Key Functions:

Research and testing of air spring stiffness fatigue performance for railway passenger cars, EMUs, subway urban rail vehicles, monorail maglev trains, and other rail vehicles.

Testing and research on vertical load, vertical deformation, vertical stiffness, and vertical load fatigue cycles of air springs.

Testing and research on horizontal load, horizontal stiffness, horizontal displacement, and horizontal load fatigue cycles of air springs.

Research and testing of auxiliary spring stiffness fatigue performance for air springs.

Air spring airtightness testing, with a pressure resolution of 0.0001 MPa, a sealed high-pressure pneumatic pipeline system, and three pneumatic inflation methods.

Performance testing and research on large-curved capsule type, small-curved capsule type, double-curved capsule type, belt-type capsule, constrained membrane capsule, flat rubber stack auxiliary spring, hourglass rubber stack auxiliary spring, conical rubber stack auxiliary spring, and [conical rubber stack + flat rubber stack] auxiliary spring.

Performance testing and research on air springs for high-speed EMUs (China Railway High-speed trains), rail vehicles, railway passenger cars, subway and light rail trains, maglev trains, buses, large buses and other commercial vehicles, building foundations, and industrial machinery equipment.

The ASST-300kN air spring two-dimensional stiffness fatigue testing machine consists of a vertical load system, horizontal lateral load system, measurement and control system, pneumatic system, and safety protection system. Fully digital HRJ-Test air spring two-dimensional stiffness fatigue testing software / customizable international version.

Vertical test load: 200 kN (meets testing requirements);

Vertical travel displacement: greater than 250 mm;

Vertical loading speed: 0–500 mm/min, stepless speed regulation;

Vertical load indication accuracy: 0.5% (within 2%–100% of full scale);

Vertical displacement indication accuracy: 1% (within 200 mm of movement);

Lateral test load: 100 kN;

Lateral travel displacement: 200 mm;

Lateral loading speed: 0–500 mm/min, stepless speed regulation;

Lateral load indication accuracy: 0.5% (within 2%–100% of full scale);

Lateral displacement indication accuracy: 1% (within 200 mm of movement);