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Injection Mold Manufacturing
With its in-house mold shop, precision machining equipment, and experienced mold team, Hongqing offers a full range of mold development services—from mold design, precision machining, and mold trial optimization to mass production implementation. The company achieves a machining accuracy of ±0.01 mm and supports the development of medium- to large-sized plastic molds up to 1.5 meters in size.
We don't only build to print. If your product is still at the concept stage, Hongqing's R&D team provides OEM/ODM product development support: industrial design, mechanical and electronics engineering, then tooling and mass production, all by one team.
Learn about product development →OEM/ODM services →8 stages from idea to mass production
- 01Concept evaluation and product definition
- 02Product Design & Engineering
- 033D-printed / CNC prototypes
- 04In-house mold making (±0.01 mm)
- 05Mold trial and sample approval
- 06Injection molding (90+ presses)
- 07Surface finishing (2 robotic painting lines)
- 08Clean-room assembly & shipping
- ISO 9001
- ISO 14001
- IATF 16949
- BSCI · Sedex
- 18-person QC team
- In-house mold shop, ±0.01 mm
- 90+ injection molding machines
- 20,000 m² factory
What is plastic mold manufacturing?
For plastic products, an excellent mold must not only be capable of forming the product but also ensure dimensional accuracy, structural stability, smooth demolding, reliable service life, easy maintenance, and efficient mass production. Hongqing has its own mold manufacturing team, equipped with Sodick EDM machines, Sodick wire EDM machines, Makino machining centers, and large-scale machining equipment. Mold machining accuracy reaches ±0.01 mm, enabling the development of medium-to-large plastic molds up to 1.5 meters in size, and facilitating seamless integration with 1,300-metric-ton injection molding machines for trial runs and mass production ramp-up.
Hongqing Mold Manufacturing Services
Hongqing provides customers with one-stop services ranging from mold design to mold manufacturing, focusing on product structure, mold life, machining precision, mold trial validation, and mass production stability. We focus not only on whether a mold can be manufactured, but also on whether it is suitable for subsequent injection molding mass production and whether it can ensure long-term, stable production.
Mold Design and Structural Evaluation
Before manufacturing a mold, the engineering team evaluates the parting line, gate design, ejection mechanism, cooling system, and demolding method based on the product’s structure, material properties, aesthetic requirements, and mass production needs, thereby mitigating risks associated with subsequent mold testing and mass production in advance.
- Evaluating Product Design and Mold Feasibility
- Optimize parting lines, gate design, ejection, and cooling schemes
- Early detection of shrinkage, warping, flash, and demolding risks
Precision Mold Machining
The company is equipped with high-precision machining equipment, including Sodick EDM machines, Sodick wire EDM machines, and Makino machining centers. Mold machining accuracy can reach ±0.01 mm, meeting the machining requirements for high-precision plastic molds, molds with complex structures, and molds for precision plastic parts, thereby ensuring the accuracy of key mold dimensions, assembly stability, and consistency in subsequent mass production.
- Mold machining accuracy can reach ±0.01 mm
- Equipped with Sodick spark erosion machines, Sodick wire EDM cutting machines, Makino machining centers, and other equipment
- Supports high-precision machining of complex structures and precision plastic molds
Manufacturing of High-Durability Mass-Production Molds
For products with electronic functions, we can assist in evaluating the layout of components such as PCBs, batteries, buttons, interfaces, displays, light positions, speakers, and sensors to ensure that the electronic design integrates seamlessly with the plastic structure, thereby reducing risks associated with later assembly and functional testing.
- Designing Mold Structures Based on Mass Production Requirements
- Focus on mold life, stability, and long-term maintenance
- Supports everything from small- and medium-volume trial production to high-volume production needs
Medium- to Large-Scale Mold Manufacturing Capabilities
Hongqing has the capability to develop and manufacture medium- to large-sized plastic molds, with a maximum mold size of 1.5 meters. Equipped with large-scale machining equipment, we can meet the mold manufacturing needs for products such as large structural components, industrial enclosures, home appliance parts, and automotive parts. Combining our 1,300-metric-ton injection molding machine with our experience in medium- and large-scale injection molding, we provide customers with integrated support ranging from large-scale mold development to trial runs and mass production.
- The maximum mold size is 1.5 meters
- Equipped with large-scale machining equipment, we support the machining of medium- to large-sized molds
- Suitable for products such as large enclosures, industrial structural components, home appliance parts, and automotive parts
Mold Testing, Validation, and Optimization
Once the mold is complete, we can conduct trial runs in collaboration with the injection molding shop to verify the mold’s performance, inspecting product dimensions, appearance, flash, shrinkage, warpage, assembly results, and molding stability, and optimize the mold based on the trial run results.
- Conduct mold trials, sample verification, and problem analysis
- Optimize molding issues such as flash, shrinkage, warpage, and white spots
- Ensure that the mold enters a stable mass production phase
Integration of Molds and Injection Molding Mass Production
Hongqing offers integrated mold manufacturing and injection molding capabilities. Once mold development is complete, the process seamlessly transitions to trial runs, mass production, surface treatment, and assembly and delivery, reducing the costs associated with repeated communication between the customer and the mold manufacturer and injection molding facility.
- Coordination between the in-house mold shop and the injection molding workshop
- Once the mold is developed, it can be quickly integrated into injection molding production.
- Reduce communication costs and improve delivery efficiency
Frequently Asked Questions
Yes. Customers can provide 3D drawings, 2D engineering drawings, product samples, visual renderings, or functional requirements. Hongqing can use this information to conduct structural evaluations, design mold solutions, and manufacture molds. If the customer’s information is incomplete, we can also assist with product structure optimization and pre-mold evaluation.
Hongqing has its own mold manufacturing team and machining equipment, enabling it to handle all stages of the process, including mold design, precision machining, assembly, trial runs, and optimization. Having an in-house mold shop allows for better coordination with subsequent injection molding production, reduces communication time, and improves the efficiency of mold modifications and mass production ramp-up.
Yes. Hongqing can develop complex molds featuring sliders, tapered cores, inserts, undercuts, and multi-cavity designs based on product structural requirements. These molds are suitable for consumer electronics housings, automotive parts, industrial enclosures, home appliance components, 3C products, and other precision plastic parts.
Accordion Content
Hongqing Molds achieves machining accuracy of up to ±0.01 mm. Equipped with high-precision machinery such as Sodick EDM machines, Sodick wire EDM machines, and Makino high-speed machining centers, we can meet the machining needs for precision plastic parts, complex structural components, and medium- to large-sized plastic molds. We integrate mold design reviews, machining process control, assembly inspections, and mold trial validation to ensure mold precision and mass production stability.
Yes. Hongqing has integrated capabilities in mold manufacturing and injection molding. Once the mold is completed, it can undergo trial runs in the injection molding workshop, and optimizations can be made based on the sample’s dimensions, appearance, and assembly. After confirmation of compliance, the process proceeds to mass production, surface treatment, and assembly and delivery.
We ensure quality control through processes such as mold design reviews, precision machining, mold assembly inspections, mold trial validation, and optimization of molding issues. The company is equipped with machining equipment such as Sodick EDM machines, Sodick wire EDM machines, and Makino machining centers, enabling mold precision of up to 0.01 mm and ensuring the accuracy and stability of critical mold components.
Before tooling is initiated, it is necessary to confirm details such as the product’s structure, materials, appearance requirements, assembly methods, dimensional tolerances, surface finishes, and mass production quantities. We conduct structural and process evaluations prior to tooling to help customers identify in advance any issues that may affect mold manufacturing, injection molding, and subsequent assembly.
Ready to start your mold project?
Whether it’s precision molds for small parts, molds with complex structures, or medium- to large-sized plastic molds up to 1.5 meters in size, Hongqing can provide mold design, precision machining, mold trial validation, and injection molding mass production support. Leveraging mold machining precision of ±0.01 mm, large-scale machining equipment, and a 1,300-metric-ton injection molding machine, we help our customers achieve more stable and efficient mold development and mass production delivery.
Mold Making at a Glance
| Equipment | Sodick EDM, Sodick wire EDM, Makino high-speed machining centers |
|---|---|
| Machining accuracy | ±0.01 mm |
| Mold size | Up to 1.5 m, medium and large injection molds |
| Mold trials | In-house on presses up to 1300T (T1 – Tn), samples shipped for approval |
| Scope | DFM review, mold design, machining, trial and optimization, production handover, maintenance |
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