Connecteur en plastique surmoulé en LSR de qualité médicale pour dispositifs médicaux

Medical Grade LSR Overmolded Plastic Connector is a precision-molded medical component made by combining rigid medical-grade plastic with soft liquid silicone rubber through an overmolding process. The transparent plastic section provides structural support, positioning, and connection function, while the LSR silicone section offers reliable sealing, flexibility, anti-leakage performance, and comfortable assembly.

This type of connector is widely used in medical devices, respiratory equipment, nebulizers, diagnostic instruments, fluid transfer systems, and other medical assemblies that require clean, stable, and precise sealing performance.

The product can be customized according to the customer’s drawing, sample, material requirement, hardness, dimension, color, and application environment.

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Principales caractéristiques

Medical-Grade Material Selection

The connector can be produced using medical-grade LSR combined with transparent plastic materials such as PC, PP, PCTG, or other engineering plastics depending on the application requirements.

Integrated Overmolding Structure

LSR silicone is directly molded onto the plastic insert, creating a stable integrated structure. This helps reduce assembly steps, improve sealing reliability, and enhance product consistency.

Excellentes performances d'étanchéité

The soft silicone section provides a flexible sealing interface, helping prevent air leakage, liquid leakage, vibration, and loosening during use.

Transparent Plastic Body

The transparent plastic part allows visual inspection and supports applications where clarity, positioning, or flow observation may be required.

Suitable for Medical Device Assembly

Designed for small precision medical components, this product is suitable for medical instruments that require cleanliness, dimensional accuracy, and stable functional performance.

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Caractéristiques techniques du produit

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Applications typiques

This LSR overmolded plastic connector can be used in:

Medical device connectors
Respiratory equipment accessories
Nebulizer components
Oxygen therapy device parts
Fluid transfer connectors
Diagnostic instrument components
Disposable or reusable medical assemblies
Sealing adapters for medical instruments
Small precision plastic-silicone hybrid parts

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Processus de fabrication

The product is manufactured through a two-step molding process.

First, the rigid transparent plastic insert is produced by precision injection molding. Then, the plastic insert is placed into an LSR mold, where liquid silicone rubber is injected and vulcanized around the plastic part. This creates a strong and accurate plastic-silicone integrated component.

Compared with traditional manual assembly, LSR overmolding improves product consistency, sealing stability, and production efficiency. It is especially suitable for medical components with complex shapes, tight tolerances, and strict sealing requirements.

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Options de personnalisation

We support custom development based on customer drawings, 3D files, or physical samples.

Les options de personnalisation disponibles sont les suivantes :

Choix des matériaux
Dureté du silicone
Plastic type
Correspondance des couleurs
Optimisation de la structure
Sealing design
Finition de surface
Tolérance dimensionnelle
Développement des moisissures
Production OEM / ODM

For medical-related applications, customers are encouraged to provide the actual working environment, sterilization method, assembly method, and performance requirements so that the material and structure can be selected more accurately.

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Why Choose LSR Overmolding for Medical Connectors?

LSR overmolding is an effective solution for medical connectors that require both rigid support and soft sealing performance. The rigid plastic part ensures strength and accurate assembly, while the silicone part improves sealing, flexibility, and user safety.

This structure can reduce the need for separate sealing rings, adhesives, or manual assembly. It also helps improve product reliability, cleanliness, and production repeatability.

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Contrôle qualité

Each custom LSR overmolded connector can be inspected according to customer requirements, including appearance, dimensions, bonding condition, sealing performance, material consistency, and assembly fit.

For medical device components, we can also support production documentation and quality control procedures according to the customer’s project requirements.

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FAQ

1. Can this product be customized according to our sample?

Yes. We can develop the product based on your physical sample, 2D drawing, 3D file, or functional requirements.

2. What plastic materials can be used with medical-grade LSR?

Common options include PC, PP, PCTG, PSU, and other engineering plastics. The final material should be selected according to the application, sterilization method, temperature, transparency, and mechanical requirements.

3. Is this product suitable for medical equipment?

Yes, this type of LSR overmolded plastic connector is designed for medical device applications. However, the final material grade, test standard, and certification requirements should be confirmed according to the specific end-use application.