Hydraulic Ram Piston

Hydraulic Ram Piston












APPLICATION

Hydraulic Ram Piston

SECTOR
  • Hydraulic and Pneumatic Manufacture
GRADE
SUITABLE TO REPLACE
  • Steel
  • Sand Castings
  • Aluminium
ADVANTAGES
  • Withstand high pressure (Unibar-500-7 & Unibar-600-3)
  • Better machinability – self lubricating – chip generating
  • Shorter deburring time
  • Shorter distance between holes due to better machinability
  • Good vibrational absorption
  • No shrinkage or porosity
  • Lighter than steel
  • Finer grain structure than sand casting
COST SAVING
  • Much lower machining time
  • Much lower deburring time
  • Higher tool life due to self lubricating properties
  • Higher machining speeds on delicate corners
  • Cheaper than Aluminium
  • No pattern costs
  • No rejected parts
  • No sand inclusions and other casting defects





Unibar Grade Microstructure
Hardness
[HB]
UTS
[N/mm2]
Unibar 250 Graphite flakes in pearlitic / ferritic matrix
180 – 220
250
Unibar 300 Graphite flakes in pearlitic matrix
200 – 240
300
Unibar 500-7 Graphite nodules in ferritic / pearlitic matrix
180 – 230
500
Unibar 600-3 Graphite nodules in pearlitic matrix
200 – 260
600