Underbody Panels

Silent protection

Our underbody panels are the silent heroes of many automobiles: barely visible to the observer, they play a decisive role in aerodynamics as well as in protecting the engine, transmission and body. What's more, the panels minimize engine noise - both inside and outside. An overall quieter vehicle increases comfort and also helps to easily comply with noise regulations. To achieve this, we rely on a combination of high-quality materials and sophisticated design.

Sophisticated products for aerodynamics, acoustics, thermal management and protection

For the development of our underbody claddings we use not only the latest simulation technologies but also internal testing such as water crossings. With different processing techniques and material combinations we achieve the best possible quality and high efficiency in aerodynamics, acoustics, heat management and protection.

The most important highlights

Injection moulding (1 and 2 K)
- PP, PP/EPDM, PP mineral filled, PP/GF
Injection moulding compounding with MuCell
- PP/GF (MuCell), PP/EPDM mineral filled
Impact extrusion (high pressure)
- GMT, D-LFT, SMC
Mould pressing (low pressure)
- LWRT, non-woven material
Thermoforming
- HD-PE
Hybrid shaping
- Combination of injection moulding with compression moulding
- Combination of different materials, e.g. with organic sheet or aluminum heat shields

Your customer benefit through our Underbody Solutions

Low weight

LWRT: 1.000-2.000g/m²
Injection moulding with MuCell and Core Back: ~1.500g/m²

Cost effective solutions

Injection moulding of large parts with MuCell and core-back technology
Stack moulds for injection moulding
Multi-cavity molds for LWRT
PET monolayer material in combination with multi-cavity molds

High-performance components

Finely adjusted stone impact resistance: e.g. by means of soft components in critical areas
Adjustable stiffness/strength
Complete or partial heat shielding

Effective acoustics

Integrated absorption and sound insulation
Wide range of additional absorbers

Full service from Röchling

Röchling designs, develops and produces complete underbody paneling from all relevant materials with the aid of innovative processing technologies
In-house material and process development:
- Internal development and production of LWRTs based on PP/GF with a wide weight range from approx. 1,000g/m² up to 2,000g/m²
- Standard versions are available worldwide
- Customizable acoustic properties (multilayer material)
- PP/LGF with and without MuCell
Simulation and validation down to vehicle level (wind tunnel tests, water cruises)
40 years of experience in the development and manufacture of underbody paneling
Worldwide presence