Jonyang JY-230E Excavator Sprocket 50Mn/40Mn2 Material Perfect Performance

 Standard exported wooden pallet

 Fumigate seaworthy packing 

 1.Castings processing must produce according to requirements and drawings

 2.The workpiece is annealed to eliminate internal stress , the surface sand should be clean .Tooth tooth relative to the standard , the error should be controlled within 5 range .

 3.The modulation of heat treatment hrc30-36 , surface frequency quenching , tempering thesurface hardness of hrc48-hrc54 , hardened layer 5-9mm , core hardness of HRC28 ormore , hardened layer microstructureRequired to achieve the m4-6 stages .

 4.The mechanical tensile strength & N / mm2 > 620 , yield strength & N / mm2 > 375.

 1. Professional Engineers

 Give Us Size, Give You products". Engineers here with rich experience. Our engineers have dealed with this line for more than 15 years.
 2. Sale & Service Team

 24 Hours Online, Best service here for you anytime. Any question, please free contact us.
 3. Factory & Warehouse

 Focus On Quality Assurance.Keep The Enough Stock.
 4. Shipping

 Most of our prouducts have in stock, we can ship out your order in the shortest time.
 5. About the Quality

We can offer the material report and test report. If the product was broken in quality guarantee period, we can ship new one to you.