Choose the Right Supplier to Ensure Equipment Stability and Long-Term Efficiency
In silent hydraulic breakers, polyurethane (PU) components are not just about damping and noise reduction—they play a direct role in equipment lifespan, operational stability, and maintenance costs. Choosing a supplier solely based on price is risky. Instead, the value lies in the material performance behind the numbers.
Before making a purchasing decision, make sure to ask your PU supplier these 5 essential questions. They’ll help you identify whether you’re working with a true material solution partner—or just a parts vendor.
✅ Question 1: What PU hardness do you recommend, and why?
If a supplier says, “We’ll make whatever hardness you want,” that’s a red flag. It usually means they don’t understand either the material characteristics or your equipment’s requirements—and therefore can’t provide real engineering value.
Different parts of a breaker experience different loads and stresses. Choosing the correct Shore A hardness (typically between 80A and 98A) requires a clear understanding of your working environment—impact force, vibration frequency, temperature, and mounting constraints.
Wrong hardness leads to:
Poor damping effect
Cracking or deformation under load
Unstable operation
Frequent replacements and high maintenance costs
✅ Question 2: Do you offer custom manufacturing or only standard parts?
High-end hydraulic breakers typically require non-standard, custom-shaped parts. Custom PU parts are critical for:
Perfect assembly fit
Optimal vibration absorption
Longer service life under extreme working conditions
If a supplier only offers standard parts or cannot meet tight tolerance drawings, it’s a sign of limited technical capability.
Bottom Line: Custom parts = higher reliability + better performance
✅ Question 3: What PU system and production process do you use?
There are multiple PU systems (polyether, polyester, polycarbonate) and processing methods (CPU, TPU, spraying), and each has distinct performance profiles.
CPU offers superior tear strength, abrasion resistance, and fatigue life, ideal for high-frequency impact applications.
TPU may be suitable for light-duty parts.
Ask clearly about the system and process to avoid mismatches that may result in short service life or functional failure.
✅ Question 4: What quality control and testing procedures do you follow?
A trustworthy PU supplier should have a complete QC system, including:
Raw material inspection
Final product testing
Full traceability and factory inspection records
Tip: Ask for testing reports and client references—especially from major OEMs. If a supplier has passed audits by top-tier manufacturers, they are unlikely to deliver substandard parts.
✅ Question 5: Do you provide technical support and after-sales service?
PU performance can degrade under unexpected changes in load, environment, or frequency. A good supplier will:
Offer installation guidance
Analyze wear issues
Adjust formulas based on real use to maximize fit and longevity
What you need is not just a “supplier,” but a material solution partner who supports your entire operation lifecycle.
✅ Final Thought: You’re not just buying a part—you’re buying reliability
A polyurethane component may seem small, but it plays a massive role in hydraulic breaker performance. By asking these 5 questions, you’re not just managing cost—you’re investing in efficiency, safety, and long-term uptime.
Want free technical advice? Contact our team!
Kubis tech Ltd,With 18 years of experience in custom polyurethane manufacturing, we proudly supply dampers, wear pads, and PU components for top global breaker brands.
Send your drawings or technical requirements to: l.tian@kubis-tech.com
