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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, | |
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