Hollow Piston Rod Hard Chrome Plated Steel Bars Hydraulic Cylinder 42Crmo4 Black Color

· Sal solution: 50 (+/- 5) g/l of NaCl. Water is demineralized and salt purity is 99.5%.

· Environmental temperature: 35 °C.

· pH of salt solution is 6.8.

· Volumen of salt solution is 38.4 ml/day.

· Density of salt solution is 1,030 g/cm3.

· Spraying is 1.5 (+/- 0.5) ml/h.

NSS (Neutral Salt Spray test): More than 200 hours;
                                                 More than 360 hours;
                                                 More than 500 hours;
                                                 More than 100 hours;
 

 
TUV NSS Testing Report        SGS NSS Testing Report

Crafts Process Hardening Force Remove

In the whole crafts process, there are 2 times remove hardening forces: the first remove hardening force in the heat treatment process, hardening force remove is about 80%; the second remove hardening force in the surface treatment process, hardening force remove is about 90%-95%. Therefore, the piston rod is not easily deformed during use or transportation.

Applications:

Single-acting/double-acting hydraulic cylinders --- Garbage trucks, dump trucks, agricultural equipment, ships, mines, drilling platforms, machinery in harsh environments

MECHANCIAL PROPERTIES

Our advantage

1. Customization and OEM service is acceptable for us.

2. All our hydraulic cylinders and accessories obtained ISO 9001:2008 certification.

3. Samples can be providing to you before starting cooperation.

4. We are factory and can assure the prompt delivery time.

5. Packing can be customized. Often using standard export wooden case packing.

6.Neutral Salt Spray test,more than 300 hours ,500 hours ,also can reach 1000 hours.....

   can compare with chorm rod to do NSS .