
Polyurethane Shock Absorber
Polyurethane shock absorbers are devices that utilize the properties of polyurethane materials to absorb and reduce vibration functions. Polyurethane is a polymer material with excellent properties such as high strength, high elasticity, abrasion resistance, oil resistance, etc., which makes polyurethane shock absorbers widely used in many fields.
Polyurethane Shock Absorber Suppliers







Advantage of Polyurethane Vibration Damping
Compared to traditional shock absorbers, our polyurethane shock absorbers are lightweight, strong, resistant to wear and tear, oil resistant, and have excellent low and high temperature performance. These characteristics make it stable in a variety of complex environments and provide reliable damping.
Polyurethane Vibration Isolators Application
- Automotive industry;
- Industrial machinery;
- Electronics;
- Aerospace and defense;

Custom Polyurethane Shock Absorber
- Product Specifications
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We offer a wide range of polyurethane shock absorbers, including spring-loaded, rubber-metal composite, hydraulic, and more, so no matter what kind of vibration damping solution you need, you'll find the right product here.
At the same time, we realize that each customer's needs are unique. We are able to customize a polyurethane shock absorber solution that is tailored to your specific requirements. From special dimensions to unique performance requirements, we can meet your individual needs.
Here are our different series,polyurethane formulas, and performance table of polyurethane products.
Polyester polyol/TDI series prepolymer
Model | D3136 | D3145 | D3160 |
NCO content / % | 3.6±0.1 | 4.5±0.2 | 6.0±0.2 |
State of matter At 20℃ | White waxy solid | White waxy solid | White waxy solid |
MOCA 100g prepolymer dosage /g | 10.5 | 13.2 | 17.2 |
Viscosity(85℃)/ mpa * s | 1800 | 1200 | 900 |
Mixing Temperature /℃(prepolymer/MOCA) | 85/120 | 80/120 | 75/120 |
Gel time /min | 9 | 7.5 | 5 |
Post vulcanization time (100℃)/h | 10 | 10 | 10 |
Hardness ( shore A) | 85±1 | 91±1 | 96A±1 (54D) |
100% constant tensile stress /MPa | 4.2 | 6.7 | 11.5 |
300% constant tensile stress /MPa | 8.3 | 12.5 | 21.3 |
Tensile strength /MPa | 48 | 52 | 55 |
Elongation at break / % | 670 | 610 | 530 |
Tear strength (right angle) /(KN/m) | 75 | 95 | 124 |
Tear strength (pants type) /(KN/m) | 34 | 42 | 49 |
Rebound /% | 39 | 32 | 33 |
Density (25℃)/(g/cm) | 1.26 | 1.27 | 1.29 |
wearing out by friction mm³ | 40 | 48 | 57 |
Polyether polyols PTMG series prepolymer
Model | D2135 | D2142 | D3160 |
NCO content / % | 35±0.1 | 4.2±0.2 | 6.2±0.2 |
State of matter At 20℃ | White waxy solid | White waxy solid | White waxy solid |
MOCA 100g prepolymer dosage /g | 10 | 12.1 | 18 |
Viscosity(85℃)/ mpa * s | 1200 | 750 | 480 |
Mixing Temperature /℃(prepolymer/MOCA) | 85/120 | 85/120 | 80/120 |
Gel time /min | 11 | 10 | 6 |
Post vulcanization time (100℃)/h | 10 | 10 | 10 |
Hardness ( shore A) | 85±2 | 90±1 | 95A±1 (49D±2) |
100% constant tensile stress /MPa | 5.4 | 7.5 | 12.8 |
300% constant tensile stress /MPa | 9.6 | 14.1 | 36.3 |
Tensile strength /MPa | 27 | 33 | 48 |
Elongation at break / % | 550 | 500 | 350 |
Tear strength (right angle) /(KN/m) | 65 | 78 | 95 |
Tear strength (pants type) /(KN/m) | 21 | 28 | 33 |
Rebound /% | 61 | 54 | 47 |
Density (25℃)/(g/cm) | 1.07 | 1.09 | 1.13 |
MDI series prepolymer
Model | D3560M |
NCO content / % | 6.0 |
Viscosity(80℃)/ mpa * s | 1780 |
D3560M : D3575-C | 100:6.1 |
Gel time /min | 8-11 |
Post vulcanization time (100℃)/h | 48 |
Hardness ( shore A) | 83±3 |
Tensile strength /MPa | 46 |
Elongation at break / % | 580 |
Tear strength (right angle) /(KN/m) | 82 |
Rebound /% | 38 |
Density (25℃)/(g/cm) | 1.2 |








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Polyurethane Shock Absorber Manufacturers
We have a wide range of polyurethane molding processes to choose from, and can select an economically viable production method that is more suitable for you based on the quantity of your order and your specific requirements. From the purchase of raw materials to the final shipment of products, each step is strictly inspected. We ensure the dimensional accuracy and quality stability of our products to provide you with high quality polyurethane shock absorbers.
Polyurethane shock absorbers have many advantages. They are lightweight, which effectively reduces the overall weight of the equipment; high strength, which allows them to withstand high pressures and impacts; excellent resistance to wear and tear, which prolongs their service life; oil-resistant, which makes them suitable for use in oil-contaminated environments; and they maintain good performance at high and low temperatures, which makes them adaptable to a wide range of complex working conditions.
The service life of polyurethane shock absorbers is affected by many factors, such as the use of the environment, load conditions, frequency of use and so on. Under normal use and maintenance conditions, they can generally be used for about [2-3] years.
First, you need to contact our sales team or technical support staff to explain your customization needs in detail, including size, performance requirements, application scenarios and other information. Our team will evaluate your needs and give you a preliminary proposal and quotation. If you approve the proposal and price, we will enter the design and production stage, and we will also keep communicating with you during the production process to ensure that the product meets your expectations and finally deliver the product on time.
The price depends mainly on the type of product, specifications, customization requirements and order quantity. You can provide us with specific requirements and our sales team will calculate the exact price for you based on this information.
For custom urethane shock absorber, the delivery time will depend on the complexity of the product. We will give you a specific delivery time estimate when we communicate with you about the customized solution and ensure that it will be delivered on time.