Your Professional Injection Mold Supplier
Sanpin Mould is a tooling and injection molding company based in Shenzhen, China, founded in 2007. We provide end-to-end services from mold design and manufacturing to injection molding production. Our solutions support industries including automotive, medical, home appliances, electronics, and industrial components.
All-in-One Production
We handle mold design, tooling, and injection molding in-house, helping reduce delays and keep quality consistent.
Reliable Quality Control
We follow ISO 9001, ISO 13485, and IATF 16949 standards, with clear documentation and controlled processes.
Experience You Can Rely On
With nearly two decades in tooling and molding, we understand common production challenges and how to avoid them.
After-Sales Support
We provide ongoing technical support, mold maintenance, and quick response to ensure stable long-term production.
Specification
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Maximum mold size: |
800 × 600 × 500mm |
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Shot weights: |
0.1g to 100g per station |
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Clamping force: |
30 to 300 tons |
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Temperature zones: |
Up to 24 per mold |
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Cycle time: |
15-45 seconds optimized |
The injection molds produced by our company mainly include the following types:
Three-Color Mold
These precision tooling solutions enable the creation of complex parts that combine aesthetic appeal, ergonomic performance, and structural integrity-eliminating secondary assembly, painting, or bonding processes.
Two-Color Mold
Two-color molds (or two-shot molds) are advanced injection molding tools used to create a single plastic part using two different colors, materials, or textures in one production cycle.
Advantages of Injection Mold
Low Cost
When selecting a mold for use in different industries, it is crucial to make an informed choice. To ensure better cost control, mold production material should be carefully considered. So that the attention to the cost of the injection molding processing mold can be managed effectively.
High Quality
Injection molding processing molds are widely used due to their high quality. The process is simple and does not involve any complicated operation, which ensures that there is no internal stress and guarantees the quality and sturdiness of the product during use, and makes the production structure of the product much more stable, ensuring the safety of use.
More Flexible
Injection molding processing molds are versatile in their overall structure design, making them suitable for various industries with differing structural needs. With just one set of molds, it's possible to alter both the material type and product color.
Environmental Friendly
Sustainability has always been a concern of society, so when a product is developed, it is considered in terms of environmental protection. Injection molding is not only efficient but also environmentally friendly, as the parts used for testing or discarded can be recycled.
Automotive Industry: It is utilized for the manufacturing of durable, precision parts, including dashboards, lighting components, and under-the-hood applications.
Medical Sector: Employed in producing medical-grade components that require strict compliance with health and safety regulations.
Consumer: Goods are essential for creating various household items, toys, and other personal-use products that demand quality and reliability.
Packaging: Used in fabricating packaging solutions where strength, clarity, and flexibility are paramount.
Materials for Injection Mold
Tool Steel
Before starting the injection molding process in small or large batches, a CNC machined tool with high tolerances is necessary. Tool steel is the most commonly used material in such cases.
Stainless Steel
Steel and stainless steel are the primary materials used to create injection molds, but their manufacturing costs are quite high. As a result, these molds are generally reserved for large-scale productions.
Aluminum
Aluminum molds are a cost-effective alternative to traditional steel and carbon steel injection molds. They not only cost less but also provide faster cycles and quicker turnaround times, which is especially useful for testing markets.
The Injection Mold Making Process
Step 1: Concept and Design
The mold-making process begins with a detailed concept and design phase. This involves creating a 3D model of the part to be produced and designing the mold based on this model. Considerations include the part's geometry, material, and the injection molding machine's capabilities.
Step 2: Material Selection
Choosing the right material for the mold is critical. Common materials include hardened steel for high-volume production and aluminum for prototyping or low-volume production. The material must be durable and capable of withstanding the repeated cycles of the injection molding process.
Step 3: CNC Machining
Once the design is finalized, CNC (Computer Numerical Control) machining is used to cut the mold components with high precision. This step involves milling, drilling, and turning to create the mold's cavities and cores.
Step 4: Heat Treatment
Heat treatment is often applied to steel molds to enhance their hardness and durability. This process involves heating the mold components to a high temperature and then cooling them rapidly to achieve the desired mechanical properties.
Step 5: EDM (Electrical Discharge Machining)
For complex geometries and fine details, EDM is used. This process uses electrical discharges to erode material from the mold, allowing for precise shaping and finishing.
Step 6: Polishing and Surface Treatment
Polishing and surface treatments are essential to achieve the desired surface finish on the molded parts. Techniques like grinding, honing, and coating are used to ensure the mold surfaces are smooth and free from defects.
Step 7: Assembly and Testing
The final step involves assembling the mold components and testing the mold to ensure it meets the required specifications. Trial runs are conducted to identify and rectify any issues before full-scale production begins.
Ordering Process
Packaging and Shipping
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Packaging |
Carton or wooden carton |
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Shipping |
Shipping by sea, by air, by express are acceptable. According to your requirements. |
Our Service
Pre-Sales
Providing clients with professional technical consultation, mold design, sample production, and quotation suggestions.
Sales
Tracking production progress throughout the mold manufacturing and injection molding process, strictly implementing quality control, and promptly communicating to resolve production issues.
After-Sales
Providing technical support, mold maintenance and optimization services, responding quickly to customer feedback, and ensuring customer satisfaction.
European Service Points
After-sales service points have been established in Europe, allowing customers to conveniently obtain support nearby.
Our Factory
Shenzhen Sanpin Mould Co., Ltd., established in 2007 and located in Bao'an District, Shenzhen, covers an area of over 24,000 square meters and is a national high-tech enterprise.
Our Certificates
ISO 9001:2015,ISO 13485:2016,IATF 16949
As one of the leading injection mold manufacturers and suppliers in China, we're featured by quality products and good price. Welcome to buy customized injection mold made in China here from our factory. If you have any enquiry about quotation, please feel free to email us.