High-Pressure PU FoamInjection Molding System
Precision-engineered polyurethane foam production equipment for automotive seating, insulation panels, and molded components. Delivers consistent cell structure with +0.5% density tolerance.
What Is PU Foam Injection Molding?
Polyurethane (PU) foam injection molding is aversatile manufacturing process that createscellular polymer structures with exceptional mechanical properties and design flexibility.
Material Advantages
PU polyurethane foam offers superior energy absorption,thermal insulation, and chemical resistance compared toconventional foams. The material's tunable density range(25-300 kg/m2) enables applications from soft cushioningto rigid structural components.
Key Applications
- Automotive seating and interior trim
- Building insulation panels and sandwich structures
- Refrigeration appliance thermal barriers
- Industrial packaging and protective molding
Why choose Haifeng for your PU production line?Our high-pressure PU foaming machinesintegrate German metering pump technology with proprietary mixing head design, achieving homogenous cell distribution and reducing raw material waste by up to 15% versus conventional low-pressure systems.
PU Foaming Process
From raw material preparation to finished product, our integrated production line ensuresconsistent quality at every stage of the polyurethane manufacturing process.
Raw Material Conditioning
Polyol and isocyanate components are stored intemperature-controlled tanks (20-25°C) withnitrogen blanketing to prevent moisturecontamination. Viscosity and temperature sensorsensure optimal material properties beforeprocessing.
Precision Metering & Mixing
Axial piston pumps deliver components at ratios adjustable from 1:l to 1:10. The self-cleaning L- shaped mixing head achieves turbulent impingement at 15-25 MPa, ensuring homogenous mixture without solvent flushing between shots.
Curing & Mold Release
Mold temperature control systems maintain uniformheat distribution for consistent cure profiles.Demolding times range from 3-8 minutesdepending on part geometry and foam density.Automated release agent application extends mold
life.
Technical Specifications
Standard configuration for HF-PU3200 series. Custom specifications available upon request for specific polyurethane foam production requirements.
| Parameter | HF-PU1600 | HF-PU3200 | HF-PU5000 |
|---|---|---|---|
| Max Output Rate | 1,600 g/s | 3,200 g/s | 5,000 g/s |
| Mixing Ratio Range | 1:1 – 1:5 | 1:1 – 1:10 | 1:1 – 1:10 |
| Mixing Ratio Accuracy | ±0.5% | ±0.3% | ±0.3% |
| Injection Pressure | 10 – 20 MPa | 15 – 25 MPa | 15 – 25 MPa |
| Tank Capacity (Polyol/ISO) | 300 / 200 L | 500 / 300 L | 800 / 500 L |
| Density Range | 30 – 200 kg/m³ | 25 – 300 kg/m³ | 25 – 400 kg/m³ |
| Power Consumption | 45 kW | 75 kW | 110 kW |
| Dimensions (L×W×H) | 4.2×2.8×2.6 m | 5.5×3.2×3.0 m | 6.8×3.8×3.2 m |
| Machine Weight | 6,500 kg | 9,800 kg | 14,200 kg |
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The Haifeng Advantage
Engineering excellence and manufacturing reliability that global manufacturers depend on for their polyurethane production operations.
Precision Control
Closed-loop flow meters and temperature sensors maintain +0.3% mixing ratio accuracy. Real-time process monitoring with automatic parameter adjustment eliminates batch variation.
Energy Efficiency
Variable frequency drive pumps and optimized heating circuits reduce power consumption by 20-30% versus conventional fixed-speed systems. Heat recovery from exothermic reaction further lowers operating costs.
Automation Ready
OPC-UA connectivity enables seamless integration with MES and ERP systems. Optional robotic handling, automatic mold change, and vision-based quality inspection minimize manual labor.
Global Support
Technical service centers in 12 countries provide 24/7 remote diagnostics and on-site support within 48 hours. Comprehensive spare parts inventory and operator training programs ensure maximum uptime.
Customer Success
Proven results from global polyurethane manufacturing implementations
Frequently Asked Questions
Common inquiries about our polyurethane foam production equipment and services
How much does a complete PU foam production line cost?
What is the typical production capacity per shift?
Do you provide operator training and commissioning support?
What raw material formulations are compatible with your machines?
What is the typical delivery and installation timeline?
What warranty and spare parts support do you offer?
Ready to Upgrade Your PU Production?
Request a detailed technical proposal tailored to your product specifications,output targets, and facility requirements. Our engineers respond within 24 hours.