Low-Pressure PU Foaming Machine | Refrigerator Rigid Foam
High-efficiency large-flow low-pressure foaming system for rigid foam insulation layers of refrigerators, freezers, chillers and display coolers
±0.3% Accuracy
Ratio precision
loT Ready
Remote monitoring
30% Energy Save
vs.conventional
2-4 Components
Flexible config
Product Overview
Custom-developed for rigid foam insulation layer foaming of cabinets and doors of refrigerators, freezers, chillers and display coolers.
This low-pressure PU foaming machine is custom-developed for rigid foam insulation layer foaming of cabinets and doors of refrigerators, freezers, chillers, and display coolers. The 1A1B tank configuration with independent temperature and pressure control plus precise metering supports stable raw material mixing ratio, suitable for long-duration continuous mass production in the home appliance sector. High-speed mixing technology exclusive for rigid foam ensures thorough and even blending, delivering high closed-cell ratio and long-term stable thermal insulation. High-efficiency large-flow pouring (200–5000 g/s) enables rapid filling of appliance cabinets without material shortage or foam overflow, greatly improving production cycle efficiency. The solvent-free cleaning system paired with intelligent recipe management enables fast production line changeovers with zero pollution, meeting eco-friendly requirements of the home appliance industry.
Operation Workflow
Raw Material Preparation
Prepare polyol and isocyanate components at the target mix ratio (continuously adjustable 1:1 to 3:1); ensure both materials are properly conditioned and free from contamination.
Tank Loading & Temperature Control Setting
Load polyol into Tank A and isocyanate into Tank B; the 1A1B independent temperature control system maintains precise temperature within 20-60°C for both tanks.
High-Speed Mixing & Large-Flow Pouring
The PLC metering system dispenses precisely; the mixing head runs at 10,000-18,000 r/min for even blending, with large-flow output for rapid cabinet filling without shortage or overflow.
Foaming & Curing
The mixed rigid foam is injected into the refrigerator cabinet or door mold; exclusive high-speed mixing for rigid foam ensures high closed-cell ratio and stable insulation.
Technical Specifications
Standard configuration parameters for the refrigerator rigid foam low-pressure PU machine. Customizations are available upon request.
| Technical Parameter | HF-LPM-1A1B-R-Refrigerator |
|---|---|
| Output Flow Rate | 200~5000g/s |
| Raw Material Mix Ratio | Continuously adjustable from 1:1 to 3:1 |
| Tank Volume | 120/220/500L |
| Mixing Head Rotation Speed | 10,000~18,000r/min (typical operating range: 12,000~15,000r/min) |
| Metering Accuracy | ≤±0.3% (full range) |
| Tank Configuration | 1A1B |
| Material Temperature Control | Precise temperature control within 20~60℃ |
| Cleaning System | Automatic air purge + pipeline circulation solvent-free cleaning |
| Control System | PLC + Touch Screen + Recipe Storage Function |
| Equipment Power | 11~18.5kW |
| Warranty Period | 1 Year |
| Certifications | Confirm applicable documents for the quoted configuration |
Key Features & Advantages
Engineered for high efficiency, precision, and eco-friendly production in home appliance rigid foam manufacturing.
High-Speed Mixing Technology Exclusive for Rigid Foam
Thorough and even blending of raw materials at 10,000–18,000 r/min delivers products with high closed-cell ratio and long-term stable thermal insulation performance.
High-Efficiency Large-Flow Pouring
Output flow rate of 200–5000 g/s enables rapid filling of home appliance cabinets without material shortage or foam overflow, greatly improving production cycle efficiency.
Independent Temperature & Pressure Control for 1A1B Tanks
Precise independent control plus accurate metering supports stable raw material mixing ratio, suitable for long-duration continuous mass production in the home appliance sector. Confirm results for the selected formulation and operating conditions.
Environmentally Friendly Solvent-Free Cleaning
Automatic air purge + pipeline circulation solvent-free cleaning enables fast production line changeovers with zero pollution, meeting eco-friendly production requirements.
Intelligent PLC Control with Recipe Storage
PLC + touch screen interface with recipe storage function simplifies operation, enables precise parameter adjustment, and supports fast changeovers between different product specifications.
Wide Temperature Control Range (20~60℃)
Precise temperature control across a wide range ensures optimal material consistency and foaming conditions for various rigid foam formulations.
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