








The steel casting coupler knuckle is a critical component in railway car connectors, responsible for securely joining rolling stock while enduring immense tensile forces, compression loads, and impact shocks during operation. Forged from high-strength alloy steel, it delivers exceptional toughness, wear resistance, and fatigue durability to withstand heavy-haul freight, high-speed passenger trains, and harsh track conditions.
| Accurate in reading drawings & Fast in delivery & Exact dimension control & 100% quality control & OEM Service & Strict material inspection & Prompt quote & lead time guarantee | |
| 1. Product Name: | Coupler Knuckle |
| 2. Material: | Carbon Steel, Alloy Steel, Stainless Steel, Manganese steel, etc |
| 3. Material Standard: | ASTM,AISI,ASME,SAE,NF EN,DIN EN,ISO,,BS EN,SS,etc. |
| 4. Items: | FOB Ningbo or Shanghai,China |
| 5. Lead time: | 30~40 days |
| 6. Place of origin | Ningbo, China |
| 7. Software for specification drawings: | PDF, Auto CAD, Solidworks, JPG, ProE,etc. |
| 8. Main production equipments: | Wax injection, CNC-machine-center, Lathe, Milling machine,Drilling machine,Boring Lathe,Grinding Machine, Heat treatment Furnace. |
| 9. Heat Treatment Machine: | Mesh-Belt-Furnace,Carburizing Quench Furnace,Chamer Furnace,etc. |
| 10. Surface Treatment: | Cold/Hot Zn Plating,Blackening Treatment(Salt Spray Test 48-96 hours),Ni Plating,Cr Plating,Spraying Undercoat,Anti-Rust Paint,Surface Paint,Plastic Paint,Coated Anti-Rust Water,Anti-oil,etc. |
| 11. Surface Heat Treatment: | Medium Frequence Quenching,High Frequence Quenching and Carburizing and Quenching,Oil Quenching,Water quenching,Normalizing,Temper,Annealing,etc. |
| 12. Dimension Inspection: | Calipers,Height Laugue,Micrometer Calipers,Inside Caliper Gauge,Angle and R Gauge,Three coordinates measuring instrument. |
| 13. Productivity: | 50000 pcs / year |
| 14. Packaging: | Wooden package after mandatory treatment or other |
| 15. They are using for mining equipment, Construction equipment, Agricultural equipment and others. | |
| 16. We make Coupler Knuckle,investment casting ,Lost wax casting,Lost foam casting,Silica sol casting and steel sand casting in Ningbo, China | |
| 17. Export Markets: ⑴ Australia Coupler Knuckle parts; ⑵ America, U.S.A. United States Coupler Knuckle parts; ⑶Canada Coupler Knuckle parts; ⑷ U.K. England, Britain Coupler Knuckle parts; ⑸ Germany Coupler Knuckle parts; ⑹ France Coupler Knuckle parts; ⑺ Italy Coupler Knuckle parts; ⑻ Spain Espana Coupler Knuckle parts; ⑼ Holand Coupler Knuckle parts; ⑽ South Africa Coupler Knuckle parts; ⑾ Danmark Coupler Knuckle parts; ⑿ Sweden Coupler Knuckle parts; ⒀ Finland Coupler Knuckle parts | |
| 18. Supplier:China Coupler Knuckle factory;China Precision company;China Co.,Ltd;China Coupler Knuckle INC;China Coupler Knuckle corporation;China Coupler Knuckle Manufacturer;China Coupler Knuckle supplier; China Coupler Knuckle parts, China Coupler Knuckle foundry. | |
| 19. Relationship Information:Ningbo Coupler Knuckle factory;Ningbo Precision company;Ningbo Coupler Knuckle Co.,Ltd;Hangzhou Coupler Knuckle factory;Hangzhou Coupler Knuckle company;Hangzhou Coupler Knuckle Co.,Ltd;Zhejiang Coupler Knuckle company;Zhejiang Coupler Knuckle Co.,Ltd. | |
| If you have any other question, please feel free to contact us. | |