As a reliable China manufacturer and supplier of polyurethane silent blocks, we specialize in custom cast PU silent blocks designed for superior vibration damping and noise reduction. Our products are produced from high-grade polyurethane. The superior material properties of our polyurethane blocks provide enhanced resistance to wear, oil, and environmental factors, outperforming traditional rubber components.
Polyurethane silent blocks serve a wide range of industries, including automotive, heavy machinery, construction, agriculture, and marine. They are critical for isolating vibration in vehicle suspension systems, tractor chassis, industrial equipment mounts, and ship engine components, enhancing safety and extending equipment lifespan..
Customization Options:
Custom Parameter
Description
Typical Use Cases
Hardness (Shore A)
Range from 60A to 90A for tailored damping
Off-road vehicles, industrial machines
Size & Shape
Custom dimensions and geometric configurations
Construction machinery, agricultural equipment
Color
Standard and custom colors available
OEM branding, easy identification
Insert Material
Carbon steel/stainless steel/metal inserts with Zinc coating
For heavy-duty industrial machine mounts, heavy-duty trucks, engine mounts
Environmental Resistance
Oil, UV, and chemical resistant formulations
Mining equipment, outdoor industrial devices
Application of Polyurethane Silent Blocks
- Vibration reduction in automotive suspension systems
- Noise dampening in construction equipment controls
- Shock absorption for agricultural machinery frames
- Isolation mounts in industrial compressors
- Anti-vibration pads for heavy-duty trucks
Advantages of Polyurethane Silent Blocks
- Superior vibration isolation vs rubber silent blocks in heavy-load use
- Resists deformation and wear in oil/grease-rich automotive environments
- Maintains flexibility across extreme temperature ranges (-40°C to 120°C)
- Reduces equipment noise by up to 50% for safer workspaces
- Custom cast designs eliminate fitment issues for OEM replacements
- Corrosion-proof and UV-resistant for outdoor industrial applications
Why PU Silent Blocks Deliver Long-Term Value Than Rubber?
When evaluating polyurethane silent blocks vs. traditional rubber, value lies in lifecycle cost—not upfront price.
PU silent blocks have a slightly higher initial cost but 2-3x longer service life, cutting replacement frequency.
For fleets, industrial sites, and farms, this means fewer maintenance hours and less equipment downtime.
Our custom cast PU silent blocks resist wear and oil degradation, eliminating recurring rubber replacement costs.
A typical industrial customer sees 40% lower annual maintenance costs for vibration control components.
The initial PU premium is recouped within 12-18 months, delivering superior long-term savings.
What industries most commonly use polyurethane silent blocks?
They are widely used in automotive, construction, agricultural, and industrial machinery sectors.
What hardness is best for automotive suspension silent blocks?
Polyurethane blocks offer better durability, resistance to oils, chemicals, and environmental wear, and improved vibration isolation.
What hardness is best for automotive suspension silent blocks?
We recommend 60A-70A Shore hardness for automotive suspension, balancing flexibility and load capacity.
Can metal-inserted PU silent blocks handle heavy industrial loads?
Our steel-inserted silent blocks support loads up to 5000kg, ideal for construction and mining machinery.
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 with 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.
