| Parameter | Specification |
|---|---|
| Standard | Q/PES001-2026 |
| Available Types | EQ – In-Mold Embedded Elliptical / FQ – In-Mold Embedded Round |
| Nominal Thread Sizes | M4 / M5 / M6 / M8 / M10 / M12 |
| Installation Method | In-Mold Embedded |
| Inner Installation Diameter S | 0.85–2.25 mm |
| Outer Diameter d | 5.00–18.07 mm |
| Length L | According to Standard / Drawing |
| Length Tolerance | +0 / −0.15 to −0.20 mm |
| Material | Carbon Steel / Stainless Steel / Other Materials by Agreement |
| Surface Treatment | Zinc-Nickel Coating / Other Specified Treatments |
| Customization | Custom Dimensions, Profile, Material & Surface Treatment |
| Application | Plastic Components with Bolted Joints |
Mold Integration & Design Advantages
- Integrated Molding Process
The limiter is positioned within the mold before plastic injection, allowing it to become securely embedded into the finished component.
- Reduced Assembly Operations
By combining the limiter installation with the molding process, manufacturers can simplify production procedures and improve overall efficiency.
- Enhanced Structural Reliability
The embedded design helps distribute clamping loads more effectively, reducing stress concentration and protecting plastic components from deformation.
- Optimized for Mass Production
Suitable for high-volume manufacturing environments where consistent quality, repeatable processing, and efficient production are required.
Application Requirements & Engineering Support
- Design Evaluation
We review application requirements, including plastic component structure, bolt specifications, and assembly conditions, to recommend suitable solutions.
- Material Compatibility Support
Different application environments require different material properties. We help customers select appropriate options based on strength, durability, and operating conditions.
- Prototype Development Assistance
Support is available during the product development stage to verify design suitability before moving into full-scale production.
- Project-Based Manufacturing Support
From initial requirements to mass production, we provide technical communication, production coordination, and quality control support throughout the project.
Molded-in Compression Limiter Manufacturer
As a professional compression limiter manufacturer, Anhui Pins Metal Products Co., Ltd. provides molded-in metal limiters for plastic assemblies, with production covering dimensional forming, heat treatment, surface treatment, inspection, and OEM manufacturing.
- In-House Production: Control key manufacturing processes to maintain dimensional and structural consistency.
- Engineering Support: Work from customer drawings, samples, and molding requirements to develop suitable limiter dimensions and retention profiles.
- Quality Control: Inspect critical dimensions, material condition, hardness, surface treatment, and finished-product conformity.
- OEM Supply: Support prototype evaluation and repeat mass production for automotive, electrical, industrial, and other plastic-component applications.
Dimensional Fit & Bolt Compatibility
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Bolt Size Matching
The limiter's internal bore is selected to match the specified bolt size, providing sufficient clearance for bolt insertion while preventing excessive radial movement inside the limiter.
Limiter Length & Clamp Stack
The limiter length should correspond to the designed plastic stack and bolt clamping condition. Correct length prevents the plastic housing from being compressed directly after the bolt is tightened.
Outer Diameter & Boss Design
The outer diameter is matched to the surrounding plastic boss and mold geometry. Adequate wall thickness around the limiter should be maintained to support molding and prevent cracking during assembly.
Mold Positioning Accuracy
The limiter must remain correctly positioned during injection molding so that the finished bore, bolt path, and clamping surfaces remain aligned. Proper positioning is particularly important for automated assembly and multi-hole plastic components.
Custom Manufacturing & Engineering Support
- Drawing-Based Development
We manufacture molded-in compression limiters from customer drawings, samples, or defined dimensional requirements, including ID, OD, length, and external retention geometry.
- External Retention Profile
The outside profile can be developed according to the required press-out resistance after molding, with features such as grooves, points, or other retention structures considered according to the plastic material and molding process.
- Mold & Material Compatibility
Limiter dimensions and external geometry can be evaluated against the plastic material, boss design, mold structure, and injection process to support reliable embedding.
- Production & Project Support
We support prototype evaluation, dimensional verification, process adjustments, and mass production after the specification is approved, helping maintain consistency between development samples and production batches.
FAQ
What is the difference between molded-in and press-in compression limiters?
Molded-in compression limiters are installed during the plastic molding process, becoming an integrated part of the component. Press-in types are installed after molding and are typically used when post-production assembly is preferred.
At what stage should a compression limiter be considered?
They are usually considered during the early design stage of a plastic component, especially when the assembly requires high clamping reliability, reduced deformation, or optimized production efficiency.
Can molded-in compression limiters be used with different plastic materials?
Yes. The suitable design depends on the plastic material, molding process, operating conditions, and required mechanical performance. Proper selection helps ensure reliable integration.
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