Features
FDH Type Hydraulic Cylinders
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- Hydraulic Cylinders
- FDH Type Hydraulic Cylinders
Pressure & Performance
Dimensions and Stroke
Temperature
- Home
- Hydraulic Cylinders
- FDH Type Hydraulic Cylinders
Features
Pressure & Performance
Temperature
Dimensions and Stroke
When to Choose an FDH Hydraulic Cylinder
The FDH series is our standard hydraulic cylinder for general industrial work — pushing, pulling, lifting and positioning. It is built for 160 bar working and 240 bar test pressure (250 bar option) with ISO-based mounting options, so it drops into most machine designs without special brackets.
If your priorities are standard dimensions, short lead time and easy spares, start with FDH. For shock loads and harsh sites look at the KHS series; for tight installation space, the welded THS series.
Choosing the Mounting for an FDH Cylinder
| Mounting | Load path | Choose it for |
|---|---|---|
| Front flange | Rigid; best for push loads | Presses, clamping, pushing |
| Rear flange | Rigid; best for pull loads | Pulling, lifting |
| Foot | Side-mounted; bending moment on the bolts | Horizontal motion, machine beds |
| Trunnion | Pivots in one plane | Loads moving through an arc |
| Rear clevis | Pivots at the rear | Levers, gates, platforms |
Fixing a pivoting load with a rigid flange side-loads the rod and seals; use a clevis or trunnion with a rod eye instead. Size the bore with our hydraulic cylinder force calculator.
Frequently Asked Questions
What is an FDH type hydraulic cylinder?
Fenitsa’s standard hydraulic cylinder series for general industrial use, built for 160 bar working and 240 bar test pressure with foot, clevis, flange and trunnion mountings.
What is the difference between FDH and KHS?
FDH is the general-purpose standard series; KHS is a heavier-duty design for mobile equipment and harsh conditions. For steady loads in a normal environment FDH is sufficient.
What is the FDH piston rod made of?
Ck45 steel, hard chrome plated to at least 20 µm, f7 tolerance, running in a honed St52 steel tube.
What temperature range can FDH cylinders handle?
−20 °C to +80 °C with standard seals, −30 °C to +200 °C with a special seal package.
Fenitsa meets the needs and requirements of the machinery manufacturing sector, especially in pneumatics, to the maximum extent possible.
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