2026-09-30
blog
Founded in China and backed by over 23 years of manufacturing experience, Junchi specializes in the design and production of protective cases for digital devices. From rugged laptop cases to precision-molded phone and tablet shells, we work with global brands, distributors, and OEM partners to deliver reliable, scalable protection solutions.
The process of selecting a phone case manufacturer is far more than just locating a factory that has a low price. The correct production partner must comprehend materials, device sizes, tooling, product testing, customization, and repeat manufacturing.
What seems to be a simple case may be very technical in the manufacturing process. Even a couple of millimetres can influence the camera clearance, access to buttons, wireless charging, or the fit in general.
Then, what to do to select a phone case manufacturer to a new line of products? Begin by examining the technical capacity of the manufacturer, sample process, quality control, and capacity to meet your specific needs.
An example is Junchi, which offers custom phone case manufacturing to brands, distributors, and retailers, including OEM and ODM development, mold development, material selection, printing, assembly, and inspection.
Among the initial questions to pose to a phone case manufacturer is whether it is OEM, ODM, or both.
This is important since a supplier who only deals with ready-made products might not have the engineering capacity needed to deal with a truly custom case.
An effective custom phone case manufacturer ought to be in a position to provide reasons as to why a certain material is appropriate for your product.
Common options include:
The building must be constructed according to the purpose. A lightweight daily case requires a balance of flexibility and protection that is different than a tough case. The product line that Junchi currently has is based on PC, TPU, silicone, acrylic, and hybrid structures in various designs. Its choice of materials depends on the device model, level of protection, finish, and target price.
The Crystal Clear Case of iPhone 18 Fold, which Junchi describes as the Model D105, is a good example of why both material and structure should be thought of as one.
The case is based on 2.0 mm PC + TPU construction. The shell is made of rigid polycarbonate that gives it structural support, and the frame is made of TPU to absorb shocks at the edges. The product also has an anti-yellowing layer, reinforced front cover, and a precision snap-on design.
To a buyer considering a supplier, such information is more valuable than an assertion that a case is of high quality. They demonstrate the real material mix, building and protection characteristics being provided.
Custom colours, Pantone matching, logo placement, and surface finishes are also supported by the product and may be significant in the case of the private-label and branded product programs.
The mold is one of the aspects that should not be disregarded when learning how to select a phone case manufacturer. Precise tooling is needed in injection molding as the basic geometry of the completed case is defined by the mold. Dimensions are required in camera openings, buttons, ports, corners, and internal clearances.
Inquire about whether the manufacturer deals with:
Communication can also be simplified through in-house mold development since the design changes do not need to be transferred between multiple unrelated suppliers.
According to Junchi, its manufacturing process involves its own structure design and mold development, which is then followed by sampling and manufacturing.
When you know how to find a phone case supplier, request that they send you a physical sample or pre-production sample prior to placing a large order. Test the sample on the actual phone model. Test the fit, camera position, buttons, ports, edges, and finish.
In the case of a custom product, also check:
According to Junchi, it is possible to create samples to test fit, appearance, material, colour, and functionality before mass production.
When you are creating a brand of your own phone case, protection may be as important as customization. An effective manufacturer of protective cases must have the capability to talk about materials, colours, surface finishes, printing, and packaging instead of just providing standard products.
Junchi advocates UV printing, IMD, IML and silk-screen printing for appropriate case materials. It also provides matte, glossy, metallic, frosted and soft-touch finishes, and custom colour and branding.
The printing method ought to be chosen based on the case material and the required finish. This may influence adhesion, appearance, and production consistency.
A good phone case production company must be in a position to tie design, materials, tooling, production, and inspection.
A phone case can be tiny; however, it requires a lot of manufacturing to get the details right. Between the 2.0 mm PC + TPU structure and fine-tuning of the molding, anti-yellowing treatment, and branding of your choice, every single detail can influence the final product. Junchi meets these needs with the help of OEM and ODM production of phone cases, in-house mold development, sampling, and quality control.
Willing to create a bespoke case for your brand? Select Junchi for your next phone case project and talk with its manufacturing team about your device model, materials, design, branding, and production needs.
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