Test Benches and Special Development

Test benches and devices are used during development to optimize and test prototypes and new designs. After that, the target specifications of parts are checked under conditions that are as realistic as possible during series production. This ensures that product quality is up to standard. Our test bench solutions give manufacturers and suppliers alike tried-and-tested, high-performance tools.

All examples shown are only an excerpt from our extensive portfolio and have been developed and built in close cooperation with our customers. We use the same test benches in similar configurations. Please contact us if you have any testing requirements:

Below you will find a quick overview of our range of products and services, as well as the option to download a detailed brochure.

• download here an overview brochure (8.16 MB)

Mobile Impactor (or gas gun)

New materials such as hybrid materials GLARE (Glass Fibre Reinforced Aluminium or Glass Laminate Aluminium Reinforced Epoxy) or "carbon-fibre-reinforced plastics" (CFRP) and "glass-fibre-reinforced plastics" (GFRP) have been displacing traditional materials such as aluminium for some time or replacing them on exposed elements due to their properties. The advantage in comparison to aluminium - until now the standard material in aircraft construction - lies in its better burn-through and impact behaviour. Another advantage over aluminium is its behaviour towards cracks. Cracks are "bridged" by the glass fibre layers, so that the crack speed decreases with increasing crack length, whereas with aluminium the crack speed increases strongly. Therefore, it is used primarily because of its behaviour towards cracks in the upper fuselage area and on the underside of the wing, as well as in the nose area of the vertical stabiliser and in the cockpit area due to its impact behaviour.

Other fields of application for hybrid materials are body construction for railways (locomotive construction) and the automotive industry.

The mobile impactor (gas gun) can be used to induce damage in components in an intentional manner (with reproducible energy).

Pressure Cycle- / Pressure Pulse Testbenches

Testing of metal and plastic components with pressure cycle test benches for dynamic pressure loading for service life tests. The pressure cycle can be sinusoidal, trapezoidal, or impulse-shaped.

- Can also be used for static pressures

- Several hundred bar peak pressure

- Superimposition of temperature profiles on the medium and environment possible

- Superimposition of linear or 3D movement possible

- Water, glycol, oil, and air can be used as media

- With or without flow of the medium

Moving Units

Linear or 3D motion units in conjunction with pressure pulses to simulate superimposed movements (e.g., of the motor)

Also available as stand-alone solutions

Thermal Shock Test Bench

The test bench for thermal shock and temperature change resistance is designed for temperature change tests with superimposed pressure testing.

Monoethylene glycol or glycol-water mixtures can be used as test media.

Burst Pressure Test Bench

The aim of a burst pressure test is to determine the maximum burst pressure of a test specimen until failure. Air, water, water/glycol mixtures, and oil can be used as test media.

Manual pressure specification or automated test sequences can be implemented using preset pressure ramps or pressure levels.

Pressure ranges up to 5500 bar, with temperature-controlled test chamber on request.

Inner Pressure Generator

This external pressure generator can be flanged to any cooling circuit using hose adapters, in this example to a truck cooling circuit. The medium here is a glycol/water mixture.

In addition, media flow with superimposed pressure change or static pressurization and media temperature control is possible.

Other media available on request.

Flexural fatigue test rig for spiral cables

Designed for continuous bending cycle stress on cables, the cable cores can be applied with test currents while the insulation resistance is checked at the same time.

Test Rig for Automotive Coolant Pumps

Automotive coolant pumps can be tested for leaks under continuous running conditions at various temperatures (up to 135°C) and pressures (up to 6 bar) at different speeds (up to 6000 rpm).

Coolant Flow Test Bnech

For temperature-controlled flow in continuous operation (3000 hours), e.g., plastic pipes with glycol/water

Surge Tank Test Bench

Flow tests on automotive surge tanks under constant pressure, with temperature control of the medium and the test chamber

These are usually endurance tests lasting many hundreds of hours.

Hot Air Pulser

Hot air pulsers for continuous stress tests on components of the charge air cooling system in the turbocharger of the combustion engine. These include parts such as rubber and plastic hoses, charge air hoses, charge air coolers, etc.

In addition to the pressure load with tempered air, movement, usually in three dimensions, is often superimposed. The test specimens, which are fixed to the test bench on one side, are moved at the other end by a robot or a proprietary 3D motion unit.

Air temperatures up to 250°C are possible, as well as overpressure up to 5 bar and underpressure down to -0.5 bar.

Gas Tightness Test Bench

Measuring gas tightness for automotive components.

Helium is used as the test gas, and the measured leak rates (using a gas chromatograph) can be converted into various reference gases, such as R744 (CO2).

The test specimens are installed in special measuring cells so that they can be pressurized and, at the same time, the environment can be evacuated with a vacuum pump via the gas chromatograph in order to measure leak rates down to 1 mm³/s or equivalent CO2 (R744) leak rates of <= 0.05 g/a.