Vickers

test surface hardness of the anodized hardening cylinder.

Surfagauge

test roughness inside the cylinder treated by anodized hardening.

Epoxy-polyester powder coating,test its adhesive force with cross-cut tester.

Salt spray test chamber 

test anti-corrosion performance of the actuator surface. 

Inspect sealing performance under water tank after actuator assembly.

Actuator creep test under high/low temp.

output torque dynamic testing

output torque static testing

Two million cycles test for actuator life-span with 70% output torque loaded under 5.5 bar air supply normal temp.