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Gas spring maintenance (inspection)

· 2 min read

Gas springs have the advantage of being lighter and requiring less replacement time than coil springs, but as they are devices that use high-pressure gas, natural leaks occur. Periodic inspection by the user is required to manage this.

Application ModelHS180/220, HH300,HS200L
Replacement M/H0.5 hours (depending on environment)
integrityPeriodic inspection. Twice a year (refer to manual)
caution
  • Problem that occurs when gas spring pressure drops: H-axis overload error occurs (robot stops)
    • Depends on the level of leakage. Depending on the load on the H axis, it may not occur even if the entire amount of leakage occurs.
    • Overcurrent warning occurs (H-axis warning needs to be checked)

How to check pressure

  • Apply pressure automatic detection function (Hi5a version MV40.17.00 or higher)

    • Warning occurs below 60 bar
    • Error occurs below 30 bar (robot stops)
    • Warning level can be manually set in T/P (details announced later)
  • Manual measurement using a pressure gauge (general pressure gauge: digital (PT118) recommended)

How to respond when pressure drops

pressure(bar)Action takemeaningnote
140~100maintainThere is no or minimal leakage.
100 or lessgas fillingPressure decrease due to natural leakageUse after filling
100 or lesssubstituteRapid deterioration due to seal damageFirst filling test required
  • Problems when using gas springs while neglecting natural pressure drop
    • The friction angle between the cartridge and the tube increases, causing damage to the seal.
    • Early damage to gas springs occurs