3ml Sterile RTU Glass Cartridge Assembly
Ready-to-use glass cartridge assemblies for injectable pharmaceutical
preparations - plunger and seal components pre-installed, packed in nest/tub format.
3ml capacity
|
fully assembled
|
nest / tub format
|
| RTU glass cartridge | ready to use glass cartridge assembly | 3ml glass cartridge | sterile cartridge assembly | pen injector cartridge |
A cartridge assembly for a pen injector system has more points where sterility and fit have to come together than a standard vial - the rear plunger, the glass barrel, and the front seal all have to be matched and installed correctly before the cartridge is ready to fill.
Our 3ml sterile RTU glass cartridge assemblies arrive with all of that already done: plunger/stopper installed at the rear, closure/seal components installed at the front, sterilized, and nested in tubs ready for direct line loading.
| rear plunger stopper cartridge |
| front seal cartridge |
| cartridge plunger assembly |
| glass cartridge with septum seal |
| pre-assembled cartridge |
What's Included in the Assembly
| REAR PLUNGER/ STOPPE |
3ml GLASS CARTRIDGE BODY |
FRONT CLOSURE/ SEAL |
Rear Plunger / Stopper
Pre-installed at the rear of the cartridge, formulated for reliable movement and seal integrity during dosing.
Glass Cartridge Body
3ml precision-formed glass barrel, dimensionally consistent for compatibility with standard pen injector devices.
Front Closure / Seal
Pre-installed septum and seal components at the front of the cartridge, ready for needle penetration at the point of use.
| nested tub cartridge | nest tub format cartridge | sterile packed cartridge assembly | ready to fill cartridge |
Product Specifications
| Capacity | 3ml |
|---|---|
| Condition | Sterile, ready-to-use (RTU) |
| Assembly | Rear plunger/stopper and front closure/seal components included |
| Packaging Format | Nest/tub format |
| Intended Use | Injectable pharmaceutical preparations, pen injector systems |
Why a Fully Assembled RTU Cartridge Matters
Assembling a cartridge from separate glass, plunger, and seal components on-site adds handling steps, and every extra handling step is another point where contamination or misalignment can occur. By pre-assembling and sterilizing the full cartridge - glass, plunger, and seal together - before it reaches your facility, this format lets your fill-finish line go directly to product filling without an in-house assembly or component-matching step.
Fully assembled with rear plunger and front seal already installed
Sterility validated on the complete assembly, not just individual components
Nest/tub packaging compatible with automated cartridge filling lines
Consistent 3ml fill capacity for pen injector and prefilled delivery systems
Reduces on-site assembly, component sourcing, and matching steps
Applications
Insulin pen injector systems
GLP-1 & biologic pen delivery
Prefilled cartridge-based injectors
Contract fill-finish operations
Aseptic isolator filling lines
| insulin pen cartridge | GLP-1 pen delivery cartridge | prefilled cartridge injector | biologic pen injector cartridge | fill finish cartridge assembly |
Related Products
Get Your RTU Cartridge Assembly Quote
Tell us your fill volume, plunger/stopper material, and nest/tub
configuration, and our team will confirm specifications, pricing, and lead time.
| RTU cartridge manufacturer | sterile cartridge supplier | glass cartridge assembly factory | OEM RTU cartridge wholesale | pharma cartridge China supplier |
As one of the leading rtu glass cartridges manufacturers and suppliers in China, we warmly welcome you to wholesale cheap rtu glass cartridges for sale here from our factory. All customized products are with high quality and low price.