RENOLIN ZAF D

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RENOLIN ZAF D

Zinc and Ash-Free, Detergent Hydraulic Oils

Diagram

Zinc and Ash-Free, Detergent Hydraulic Oils

Zinc- and ash-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 oils can contaminate other functional fluids.
RENOLIN ZAF D hydraulic oils are zinc- and ash-free hydraulic oils with good detergent properties. The detergent agents in these oils reduce the formation of residues and ageing by-products.
They are HM hydraulic oils in line with ISO 6743-4 but with additional detergent and dispersant characteristics.

The most important features of RENOLIN ZAF D 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 sludge transportation and cleaning properties

Good compatibility with sealing materials

Application:

RENOLIN ZAF D products are high-grade HM hydraulic oils in line with ISO 6743-4 which can be used in all hydraulic systems but also as CKC lubricating oils in line with ISO 6743-6. RENOLIN ZAF D products contain additives which avoid the formation of residues and guarantee the functional reliability of machinery.

OLIN ZAF		32 D	46 D	68 D
Hydraulic oil type
acc. to ISO 6743-4		HM 32	HM 46	HM 68
acc. to DIN 51 502		HLPD 32	HLPD 46	HLPD 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	32	46	68	ASTM D 445
at 100 °C	mm²/s	5.4	6.9	8.6	ASTM D 445
Viscosity index		100	105	97	ASTM D 2270
Density at 15 °C	kg/l	0.878	0.882	0.884	ASTM D 1298
Flash point, Cleveland open cup	°C	210	230	230	ASTM D 92
Pour point	°C	-33	-27	-24	ASTM D 97
Neutralization number	mg KOH/g	0.35	0.35	0.35	ASTM D 974
Saponification number	mg KOH/g	1.1	1.1	1.1	ASTM D 94
Air release at 50 °C	min	3	4	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	38	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	5	DIN 53 521 together with DIN 53 505
change in Shore A hardness	Shore	-3	-3	-2	DIN 53 521 together with DIN 53 505

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