Injection Mold Tooling Services
Get precise and outstanding custom injection molds to produce high-quality plastic parts. Tight Tolerance of 0.02 mm.
What is Tooling in Injection Molding?
Injection molding is the most cost-effective way to make a plastic part at scale. The injection molding process involves injecting molten plastic into a mold tool, then ejecting the solidified part. This process quickly repeats hundreds or thousands of times, amortizing the cost of the mold tool and driving down the cost of each unit to a few dollars or less. Since the injection molding process uses the same mold tool for each part, it offers consistent quality across every part. Injection molding also has the highest variety of materials, colors, cosmetics, polishes, and surface textures when compared to CNC machining or even 3D printing.
Zhonghui custom plastic mold service is a service providing on-demand prototype and production molding. We take a customer-first approach which means we find the right injection molding supplier within our manufacturing supplier network to mold the parts the way you need them—without design compromises—at the right price point. We offer expert consultation on each injection mold quote and project managers on every order to move your parts from design to production.
Zhonghui Mold Tooling Services
A, PROTOTYPING-Rapid Tooling
Get easy design feedback and validation through superior quality prototype tooling. Create small batches of plastic molded parts with excellent injection molding prototypes. We excel at manufacturing prototype molds within days to ensure you perform functional tests and validate market interest. We implement affordable aluminum tooling to help you reduce financial risks before full-scale production.
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B, PRODUCTION- Production Tooling
We create high-quality production molds for high-volume plastic parts production. With high-strength, durable tool steel material, our production tooling is suitable for producing hundreds of thousands of parts. We can vary materials and construction methods according to your unique requirements.
Types of Injection Molds
We offer various types of injection mold tooling, depending on your specifications and applications. From prototype mold tooling to production and export molds, Zhonghui is your reliable partner.
A, Single Cavity Mold
Ensure effective low-volume plastic parts production with high-quality single cavity injection molds. These cost-effective mold tooling options give you more control over the plastic manufacturing process.
B, Multi Cavity Mold
Efficiently manufacture multiple plastic molded parts with superior-quality multi-cavity molds. Our multi-cavity injection molds ensure more effective use of cycle time while offering a lower cost of a unit part. With higher productivity, you can get high quantities of parts per cycle.
C, Stack Mold
Increase the output of your injection molding process with innovative stack molds. Zhonghui delivers excellent stack mold tooling to increase your molding efficiency while reducing overall part cost. We can design stack molds with equal numbers or different numbers of cavities in each parting surface. Create multi-component assemblies in one shot!
2K Injection Mold
Economical and efficient custom injection molding solution for molding two different plastic materials. We provide 2K injection mold tooling to allow a seamless combination of soft and hard plastics for one product. Save costs by creating tailor-made products and combining assembly steps into one molding process.
Materials for Injection Mold
Tool Steel
Before injection molding process starts low or high-volume production, a high tolerance CNC machined tooling is needed. Most commonly used materials include tool steel.
Types: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738
Stainless Steel
Injection molds were created from steel and stainless steel which are expensive to manufacture. They are typically only used in large-scale productions.
Types:420, NAK80, S136, 316L, 316, 301, 303, 304
Aluminum
Aluminum molds cost substantially less than traditional steel and carbon steel injection molds. Aluminum molds offer faster cycles and quick turnaround to help test markets.
Types: 6061, 5052, 7075
Injection Molding Capabilities
At Zhonghui, we design and create precise custom injection molds from high-quality materials. Our processes ensure unmatched consistency and repeatability at fast lead times and affordable pricing. Every plastic injection mold we fabricate meets international standards. From one-off projects to small batches and production tooling, we provide durable and reliable mold tools.
Purpose |
Shot Life |
Tolerance |
Cost |
Lead Time |
|
Class 101 Mold |
High-volume Production |
Over 1,000,000 cycles |
± 0.02mm |
$$$$$$ |
15-25 days |
Class 102 Mold |
Medium-volume Production |
Medium-volume Production |
± 0.02mm |
$$$$$ |
12-20 days |
Class 103 Mold |
Low-volume Production |
Under 500000 cycles |
± 0.02mm |
$$$ |
12-20 days |
Class 104 Mold |
Low-volume Production |
Under 100000 cycles |
± 0.02mm |
$$ |
12-20 days |
Class 105 Mold |
Prototype Testing |
Under 500 cycles |
± 0.02mm |
$ |
8-15 days |
Plastic Injection Molding Process
Plastic injection molding is a highly efficient and versatile process used to produce complex and intricate plastic parts.
a. Mold Design & Material:
Precision-designed molds are made using CAD software, typically from steel for durability or aluminum for faster cooling, depending on production needs.
b. Plastic Preparation:
Plastic granules are chosen for specific product properties, dried, and loaded into the machine’s hopper.
c. Melting & Injection:
The plastic is melted and injected into the mold under high pressure to ensure complete filling and detail accuracy.
d. Cooling & Solidification:
The molten plastic cools and solidifies in the mold, shaped by precisely controlled cooling channels to minimize defects.
e. Ejection & Finishing:
The solid part is ejected from the mold and undergoes any necessary trimming, polishing, or painting for final finishing.
f. Quality Inspection:
Each part is inspected for quality, ensuring it meets all specifications for dimensions, appearance, and performance.
Advantages of Prototype Tool
Prototype tooling is essential for efficient product development, offering a cost-effective and swift pathway from design to functional prototype. Here are its key advantages:
a. Speed to Market: Accelerates development and refinement, reducing time to launch.
b. Cost Efficiency: Less expensive than full-scale molds, minimizing initial investment.
c. Design Flexibility: Allows for easy modifications based on testing feedback.
d. Risk Reduction: Identifies production issues early, avoiding costly future corrections.
e. Functional Testing: Facilitates thorough testing to ensure the product meets all requirements.
Why Choose Us
Zhonghui was founded in 2009 by Mr Huang, with over 20 years of combined professional experience in Aluminum/Zinc die casting
and CNC machining in Dong Guan of China. In 2021, we launched injection molding and sheet metal fabrication services.
Zhonghui provides highly trained engineers to support your project. We are ISO 9001: 2015 and IATF16949:2016 Accredited.
How may we help you?
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