Dual-Density Car Seat Foaming Line Upgrade Case | Hubei, China
A Hubei automotive seat project combining three-component dual-density PU foaming, robotic pouring and a turntable to replace separate production lines.
Dual-Density Car Seat Foaming Line Upgrade in Hubei
Project Background Located in an auto parts industrial park in Hubei Province, the customer is a manufacturer specializing in automotive seat foamed parts, producing about 450,000 cushion, backrest and headrest parts per year with revenue of about RMB 120 million in 2025. Challenges Soft-density and high-resilience parts ran on two separate lines, with density fluctuation of ±10%, a defect rate of 5%–8% and changeover time over 1 hour. Haifeng Solution The customer adopted the Haifeng turnkey dual-density car seat PU foaming line, integrating a 3-component dual-density high-pressure foaming machine, a pouring robot and a turntable line. Results Per-line capacity rose about 57%, density fluctuation fell to ≤±3%, defect rate to ≤2%, manpower dropped from 16 to 8, with annual savings of about RMB 1.4 million and a payback period of about 3.5 years.
Turnkey Line Configuration
The customer selected the Haifeng dual-density car seat PU foaming line turnkey solution, consisting of a 3-component dual-density high-pressure foaming machine, a pouring robot and a turntable line.
| Equipment | Model | Qty | Function |
|---|---|---|---|
| 3-Component Dual-Density High-Pressure Foaming Machine | HF-HPM-2A1B-DualDensityCarSeat | 1 set | Three material circuits (2 POLY + 1 ISO); mixing-head inlet and chamber configuration follows the approved equipment specification. Closed-loop metering with flow meters + VFDs. |
| Pouring Robot | 1 set | Automatic pouring along set trajectories, uniform spreading and accurate positioning | |
| Turntable Line | 1 set | Multi-station turntable, cyclic mold carrier operation: pouring–foaming–mold opening–part removal | |
| Electrical Control System | 1 set | PLC intelligent control with parameter setting, status monitoring and fault alarm |
Related Equipment Families
Catalog references describe related equipment families. The delivered model, auxiliaries and acceptance conditions follow the project configuration.
Upgrade Results

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