Plastic Molding for Medical Device Caps

Clear PP caps for medical devices

Most medical device caps are molded in clear PP, which is light, chemically resistant and suitable for sterilisation methods common in disposables. Customers often need the same cap design in several sizes that share most features. Building a separate mold for each size would multiply tooling cost.

One mold, several sizes: exchangeable inserts

Our solution for this medical device manufacturer was a mold with exchangeable cavity and core inserts:

• A common mold base, hot runner and ejection system.
• Size-specific inserts that can be changed while the mold stays in the press, saving setup time.
• Two cavities in AISI 420 stainless steel, which resists corrosion and keeps a polished surface for clear parts.
• YUDO hot runner for clean gate marks and no runner scrap, important for clear parts and high volumes.
• HASCO standard components.

Why this is the economical choice

Exchangeable inserts cost a fraction of separate molds, and changing an insert set takes far less time than changing a complete mold. For families of similar medical parts it is the most economical solution we know.

We understand that medical customers need consistent parts and documentation, so dimensions are reported for each insert set at T1.

How a project like this works

• Tell us what you need – the mold only, molded parts, or both, and your estimated annual volume.
• Send drawings – STEP, IGES, STL, DWG or PDF, or a sample. We sign off moldability in a DFM review.
• Quotation – tooling price, part price and a schedule, with steel, cavities and runner proposed.
• Mold design approval – you approve the 3D mold design before steel is cut.
• T1 samples + FAI report – production or mold shipment starts after your approval.

Shipping molds and parts

• Molds are cleaned, rust-protected, marked and checked against a shipment checklist: cooling circuits, sprue, locating ring, ejection and support pillars.
• Molds ship with drawings, a spare-parts list and the T1 process sheet.
• Parts are packed to your packing instruction and inspected before shipment.
• We ship to customers in Europe, the USA and Asia.

After-sales

Our after-sales team supports mold maintenance and modifications remotely and can supply spare inserts. Contact [email protected].