In the precision tooling industry, the Mold Frame plays a foundational role in supporting and aligning every component within a mold system. Whether it’s for injection molding, die casting, or compression molding, a high-quality Mold Frame ensures stable performance, precision alignment, and extended mold life. At Hongxin, we specialize in manufacturing durable and precision-engineered Mold Frames to meet the evolving needs of global industries.
What Is a Mold Frame?
A Mold Frame (also known as a mold base) is the structural skeleton of a mold tool. It consists of multiple steel plates and support components that house and align the functional elements of the mold such as the cavity, core, inserts, sliders, and cooling channels. The Mold Frame not only holds these parts in position but also absorbs the clamping and injection forces during production cycles.
Precision in the Mold Frame directly impacts the molding accuracy, product quality, cycle time, and longevity of the tool. A poor-quality mold base can cause misalignment, flash, excessive wear, or even tooling failure.
The Structure of a Mold Frame
A standard Mold Frame generally includes:
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Top Clamping Plate
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Cavity Plate
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Core Plate
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Support Plate
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Bottom Clamping Plate
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Ejector Housing and Pins
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Guide Pins and Bushings
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Cooling Channels
Each of these components must be machined and assembled with high precision to ensure consistent product quality and mold performance.
Types of Mold Frames at Hongxin
At Hongxin, we manufacture both standard and custom Mold Frames for a wide variety of applications:
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Injection Mold Frames for plastic parts production
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Die-Casting Mold Bases for metal components
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Two-Plate and Three-Plate Mold Frames for complex part ejection
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Hot Runner Compatible Frames for high-efficiency molds
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Customized Mold Frames tailored to unique tooling or part needs
We support industries ranging from automotive, medical, cosmetics, electronics, to consumer products.
Materials and Machining Precision
Hongxin uses only premium-grade mold steel such as P20, S50C, 718H, and pre-hardened steel depending on application requirements. Our CNC machining, grinding, and EDM capabilities allow us to produce mold plates and components with tolerances up to ±0.005mm.
Our experienced engineers also ensure the correct pre-loads and alignments during the frame assembly process, minimizing parting line misalignments and ensuring trouble-free operation under high-pressure production conditions.
Why Is the Mold Frame So Critical?
1. Ensures Mold Stability and Rigidity
The Mold Frame provides the mechanical structure needed to support all internal mold functions under high clamping and injection forces.
2. Supports Precision Alignment
With precision guide pins and bushes, the Mold Frame ensures that every cycle returns the mold halves to perfect alignment—reducing flash and improving surface finish.
3. Promotes Efficient Cooling
Built-in waterline channels in the frame help maintain consistent mold temperatures, which improves product quality and reduces cycle time.
4. Extends Mold Life
A properly designed and heat-treated Mold Frame resists deformation, warping, and cracking under repeated load, maximizing the mold’s service life.
5. Facilitates Maintenance and Modularity
Hongxin’s Mold Frames are engineered for easy disassembly and reassembly, making regular maintenance and part replacement fast and cost-effective.
Applications of Mold Frames
Hongxin’s precision Mold Frames are trusted across various sectors:
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Automotive Molding: Dashboard panels, connectors, and structural components
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Medical Devices: Syringes, housings, and surgical instrument parts
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Consumer Goods: Pen molds, bottle caps, and packaging components
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Electronics: Connectors, housings, and micro parts
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Cosmetic Packaging: High-finish plastic containers and caps
Why Choose Hongxin for Mold Frames?
With over 15 years of experience in mold component manufacturing, Hongxin is committed to delivering Mold Frames that offer the perfect combination of strength, precision, and performance.
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Advanced Equipment: We utilize precision grinders, CNC machining centers, and automated EDM systems.
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Experienced Workforce: Our team of engineers understands mold function and assembly at a system level.
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Tailored Designs: Whether you need standard frames or non-standard sizes for unique molds, we provide complete customization.
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Strict Quality Control: Each frame undergoes inspection for flatness, parallelism, hardness, and alignment to ensure top performance.
Future-Proof Your Tooling with Premium Mold Frames
As product designs become more complex and production speed increases, the need for reliable and high-performance Mold Frames is greater than ever. Whether you’re developing parts for electric vehicles, medical wearables, or luxury packaging, the foundation of your mold must be precise and durable.
Hongxin continues to invest in technology, skilled craftsmanship, and global service to deliver Mold Frames that empower your innovation. If you're looking for a trusted mold base manufacturer, we invite you to explore our offerings at www.hongxin-mould.com or contact our team for a free consultation.
