Injection Blow Molding Biopharmaceutical Industry

Injection Blow Molding of Sterilized Polypropylene Centrifuge Bottles for the Biopharmaceutical Industry

BMP Medical (A Biomedical Polymers Company) used a Jomar 85S injection blow molding machine to produce these 500mL centrifuge bottles for use in a biopharmaceutical production application. We also supplied a closure with a platinum-cured O-ring to increase seal integrity. They are then repackaged and double bagged in a unit of measure of four or eight, sent out for sterilization, and then tested for particulate and endotoxin certifications. 

Our skilled and experienced employees manufactured the polypropylene part, which weighs approximately 55.5 grams, to +.005″/-.000″ tolerances.

We produced 65,000 parts, as per the blanket order, with quarterly releases. We then bagged and placed the parts in 16″ x 12″ x 19″ cartons for delivery to our biopharmaceutical industry client in Massachusetts.

See below for detailed part dimensions and contact us directly for more information on our custom blow molding services and what our company can do for you.

Product Name Sterilized 500mL Centrifuge Bottles
Product Description This sterilized centrifuge bottle is used within a Biopharmaceutical production application.
Capabilities Applied/Processes Primary:
Injection Blow Molding
– Platinum Cured Silicone O-Ring
– Outsourced Sterilization is processed in a Class 100 Cleanroom and Packaged under a Class 10 Hood.
Equipment Used to Manufacture Part Jomar 85S Ton Injection Blow Molding Machine
Overall Part Dimensions Height: 4.720″
Diameter: Ø2.373
Volume: 500mL
Tightest Tolerances +.005″/-.000″
Bottle Material Used Polypropylene
In process testing/inspection performed Dimensional Inspection
Estimated Part Weight 55.5 g
Industry for Use Biopharmaceutical
Volume 65,000: Blanket Order w/ Quarterly Releases
Packaging Bagged & Placed in 16″ x 12″ x 19″ Cartons
Standards Met Customer supplied specifications

Creating pathways for successful outcomes


Plastic Products Catalog

BMP Medical is a quality manufacturer of plastic consumables and plastic products for research and medical diagnostic laboratories. Our products are manufactured to the highest quality standards. We offer a wide selection of products sold through the world’s premier laboratory distributors.

Non-Sterile and Sterile Centrifuge Bottles

  • Available with standard caps for low-speed work and sealing caps for high-speed applications
  • Caps have a built-in gripper to facilitate removal from the rotor
  • Extra thick walls for durability-resistant to most chemicals
  • Wide mouth design makes filling and decanting easier

These precision molded centrifuge bottles are available in polycarbonate or polypropylene. For low speed applications the bottles provide excellent value for large volume/large batch centrifugation procedures. For high-speed work, the easy-to-use Noryl® (Noryl® is a registered trademark of General Electric Company) sealing caps with silicone O-rings enable leak-free processing at high centrifugal forces over long durations. Bottles must be filled to 80% of capacity.

Centrifuge bottles may be autoclaved at 121ºC at 15 psi for 20 minutes. Caps should be placed on the bottles without engaging the threads. Bottles are qualified to the rated g-forces using Sorvall® (Sorvall® is a registered trademark of Kendro Laboratory Products) and Fiberlite® (Fiberlite® is a registered trademark of Piramoon Technologies Inc.) high-speed rotors, tested at 20ºC, with bottles filled to 80% of capacity.

Failure to use the correct rotor cushion or adapter will shorten the life of the bottle and may prevent achievement of the maximum rated RCF and/or bottle failure.

Prolonged autoclaving and reuse may cause stress cracks, crazing or bottle discoloration.

centrifuge bottle

Sterile Centrifuge


centrifuge bottle

Centrifuge Bottles

Cytology Funnels Category

BMP Medical Cytology Funnels for the Shandon CytoSpin® Centrifuge BMP Medical Cytology Funnels are the functional equivalent of the Thermo Shandon CytoFunnel®. Fully compatible with the Shandon CytoSpin Centrifuge, BMP Medical Cytology Funnels can be used to deposit a thin layer of cells in a clearly defined area of a microscope slide. The filter card absorbs any excess fluid. Operation is identical to those supplied by Shandon and easy-to-follow instructions are included in each pack. All products sold in case quantities only.

Disposable Cytology Funnel Clips

Disposable Cytology Funnel Clips


metal cytology funnel clip

Metal Cytology
Funnel Clips

Double Cytology Funnels

Double Cytology Funnels

Single Cytology Funnels

Single Cytology Funnels

Hemodrop Blood Dispenser

The Hemodrop is designed to reduce the risk of exposure to bloodborne pathogens in the Hematology laboratory. To prepare a manual differential smear, a drop of blood needs to be dispensed onto a glass slide from the specimen tube. Simply puncture the rubber stopper with the Hemodrop, and then invert and press gently onto the slide. A single drop of blood will be dispensed and the slide is ready. No more removing the stopper and manually putting a drop on the slide to test blood.




Multipurpose Containers

These high-quality non-graduated lab containers are designed for the collection, transport, and storage of specimens and samples. Tight fitting lids prevent leaks and odors. Ideal for storing biologically hazardous samples for terminal autoclaving before disposal. Molded from various materials. The stackable containers are resistant to freezing and boiling.


Translucent Multipurpose

Polypropylene Beakers

Resistant to most commonly used laboratory reagents, including a variety of strong acids, bases, and organic solvents, these high quality polypropylene beakers are the premier choice for scientific laboratory applications. All beakers are transparent for clear content visibility and graduated for easily estimating volumes. Molded-in pouring spouts, and a rolled lip, for a dripless working environment. Autoclavable to 121ºC ( 248ºF).


Polypropylene Beaker

Specimen Collection

For specimen collection and transport, this system provides disposable products for the convenient collection, delivery, and testing of urine specimens. A plastic cup is provided for specimen collection and the pressure sensitive patient identification labels have ample writing space. The lightweight transport rack is small and easy to carry yet provides space for up to 20 tubes with labels and caps. The tubes are made of sturdy polystyrene and are safe for centrifuging. The flared top permits the use of a midget urinometer ensuring a tight cap fit. 


Collection Kit


Commode Specimen
Collection Systems

urine container

24 Hour Urine Containers

urine container

24 Hour Urine Containers with Spout

Tissue & Ultra Tissue Grinders

We offer two lines of tissue grinders for the clinical lab and research lab. The standard product is all plastic and is designed to grind softer tissues such as liver and spleen. The Ultra tissue grinder line has a vitrified tip and is designed for tougher material such as muscle or bone. Both lines are delivered sterile sealed Tyvek® (Tyvek® is a registered trademark of DuPont) package.

tissue grinder

Tissue Grinders

ultra tissue grinder

Ultra Tissue

Urine Sedimentation System

BMP Medical, a manufacturer of diagnostic products, has a full line of urinalysis disposables. We offer the components separately, or in various kit sizes and configurations. The line is built around our 10-chambered Decislide which is made out of optically clear acrylic. It can take 10 individual samples on the same slide eliminating the need for a new slide for each sample.


Urine Sedimentation

Urine Sedimentation