We are a well-known China manufacturer and supplier of custom polyurethane dampers engineered for optimal shock absorption and vibration control. Our cast PUR dampers are made from high-grade polyurethane, offering 30% better energy dissipation than rubber while resisting oils, solvents, and abrasion. Each unit undergoes rigorous testing to ensure consistent performance .
These dampers serve industries including automotive, material handling, robotics, mining and quarrying. They’re essential for stabilizing machinery, reducing operational noise, and extending equipment lifespan in both indoor facilities and outdoor worksites.
Customization Options:
Parameter
Options / Ranges
Typical Equipment & Application
Shore Hardness (A)
30A – 95A / Custom
soft PUR damper for delicate electronics, hard one for heavy conveyor impacts
Part Diameter / Length
Custom to drawing (mm/inch)
conveyor curve impact zones
Mounting Style
Threaded stud, bonded metal insert, flange
vibration isolator with bonded insert for motor mounts
Compound Type
Standard, heat-resistant, oil-resistant, ESD
heat-resistant polyurethane damper for high-temperature conveyor rollers
Load Rating
Up to 10,000 N / Custom
heavy-duty damper for mining crusher applications
Surface Finish
Smooth, grooved, knurled
non-marking damper pads for automotive door stops
Color / Identification
Black, red, custom color bands
color-coded dampers for automation line stations
Quantity / MOQ
Prototype to bulk production
low-volume custom cast polyurethane dampers for OEM validation
Application of Polyurethane Dampers
- Automotive suspension systems to reduce road vibration.
- Conveyor impact pads and sorter stops in logistics centers
- Robot arm end-of-arm damping in automation lines
- Dock bumpers and pallet stop buffers in warehousing
Crusher mounts and chute liners in mining operations
- Valve and actuator dampers in oil and gas facilities
- Calender roll shock pads in paper and pulp plants
- Transmission buffers and gearbox bumpers in machinery
- Elevator buffer cushions and lift safety stops
- Packaging machine shock absorbers and indexing stops
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Advantages of Polyurethane Gears & Sprockets
- Resists deformation under continuous load, ensuring long-term stability.
- High energy return and controlled damping tuneable via Shore hardness.
- Excellent resistance to oils, greases, solvents, and many chemicals.
- Low compression set maintains geometry after repeated loading cycles.
- Wide temperature range options including heat-resistant formulations.
- Non-marking surfaces protect painted and delicate components during contact.
- Simple bonding to metal inserts enables secure mounting and faster assembly.
- Reduces machinery noise by up to 40%, improving workplace safety.
- Cost-effective replacement for rubber and plastic alternatives with lower lifecycle costs.
Why Choose Our Polyurethane Dampers?
- Custom cast capability ensures exact fit for your equipment drawings.
- China manufacturer pricing with global quality control and traceability.
- Fast prototyping from easy PU tooling to production-grade molds.
- Formulation expertise allows tailored PU damper compounds for your use case.
- Comprehensive testing: hardness, tensile, tear, and compression set verification.
- Support for bonded metal inserts and pre-assembled damper units.
- Flexible order sizes from single prototypes to high-volume supply.
- Reliable lead times and secure international shipping options.
- Application engineering help to select optimal damper geometry and hardness.
What is a polyurethane damper and how does it differ from rubber?
A polyurethane damper is a cast elastomer component that absorbs impact and vibration. Compared to rubber, polyurethane offers much higher abrasion resistance, lower compression set, and better load-bearing capacity.
Can you produce a PU damper to match my drawing or sample?
Yes. We specialize in custom cast polyurethane dampers made to customer drawings or samples, including bonded inserts and threaded mounts.
How do I choose the right Shore hardness for my damper?
Hardness depends on impact energy, required stroke, and equipment mass. We provide application consultation and sample testing to determine the best Shore A value.
What is the typical lead time for custom dampers?
Prototyping can take 1–3 weeks depending on tooling; production lead times vary with quantity but commonly range from 2–6 weeks.
How do polyurethane dampers perform in outdoor or corrosive environments?
Standard polyurethane offers good weather resistance; additives improve UV, oil, or chemical resistance for harsh outdoor and corrosive conditions.
Are you a manufacturer?
Yes. We are manufacturer. Welcome to visit our factory.
Can you introduce your customized process ?
Yes. The process includes Share needs → design & quote → prototype (opt) → production → delivery.
How do you control your product quality?
We have 10 inspectors to carry out raw material inspection, process control ,first article inspection and final inspection.
How do you monitor the production process to avoid delayed delivery?
We use the ERP system to execute orders, and can check the order status and expected delivery time at any time.
What is warranty of products?
All of products with 3-6 months guarantee (except very frequently wearing parts).
How do you deal with after sales service?
We will response in 24 hours with solutions such as replacement or reworking.
How do you deal wtih customers' molds?
We have dedicated personnel to sort out and maintain molds regularly.
What about the lifespan of molds?
20,000 times for compressions molds and 30,000 time for casting molds
How long can you keep customers' molds for free?
Due to the large quantity of molds, we can keep the molds for free for 2 to 3 years even if no order.
If the molds are damaged or reach the lifespan , who will be responsible for it ?
Customers only need to pay mold cost once. We will cover the cost if molds are damaged or reach the lifespan.
