As the foundation of vehicle production, the quality of automotive materials and components is a prerequisite for the success of vehicle manufacturing. With the increasingly advanced functionalities of various new vehicle models and the growing demands for ride comfort and safety, automotive manufacturers are required to monitor material quality and safety at the source.

Xi'an LETRY specializes in manufacturing multi-channel durability testing systems for vehicle components. These systems are primarily used for three-dimensional fatigue and durability performance testing of automotive brake components, engine housings, crankcases, die-cast parts, sheet metal parts, joint components, bushings, ball joints, tie rods, control arms, and more. They can also be used for multi-directional composite testing, including tension, compression, and torsion, of metal materials and their components. The available test loading waveforms include sine waves, triangular waves, trapezoidal waves, ramp waves, random waves, road spectra, and more.

I. Applications:

Depending on the test conditions, the following tests can be performed:

1. Unidirectional tension-compression fatigue (durability) testing;

2. Unidirectional tension-compression static and dynamic stiffness testing;

3. Unidirectional torsion fatigue (durability) testing;

4. Combined tension (compression) and torsion fatigue testing;

5. Longitudinal and transverse dynamic and static testing;

II. Main Technical Specifications and Parameters:

(I) Linear Actuator Dynamic Loading System

1. Test Force:

Maximum tension-compression test force of the actuator: Dynamic ±15kN, Dynamic ±25kN

Load accuracy: Better than ±0.5% F.S.

Load amplitude fluctuation: Better than ±2% F.S.

Constant load (load holding) control: Effective within the measurable range.

2. Test Displacement:

Maximum actuator stroke: ±100mm

Displacement accuracy: Better than ±0.5% F.S.

3. Test Frequency:

0.1–10Hz (depending on the test amplitude-frequency characteristics)

4. Two control modes: Load and displacement

(II) Hydraulic Power Supply:

Flow rate: 130L/min

Maximum pressure: 21MPa

Operating oil temperature: <50°C

The hydraulic system is energy-efficient and highly efficient, utilizing low-noise high-pressure gear pumps.