Automotive Carpet Acoustic PU Foaming Solution
Turnkey polyurethane backfoaming systems for heavy-layer automotive acoustic carpets, delivering uniform sound insulation and high fatigue resilience.
High-Precision Polyurethane Backfoaming for Automotive Carpets
With the rapid electrification of passenger vehicles, background powertrain masking noise has vanished, amplifying road rumble, tire noise, and floor vibration. Conventional thermoformed felt carpets offer limited low-frequency absorption and compress over prolonged foot traffic. Haifeng’s automated polyurethane carpet backfoaming solution combines a dense sound barrier layer with an in-situ expanded semi-rigid open-cell polyurethane foam core (120–140 kg/m³). This spring-mass structural damping delivers exceptional transmission loss and superior compression fatigue resistance.
Superior Sound Transmission Loss
Precisely controls semi-rigid open-cell foam density (120–140 kg/m³), dissipative airflow resistance, and acoustic friction to cut structure-borne cabin noise by 15–20 dB.
Anti-Crush Compression Durability
Formulated polyurethane cellular elasticity ensures minimal compression set (<8% after 100,000 footfall cycles), maintaining exact cabin floor contours over vehicle life.
Haifeng delivers complete processing systems—from high-pressure metering units and multi-axis trajectory pouring robots to optional multi-station mold clamping carousels—enabling automotive interior suppliers to scale high-yield acoustic carpet production.
Automated Carpet Backfoaming Manufacturing Workflow
A synchronized four-stage workflow delivering uniform acoustic foam distribution and rapid demolding without edge delamination.
Precursor Thermal Balancing
Dual-circuit TCU units stabilize polyol and isocyanate within ±0.5°C
Robotic Open-Mold Trajectory Pouring
High-pressure mixing head mounted on a 6-axis robot delivers dynamic contour dispensing onto the carpet backing
Low-Pressure Expansion & In-Situ Bonding
Mold closes under controlled pneumatic/hydraulic pressure; foam expands to bond directly with the heavy barrier sheet
Engineering Specifications & Technical Parameters
Standard operational values for the Haifeng automotive carpet backfoaming production line.
| Technical Parameter | Standard Specification / Value | Engineering Context & Verification |
|---|---|---|
| Target Application | Front/Rear Automotive Carpets, Wheelhouse Insulators | Cabin floor NVH acoustic insulation |
| Material Formulation | Semi-Rigid Acoustic PU Foam (Open-Cell) | High sound-dissipative formulation |
| Metering Output Capacity | 30 – 100 kg/min (Customizable) | Servo axial piston pumps with Ratio Lock |
| Foam Core Density | 120 – 140 kg/m³ | Acoustic transmission loss optimization |
| Demolding Cycle Time | 80 – 110 seconds (Standard 90 s) | High-cadence multi-station carousel |
| Noise Reduction Rating | 15 – 20 dB Structure-Borne Attenuation | Pack and body-in-white acoustic testing |
| Scope of Supply | Turnkey (Foaming Skid, Robot, TCU + Optional Mold Fixtures) | Complete workcell or carousel line integration |
Key Engineering Advantages
For Automotive Carpet Acoustic PU Foaming Solution, assess material compatibility, process control, equipment interfaces and changeover needs against your production brief.
15–20 dB Structure-Borne Attenuation
Dissipates chassis vibration energy through balanced cell airflow resistance.
Bubble-Free Edge Definition
Robotic precision trajectory pouring eliminates air pockets around deep footwell recesses.
Direct Chemical In-Situ Bonding
Eliminates secondary adhesive spraying, permanently bonding foam to EPDM/EVA heavy layers.
Rapid 90s Turnaround
Fast demolding kinetics ensure continuous output on automated multi-fixture lines.
Related Automotive Project
See the production line delivery and measured project outcomes.
Frequently Asked Questions
Engineering and purchasing questions about this polyurethane production route.
How does polyurethane backfoaming improve automotive carpet NVH performance?
Can Haifeng supply a multi-station automated carousel for carpet foaming?
What is the standard commissioning timeline?
Discuss Your Automotive Production Project
Share the part, material and target capacity for a tailored solution.
Relevant Haifeng Equipment
Equipment is shortlisted by the part, material system and process trials.
High-Pressure PU Foaming Machine | Automobile Carpets
High-pressure PU foaming machine for automobile carpets with 50-1000 g/s flow & ±0.3% accuracy. Robotic pouring, CE & ISO certified. Get a free quote.
High-Pressure PU Foaming Machine | Automobile Acoustic Pads
High-pressure PU foaming machine for automotive acoustic pads with 50-1000 g/s pouring, ±0.3% metering accuracy, two-stage mixing and hydraulic mold integration.
