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Certified Quality Management
ISO 13485 
ISO 9001 
FDA Registered

Tooling Repair & Maintenance of a Disposable Tube Mold

At Marman, we help customers achieve success when other suppliers fail. For this project, a customer in the medical component industry contacted us regarding issues with a mold designed to create tubes used during allergy testing. The tubes are designed to hold media that is used to test patients for allergic reactions. The mold used to make these tubes had hidden damage and was removed from the previous vendor after unsuccessful attempts to resolve the quality issues. Damage to the hot runner system inside of the mold was significantly affecting part quality and rendering molded tubes unusable. Faced with unusable parts and an impending deadline, the customer reached out to our team for assistance.

We were able to repair the tooling and produce the tubes from K-Resin SBC. Having mold design and contract manufacturing capabilities available in house allows us to design, repair, and modify tooling quickly and accurately. Each tube measures 1.772" in height, with an outer diameter of 0.362" and is polished to an SPI A3 finish. After repairing the mold and optimizing the manufacturing process we were able to achieve a far superior cosmetic finish than the customer had been receiving from their previous supplier. The quality of the completed tubes was verified through inspections using functional leak testing methods.

We are ISO 13485 certified and registered with the FDA. Our team has a wealth of experience in navigating the sometimes complex regulatory compliance process. These disposable tubes are a high volume part, with an annual usage of approximately 30 million units. Weekly deliveries are made to our customer in Southern California. For additional details regarding this custom plastic injection molding project, see the table below, or contact us directly.


Plastic Injection Molding Service Details

Project/Product Name

Disposable Tube Mold

Capabilities Applied/Processes

Primary: Mold evaluation and repair, Injection molding, Contract Manufacturing

Secondary: Validation, Packaging, Design Transfer

Equipment Used to Manufacture Part

Molds and Fixtures: EDM, CNC Milling, Surface Grinders
Parts and Assemblies: Injection Molding Mach Package equipment: 1.5 mil poly bag

Overall Part Dimensions

.362" OD x .298" ID x 1.772" Height

Tightest Tolerances

+/-.003 Plastic, +/-.0002 Steel

Material Used

Phillips K-Resin

Material Finish


In Process Testing/Inspection Performed

AQL sampling, Functional Leak Test

Industry for Use

Medical diagnostics and disposables


Up to 30 million / year

Delivery/Turnaround Time

weekly deliveries/ Kanban

Delivery Location

Southern California

Standards Met

ISO 13485, FDA registration

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