SHAH ENGINEERING WORKS

 

Carbon Current Collectors:

SEW Carbon Products, Inc distributes carbon current collectors made by Pantrac; a joint-venture company of SEW Carbon. Pantrac uses carbon profiles produced by SGL Carbon GmBh Werk Ringsdorff. Visit Pantrac's website at: www.pantrac.com

 

Pantrac Carbon Current Collectors have the following advantages:

Reliability and low Life-Cycle-Cost
Low wear rate carbon grades RH84 and RH83M6
Lead free metalized carbon grades for high current load applications RH84M6,
  RH83M6, RH85M6
Bond between carrier and carbon profile is by an electrically conductive glue
  
Pantrac’s supplies Carbon Current Collectors to:
  
Deutsche Bahn
British Railways
MTRC Hong Kong
Bombardier Transportation
  
 
Typical properties of our most important carbon grades for carbon current collectors:

Grade
Density
Resistivity
Hardness
Flexural strength
Impregnationg 
g/ccm
Ωmtand . m 
HRB 5/150150 
N/mm2it N/mm2 
RH 84 
1,73
34
95
37
 
RH 84 M6 
2,4
12
115
65
Cu Sn* 
RH 83 M6 
2,8
7
110
95
Cu Sn* 
RH 85 M6 
3,4
4
105
105
Cu Sn* 

*Cu Sn impregnation up to profile length of 1.150 mm

Typical performance data:
   
 
Shear strength of the bond: > 5 N/mm2
Temperature resistance up to 250C (rated value), up to 300C (≤ 1min.)
Short- circuit current load up to 30 kA (tested with AC 16 2/3 Hz, half wave)
Contact resistance between carbon profile/Al-carrier
 
< 1,0 mΩ (plain carbon)
 
 
< 0,5 mΩ (metallized carbon)
Current carrying capacity
Grade RH 84:
 
5 – 6 A/mm contact line
Grade RH 83 M6 (metallized):
 
12 –14 A/mm contact line
Grade RH 85 M6 (metallized):
 
16 –18 A/mm contact line
 
 
Top Values For Service Life:
 
 
  RH 84: Light Railways 120 - 200 Tkm  
    Long distance trains 140 - 150 Tkm  
    High speed trains (ICE) 180 - 220 Tkm  
  RH 83 M6 (High current appl.):    
    Light Railways   60 - 100 Tkm  
    Long distance trains 120 - 140 Tkm  
  RH 85 M6 (Very high current appl.):    
    E.M.U. 70 - 90 Tkm