HM85-S-D-80/50x1000-S-R

HM85-S-D-80/50X1000-S-R

• Usage : Mobile and industrial hydraulics, as well as marine hydraulics, cylinder diameters from Ø32mm to Ø250 mm.
• Cylindertube : St. 52-3 DIN 2391/2393, int. 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, ext. 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, ext. tolerance ISO f7. Special qualities on request.
• Seals : (Standard) Piston: Nitrile w/ acetal feed rings. Piston rod: Polyurethane lip seal. Wiper: Nitrile rubber Sh.90 with steel edge.
• Normal pressure : Max. 250 bar.
• Test pressure : Max. 375 bar.
• Piston speed : Max. piston speed 0.5 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.
• Working temperat. : Operating temperature -30°C to +100°C.
• Pressure medium : Mineral oil-based hydraulic oil.
• Painting : Comes standard with black primer.