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RENOLIN AW
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.
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RENOLIN AW |
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32 |
46 |
68 |
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Hydraulic oil type |
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acc. to ISO 6743-4 |
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HM 32 |
HM 46 |
HM 68 |
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acc. to DIN 51 502 |
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HLP 32 |
HLP 46 |
HLP 68 |
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Lubricating oil type |
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acc. to ISO 6743-6 |
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CKC 32 |
CKC 46 |
CKC 68 |
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acc. to DIN 51 502 |
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CLP 32 |
CLP 46 |
CLP 68 |
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Characteristics |
Unit |
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Test method |
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Colour |
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1 |
1 |
1 |
ASTM D 1500 |
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Kinematic viscosity |
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at 40 °C |
mm²/s |
31.5 |
45 |
65.4 |
ASTM D 445 |
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at 100 °C |
mm²/s |
5.3 |
6.7 |
8.4 |
ASTM D 445 |
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Viscosity index |
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98 |
101 |
98 |
ASTM D 2270 |
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Density at 15 °C |
kg/l |
0.878 |
0.878 |
0.885 |
ASTM D 1298 |
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Flash point, Cleveland open cup |
°C |
215 |
230 |
230 |
ASTM D 92 |
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Pour point |
°C |
-30 |
-27 |
-21 |
ASTM D 97 |
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Neutralization number |
mg KOH/g |
0.3 |
0.3 |
0.3 |
ASTM D 974 |
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Saponification number |
mg KOH/g |
1.3 |
1.3 |
1.3 |
ASTM D 94 |
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Water content |
% mass |
not traceable |
not traceable |
not traceable |
ASTM D 95 |
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Insolubles |
% mass |
not traceable |
not traceable |
not traceable |
DIN 51 592 |
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Demulsification |
min |
10 |
10 |
15 |
DIN 51 599 |
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Air release at 50 °C |
min |
3 |
8 |
7 |
ASTM D 3427 |
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Foaming, |
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seq. I |
ml |
30/0 |
50/0 |
50/0 |
ASTM D 892 seq. I-III |
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seq. II |
ml |
20/0 |
20/0 |
20/0 |
ASTM D 892 seq. I-III |
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seq. III |
ml |
20/0 |
20/0 |
20/0 |
ASTM D 892 seq. I-III |
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Copper corrosion |
degree of corr. |
1a-100A3 |
1a-100A3 |
1a-100A3 |
ASTM D 130 |
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Rust prevention |
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pass A |
pass A |
pass A |
ASTM D 665 |
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Ageing behaviour, increase in neutralization number after 1000 h |
mg KOH/g |
< 2 |
< 2 |
< 2 |
ASTM D 943 |
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Brugger boundary friction test |
N/mm² |
38 |
DIN 51 347 (D) |
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FZG mechanical gear rig test |
load stage |
> 12 |
> 12 |
> 12 |
DIN 51 354-2 |
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Vickers vane pump test, loss of mass |
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on ring |
mg |
120 |
120 |
120 |
IP 281 |
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on vanes after 250 h |
mg |
30 |
30 |
30 |
IP 281 |
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Effect on SRE-NBR 1 seal material acc. to DIN 53 538-1 at 100 °C +/– 1 °C after 7 days +/– 2 hours, |
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