Description
Reviews
| Brand | - |
| Category | Root / Metal Materials & Products |
| Origin | - |
| Material Grade | QSn4-3 Tin Bronze |
| Primary Application | Injection Molding Machines |
| Key Feature | High Wear Resistance |
| Customization | Non-Standard Sizes Available |
| Manufacturing Process | Precision Cast and Machined |
| Surface Finish | Smooth Polished Bore |
| Hardness Range | HB 90-120 |
| Tolerance Standard | ISO H7/g6 |
| Lead Time | 7-15 Days for Custom Orders |
| Quality Certification | ISO 9001:2015 Compliant |
Anonymous
Mar 28, 2026
Rating: 5/5
Excellent durability
These sleeves have been running in high-friction environments for three months now with zero signs of degradation. The material consistency is top-notch.
Anonymous
Mar 27, 2026
Rating: 5/5
Cost-effective solution
Compared to OEM parts, these are much more affordable without sacrificing quality. Our maintenance team is very satisfied with the performance.
Anonymous
Mar 27, 2026
Rating: 4/5
Good quality, slight delay in shipping
The QSn4-3 bronze quality is excellent and matches our specifications perfectly. The only reason for 4 stars is that the custom order took a few days longer than initially estimated.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect fit for our molding line
We ordered custom sleeves for our older injection molding machines. The dimensions were exact, and the wear resistance has significantly reduced our downtime. Highly recommended for industrial use.
Anonymous
Mar 11, 2026
Rating: 4/5
Solid industrial component
Very robust sleeves. We use them in heavy-duty applications. The surface finish is smooth which helps with lubrication. Would buy again.
Anonymous
Mar 11, 2026
Rating: 5/5
Great support for non-standard parts
Finding non-standard sleeves is usually a nightmare, but this manufacturer handled our unique drawings professionally. The final product fits like a glove.
Q: Can you manufacture sleeves based on a specific CAD drawing we provide?
A: Yes, we specialize in non-standard custom sleeves. Please send your CAD files or detailed dimension sheets, and our engineering team will review them for feasibility and provide a quote.
Q: Do you provide material certification with the shipment?
A: Absolutely. Every batch comes with a Mill Test Certificate (MTC) detailing the chemical composition and mechanical test results to ensure compliance with standards.
Q: What is the maximum operating temperature for the QSn4-3 material?
A: QSn4-3 tin bronze generally maintains its mechanical properties up to approximately 250°C (482°F). For specific high-temperature applications, please consult our technical team.
Q: What is the typical lead time for a batch of 50 custom sleeves?
A: For a quantity of 50 custom units, the typical production lead time is between 10 to 14 business days, depending on the complexity of the machining required.
Q: Are these sleeves suitable for continuous high-speed rotation?
A: Yes, QSn4-3 is designed for good sliding properties and wear resistance under load. However, proper lubrication is essential for continuous high-speed operations to maximize lifespan.
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