The JCB JRCD series of diamond shaped material is processed from crushed material JCD through shaping and other techniques. This product features regular crystal shapes, nearly isometric elliptical or spherical particles, low impurity content, low magnetism, and a rough surface. The JCB JRCD series of diamond shaped material is primarily used in the production of ceramic bond, metal bond, and electroplated bond diamond grinding wheels, diamond grinding discs, diamond grinding blocks, and other diamond grinding tools. Compared to the JCB JRCD series crushed material, it offers higher strength and better wear resistance. Compared to original single crystal fine materials, it provides excellent cost-effectiveness and grinding performance.
![]() | JRCD-A Features: Processed from JCD-A through shaping and other techniques, this product boasts regular crystal shapes, nearly isometric oval or spherical particles, low impurities, low magnetism, and a rough surface. Applications: Primarily used in the production of heavy-duty ceramic bonded grinding tools, medium-load metal bonded grinding tools, and electroplated grinding tools, suited for machining non-metals such as glass, ceramics, and stone. Offers higher strength and better wear resistance compared to JCD-A, and excellent economy and grinding properties compared to primary mono-crystalline fine powder JSD30. |
![]() | JRCD-B Features: Derived from JCD-B through shaping and similar processes, it presents with uniform crystal structures, near-isometric oval or spherical grains, minimal impurities, low magnetic response, and a coarse surface. Applications: Mainly utilized in the manufacturing of medium-load ceramic and metal bonded grinding tools, as well as electroplated tools, ideal for non-metallic materials like glass, ceramics, and stone. Outperforms JCD-B in terms of strength and wear resistance, and provides favorable economics and grinding efficiency when compared to native single crystal fine powder JSD20. |
![]() | JRCD-C Features: Manufactured based on JCD-C through and additional procedures, it exhibits consistent crystal patterns, particles resembling isometric ovals or spheres, low levels of contaminants, negligible magnetism, and a roughened exterior. Applications: Suited primarily for heavy-resin bonded, medium-ceramic bonded, and light-metal bonded grinding tools, effectively processing gems, glass, optical glass, ceramics, stone, among other non-metals. Offers enhanced strength and wear resistance over JCD-C, and represents a cost-effective and efficient alternative to original mono-crystal fine powder JSD10. |
Grain Size Designation | 50/60 | 60/70 | 70/80 | 80/100 | 100/120 | 120/140 | 140/170 |
JRCD-A | Y | Y | Y | Y | Y | Y | Y |
JRCD-B | Y | Y | Y | Y | Y | Y | Y |
JRCD-C | Y | Y | Y | Y | Y | Y | Y |
Grain Size Designation | 170/200 | 200/230 | 230/270 | 270/325 | 325/400 | 400/500 | 500/600 |
JRCD-A | Y | Y | Y | Y | Y | Y | Y |
JRCD-B | Y | Y | Y | Y | Y | Y | Y |
JRCD-C | Y | Y | Y | Y | Y | Y | Y |
JCB GB/T6406-1995 | USA ANSI US Mesh # | European Union FEPA D | International Standard ISO | Russia GOST9206-80 |
50/60 | 50/60 | D301 | 300/250 | 315/250 |
60/70 | 60/70 | D251 | 250/212 | 250/200 |
70/80 | 70/80 | D213 | 212/180 | |
80/100 | 80/100 | D181 | 180/150 | 200/160 |
100/120 | 100/120 | D151 | 150/125 | 160/125 |
120/140 | 120/140 | D126 | 125/106 | 125/100 |
140/170 | 140/170 | D107 | 106/90 | 100/80 |
170/200 | 170/200 | D91 | 90/75 | |
200/230 | 200/230 | D76 | 75/63 | 80/63 |
230/270 | 230/270 | D64 | 63/53 | 63/50 |
270/325 | 270/325 | D54 | 53/45 | 50/40 |
325/400 | 325/400 | D46 | 45/38 | 45/38 |
400/500 | 400/500 | D39 | 38/32 | 38/30 |
500/600 | 500/600 | D33 | 32/26 | 30/20 |