ND Wholesale customzied shape polyurethane pad vibration isolation pad

• Color: Fixed
• Customized: Customized
• Standard: International
• Type: Bearing
• Material: Polyurethane rubber
• Thickness: 12.5/25mm
• Model NO.: ND
• Roll: 1.5m wide, 5.0m long
• Strip: Up to 1.5m wide, up to 5.0m long
• Shape: Customized
• Transport Package: Carton
• Specification: Customized
• Trademark: THERMOTEST/OEM
• Origin: China
• Production Capacity: 50000/Month

Product Description

Product Description

Material: closed-cell PU elastomer (Polyurethane)

Color: green

Dimensions can be customized,Other dimensions, punched and moulded parts on request.

Thermotest is using "Sylodyn," a polyurethane dampening material developed by Getzner, a company with worldwide success in railroad and construction, in subway, railway, and highway soundproofing and dampening. Compared to existing dampening rubber, Sylodyn is more durable, more stable and is able to be made thinner in order to fit into small spaces, making installation quick and easy.

 

Detailed Photos

 

 

Product Parameters

 

Range of use	Compressive	Deformation
	Shape factor-dependent, the specified values apply to shape factor of q=3
Static range of use (static loads)	up to 0.35N/mm^2	approx. 10%
Dynamic range of use (dynamic loads)	up to 0.50N/mm^2	up to 17%
Load peaks (occasional, brief loads)	up to 4.2 N/MM^2	approx. 50%

Technical Data
 

Material Properties		Test Methods	Comment
Mechanical loss factor	0.08	DIN 53513 ^1	temperature-, frequency-, specific load- and amplitude-dependent
Rebound resilience	70%	EN ISO 8307 ^1
Compression hardness ^3	0.34N/mm^2	EN ISO 844^1	at 10 % linear compression, 3^rd load cycle
Compression set^2	< 5 %	EN ISO 1856 ^1	50 % deformation, 23 °C, 72 h, 30 min after removal of load
Static modulus of elasticity ^3	3.01N/mm^2		at specific load of 0.35N/mm^2
Dynamic modulus of elasticity^3	3.42N/mm^2	DIN 53513 ^1	at specific load of 0.35 N/mm^2, 10 Hz
Static shear modulus	0.38N/mm^2	DIN ISO 1827^1	at a pretension of0.35 N/mm^2
Dynamic shear modulus	0.55N/mm^2	DIN ISO 1827^1	at a pretension of 0.35 N/mm^2, 10 Hz
Min. tensile stress at rupture	2.40 N/mm^2	DIN EN ISO 527-3/5/500 ^1
Min. tensile elongation at rupture	300%	DIN EN ISO 527-3/5/500 ^1
Abrasion^2	≤ 500 mm^3	DIN IS O 4649 ^1	load10 N
Coefficient of friction (steel)	0.7	EN ISO 8295^1	dry, static friction
Coefficient of friction (concrete)	0.7	EN ISO 8295^1	dry, static friction
Coefficient of friction(wood)	0.5	EN ISO 8295^1	dry, static friction
Specific volume resistance	> 10^10 Ω·cm	EN IEC 62631-3-1 ^1	dry
Thermal conductivity	0.11 W/mK	DIN EN 12667
Temperature range	-30 °C to 70 °C		short term higher temperatures possible
Flammability	class E	EN ISO 11925-2	normal combustible, EN 13501-1

¹Measurement/evaluation in accordance with the relevant standard
² The measurement is performed on a densitydependent basis with differing test parameters
³ Values apply to shape factor q = 3

 

· Quasi-static load deflection curve measured with a loading rate of
0.035 N/mm²/s.

· Testing between flat and plane-parallel steel plates, recording of 3^rd load, with filtered starting range in accordance with ISO 844, testing at room temperature.

· Parameter: thickness of the Sylodyn® bearing

· Shape factor q = 3

· Quasi-static modulus of elasticity as tangential modulus from the load deflection curve. Dynamic modulus of elasticity from sinusoidal excitation with a velocity level of 100 dBv re. 5 · 10^-8 m/s corresponding to a vibration amplitude of 0.22 mm at 10 Hz and 0.08 mm at 30 Hz.

· Measurement in accordance with DIN 53513

· Parameter: frequency

· Shape factor q = 3

· Natural frequencies of a vibratory system with a single degree of freedome, consisting of a mass and an elastic bearing made of Sylodyn® ND on a rigid surface.

· Parameter: thickness of the Sylodyn® bearing

· Shape factor q = 3

 

· Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consisting of Sylodyn® ND based on a stiff subgrade.

· Parameter: factor of transmission in dB, isolation rate in %