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factory Outlets for Production Machining - CMC CuMoCu Heat Sink – Fotma Detail:
CMC CuMoCu Material Application
Low Expansion Layers and Thermal Paths for Heat Sinks, Lead Frames, Multi-layer Printed Circuit Boards (PCBs), etc.
Heat sink material on aircraft, heat sink material on radar.

CMC Heat Sink Advantages
1. CMC composite adopts a new process, multilayer copper-molybdenum-copper, the bonding between copper and molybdenum is tight, there is no gap, and there will be no interface oxidation during subsequent hot rolling and heating, so that the bonding strength between molybdenum and copper is excellent, So that the finished material has the lowest thermal expansion coefficient and the best thermal conductivity;
2. The molybdenum-copper ratio of CMC is very good, and the deviation of each layer is controlled within 10%; SCMC material is a multi-layer composite material. The structural composition of the material from top to bottom is: copper sheet – molybdenum sheet – copper sheet – molybdenum sheet… copper sheet, it can be composed of 5 layers, 7 layers or even more layers. Compared with CMC, SCMC will have the lowest thermal expansion coefficient and the highest thermal conductivity.

Grade of CMC Cu-Mo-Cu Materials
Grade |
Density g/cm3 |
Coefficient of thermal Expansion ×10-6 (20℃) |
Thermal conductivity W/(M·K) |
CMC111 |
9.32 |
8.8 |
305(XY)/250(Z) |
CMC121 |
9.54 |
7.8 |
260(XY)/210(Z) |
CMC131 |
9.66 |
6.8 |
244(XY)/190(Z) |
CMC141 |
9.75 |
6 |
220(XY)/180(Z) |
CMC13/74/13 |
9.88 |
5.6 |
200(XY)/170(Z) |
Material |
Wt% Molybdenum Content |
g/cm3 Density |
Thermal conductivity at 25℃ |
Coefficient of thermal Expansion at 25℃ |
S-CMC |
5 |
9.0 |
362 |
14.8 |
10 |
9.0 |
335 |
11.8 |
13.3 |
9.1 |
320 |
10.9 |
20 |
9.2 |
291 |
7.4 |
Product detail pictures:
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We constantly think and practice corresponding to the change of circumstance, and grow up. We aim at the achievement of a richer mind and body along with the living for factory Outlets for Production Machining - CMC CuMoCu Heat Sink – Fotma , The product will supply to all over the world, such as: Azerbaijan, Yemen, Madagascar, We have more than 200 staff including experienced managers, creative designers, sophisticated engineers and skilled workers. Through hard work of all employees for the past 20 years own company grew stronger and stronger. We always apply the "client first" principle. We also always fulfill all contracts to the point and therefore enjoy excellent reputation and trust among our customers. You are very welcome to personally visit our company.We hope to start a business partnership on the basis of mutual benefit and successful development . For more information please do no hesitate to contact us..