All three types share the same AAR 10 contour at the coupler mating face, ensuring full interoperability across all Saskop-equipped rolling stock.

What material and standards govern Saskop coupler manufacturing?

• Material: AAR M-201 Grade C or Grade E cast steel, quenched and tempered

• Casting identification: Letter “C” or “E” cast on product body

• Applicable standards: AAR M-118, M-211, M-215, M-216, M-201

• Fatigue test: Must pass AAR M-216 knuckle fatigue test

Who uses Saskop couplers?

Major operators: Transnet (South Africa's state rail freight operator) and PRASA (Passenger Rail Agency of South Africa) regularly tender for Saskop SS-type and MS-type couplers for wagon maintenance.

2. Technical Specifications Table:

Parameter	Specification
Product Type	Automatic knuckle coupler
Available Models	SS, MS, HS
Design Standard	AAR M-211
Material Standard	AAR M-201 Grade C / Grade E
Manufacturing Process	Alloy steel casting + quenching & tempering
Coupler Contour	AAR No. 10-A
Service Life	≥ 600,000 cycles
Operating Temperature	-34℃ ~ +121℃ (-30℉ ~ +250℉)
Interchangeable Parts	Yoke, draft gear, follower, draft key (with AAR Type E)
Primary Markets	South Africa, Botswana, Tanzania, Zambia

3. Component & Part Number Table