RFJ Flat Jack Cylinders

Durapac Hydraulic Equipment

RFJ Flat Jack Cylinders

Very low height spring-return flat jacks, 5 to 150 ton, for starting a lift in minimal clearance.

Models

RFJ-50, RFJ-100, RFJ-200, RFJ-300, RFJ-500, RFJ-750, RFJ-1000, RFJ-1500

Operating instructions (PDF) →

The RFJ Series is Durapac’s lowest single-acting cylinder. Collapsed heights run from 1.28 in to 3.94 in, so it can go where there is almost no gap under the load.

Strokes are short, 0.25 to 0.63 in, which suits breaking a load free, making a first lift and small adjustments. Eight models cover 5 to 150 ton. CSK stack plate kits add height on the 5 to 30 ton sizes.

The bore and rod are hard chrome plated, a bronze overlay protects the piston bearing area, and a return spring retracts the rod.

Key Specifications

  • Capacity: 5 to 150 ton (8 models)
  • Stroke: 0.25 to 0.63 in
  • Collapsed height: 1.28 to 3.94 in
  • Maximum operating pressure: 10,150 psi
  • Weight: 2.3 to 58.0 lb
  • Base mounting holes; hardened grooved piston rod end
  • RFJ-50 supplied with whip hose and CR-6 coupling

Beyond the catalog

Not finding what you need?

Most projects aren't one size fits all. When the standard range doesn't cover your job, we put together equipment and systems built to your specifications.

See our custom assembly services →

01

Send us your specs

Share your system specifications or application requirements.

02

We source and build

We source reliable components from Durapac High Pressure Hydraulics and other suppliers to build your system.

03

Assembled and tested

Products are pre-assembled and tested before they ship to you.