Shock Absorber Testing Machine

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The Shock Absorber Testing Machine is a high-precision, servo-controlled bench system engineered to evaluate the dynamic mechanical behaviour of hydraulic, gas-pressurized, magnetorheological (MR) and pneumatic dampers. Unlike a general-purpose fatigue frame or a universal material tester, this system is purpose-built to reproduce the real kinematic and load boundary conditions a damper sees in service — sinusoidal ride motion, road-spectrum transients, thermal drift, and side loading from the wheel.

By closing the loop on displacement, force and velocity, the machine captures the full force–displacement hysteresis loop (the "indicator diagram" / dyno plot), resolves rebound and compression damping forces, and tracks how those forces decay over hundreds of thousands of cycles. It is the single instrument that takes a damper from prototype validation through end-of-line quality release.

Test	Deliverable	What It Reveals
Indicator (dyno) test	Force–displacement hysteresis loop	Rebound & compression force, damping asymmetry, void travel, curve distortion
Velocity characteristics	Force–velocity curve at multi-step speeds	Valve tuning, blow-off points, damping linearity
Temperature characteristics	Damping force vs. temperature	Thermal fade rate, cold-start force, oil viscosity stability
Fatigue / durability	500,000–1,000,000+ cycles	Seal leakage, rod wear, damping decay, bushing cracking
Friction & gas reaction	Friction force, gas反弹 force	NVH behaviour, seal drag, gas-chamber integrity
Side-load (optional)	Wear under lateral force	Anti-eccentric-wear capability, real cornering conditions

Parameter	End-of-line / mechanical series	Electro-hydraulic R&D series
Max. dynamic force	±10 kN	±20 / ±30 / ±50 / ±100 kN
Force accuracy	≤ ±0.5% FS	≤ ±0.5%–1% FS (2%–100% FS range)
Actuator stroke	±50 / ±100 mm	±100 / ±125 mm (custom to ±150 mm+)
Frequency range	0.1–5 Hz	0.01–20 Hz (up to 50–100 Hz on request)
Max. test speed	~1.0 m/s	1.5–3.0 m/s (up to 5 m/s)
Displacement resolution	0.01 mm	0.001–0.01 mm
Waveforms	Sine	Sine, triangle, square, ramp, random, road-spectrum import
Specimen length	200–900 mm adjustable	200–1,200 mm+ adjustable
Hydraulic supply	—	21 MPa constant-pressure servo pump station, water-cooled
Power	Single/three-phase	AC 380 V, 50 Hz, ~30 kW class

Standards Compliance

Test methods and data processing satisfy the requirements of:

QC/T 491 — Automotive telescopic shock absorbers: performance requirements and bench test methods
QC/T 545 — Bench test methods for automotive telescopic shock absorbers
GB/T 25751 — Indicator (dyno) test specification · GB/T 29238 — Durability test method
QC/T 62 — Motorcycle and moped shock absorbers · TB/T 2229 — Rail vehicle hydraulic dampers
ISO 6312 — Sliding-plunger dampers · ISO 10143 (leakage) · ISO 13043 (gas-pressurized dampers)
SAE J2521 / SAE J2562 — Damper durability and road-simulation procedures
Machine safety: ISO 13849; measurement traceability to CNAS / ISO 7500-1 calibration practice

Qualifications

Jinan Kane Testing Machine Manufacturing Co., Ltd. specializes in R&D and production of torsion testers, fatigue testers, spring testers and universal material testing machines. We offer standard and customized test solutions for automotive, aerospace, medical, fastener and composite industries. Our machines meet ISO, ASTM and GB standards, with reliable quality and full after-sales support for global customers.

Factory workshop

All complete machines are covered by a one-year quality guarantee. Any quality problems arising within the guarantee period will be addressed, and lifetime maintenance is provided.

Our service

Our team of experts offers professional guidance and advice every step of the way, ensuring that you feel confident and informed throughout the process. We provide worry-free after-sale service.

Before sales

Inquiry and consulting support. We will give you professional instruction and help you to buy a suitable machine, after you choose our machine, let you take the biggest profit through using our machine.

In sales

We will update information about your order position.

After sales

The equipment be guaranteed for one year. For foreign users, our company provides online video, telephone and other technical support. If you need, we can go to your factory to supply training service. We do our best to ensure that your interests are not prejudiced.

Quality assurance

All complete machines are covered by a one-year quality guarantee. Any quality problems arising within the guarantee period will be addressed, and lifetime maintenance is provided.

Machine Packing And Loading

Wrap the machine after applying anti-rust oil and pack it in non-solid wood packaging boxes for safe transportation.

Why choose us

THE FOUR GUARANTEES ARE MORE REASSURING

Source factory

Support customization

Professional guidance

Worry-free after-sale service