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