Characteristic Values

Usage : Plungercylinder for agricultural maschinery and lighter hydraulic applications, cylinder diameter from ø25to ø65mm both included.
Cylindertube : St.52-3 Din. 2391/2393, internal tolerance H8-H10, Ra max 0,8 µm
Pistonrod : Quality 20MnV6 corresponding to SS2142, Hard chrome 25 μm ± 5 μm, hardness min. 850 HV., Ra max. 0.2 μm, external tolerance ISO f7.
Alternative Quality:
AISI 329 corresponding to SS2324, Hard chrome 25 μm ± 5 μm, hardness min. 850 HV., Ra max. 0.2 μm, external tolerance ISO f7. Special material qualities can be delivered on request.
Seals : (Standard) Piston rod: Lip seal of polyurethane. Wiper: Nitrile rubber Sh.90 with steel edge.
Normal pressure : max. 210 bar.
Test pressure : max. 315 bar.
Piston speed : Max. piston speed 0.1 m/sec, if stroke length not used (rod reaches bottom). If speed exceeds 0.1 m/sec, damping is recommended.
Tubebreakprotection : Can be built-in by custom order.
Cussioning : Not available with damping.
Positioning : Not available with electronic positioning.
Working temperat. : Operating temperature ÷30° C to +100° C
Pressure medium : Mineral oil-based hydraulic oil.
Painting : Comes standard with black primer. Available pre-painted at extra cost.

Fjero develops and manufactures customized and standardized hydraulic cylinders. Our hydraulic cylinders perform many different functions every day - often in demanding environments.

Our customers, who work in many different industries, place great demands on functionality, quality and durability.


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