High Pressure PU Foam Machine
Modular structure design, convenient daily maintenance and quick parts replacement ensure long-term continuous and stable operation. One machine has multiple uses and is suitable for various formulas and molds.
High Pressure PU Machine — Overview
A high pressure PU foaming machine mixes polyol and isocyanate by impingement at roughly 100–200 bar inside a self-cleaning mixing head, so it needs no solvent flush and delivers fast, high-output polyurethane foaming. It handles both rigid and flexible foam equally well — rigid insulation (sandwich panels, refrigerators, freezers, water heaters, continuous panel lines) and molded flexible or semi-rigid foam (car seats, cushions, memory-foam pillows and integral-skin parts) — with the right formulation, mixing head and mould.
Because the self-cleaning head opens and closes mechanically, a high pressure PU foaming machine runs long production cycles with minimal waste and consistent foam density. Yongjia builds high pressure PU machines with two- or three-component metering, configurable output, day tanks and automation to match your product, line speed and mould size, with OEM/ODM and CE support — as a China manufacturer since 2006, exported to 60+ countries.
For small batches and frequent formula or color changes, compare our low pressure PU foaming machine; for on-site insulation see the PU spray foam machine, or browse the full PU machine range.
Machine Structure
How It Works
A high pressure PU machine mixes polyol and isocyanate by impingement — no mechanical stirrer and no solvent flush — then injects the reacting blend into a mould or panel cavity.
Technical Parameters
| Foam Application | Rigid / flexible foam |
| Injection Pressure | 10-20 MPa (adjustable) |
| Output (mixing ratio 1:1) | 90-450 kg/min |
| Mixing Ratio Range | 1:5 - 5:1 (adjustable) |
| Injection Time | 0.5-99.99 s (0.01 s resolution) |
| Material Temperature Control | ±2 °C |
| Repeat Injection Accuracy | ±1% |
| Tank Volume | 500 L |
| Temperature Control System | Heat 2 × 9 kW |
| Input Power | Three-phase five-wire, 380 V |
Core Components
High Pressure Machine Types
Choose the build that matches your formula and blowing agent — two-component, multi-component or a cyclopentane explosion-proof system.
High Pressure vs Low Pressure
Not sure which fits your product? High pressure suits high-output, stable-formula production of both rigid and molded flexible foam; low pressure suits small batches and frequent formula or color changes. The right choice also depends on your output, mould count and automation level.
| High Pressure | Low Pressure | |
|---|---|---|
| Mixing method | High-pressure impingement (self-cleaning head) | Mechanical / dynamic stirring |
| Best for | High output, stable formula — rigid & molded flexible foam | Small batches, frequent formula / color changes |
| Cleaning | Self-cleaning head, no solvent flush | Often needs cleaning after runs |
| Output | High, 90–450 kg/min | Small to medium |
| Typical use | Refrigerators, panels, water heaters, car seats, pillows | Small molded parts, flexible trials |
| Investment | Higher | Lower |
See our low pressure PU foaming machine or the guide High vs Low Pressure: which is better?
How to Choose the Right Configuration
Tell us your product and target output and our engineers size the machine. As a quick guide:
| Your product / requirement | Recommended configuration |
|---|---|
| Refrigerator / freezer cabinet | Two-component (or cyclopentane) high-pressure system with cabinet fixture |
| Cold room / sandwich panel | High-output machine + panel fixture or continuous panel line |
| Water heater insulation | Stable metering + fixed injection station |
| Pipe insulation | Medium-output machine + rotating pipe fixture |
| Car seat, cushion or pillow | Molded-foam build with matching mixing head and mould / carousel line |
| Frequent formula or color changes | Compare a low-pressure or multi-component system |
| Large continuous production | High-output metering with automatic mixing-head tracking or robot pouring |
Configuration & Options
Every machine is built to your product, output and mould. A typical build:
- Two-component high-pressure metering
- Self-cleaning mixing head (L- or T-type)
- Heated, agitated day tanks with ±2 °C temperature control
- Axial-piston high-pressure metering pumps
- PLC + HMI touch-screen control
- Flow monitoring & safety pressure relief
- Three-component metering
- Cyclopentane explosion-proof system
- Robot / moving mixing-head pouring on a guide rail
- Multi-station mould line or continuous panel line
- Custom output, voltage and tank volume
- Moulds & fixtures, installation, operator & formula training
- OEM/ODM, CE certification and a five-year warranty
Applications & Advantages
Yongjia’s high pressure PU foaming machines are widely used in home furnishings, automotive parts, cold chain insulation, building energy conservation and footwear manufacturing. The multi-purpose modular design lets customers flexibly upgrade equipment to suit production lines of varying capacity and adapt quickly to market changes. Long-term stable operation, a five-year warranty and comprehensive process training ensure consistent, high-quality polyurethane output across diverse application scenarios.
Frequently Asked Questions
What is a high pressure PU machine?
What is the difference between high pressure and low pressure PU machines?
What products is a high pressure PU machine used for?
How many components and what output does it support?
Can it be customized, and what is the MOQ and lead time?
Get a Price Quote
Tell us your output, mold and automation requirements — our engineers reply within 24 hours with an exact price, configuration and lead time. OEM/ODM & CE supported.
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