Max. Peak force: 160 kN
Max. Dynamic force: 82 kN
Duration
Reliability
Dampers
Suspensions
Max. Dynamic force: 82 kN
Max. Peak force: 160 kN
Duration
Reliability
Dampers
Suspensions
We are pleased to present KUD, our new range of test machines for high-dynamic endurance testing of shock absorbers and suspension systems. The KUD systems are designed to replace hydraulic systems, and thanks to their advanced technologies and powerful motor, they can generate peak loads of up to 160 kN and continuous dynamic loads of up to 82 kN.
The KUD series is ideal for endurance and reliability testing of suspensions and shock absorbers, offering the capability to perform billions of cycles or short, high-performance sequences on single or multiple test specimens.
Features
Advantages
| KUD SERIES | KUD030 | KUD040 | KUD060 | KUD080 | KUD160 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Version | STD | L1 | L2 | STD | L1 | L2 | STD | L1 | L2 | STD | L1 | L2 | STD | L1 | L2* |
| Cont.dynamic load [kN] | 15 | 20 | 30 | 41 | 82 | ||||||||||
| Peak load [kN] | 30 | 40 | 60 | 80 | 160 | ||||||||||
| Speed at cont.load [m/s] 400VAC | 1.25 | 2.5 | 4.2 | 1.25 | 2.5 | 4.2 | 1.25 | 2.5 | 4.2 | 1.25 | 2.5 | 4.2 | 1.25 | 2.5 | 4.2 |
| Speed at cont.load [m/s] 480VAC | 1.5 | 3 | 5 | 1.5 | 3 | 5 | 1.5 | 3 | 5 | 1.5 | 3 | 5 | 1.5 | 3 | 5 |
| Max speed [m/s] | 2 | 3 | 6 | 2 | 3 | 6 | 2 | 3 | 6 | 2 | 3 | 6 | 2 | 3 | 6 |
| Standard stroke [mm] | 220 | 150 | 220 | 150 | 150 | ||||||||||
| Specimens | Multiple | ||||||||||||||
| Linear Guides | New special guides | ||||||||||||||
| Anti-rotational system | Included | ||||||||||||||
| Floor connection | Rigidly connected to the floor or on air springs | ||||||||||||||
No maintenance
High performance
High efficiency
Wide range of use
Quick and easy installation
In the video you can see our highly dynamic electric test machine from the HUD series at work, dedicated to testing shock absorbers and suspension. To find out more about all our shock absorber systems, click the button below.
What is a durability test on shock absorbers?
A durability test on shock absorbers involves applying repeated and continuous load cycles for hundreds of thousands or millions of cycles, simulating the wear and tear a shock absorber undergoes during years of road use. A typical durability test lasts from a few weeks to several months, depending on the number of cycles required, the test frequency and the applicable standards; for example, automotive tests may require 1–5 million cycles, whilst motorsport tests may exceed 10 million cycles.
What is the difference between a characterisation test and an endurance test on shock absorbers?
A characterisation test measures the shock absorber’s instantaneous performance, such as the force-velocity curve, and lasts for minutes or a few hours, providing a snapshot of its performance at that moment. A durability test applies the same load repeatedly over millions of cycles to check whether the shock absorber maintains its performance over time or whether it deteriorates, loses its seal, or fails, thereby revealing reliability issues that a single measurement cannot detect.
What standards govern the durability testing of shock absorbers?
Durability tests on shock absorbers must comply with standards such as ISO 21750 (shock absorbers and dampers), SAE J1619 and J1614 (automotive dampers), and vehicle manufacturers’ OEM specifications, which define the number of cycles, load amplitude, test frequency, operating temperatures and acceptance criteria to ensure that each shock absorber meets the industry’s reliability and durability requirements.
How does the KUD system maintain a constant load over millions of cycles without any drift?
A KUD system uses high-precision load cells and a continuous feedback load control circuit that constantly adjusts the actuator to maintain the exact rated load throughout the test, compensating for any changes in the stiffness of the damper or the test rig over time.
How many shock absorbers can KUD systems test at the same time?
KUD systems are designed as multi-station test benches, allowing 2, 3, 4 or more shock absorbers to be tested simultaneously under identical or different loads, thereby maximising the machine’s efficiency and significantly reducing the overall time required to collect comparative data on multiple product variants or suppliers.
