Versatile Subway Train Shock Absorber, Custom Specs up to 500 Centimeters

• 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 rubber absorber stands as a vital piece of equipment designed to elegantly transform mechanical vibration kinetic energy into heat energy. This transformation is seamlessly managed through the remarkable high elastic deformation properties inherent in the rubber material, ensuring a smooth and efficient absorption process.
Its core functions encompass a range of vital operations:
1. Energy Dissipation: Expertly dissipating vibration energy through a sophisticated blend of viscous shear and elastic hysteresis effects, ensuring that mechanical vibrations are efficiently managed.
2. Momentum Isolation: This function adeptly interrupts the vibration transmission path, effectively minimizing the risk of system resonance and maintaining system stability.
3. Buffer Protection: It provides superior shock load absorption, significantly extending the service life of the equipment by safeguarding against wear and tear.
Ningbo Zhongmu Rubber Products Co., Ltd is unwavering in its commitment to the development of both current and innovative products. The company promises customers exceptional, high-performance isolation solutions that stand at the forefront of technology.

1.Typical Construct Type Comparison: A thorough analysis comparing different construction types to identify the most effective design for specific 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 exploration into the traditional structures and their diverse classifications to better understand their applications.

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 comprehensive system designed to guide the selection of the most suitable materials for optimal performance.

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: Defined standards and testing range to ensure global compliance and quality assurance.

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: Insightful analysis and enhancements geared towards mitigating failure modes, ensuring structural integrity and durability.

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: Diverse application scenarios and corresponding product types to meet various industry needs.

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: A detailed guide to the manufacturing process flow, ensuring efficiency and quality at every step.
1.Material Premixing: A critical stage where materials are meticulously pre-mixed to ensure homogeneity.
Hot Feeding System: Precise temperature control to ± 1°C, ensuring material uniformity for consistent quality.
Fiber Dispersion: Achieving 95% dispersion, as verified by laser particle size analysis, to ensure optimal material characteristics.
2.Molding Process: Involves precise and controlled methods to shape materials into desired forms.
Compression Molding: Set at a meticulous mold temperature of 60°C, a pressure of 15MPa, with a pressure holding time of 30 minutes to ensure perfect molding.
Injection Molding: Operates at a screw speed of 50 to 100 rpm, with an injection temperature range of 80 to 120°C, accommodating various material needs.
Vacuum Vulcanization: Conducted at a pressure of 0.95MPa and a temperature of 150°C over 60 minutes, ensuring robust and reliable vulcanization.
3.Reprocessing: Further refining materials for enhanced performance and durability.
Surface Treatment: Applies a polyurethane anti-fouling coating of 0.2mm thickness, providing exceptional surface protection.
Performance Optimization: Utilizes microwave vulcanization to achieve a 40% efficiency improvement, with temperature variance maintained at ± 2°C for optimal performance.