ISO Class 8 Clean Room

Quality Control

Low & High Volume Manufacturing

Competitive Price

Reliability and Stability

 

Silicone rubber injection molding has more than a half-century history since the late 1970s. There are two molding ways of it: Liquid Silicone Rubber Injection Molding (LSR) and Solid Silicone Rubber Molding. There are thousands of applications of silicone rubber mould liquid in various industries like medical, automotive, electronics, etc.

 

As the one of professional silicone injection molding companies and liquid mold maker, Packson has been working with liquid rubber molding compound for many years. Especially for liquid silicone rubber injection molding, we have become OEMs supplier of BD medical for producing medical rubber cathethers. We have the capability to offer liquid silicone rubber injection molding service that start from prototyping to serial production manufacturing.

 

At Packson, we have equipped with more than 9 liquid silicone rubber injection molding machines with ISO class 8 cleanroom that meets the need of medical contract manufacturing. We are able to provide quick, high-quality service and our professional engineering team who has rich experience in liquid silicone rubber injection molding, to help you in the liquid silicone rubber manufacturing process. Contact Packson today if you need liquid silicone rubber injection molding service.

 

Silicone Injection Molding Details and Options

 

 

Custom Silicone Rubber Injection Molding Service For Your Business

Liquid silicone rubber molding parts have the feature of durability with good tensile strength and are used to high volume, tight tolerance. Therefore it is widely used in various industries especially for medical parts.

 

Here are the advantages of liquid silicone rubber:

• Excellent insulating properties, good for tight tolerance/precision components
• Good tensile strength  with high/low-temperature extremes
• Good resistance for water, oxidation also some chemical solutions like acids.

 

Silicone Rubber Molding Process

 

The silicone dousing unit starts in two parts

composed A and composed B pumps one Part A silicone and one Part B silicone via separate hoses to the static mixer. Cylinder A contains the basic material. while cylinder B contains a catalyst. In addition,  color is pumped to the static mixer via another hose. The mixed components are then fed into the throat of the injection molding barrel by way of a shut-off valve. This is the whole silicone injection molding process.

 

Sealing against the mold

 

Once the silicone material is inside the barrel, a shot of the cool mixed silicone advances to the mold as the nozzle seals firmly against the silicone rubber liquid mold.

 

Injection

 

The nozzle shut-off valve opens and a measured shot of cool liquid silicone is injected into a hot (275F to 390F) clamped silicone rubber liquid mold.

 

Barrel retracts from the mold

 

The nozzle shut-off valve opens and the barrel retracts from the silicone rubber liquid mold, while the screw begins to build another measured shot of cold liquid silicone.

 

Closes and repeats the procedure

 

After the cycle is complete, the mold opens and the piece and flashing can be taken off automatically or by an individual worker.  After that, the mold closes and repeats the procedure.

 

Post-molding process

 

After removing the article from the mold, the lsr silicone molding may include demisting, post-curation, inspection, and packing.

 

Silicone Rubber injection Molding Application

Molding Parts

-Silicone rubber injection molding can be qpplied in molding parts. Moulded part is a good way for low quantity production from dozen to hundred of the part even millions of parts. The molding part is better than the part machined by CNC or 3D printing with the same material. The right choice for resin used in the molding part allows for a wide range of properties. Mold is essential medial for the molding part. So molds machined by CNC and Wire cut EDM with high precision and tolerance are enable make thousands of parts.

Certifications

Rapid Prototye

 

Packson - Your Injection Moulding Manufacturer

Your Expert in Injection Molding

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ISO Class 8 Clean Room

Equipped with clean room and certificated with ISO 13485 and ISO 9001, we are able to hanlde your medical OEMS production.

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Quality Control

We will check color, appearnce and tolerance by qulity control at every step during manufacturing process.

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Low & High Volume Manufacturing

Except long run production, we also can provide better solution for your low-volume production by prototyping tooling.

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Competitive Price

Our good investments in euipments and QC system help us to get greater efficiency and higher quality which decrease reject ratio. All these make us send parts to you on time with competitive cost.

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Reliability and Stability

Our 24 hours|3 shifts production system help your parts get into market quickly and steadily.

 

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