Replicate the real road conditions, accurately verify the damping performance | ｜LWS‑100A electro-hydraulic servo shock absorber indicator fatigue testing machine, and build a defense line for parts quality.

> lead: the stability and comfort of vehicle driving can not be separated from the reliable protection of shock absorber. From bumpy road impact to long-term reciprocating alternating load, the damping characteristics and durable fatigue performance of shock absorber are directly related to the driving experience and driving safety of the whole vehicle. How to accurately restore the real road conditions in the laboratory and efficiently complete a complete set of tests such as indicator, speed characteristics, fatigue and durability? Jinan Liling LWS‑100A electro-hydraulic servo shock absorber indicator fatigue testing machine gives a professional solution.

In the fields of automobiles, rail transit and construction machinery, the quality control of shock absorbers, dampers and hydro-pneumatic springs has always been the top priority of parts research and development and factory inspection. Traditional testing equipment has some pain points, such as single working condition simulation, high-frequency test data drift, and insufficient stability of long-term fatigue operation, which is difficult to meet the requirements of new product iteration and strict national standard testing.

LWS‑100A dynamometer fatigue testing machine for electro-hydraulic servo shock absorber, relying on electro-hydraulic servo dynamic loading technology, covers * * dynamometer test, speed characteristics, static friction, temperature characteristics, fatigue durability, sine superposition double-action fatigue, hydro-pneumatic spring stiffness test * * and other test items in one stop. It can output sine superimposed waveform to simulate complex real road conditions, move road bumps into the laboratory, help R&D personnel quickly locate product defects, optimize product formula and structure design, meet the requirements of batch quality inspection at the same time, and fully meet the requirements of relevant standards for bench test of automobile cylinder shock absorber.

# # Hard-core hardware configuration, creating stable and high-precision testing strength

The whole machine consists of six core units, namely * * double-column gantry main engine, servo actuator with lower hydrostatic support, constant-pressure servo pump station, full-digital servo controller, professional test software and complete test fixture. Every detail is designed for dynamic fatigue test.

* * High rigidity gantry host frame * *
Integral finishing steel structure beam, equipped with hydraulic lifting and hydraulic clamping mechanism, which can flexibly adjust the test space of 300‑1000mm; During the test, the cross beam is locked firmly, which prevents the data deviation caused by the deformation of the frame and adapts to the shock absorption samples with different length specifications.

* * hydrostatic support servo actuator (core component) * *
±100kN test force, ±75mm effective stroke and maximum speed ≥ 1m/s. Using hydrostatic suspension technology, the piston rod is suspended by high-pressure oil, which has extremely low internal friction and strong lateral force resistance, ensuring the accuracy of high-frequency dynamic testing, which is the key guarantee for the dynamic performance of equipment.

* * Constant pressure servo modular pumping station * *
The system pressure is 21MPa, the flow rate is 75L/min, and the motor power is 30KW；. The design of three-stage filtration and two-stage energy storage and pressure stabilization is adopted, and multiple filtration ensures the oil of servo valve to be clean; Integrated temperature, liquid level and blockage alarm protection, with automatic alarm and shutdown when the oil temperature is too high, the filter element is blocked, and the oil level is too low. All hydraulic pipelines are sealed by well-known brands to reduce oil leakage and support long-term uninterrupted fatigue test.

* * PDTestPF digital servo control system * *
Dual CPU architecture, independent controller Ethernet communication, frequency of 0.001‑100Hz, supporting closed-loop control of smooth switching of force and displacement; It can output sine, triangular wave, square wave, trapezoidal wave, superimposed composite waveform and other waveforms. Supporting PF300 series multi-task test software, it can automatically collect force and displacement data, draw indicator hysteresis curve, automatically store test data and export reports. Open the DLL programming interface, support the secondary development of customers' personalized functions, and the software interface is simple and intuitive, which lowers the learning threshold for operators.

* * Multiple safety protection systems * *
The equipment has built-in multiple protection mechanisms such as overload, overtravel, oil temperature overrun, oil filter blockage, fatigue times arrival, etc., and it automatically stops and locks under abnormal working conditions to protect the safety of personnel, samples and equipment. At the same time, several sets of special fixtures are equipped, and the fixtures are respectively configured for the dynamic fatigue and characteristic test of the shock absorber, so that it is convenient and efficient to disassemble and assemble the sample.

# # Widely used scenarios

The equipment is suitable for auto parts enterprises, rail transit supporting manufacturers, construction machinery manufacturing units, scientific research institutes, university laboratories and third-party testing institutions;
New product development stage: verify damping performance and stiffness parameters, simulate road conditions to do superimposed wave fatigue, and optimize product structure;
Ex-factory quality inspection: indicator test, damping force judgment, and control the ex-factory quality of finished products;
Durability and reliability assessment: millions of cyclic fatigue tests to evaluate the damping attenuation of shock absorbers under long-term service;
Comprehensive mechanical properties testing of hydro-pneumatic springs and various damping components.

# # List of key technical indicators

-maximum test force: ±100kN, indicating accuracy of 1% (2% 100% fs)
-frequency range: 0.01‑30Hz
-Maximum linear speed ≥2m/s
-actuator stroke: ±75mm (total stroke is 150mm)
-Support a variety of test waveforms, and meet all dynamic and static test requirements.

# # Full-cycle service, free from worries

Jinan Liling Testing Machine, with ISO9001, CE and many other authoritative certifications, provides complete closed-loop services from pre-scheme docking, on-site installation and debugging, to practical training and post-maintenance.
Free warranty for **12 months after acceptance, and lifelong maintenance of equipment * *;
After-sales quick response: 1 hour response consultation, quick output solution;
Free on-site practical training, teaching operators to independently complete the test and daily maintenance;
The software is iteratively upgraded for free, and the test function is continuously optimized.

A high-performance testing equipment is the touchstone of product quality, from the iteration of parts research and development to the factory quality control. LWS‑100A electro-hydraulic servo shock absorber indicator fatigue testing machine, to stabilize hardware, intelligent software, enrich the test ability, and help the high-quality development of shock absorption and cushioning parts industry.

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