Brief Introduction 
              We, SinoSi, also Specialize in producing Neodymium (NdFeB) and Ceramic magnets. They are the best source for all your magnet needs from prototype to production runs.  
              We are committed to delivering defect free products to customers and furnishe defect free products and services that conform to customers' requirements. We employ a prevention strategy of inspection to ensure conformance to requirements. Quality planning is oriented toward defect prevention rather than defect detection. Thus, the over all production process is strictly controlled.  
              We have a wide variety of standard parts, and we welcome the opportunity to quote on your specific requirements. 
              Appearance of NdFeB and Ceramic Magnets 
              Nd-Fe-B magnets 
              
              Typical Ceramic Magnets  
              
              Specifications  
              Typical Ceramic Material   
              
                
                     
                      Material  
                    Grade   | 
                  Residual  
                      Induction  
                    Br   | 
                  Coercive  
                      Force  
                    Hc   | 
                  Intrinsic  
                      Coercive  
                      Force  
                    Hci   | 
                  Maximum  
                      Energy  
                      Product  
                    BH (max)   | 
                     
                    Density   | 
                     
                      Operating  
                    Temp.   | 
                 
                
                  |        | 
                  Gauss   | 
                  Oersteds   | 
                  Oersteds   | 
                  MGOe   | 
                  g/cm 3   | 
                  o C   | 
                 
                
                  Ceramic 1   | 
                  2300   | 
                  1860   | 
                  3250   | 
                  1.05   | 
                  4.8   | 
                  450   | 
                 
                
                  Ceramic 5   | 
                  3800   | 
                  2400   | 
                  2500   | 
                  3.4   | 
                  4.8   | 
                  450   | 
                 
                
                  Ceramic 8   | 
                  3850   | 
                  2950   | 
                  3050   | 
                  3.5   | 
                  4.8   | 
                  450   | 
                 
                
                  Ceramic10   | 
                  3850   | 
                  3100   | 
                  3300   | 
                  > 3.5   | 
                  4.8   | 
                  450   | 
                 
               
                              Neodymium–Iron–Boron Magnet (Part I)  
              
                
                     | 
                     | 
                  Coercive   | 
                  Intrinsic   | 
                  Max Energy   | 
                  Operating   | 
                 
                
                  Grade   | 
                  Remanence  
                    (Br)   | 
                  Force  
                    (BHC)   | 
                  Coercive Force(iHc)   | 
                  Product  
                    BH(max)   | 
                  Temperature  
                        | 
                 
                
                     | 
                  KG (T)   | 
                  KOe (KA/m)   | 
                  KOe (KA/m)   | 
                  MGOe (KJ/m 3 )   | 
                  o C   | 
                 
                
                  N30   | 
                  10.8-11.2   | 
                  9.8-10.5   | 
                  >12 (>955)   | 
                  28-30   | 
                  < 80   | 
                 
                
                     | 
                  (1.08-1.12)   | 
                  (780-836)   | 
                     | 
                  (223-239)   | 
                     | 
                 
                
                  N33   | 
                  11.4-11.7   | 
                  10.3-11.0   | 
                  >12 (>955)   | 
                  31-33   | 
                  < 80   | 
                 
                
                     | 
                  (1.14-1.17)   | 
                  (820-876)   | 
                     | 
                  (247-263)   | 
                     | 
                 
                
                  N35   | 
                  11.7-12.1   | 
                  10.8-11.5   | 
                  >12 (>955)   | 
                  33-35   | 
                  < 80   | 
                 
                
                     | 
                  (1.17-1.21)   | 
                  (860-915)   | 
                     | 
                  (263-279)   | 
                     | 
                 
                
                  N38   | 
                  12.2-12.6   | 
                  10.8-11.5   | 
                  >12 (>955)   | 
                  36-38   | 
                  < 80   | 
                 
                
                     | 
                  (1.22-1.26)   | 
                  (860-915)   | 
                     | 
                  (287-303)   | 
                     | 
                 
                
                  N40   | 
                  12.6-12.9   | 
                  10.5-11.0   | 
                  >12 (>955)   | 
                  38-40   | 
                  < 80   | 
                 
                
                     | 
                  (1.26-1.29)   | 
                  (836-876)   | 
                     | 
                  (303-318)   | 
                     | 
                 
                
                  N43   | 
                  13.0-13.3   | 
                  10.5-11.0   | 
                  >12 (>955)   | 
                  41-43   | 
                  < 80   | 
                 
                
                     | 
                  (1.30-1.33)   | 
                  (836-876)   | 
                     | 
                  (326-342)   | 
                     | 
                 
                
                  N45   | 
                  13.3-13.7   | 
                  10.5-11.0   | 
                  >12 (>955)   | 
                  43-45   | 
                  < 80   | 
                 
                
                     | 
                  (1.33-1.37)   | 
                  (836-876)   | 
                     | 
                  (342-358)   | 
                     | 
                 
                
                  N30M   | 
                  10.8-11.2   | 
                  9.8-10.5   | 
                  >14 (>1114)   | 
                  28-30   | 
                  < 100   | 
                 
                
                     | 
                  (1.08-1.12)   | 
                  (780-836)   | 
                     | 
                  (223-239)   | 
                     | 
                 
                
                  N33M   | 
                  11.4-11.7   | 
                  10.3-11.0   | 
                  >14 (>1114)   | 
                  31-33   | 
                  < 100   | 
                 
                
                     | 
                  (1.14-1.17)   | 
                  (820-876)   | 
                     | 
                  (247-263)   | 
                     | 
                 
                
                  N35M   | 
                  11.7-12.1   | 
                  10.8-11.5   | 
                  >14 (>1114)   | 
                  33-35   | 
                  < 100   | 
                 
                
                     | 
                  (1.17-1.21)   | 
                  (860-915)   | 
                     | 
                  (263-279)   | 
                     | 
                 
                
                  N38M   | 
                  12.2-12.6   | 
                  10.8-11.5   | 
                  >14 (>1114)   | 
                  36-38   | 
                  < 100   | 
                 
                
                     | 
                  (1.22-1.26)   | 
                  (860-915)   | 
                     | 
                  (287-303)   | 
                     | 
                 
                
                  N40M   | 
                  12.6-12.9   | 
                  10.8-11.5   | 
                  >14 (>1114)   | 
                  38-40   | 
                  < 100   | 
                 
                
                     | 
                  (1.26-1.29)   | 
                  (860-915)   | 
                     | 
                  (303-318)   | 
                     | 
                 
               
              Neodymium–Iron–Boron Magnet ( Part II ) 
              
                
                     | 
                     | 
                  Coercive   | 
                  Intrinsic   | 
                  Max Energy   | 
                  Operating   | 
                 
                
                  Grade   | 
                  Remanence  
                    (Br)   | 
                  Force  
                    (BHC)   | 
                  Coercive Force(iHc)   | 
                  Product  
                    BH(max)   | 
                  Temperature  
                        | 
                 
                
                     | 
                  KG (T)   | 
                  KOe (KA/m)   | 
                  KOe (KA/m)   | 
                  MGOe (KJ/m 3 )   | 
                  o C   | 
                 
                
                  N27H   | 
                  10.2-10.6   | 
                  9.3-10.0   | 
                  >17 (>1353)   | 
                  25-27   | 
                  < 120   | 
                 
                
                     | 
                  (1.02-1.06)   | 
                  (740-796)   | 
                     | 
                  (199-215)   | 
                     | 
                 
                
                  N30H   | 
                  10.8-11.2   | 
                  9.8-10.5   | 
                  >17 (>1353)   | 
                  28-30   | 
                  < 120   | 
                 
                
                     | 
                  (1.08-1.12)   | 
                  (780-836)   | 
                     | 
                  (223-239)   | 
                     | 
                 
                
                  N33H   | 
                  11.4-11.7   | 
                  10.3-11.0   | 
                  >17 (>1353)   | 
                  31-33   | 
                  < 120   | 
                 
                
                     | 
                  (1.14-1.17)   | 
                  (820-876)   | 
                     | 
                  (247-263)   | 
                     | 
                 
                
                  N35H   | 
                  11.7-12.1   | 
                  10.8-11.5   | 
                  >17 (>1353)   | 
                  33-35   | 
                  < 120   | 
                 
                
                     | 
                  (1.17-1.21)   | 
                  (860-915)   | 
                     | 
                  (263-279)   | 
                     | 
                 
                
                  N38H   | 
                  12.2-12.6   | 
                  11.5-12.0   | 
                  >17 (>1353)   | 
                  36-38   | 
                  < 120   | 
                 
                
                     | 
                  (1.22-1.26)   | 
                  (915-955)   | 
                     | 
                  (287-303)   | 
                     | 
                 
                
                  N40H   | 
                  12.6-12.9   | 
                  11.5-12.0   | 
                  >17 (>1353)   | 
                  38-40   | 
                  < 120   | 
                 
                
                     | 
                  (1.26-1.29)   | 
                  (915-955)   | 
                     | 
                  (303-318)   | 
                     | 
                 
                
                  N27SH   | 
                  10.2-10.6   | 
                  9.3-10.0   | 
                  >20 (>1595)   | 
                  25-27   | 
                  < 150   | 
                 
                
                     | 
                  (1.02-1.06)   | 
                  (740-790)   | 
                     | 
                  (199-215)   | 
                     | 
                 
                
                  N30SH   | 
                  10.8-11.2   | 
                  9.8-10.5   | 
                  >20 (>1595)   | 
                  28-30   | 
                  < 150   | 
                 
                
                     | 
                  (1.08-1.12)   | 
                  (780-836)   | 
                     | 
                  (223-239)   | 
                     | 
                 
                
                  N33SH   | 
                  11.4-11.7   | 
                  10.3-11.0   | 
                  >20 (>1595)   | 
                  31-33   | 
                  < 150   | 
                 
                
                     | 
                  (1.14-1.17)   | 
                  (820-876)   | 
                     | 
                  (247-263)   | 
                     | 
                 
                
                  N35SH   | 
                  11.7-12.1   | 
                  10.8-11.5   | 
                  >20 (>1595)   | 
                  33-35   | 
                  < 150   | 
                 
                
                     | 
                  (1.17-1.21)   | 
                  (860-915)   | 
                     | 
                  (263-279)   | 
                     | 
                 
                
                  N25UH   | 
                  9.8-10.2   | 
                  9.2-9.6   | 
                  >25 (>1990)   | 
                  23-25   | 
                  < 180   | 
                 
                
                     | 
                  (0.98-1.02)   | 
                  (732-764)   | 
                     | 
                  (183-199)   | 
                     | 
                 
                
                  N28UH   | 
                  10.4-10.8   | 
                  9.8-10.2   | 
                  >25 (>1990)   | 
                  26-28   | 
                  < 180   | 
                 
                
                     | 
                  (1.04-1.08)   | 
                  (780-812)   | 
                     | 
                  (207-223)   | 
                     | 
                 
                
                  N30UH   | 
                  10.8-11.2   | 
                  10.1-10.6   | 
                  >25 (>1990)   | 
                  28-30   | 
                  < 180   | 
                 
                
                     | 
                  (1.08-1.12)   | 
                  (804-844)   | 
                     | 
                  (223-239)   | 
                     | 
                 
               
                 |