Manual Crank Hot-cured PMMA Complete Denture Injection
This manual injection system fabricates high-density, hot-cured PMMA complete dentures in the dental lab. The closed-system design keeps the pre-mixed acrylic dough sealed inside a plastic bag to eliminate mess and monomer fumes. It relies entirely on mechanical leverage, giving you high packing pressure without needing electricity or air compressors.
Operation Sequence
- Mix & Seal: Mix the PMMA acrylic dough and seal it completely inside the plastic bag.
- Load Cylinder: Insert the sealed bag into the vertical injection cylinder.
- Purge Air: Press the ball-topped push rod down with light hand force to seat the dough and remove trapped air.
- Align Flask: Position the cylinder connection directly over the locked flask entry port inside the press frame.
- Inject Dough: Crank the manual handwheel down to force the dough out of the bag and completely pack the mold.
Equipment Accessories
| Accessory Component | Description & Quantity |
| Central Screw Press Frame | Heavy-duty steel arch with a handwheel to clamp flasks and drive injection (1 Unit). |
| Precision Injection Flasks | Metal molds with quick-lock star knobs to hold the denture setup (2 Units). |
| Vertical Injection Cylinder | Stainless steel sleeve that holds the dough bag and locks to the flask (1 Unit). |
| Ball-Topped Push Rod Tool | Manual plunger used to seat the material and purge initial air pockets (1 Unit). |
| Luer-Lock Connecting Kit | High-pressure feeding tubes and adapters for a leak-proof injection path (1 Set). |
| Sealed Injection Bags | Specialized rectangle plastic bags used to cleanly seal and contain the PMMA acrylic dough mixture during the pressing process (50 Pcs). |
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