A high-pressure PU foaming machine meters, mixes and dispenses the polyurethane core used in insulated sandwich panels. The machine must be selected as part of the panel process: panel width, line speed, target foam density, facing material and the available filling time all affect the required output and mixing-head arrangement.
Where the Foaming Machine Fits in the Panel Line
The metering unit conditions and delivers polyol and isocyanate to the mixing head. The head then applies the mixed material between the panel facings before the material expands and cures. A complete project may also require facing preparation, panel conveying, pressing or double-belt lamination, cutting and downstream handling. The exact interfaces should be defined before the foaming machine is quoted.
Configuration Decisions
| Decision | Why it changes the equipment scope |
|---|---|
| Continuous or discontinuous production | Determines how the mixing head, conveyor and controls coordinate with the filling window. |
| Panel width, thickness and length range | Sets the material demand per panel and the required dispensing pattern. |
| Target density and material system | Affects ratio control, temperature conditioning and the working output range. |
| Facing material | Metal sheet, flexible facing and other constructions require different handling and line interfaces. |
| Production speed or panels per shift | Determines whether one dispensing position is sufficient and how much output reserve is needed. |
Core Machine Functions to Confirm
Metering and ratio control
The pumps, flow measurement and control logic must cover the specified material system and operating range without sizing the machine from a single nominal number.
Mixing-head arrangement
L-type and other head arrangements can be considered according to the filling path, available installation space and cleaning or maintenance access.
Line integration
Signals, timing, movement and safety interlocks should be agreed with the conveyor, press or lamination line before commissioning.
Recommended Parameters for Sandwich Panel Foaming
| Parameter | Typical Range |
|---|---|
| Components | 2-3 Components |
| Flow | 110-250 g (suitable for finished product weight 1 kg) |
| Power | 18-100 kW |
These figures are a starting reference only — the exact machine model, tank size and mixing-head arrangement are confirmed once panel width, density and line speed are reviewed.
What Changes the Quotation
Price and lead time depend on the required output range, number of components, tank and temperature-control configuration, mixing-head movement, automation interfaces, voltage and local safety requirements. A useful quotation therefore starts with the panel specification and production target, not only the words “high-pressure machine.”
WhatsApp: Ask About the Sandwich Panel MachineRelated Equipment
Sandwich Panel Production Line
Review the wider line process and supporting equipment.
High-Pressure PU Foam Machines
Compare the general machine platform and component options.
Project Review
Send panel dimensions, density and target output for configuration review.
FAQs
Can the machine be selected from panel width alone?
No. Width is only one input; thickness, density, line speed, filling time and the material system are also needed to calculate the working output range.
Does the foaming machine include the complete sandwich panel line?
Not automatically. The metering and mixing machine is one part of the process. Conveying, pressing or lamination, facing handling, cutting and other stations must be scoped separately.
Can it connect to an existing panel line?
Potentially, but the mechanical position, control signals, production timing and safety interlocks of the existing line must be reviewed before a configuration is confirmed.
What should be sent for a useful quotation?
Provide panel dimensions, facing material, target foam density, material system, required line speed or shift output, voltage and a drawing or video of the existing line when applicable.