Heavy-Duty Subway Shock Absorber for Trains, Ideal for Chemical Exposure

• Customization: Available
• After-sales Service: Issue 100% Recall
• Warranty: 180 Sky
• Material: Rubber Steel
• Certification: ISO10012, ISO/TS16949, ISO9001
• Car Make: Volkswagen, WuLing, Benz, BMW, Hyundai, Honda, Toyota, Jeep, Nissan, Ford, Buick, Chery, Chevrolet, Cadillac, Geely, Roewe, Audi, Peugeot, Lexus, Volvo, Mazda, Kia
• Position: Chassis System
• OEM: Yes
• Type: Chassis System
• Applicable Temperature: From Minus 60 Degrees to Plus 300 Degrees
• Scope of Application: Various Chemical Substances
• Custom Specifications: Customizability Can Reach up to 500 Centimeters
• Transport Package: Packaging Bag; Cardboard Box
• Trademark: Anran
• Origin: China Hebei
• HS Code: 8708809000
• Production Capacity: 500000pieces/Yaer

Product Description

The revolutionary Heavy-Duty Subway Shock Absorber for Trains is ingeniously designed to transform mechanical vibration kinetic energy into heat energy effortlessly. This heat energy is then absorbed by the superior high elastic deformation properties of the advanced rubber material, ensuring unparalleled performance.
Its core functions are masterfully designed to enhance system integrity:
1. Energy Dissipation: The absorber skillfully minimizes vibration energy through the utilization of viscous shear and elastic hysteresis effects, ensuring a smooth and quiet operation.
2. Momentum Isolation: It expertly blocks the vibration transmission path, effectively reducing the risk of system resonance, thus prolonging the lifespan and reliability of the system.
3. Buffer Protection: With remarkable efficiency, it absorbs shock loads, thereby significantly extending the service life of the equipment and enhancing overall safety.
Zhongmu Rubber is at the forefront of innovation, consistently developing both existing and breakthrough products, providing customers with top-tier, high-performance isolation solutions that set new standards in quality and reliability.

1.Typical Construct Type Comparison: A detailed analysis of various construction types used in absorber design, emphasizing their unique benefits and optimal applications.

structured type	structure characteristics	Dynamic performance parameters	application scenarios
Solid compression type	Single rubber column (no reinforced layer)	Scirrhosity ShoreA70-90	Low-frequency and large-amplitude industrial equipment
Fiber enhancement type	Rubber matrix + aramid fiber woven mesh	shear modulus≥15MPa	Earthquake absorption of high-speed rail transit
Metal nested type	Aluminum alloy shell + rubber lining	radial rigidity ≥500N/mm	Generator set vibration isolation
Multi-layer compound	NBR base layer + EPDM damping layer + silicone surface layer	thermal adaptability -50~+200ºC	Semiconductor equipment precision vibration isolation

2.Classical Structure and Its Classification: An in-depth exploration of traditional absorber structures alongside their categorizations to guide informed decision-making.

structure type	operational principle	typical parameter	application scenarios
Compressed shock absorber	The rubber column is deformed by the axial compression	Scirrhosity60-90 ShoreA,compression ratio≥30%	Car suspension, machine tool shock absorption
Cut-type shock absorber	Rubber sheets produce shear deformation under shear sheets	shear modulus≥10MPa,thickness2-5mm	Electronic equipment, building vibration isolation
Compound shock absorber	Rubber + spring / hydraulic pressure works together	Nonlinear stiffness characteristics, with adjustable damping	Heavy machinery, high-speed rail track
Damage liner	Thin-walled rubber sleeve covers the rotating shaft	radial rigidity 50-500N/mm,friction(al) coefficient 0.1-0.3	Rotary shaft frame vibration control

3.Material Type Selection System: A sophisticated system designed to aid in selecting the best materials for specific operational needs, enhancing performance and durability.

Rubber type	dynamic modulus (MPa)	temperature range(-40ºC~+150ºC)	oil resistivity (70#)	Typical application
NBR	2-5	-40ºC~+120ºC	Volume change rate<10%	Automobile shock absorber, hydraulic cylinder bushing
EPDM	3-8	-50ºC~+180ºC	Volume change rate<5%	Building vibration isolation cushion, wind power sealing
SBR	2-4	-20ºC~+100ºC	Volume change rate<15%	Industrial floor damping pad
IIR	1-3	-40ºC~+80ºC	Volume change<8%	Precision instrument vibration absorber

4.International Standard and Test Range: Assurance of meeting global standards through comprehensive testing to guarantee superior quality and performance.

criterion	test project	technical requirement
ISO 9001	quality management system	Whole-process traceability
GB/T 10179	Experimental method of rubber shock absorber	The deformation was <20% after 10 ^ 6 cycles
ASTM D3452	Schematic drawing test	Rehome rate is> 70%
IEC 60068-2-6	Environmental experiments	-40ºC ~ + 85ºC cycle aging

5.Failure Mode and Structural Improvements: A proactive approach to identifying potential failure modes and implementing structural enhancements to prevent future issues.

failure mode	analysis of causes	Improve the plan
surface checking	UV aging (> 2000h exposure)	Add UV absorber (carbon black N330)
The central hole collapsed	Localized overload (> 150% rated load)	Set the safety factor (≥2.5)
Damage recession	Liquid erosion (ASTM D471 test)	HNBR oil resistant rubber
Install stress cracking	Taper fitting (H7 / p6)	Add flexible spacer (Shaw 30-50A)

6.Typical Application Scenarios and Product Types: Insightful guidance on optimal applications of our products across various scenarios to ensure maximum efficiency.

device type	Application site	vibration performance	Type of shock absorber	Type of shock absorber
excavator	Rotary turning platform and walking mechanism	Low-frequency (2-10Hz) axial vibration	Compressed shock absorber	Hardness of Shore A 70-90, compression rate of 30%
crane	Hanging arm, balance beam	Intermediate frequency (10-50Hz) torsional vibration	Cut-type shock absorber	Shear modulus of 15MPa, 5-8mm in thickness
loader	Hanging arm, balance beam	High-frequency (50-200Hz) random vibration	Compound shock absorber	Rubber + metal skeleton, with a damping ratio of ζ =0.8-0.9
road roller	Shbrator, self-walking wheel	Impact load (5-10ms pulse)	hydraulic buffer	Ababsorbed energy 200 kJ with response time <50ms
shield tunneling machine	Spindle drive, pipe segment assembly machine	Multi-axial synchronous vibration (axial + radial)	3 D shock absorption module	Flexible connection design, torsional torque 500 N·m

7.Manufacturing Process Flow: An elaborate yet efficient manufacturing process that ensures the highest quality and consistency in each product.
1.Material Premixing: A crucial step in our process ensuring perfect preparation for superior quality.
Hot Feeding System: Featuring precise temperature control of ± 1°C to maintain exceptional material uniformity, crucial for the final product quality.
Fiber Dispersion: Achieving 95% dispersal, validated through a laser particle size analyzer, ensuring optimal material performance.
2.Molding Process: Advanced techniques ensuring precision and quality.
Compression Molding: Meticulously controlled with mold temperature at 60°C and pressure at 15MPa, ensuring a perfect pressure holding time of 30 minutes for high integrity.
Injection Molding: Optimized with a screw speed range of 50-100 rpm and injection temperature between 80-120°C for consistency.
Vacuum Vulcanization: Ensuring precision with pressure set at 0.95MPa, temperature at 150°C, over a duration of 60 minutes, enhancing product durability.
3.Reprocessing: Final touches that refine and perfect.
Surface Treatment: Enhanced with a spray polyurethane anti-fouling coating at a meticulous 0.2mm thickness, ensuring longevity and resistance to harsh conditions.
Performance Optimization: Using microwave vulcanization to achieve a remarkable 40% efficiency improvement, with a temperature variance of ± 2°C for optimal performance.