Basically, the applications are the same as for the singleacting hollow cylinders, but for this model range the return of the piston is done hydraulically by means of the second oil port. These double-acting hollow cylinders are used when the piston needs to be retracted quickly e.g. with high-cycle pulling applications
Hollow cylinders are used as the power component within hydraulic puller sets, for prestressing anker bolts, removing axles, shafts, bushings, extracting tubes, as well as for heavy-duty pulling applications
Key Features
- Yale ChroMo-Design
- Operating pressure max. 700 bar
- Double-acting with spring return
- With large centre hole diameter
- Cylinder body and piston are made from solid chromium-molybdenum steel and heat-treated
- Hard-chromium plated piston with replaceable, heattreated saddle
- Metric mounting threads at cylinder body and inside of piston
- Stop ring prevents overtravel of the piston up to full operating pressure
- Interchangeable hardened saddle
- With inner and outer dirt wipers
- Supplied with 2x lifting rings
- Oil port thread 3/8 NPT
- Incl. 2x female coupler half CFY-1
Specifications
- Model: YCH-93/250
- Cylinder size: 93tonne
- Capacity push: 930kN
- Capacity pull: 450kN
- Stroke: 250mm
- Closed height: 465mm
- Cylinder outside diameter: 193mm
- Centre hole diameter: 55mm
- Effective plunger area: 133cm²
- Oil volume max: 3320cm³
- Weight: 82kg