Description
Reviews
| Brand | - |
| Category | Root / Metal Materials & Products |
| Origin | - |
| Material Grade | QSn4-3 Tin Bronze |
| Manufacturing Process | Centrifugal Casting & Machining |
| Hardness Range | HB 70-90 |
| Tensile Strength | ≥ 295 MPa |
| Application | Injection Molding Machines |
| Customization | Non-Standard Sizes Available |
| Surface Finish | Precision Machined |
| Wear Resistance | High Durability under Load |
| Lead Time | 7-15 Days for Custom Orders |
| Quality Standard | ISO 9001 Certified Production |
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect fit for our molding machine
We ordered a set of non-standard bushings for our older injection molding equipment. The dimensions were exact, and the material quality feels very robust. Installation was smooth.
Anonymous
Mar 25, 2026
Rating: 4/5
Good wear resistance
These QSn4-3 bushings have been running in our high-cycle machine for three months now with no signs of excessive wear. Slightly longer lead time than expected, but worth the wait.
Anonymous
Mar 24, 2026
Rating: 5/5
Great value for non-standard parts
Finding custom copper sleeves at this price point without sacrificing quality is rare. They have held up well under continuous operation in our factory environment.
Anonymous
Mar 19, 2026
Rating: 5/5
Excellent custom manufacturing
Our engineering team needed a specific sleeve size that isn't off-the-shelf. The manufacturer handled the custom specs perfectly. The bronze quality is consistent throughout.
Anonymous
Mar 18, 2026
Rating: 4/5
Solid product, good packaging
The bushings arrived well-packaged to prevent any damage during shipping. Material certification was included. One minor burr on the edge was easily filed down, otherwise perfect.
Anonymous
Mar 13, 2026
Rating: 5/5
Reliable industrial component
Replaced our worn-out sleeves with these tin bronze bushings. The noise level in the machine has decreased, and operation is smoother. Highly recommend for heavy-duty use.
Q: Is the QSn4-3 material suitable for high-temperature environments?
A: QSn4-3 tin bronze offers good thermal conductivity and maintains structural integrity at moderate elevated temperatures typical in molding applications, though we recommend checking specific operating limits for your setup.
Q: Can you produce bushings with inner diameters larger than 200mm?
A: Yes, we specialize in non-standard copper sleeves and can manufacture sizes well beyond 200mm based on your technical drawings.
Q: What is the typical lead time for a batch of 50 custom bushings?
A: For a quantity of 50 custom units, the standard production lead time is approximately 10 to 12 working days after drawing approval.
Q: What tolerance levels can you achieve on the inner diameter?
A: We can typically achieve IT7 to IT8 tolerance grades on inner diameters depending on the specific size and requirements outlined in your order.
Q: Do you provide material test reports with the shipment?
A: Absolutely. Every batch comes with a full material test report detailing chemical composition and mechanical properties to ensure compliance with standards.
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