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HM81 HYDRAULIC CYLINDERS |
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Characteristic Values |
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| Usage | : | Agricultural machinery and light hydraulic jobs, cylinder diameters from Ø32mm to ¬Ø100mm.. |
| 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. 210 bar. |
| Test pressure | : | max. 315 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. |
| Positioning | : | Available on request with different types of electronic positioning, model REGAL, MTS-Temposonic & BALLUFF (see special brochure). |
| 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 an extra cost. |
