HFA Range

The HFA range of single acting failsafe lock ring aluminum cylinders offers the benefit of significantly reduced weight compared to conventional steel cylinders as well as combines all the versatility and efficiency of hydraulic power with the safety of mechanical load support. Ideally suited for applications requiring sustained load holding for extended periods, such as bridge support work, the HFA cylinders feature a single acting, spring assisted return piston threaded throughout its stroke length, to suit the threaded mechanical load holding lock ring. Other capacities and stroke lengths area available on request.

  • Capacities from 35 to 121 tons
  • Stroke lengths from 2.01 to 12.02 inches
  • Working pressure 10000 psi
  • Single acting, spring assisted return
  • Hard anodized piston rod and cylinder for corrosion resistance
  • Low friction bearing surfaces
  • Anti-extrusion seals
  • Tilting saddle fitted as standard
  • Integral stop ring

Single Acting Failsafe Lock Ring Aluminium Cylinders
Model Number Capacity tons Stroke inch Oil cap. in3 Cyl. eff. area in2 Weight lbs Tommy bar
HFA302 35 2.01 14.15 7.04 13.2 TTB10
HFA306 35 5.99 42.15 7.04 17.6 TTB10
HFA3012 35 12.02 84.55 7.04 24.3 TTB10
HFA502 56 2.01 22.2 11.05 19.8 TTB10
HFA506 56 5.99 66.12 11.05 24.3 TTB10
HFA5012 56 12.02 132.68 11.05 37.5 TTB10
HFA1002 121 2.01 47.89 23.85 52.9 TTB10
HFA1006 121 5.99 142.74 23.85 66.1 TTB10
HFA10012 121 12.02 286.4 23.85 86.0 TTB10

Model Number Dimensions in inch
A B C D
HFA302 8.94 4.26 1.97 0.79
HFA306 12.92 4.26 1.97 0.79
HFA3012 18.95 4.26 1.97 0.79
HFA502 9.1 5.24 2.76 0.99
HFA506 13.08 5.24 2.76 0.99
HFA5012 19.11 5.24 2.76 0.99
HFA1002 10.91 7.96 3.94 1.38
HFA1006 14.89 7.96 3.94 1.38
HFA10012 20.92 7.96 3.94 1.38