RENOLIN ZAF B Zinc- ａnd Ash-Free HM Hydraulic Oils ａnd CKC Lubricating Oils Zinc- ａnd Ash-Free HM Hydraulic Oils ａnd CKC Lubricating Oils
Zinc-free hydraulic oils have steadily gained popularity over the last few years.
In many cases, the use of a zinc-free hydraulic oil is a must, especially in machine tools where hydraulic fluids can contaminate metalworking fluids. RENOLIN ZAF B hydraulic oils are zinc- ａnd ash-free HM hydraulic oils complying with ISO 6743-4.
The most important features of RENOLIN ZAF B hydraulic oils are:
- Good oxidation stability ａnd good resistance to ageing
- Powerful EP properties ａnd very good wear protection
- Excellent corrosion protection
- Rapid air release ａnd low foaming
- Good demulsification characteristics
- Good compatibility with sealing materials
Application:
RENOLIN ZAF B products are high-grade HM hydraulic oils according to ISO 6743-4 which can be used in all hydraulic systems but also as CKC lubricating oils according to ISO 6743-6 in gearboxes, bearings ａnd circulating systems. RENOLIN ZAF B products are recommended for use in machine tools where contact between hydraulic oils ａnd metalworking fluids can take place.
| RENOLIN ZAF | | 32 B | 46 B | 68 B | | | Hydraulic oil type | | | | | | | acc. to ISO 6743-4 | | HM 32 | HM 46 | HM 68 | | | acc. to DIN 51 502 | | HLP 32 | HLP 46 | HLP 68 | | | Lubricating oil type | | | | | | | acc. to ISO 6743-6 | | CKC 32 | CKC 46 | CKC 68 | | | acc. to DIN 51 502 | | CLP 32 | CLP 46 | CLP 68 | | | Characteristics | Unit | | | | Test method | | Colour | | 1 | 1 | 1 | ASTM D 1500 | | Kinematic viscosity | | | | | | | at 40 °C | mm²/s | 31.5 | 45 | 65.4 | ASTM D 445 | | at 100 °C | mm²/s | 5.3 | 6.7 | 8.4 | ASTM D 445 | | Viscosity index | | 98 | 101 | 98 | ASTM D 2270 | | Density at 15 °C | kg/l | 0.878 | 0.878 | 0.885 | ASTM D 1298 | | Flash point, Cleveland open cup | °C | 215 | 230 | 230 | ASTM D 92 | | Pour point | °C | -30 | -27 | -21 | ASTM D 97 | | Neutralization number | mg KOH/g | 0.3 | 0.3 | 0.3 | ASTM D 974 | | Saponification number | mg KOH/g | 1.3 | 1.3 | 1.3 | ASTM D 94 | | Water content | % mass | not traceable | not traceable | not traceable | ASTM D 95 | | Insolubles | % mass | not traceable | not traceable | not traceable | DIN 51 592 | | Demulsification | min | 10 | 10 | 15 | DIN 51 599 | | Air release at 50 °C | min | 3 | 8 | 7 | ASTM D 3427 | | Foaming, | | | | | | | seq. I | ml | 30/0 | 50/0 | 50/0 | ASTM D 892 seq. I-III | | seq. II | ml | 20/0 | 20/0 | 20/0 | ASTM D 892 seq. I-III | | seq. III | ml | 20/0 | 20/0 | 20/0 | ASTM D 892 seq. I-III | | Copper corrosion | degree of corr. | 1a-100A3 | 1a-100A3 | 1a-100A3 | ASTM D 130 | | Rust prevention | | pass A | pass A | pass A | ASTM D 665 | | Ageing behaviour, increase in neutralization number after 1000 h | mg KOH/g | < 2 | < 2 | < 2 | ASTM D 943 | | Brugger boundary friction test | N/mm² | 38 | DIN 51 347 (D) | | | | FZG mechanical gear rig test | load stage | > 12 | > 12 | > 12 | DIN 51 354-2 | | Vickers vane pump test, loss of mass | | | | | | | on ring | mg | 120 | 120 | 120 | IP 281 | | on vanes after 250 h | mg | 30 | 30 | 30 | IP 281 | | Effect on SRE-NBR 1 seal material acc. to DIN 53 538-1 at 100 °C +/– 1 °C after 7 days +/– 2 hours, | |
