RENOLIN ZAF B

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RENOLIN ZAF B

Zinc- and Ash-Free HM Hydraulic Oils and CKC Lubricating Oils

Diagram

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,
relative volume change	%	7	6	6	DIN 53 521 together with DIN 53 505
change in Shore A hardness	Shore	- 3	-3	-3	DIN 53 521 together with DIN 53 505

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