High-Pressure PU Foaming Machine | Refrigerators
High‑pressure rigid foam system for refrigerator, freezer & cold cabinet insulation, with precise metering (≤±0.3%), solvent‑free air purge cleaning, and 10‑18 MPa mixing pressure.
Pouring Rate
50～1200 g/s
Metering Accuracy
≤ ±0.3% full range
Mix Ratio (Polyether:Isocyanate)
100 : 100~130
Mixing Pressure
10～18 MPa
Product Overview
The HF‑HPM‑1A1B‑Refrigerator is a high‑pressure PU foaming system for refrigerator/freezer insulation, delivering precise ratio control, uniform density, and solvent‑free cleaning.
The HF-HPM-1A1B-Refrigerator is a high-pressure PU foaming machine for insulation production in refrigerators, freezers, refrigerated cabinets, and commercial cold cabinets. It is optimized for high-density rigid foam pouring of boxes and doors, meeting requirements for thermal insulation, low thermal conductivity, uniform foaming without voids, and integration with automated appliance lines. The system features independent temperature-controlled tanks (100L/150L) with circulation stirring, a high-speed mixing head (8,000–14,000 r/min) operating at 10–18 MPa, and PLC control with multi-formula storage. Dynamic full-range metering (≤±0.3%) ensures accurate ratio control (100:100–130), minimizing waste and ensuring consistent density across every pour. The solvent-free automatic air purge cleaning suits dust-free appliance workshops. With stable, standardized production, it meets the demanding quality and throughput of the appliance industry.
Production Workflow
Material Preparation
Load polyether and isocyanate into temperature‑controlled tanks (100L or 150L), set to 20‑45°C with circulation stirring.
Recipe Selection & Ratio Setting
Choose stored formula on PLC touch screen; set A:B ratio (100:100‑130) and pouring rate (50‑1200 g/s) per part type.
High‑Pressure Precision Pouring
Inject PU foam into refrigerator box or door mold at 10‑18 MPa and 8000‑14000 r/min, ensuring complete fill with no voids.
Curing & Air Purge Cleaning
Allow foam to cure in mold; trigger automatic air purge cleaning to prepare mixing head for next cycle without solvents.
Technical Specifications
Specifications are based on standard configurations at ambient conditions. Custom tank sizes and pouring rates are available upon request.
| Technical Parameter | HF-HPM-1A1B-Refrigerator |
|---|---|
| Pouring Rate | 50～1200 g/s |
| Raw Material Ratio | Polyether:Isocyanate=100:100~130 |
| Tank Capacity | 100 / 150 L |
| Mixing Head Speed | 8000～14000 r/min |
| Dynamic Metering Accuracy | ≤±0.3% (Full range) |
| Tank Configuration | 1A1B two-component independent temperature control + circulation stirring |
| Material Temperature Control | 20～45℃ |
| Mixing Pressure | 10～18 MPa |
| Vacuum Defoaming | None |
| Cleaning System | Automatic air purge cleaning (Solvent-free & Eco-friendly) |
| Power | 5.5～7.5 kW |
| Control System | PLC + Touch Screen + Multi-formula Storage |
| Applicable System | Polyurethane Rigid Foam Insulation System |
| Warranty | 1 year |
| Certifications | Confirm applicable documents for the quoted configuration |
Key Advantages
Six engineering benefits that ensure void‑free, uniform rigid foam insulation for refrigerators, freezers, and cold cabinets in high‑volume appliance production.
High‑Pressure Precision Mixing
Delivers uniform rigid foam density with no voids, ensuring stable thermal insulation performance and consistent quality across all production batches.
Dynamic Full‑Range High‑Precision Metering
Real‑time monitoring and compensation keep ratio accuracy within ≤±0.3% full range, minimizing raw material loss and reducing production costs.
Wide Adjustable Pouring Rate
From 50 to 1200 g/s, accommodates both small refrigerator doors and large commercial freezer boxes on a single machine with quick changeover.
Solvent‑Free Automatic Air Purge Cleaning
Eco‑friendly air purge system eliminates chemical solvents, keeping workshops clean and safe, ideal for dust‑free home appliance manufacturing environments.
Optimized for Automated Production Lines
Designed for standardized mass production, with stable operation and seamless integration into high‑speed refrigerator assembly lines.
Intelligent PLC Control with Multi‑Formula Storage
Touch screen interface stores multiple recipes for different models; one‑click switching reduces downtime and operator error.
Complete Your Production Line
Integrate the product with our full range of auxiliary equipment for a turnkey polyurethane processing system.
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