SCF Microcellular Injection Molding Machine · Precision Foaming, Stable & Efficient
28:1 Specialized L/D Screw | Precision SCF N2 Injection | 3-Second High-Speed Injection
| 50% Clamp Force Reduction
SCF Microcellular Injection Molding Machine
The DKM SCF microcellular injection molding machine is a high-performance system purpose-built for the supercritical fluid foaming process. Every detail—from screw design to the control system—is optimized to achieve a uniform, stable microcellular structure (cell diameter 10–200μm). Whether for lightweight automotive components, functional parts for home appliances, or precision electronic accessories, the SCF series helps you reduce costs and increase efficiency with lower clamping force, shorter cycle times, and reduced injection pressure.
Technologies of SCF Microcellular Machine
1. Specialized Screw & Barrel Design
Length-to-Diameter Ratio 28:1
Ensures thorough mixing of supercritical nitrogen with the melt to form a uniform single-phase melt, laying the foundation for uniform nucleation.
Center Check Ring
Creates a sealed mixing section on the screw, preventing gas escape and enhancing mixing efficiency.
Front Non-Return Valve
Prevents melt backflow during injection and holding phases, maintaining injection pressure and ensuring all gas-laden melt is pushed into the mold.
2. High-Precision Supercritical Fluid Injection System
Closed-Loop Pressure Control
Maintains melt pressure above 20 MPa, ensuring complete dissolution of nitrogen.
Dynamic Dosing Regulation
Real-time monitoring of nitrogen injection volume to accommodate different materials and part requirements.
N₂ / CO₂ Dual Compatibility
Supports both nitrogen and carbon dioxide as foaming agents for flexible material selection.
3.High-Speed Injection & Nozzle Coordination
Injection Completed Within 3 Seconds
High-speed injection after plasticizing prevents nitrogen loss and ensures foaming quality.
40-50% Reduction in Injection Pressure
For example, injection pressure drops from 136 MPa to below 110 MPa compared to conventional injection molding.
Shut-Off Nozzle Matched with Injection Timing
Creates high pressure before opening the nozzle/needle valve to prevent premature foaming.
Optimized Nozzle Diameter
Avoids insufficient pressure drop, ensuring a rapid pressure drop at the moment of bubble nucleation.
4. Intelligent Clamping & Mold Opening Control
Precise Clamping Force Setting
Programmed control prevents excessive clamping that could inhibit foaming; allows a slight mold opening (1–2 seconds after injection) to promote bubble growth.
Adjustable Mold Opening Stroke
Optimizes opening distance based on part thickness and expansion ratio to ensure sufficient cell growth.
Low-Pressure Cavity Protection
Reduces cavity pressure by over 50%, extending mold life.
Optional Configurations
- RHCM Rapid Heating & Cooling System: Improves surface quality and eliminates swirl marks.
- Automated Take-Out Robot & Conveying System: Enables unmanned production.
- Nitrogen Generation & Recovery Unit: Lowers operating costs.
Technical Advantages of SCF Microcellular Machine
5–30% (structural parts achieve significant benefits starting at 10%)
Weight Reduction
15–40% (holding phase eliminated)
Cycle Time Reduction
30–50% (e.g., instrument panel carrier from 2,500T to 1,200T)
Clamping Force Reduction
40–50% (from 136 MPa to below 110 MPa)
Injection Pressure Reduction
Up to 60%
Warpage Improvement
Tolerances controlled within ±30 μm
Dimensional Stability
SCF Microcellular Machine Model Specifications
Call [your phone number] or email [your email address] to receive the complete SCF series technical manual and a quotation.
