Small Curve Radius Coupler

This coupler is AAR H type and conforms to small curve radius of railway lines. It has the Number 10-A contour at coupler mating lines and is

used in railway lines with a radius of 60m. Small Curve Radius Coupler is extensively used in the Southeast Asia, South America and some

other regions.

  • Material: Grade E steel
  • Coupler head length: 254mm
  • Coupler shank length: 673mm
  • Structure of coupler tail: double shank tail
  • Coupler swing angle: ≥±19 °
  • Coupler shank strength: ≥2600KN



Small Curve Radius Coupler-Small Radius Coupler-Haiduo Railway-Home
S.N. Description Drawing No. Material Standard Remark
1 Coupler Assy HD002-01-00   AAR  
2 Draft Gear HD002-02-00 Rubber Spring AAR  
3 Coupler Yoke HD002-03-00 Grade E AAR  
4 Draft Key HD002-04-00 40Mn2 AAR  
5 Follower HD002-05-00 Grade E AAR  
6 Wear Plate HD002-06-00 27 SiMn AAR  
7 Bolt GB/T5728 Grade 10.96    
8 Nut GB/T6170 Grade 10    

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