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F2 HYDRAULIC CYLINDERS | ||
Characteristic Values | ||
Usage | : | Mobile and light industrial hydraulics, plus offshore- and marine hydraulics, cylinder diameter from ø25 to ø300 mm both included. |
Cylindertube | : | Max. piston speed 0,5 m/sec. If the piston speed in top or bottom exceeds 0,1 m/s, build-in damping in the cylinder is recommended. |
Pistonrod | : | Quality 20MnV6 corresponding to SS2142, Hard chrome 25ìm +/- 5ìm, Hardness min. 850 HV., Ra max. 0.2 ìm, external tolerance ISO f7 Alternative materials: SS2387 corresponding to EN 1.4418AISI 630 corresponding to EN 1.4542AISI 329 corresponding to EN 1.4460All qualities are delivered with hard chrome 25µm +/- 5µm, Hardness min. 850 HV., Ra max. 0.2 ìm, external tolerance ISO f7 Special material qualities can be delivered on request. |
Seals | : | Piston seal: Polyurethane wiper ring with nitrile O-ringRod seal: Lip seal of polyurethane.Wiper: Polyurethane with steel housingGuide rings: Composite material O-rings: Nitrile Alternative materials: Piston seal, rod seal and wiper:Wiper rings in PTFE with O-rings of nitrile. Recommended for intensive use plus applications, where low friction in the cylinder is desirableWiper rings in PTFE with O-rings of viton. Recommended for applications, where the seals can be exposed to temperatures above 80-100 °C. Special seals can be delivered on request |
Normal pressure | : | Max. 250 bar. |
Test pressure | : | Max. 375 bar. |
Piston speed | : | Max. piston speed 0,5 m/sec. If the piston speed in top or bottom exceeds 0,1 m/s, build-in damping in the cylinder is recommended. |
Tubebreakprotection | : | Can be delivered built-in as special task. |
Cussioning | : | Can be delivered built-in as special task. |
Positioning | : | Can be delivered with different types of electronic positioning, e.g. from REGAL, MTS-Temposonics or BALLUFF. |
Working temperat. | : | Working temperature ÷20 °C to +80 °C. Cylinders for working temperatures outside this area can be delivered on request. |
Pressure medium | : | Mineral oil-based hydraulic oil. |
Painting | : | Black primer. Can for extra charge be delivered e.g. shot blasted and painted in RAL 9005 – corrosion class C3. Surface treatment according to other standards as e.g. ISO 12944-2 or NORSOK M-501 can be delivered on request. |