300AF anti -Yaw Damper

Suspension hydraulics performance determines the ride index of high-speed trains, which is why our anti-yaw dampers incorporate state-of-the-art engineering characteristics verified under TJ/CL284-2014 standards:  

Linear Damping Characteristics: Rated damping force ranges precisely between 9.5∼12.5 kN at 0.01 m/s and reaches 10.03∼13.57 kN at its nominal speed of 0.06 m/s.  

Continuous Indicator Diagram: The damping curves are exceptionally continuous and smooth, strictly eliminating any erratic jumps, oscillations, or transitions at maximum displacement vertices.  

Low Asymmetry Rate: Achieves an asymmetric force ratio between extension and compression of ≤10%, ensuring balanced lateral forces during high-speed curves.  

Extreme Thermal Resilience: Maintains operational integrity and damping performance after being subjected to extreme environmental soak testing from −40 ∘ C±2 ∘C to +70 ∘C±2 ∘C for over 24 hours.  

Zero-Leakage Sealing: Survives dynamic rig testing (bench test at nominal velocity for 20 continuous sine wave cycles) and 24-hour horizontal leakage tests without a single trace of oil discharge.  

Suspension hydraulics components from our portfolio are deeply integrated into critical high-speed rail networks. Our dampers are primarily utilized on the CR300AF platform, and our next-generation rolling stock dampers have successfully entered the trial phase on China’s latest, fastest CR450 high-speed train project. We provide both new-build OEM manufacturing and certified overhaul/maintenance services, helping global railway operators minimize lifetime asset costs while guaranteeing identical OEM quality and strict safety profiles.

Q1: Can your suspension hydraulics dampers be customized for specific urban rail or locomotive platforms?

A: Yes, absolutely. We offer fully 

customizable production for all damper models across high-speed rail, subways, city rail transit, locomotives, freight wagons, passenger coaches, and large railway maintenance machinery. This includes anti-yaw dampers, motor dampers, vertical dampers, and lateral dampers tailored to your technical specifications.

Q2: What industry testing certifications does your high-speed rail testing laboratory hold?

A: We operate an elite, institutional-grade testing laboratory backed by dual 

CNAS (China National Accreditation Service) and CMA (China Inspection Body and Laboratory Mandatory Approval) certifications. This state-of-the-art facility is a leader in China—matching the experimental capabilities of the China Academy of Railway Sciences (CARS) and Southwest Jiaotong University (SWJTU)—to ensure that all damper damping characteristics and endurance metrics strictly satisfy operational demands.

Q3: What is your company's credentials regarding China's high-speed railway supply chain?

A: We are proud to be the 

first private enterprise in China to obtain the official EMU (Electric Multiple Unit) Component Certification Certificate for operating speeds of 300km/h and above. This milestone reflects our high-standard manufacturing quality, technical compliance, and strict adherence to national railway safety protocols.

Q4: How do your products compare in pricing without sacrificing high-speed rail safety?

A: Due to lean private-sector manufacturing and optimized supply chain management, our products offer 

highly competitive pricing while maintaining incredibly stable product quality. We deliver high-standard railway components at a much lower cost-to-performance ratio than legacy international brands.

Q5: Do you support both new manufacturing and overhaul/refurbishment of worn dampers?

A: Yes. We simultaneously provide 

both maintenance/overhaul and new-build manufacturing services. This holistic approach helps railway operators significantly reduce maintenance costs while ensuring that overhauled units exhibit identical product quality, sealing reliability, and damping precision as brand-new OEM components.

Q6: Can we place a small sample order to run field or bench verification trials first?

A: We highly welcome and support 

small-batch trial orders for testing. We understand the critical nature of railway safety approval and are glad to supply initial units for bench validation or prototype track testing to establish technical trust.

Q7: What commercial and technical benefits do you offer for long-term strategic procurement?

A: For global agents and railway authorities establishing 

long-term cooperation, we extend preferential pricing structures along with dedicated technical priority, customized production queues, and streamlined logistics to maximize mutual supply chain efficiency.

Q8: Are your dampers ready for next-generation very-high-speed trains exceeding 400km/h?

A: Yes. Our high-standard dampers engineered for the 

CR450 platform have successfully entered the active experimental trial phase. The CR450 is currently slated to be China’s fastest operational high-speed train, proving our positioning at the absolute forefront of high-speed rail damping technology.

Q9: What kind of warranty and after-sales support system do you provide?

A: Every damper shipped comes with a comprehensive 

after-sales warranty and full documentation, backed by our dual CNAS/CMA laboratory tracking. Our field engineering team provides 24/7 technical support, rapid response site audits, and seamless spare parts supply to secure total operational peace of mind.

Q10: How can potential clients or operators audit your manufacturing and laboratory capabilities?

A: We warmly 

welcome global distributors, agents, and mainline railway/subway operating authorities to visit our factory for on-site inspections. You can personally tour our advanced manufacturing lines and witness type-testing procedures inside our leading high-speed rail damper laboratory.

Mastering suspension hydraulics is non-negotiable when ensuring high-speed rail safety, ride comfort, and wheel-rail wear reduction. Backed by our elite CNAS/CMA certified testing facilities, industry-first private enterprise rolling stock credentials, and active field testing on China's groundbreaking CR450 train, we are your undisputed partner for cutting-edge dampening technology. Whether you represent a metro operator looking to cut costs via premium overhauls, or a global rail distributor looking for reliable OEM supply, contact us today to co-develop tomorrow's transit solutions.