Quality Control

The Manufacturing, Quality Testing and Packing

• We’ve established a rigorous product-manufacturing program, keeping the record of our customer’s drawings and samples.
• Fast quality feedback during product making.
• The piston and rod: the pistons, the seal, O-rings inspected at random, the piston rod size, the hardness, rod finishing inspecting.
• The tube: the cylinder tube cutting, chamfer, the size, tube inner finishing inspecting.
• Assembling: the rod and the cylinder assembling, checking the piston with rod smoothly in the cylinder, the amount of the oil.
• The gas spring fills with inert nitrogen gas, force testing, 500N less pressure control range ± 15N, 500N more pressure more control range± 20N.
• After the surface treatment doing, painting, checking the paint.
• The force testing again, checking the oil leakage, gas leakage.
• The packing: every good product with one plastic bag, the label, warning signs, good cartons packing. Each carton weight is less than 20kgs.
• The stocked: after all gas springs are finished, we move them into the stocked room. The piston rod of gas springs is in the lower level than the cylinder tube.