Custom design parts case moulding

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 design parts case moulding 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 design parts case moulding products, we can make corresponding plastic parts, which is mainly done through injection molds.

The core process of custom injection molding for parts boxes, as a box-type product, its characteristics (such as thin walls, snap fasteners, and anti-warping) determine special considerations in design and craftsmanship

�� first stage: requirements analysis and design

This is the key to determining whether the parts box can meet the usage requirements.

Function and structure definition: Clearly define the partitioning method of the parts box, load-bearing requirements, stacking function, opening and closing method of the cover (such as hinges, clips), and whether a transparent window is needed. Special attention should be paid to planning the fine structures such as internal slots and partitions well.

Design for manufacturability

Uniform wall thickness: The parts boxes are mostly thin-walled components. It is necessary to ensure uniform wall thickness (for example, 1.5-2.5mm) to avoid local excessive thickness causing shrinkage marks and insufficient filling due to excessive thinness.

Anti-deformation design: Large planes and right angles are prone to warping. It is necessary to enhance them by adding reinforcing ribs rather than simply increasing the wall thickness. The design of the parting surface needs to take into account both appearance and demolding.

Detail handling: The clips and hinges need to be designed to prevent breakage. The draft Angle is indispensable.

Core: Mold flow analysis and process simulation: This step is crucial for the parts box. Through software simulation such as Moldflow, the position and number of gates can be optimized in advance (which has a significant impact on filling uniformity), the weld line and warpage deformation can be predicted and eliminated (for example, the research shows that optimizing the cooling system can reduce warpage by 20%-60%), and the initial process parameter window can be locked.

��️ phase 2: Mold manufacturing and trial mold

After the design is frozen, it enters the physical verification stage.

Mold processing: High-precision processing is carried out using equipment such as CNC and EDM machines. The complex internal structure requires sliders and inclined top mechanisms. The surface of the mold may undergo embossing treatment to achieve anti-slip or decorative textures.

Mold trial and sample verification: The main purpose of conducting T0 mold trial is:

Verify dimensions and assembly: Use a three-coordinate measuring machine to check key dimensions and test whether the assembly of the box body, cover, and internal partition is smooth.

Test functions: Test stacking stability, snap-on opening and closing life, load-bearing capacity, etc.

Optimize the process: Adjust parameters such as temperature, pressure, injection speed, and cooling time to address issues like warping, shrinkage, and material shortage that occur during mold testing.

�� Phase 3: mass production and post-processing

After passing all verifications, it enters stable mass production.

Batch injection molding production: Stable production under optimized process parameters and regular spot checks.

Post-processing procedures: Parts boxes often need to undergo secondary processing such as spraying (to change color or increase the feel) and silk-screen printing (to print logos or labels).

Strict quality control: In addition to random size checks, finished products need to undergo drop tests, stacking pressure tests, etc., to ensure durability.

�� Key points and pitfalls to avoid

Material selection: Commonly used materials include ABS (high strength, easy to spray), PP (good toughness, light weight, low cost), PC (high transparency, impact resistance), or PS (excellent rigidity, low cost). When making a choice, one needs to balance toughness, rigidity, chemical resistance and cost.

Attach great importance to DFM and mold flow analysis: Insist on requiring suppliers to provide manufacturability design reports and mold flow analysis reports. This is the most effective means to prevent large-scale problems in the later stage and reduce costs.

Physical sample verification: It is necessary to personally test the feel, assembly tightness and stacking stability of the sample, which cannot be replaced by drawings and sample pictures.

Pitfalls to avoid

Avoid weld lines on the surface: Optimize the gate through mold flow analysis to prevent weld lines from appearing on the surface or in high-strength areas.

Control mold costs: Part box molds may be complex due to the large number of sliders and inclined tops. It is necessary to clarify the scope included in the mold quotation with the supplier.

First piece full inspection: The first batch of mass-produced products must undergo full-size inspection. Only after confirming their qualification can they be mass-produced.

We are a custom design parts case moulding manufacturer, providing high-quality custom design parts case moulding manufacturing. As long as you want to customize/develop custom design parts case moulding 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.

Plastic Injection Mould making

Plastic molding specifications

Mold design:

Transaction process:

Mold testing:

Product packaging

Factory

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.

Services we provide:

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.

FAQ

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.