When can I get the quotation?
A: We usually quote within 2 days after we get your inquiry.
If you are very urgent, please call us or tell us in your email so that we can quote for you first.
Q3. How long is the lead-time for mold?
A: It all depends on the products' size and complexity. Normally, the lead time is 25 days.
Q4. I have no 3D drawing, how should I start the new project?
A: You can supply us a molding sample, we will help you finish the 3D drawing design.
Q5. Before shipment, how to make sure the products quality?
A: If you don't come to our factory and also don't have the third party for inspection, we will be as your inspection worker.
We will supply you a video for production process detail include process report, products size structure and surface detail, packing detail and so on.
Q6. What is your payment terms?
A: Mold Payment: 40% deposit by T/T in advance, 30% second mold payment before sending out the first trial samples, 30% mold balance after you agree the final samples.
B:Production Payment: 50% deposit in advance, 50% before sending out the final goods.
Q7: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit for best quality products.
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.