Graphite Brass Sleeve are designed and used for punching mould, and it is put into the bushing, to make sure bushing work smoothly. Such design also makes the bushing free-oil. The die cooper sleeves are mainly processed by CNC machines, make sure the high quality and good precision. They are much better service for punching dies. We believe more and more customers will choose such sleeves to serve their dies.
1） Substrate material: CuZn24AL6
2） The matrix hardness: HB230-270
3） The coefficient of friction: < 0.16
4） The highest use temperature: 300 °C
-40°C to+ 110°C
Oil continued to
Coefficient of thermal expansion
Initial assembly must be painted in the oil hold in the grease
1. Reply inquiry in 24 hours.
2. Please kindly inform us which items you are interested & the reasonable price will be provided you upon receipt of your new inquiry ASAP.
3. Answer your question detailed.
4. Solved the problem with you during using our products.
5. Samples will be offered to you for our future cooperation.
If you are interested in our designa nd service, please contact with us as following :