Cylinder rams

We design, manufacture and test rams to suit all applications and requirements. Whether you require a ram for a modified machine, a machine CADyou’ve designed, or a quicker lead time for a current machine than the OEM’s are able to deliver. We can provide one off or batch production with all the necessary documentation and complete test certificate.

Ram varieties and options can be as vast as the horizon, with the majority of rams designed purposely to suit an application or machine. Design considerations can consist from:


Application and working environment
  • Type of seals to use
  • Seal material
  • Cylinder finish (galvanised, anodized, painted)
  • Positioning of ports & piping
  • Heavy duty, light duty
Operating pressures
  • Structural and mechanical properties of ram materials
  • Seal specification
Calculating suitable cylinder and rod sizes to cope with the load
  • Cylinder wall thickness to avoid rupture
  • Rod diameter to avoid buckling
  • Coupling methods
Closed and open centre lengths
  • Length of materials
  • Dimensions of internal components & seal selection
  • Use of spacers or bushes
  • Cushioning
Port and flange sizes
  • Flow exposure
  • Pressure exposure
  • Pipe work / fittings on existing machine
Counterbalance / over-centre valve calculation (if required)
  • Application dependant
  • Avoids creep
  • Provides form of safety
  • Requires pressure to operate even under loading (dependant on valve ratio)
  • Load steadying
  • Pipe burst protection
Requirements for coupling the ram: pin eyes, flanges or knuckles
  • Load / force positioning
  • Application
  • Load / force exposure – Impact, static or dynamic
  • Available room / mounting methods on machine
Available seal sizes and materials
  • Polyurethane
  • Rubber
  • Bronze embedded PTFE
  • Nitrile
  • EPDM
  • Neoprene
  • Silicone
  • All dependant on working environment / fluid type and temperature
piping requirements
  • Steel / rubber pipe access
  • Compactness
  • Ram positioning on machine
  • Counterbalance requirement



Contact us today for more information on costs, lead time or advice on howto proceed.