Product Data
ALPHASYN PG RANGE
Synthetic Industrial Extreme Pressure Gear Oil
DESCRIPTION
Castrol Alphasyn PG synthetic gear oils are based upon highly stable polyglycol base
fluids, the properties of which are further enhanced by a complex additive system giving
improvements in load carrying capacity, oxidation and thermal stability, allowing
operation at high loads and continuous high temperatures.
APPLICATION
Alphasyn PG gear oils are primarily intended for use in worm reduction gear boxes,
where the low coefficient of friction of the polyglycol base fluid gives improvements in
efficiency and consequent reductions in power consumption and operating
temperatures, particularly when operating at high loads. The stability of the synthetic
base when compared to mineral oil also allows increased maintenance intervals and
fluid life, reducing servicing costs.
Alphasyn PG gear oils are available in ISO viscosity grades from 150 to 460.
FEATURES BENEFITS
S High load carrying capacity and S Reduced Maintenance
outstanding wear protection
S Low coefficient of friction S Reduced energy consumption and
operating temperature
S High viscosity index and low Pour S Wide operating temperature range and
Point, Stable at high temperatures minimise or avoid pre-heating for cold
(up to 140Deg C) starts
S Excellent corrosion protection for
gearboxes operating in humid
environments
Castrol
Alphasyn PG Range Aspect Park
29/04/2004 Pipers Way
All reasonable care has been taken to ensure that the information contained in this publication is accurate at the date of printing. It Swindon
should be noted however that the information may be effected by changes subsequent to the date of printing in the blend formulation
or methods of application of any of the products referred to or in the requirements of any specification approval relating to any such SN3 1RE
Products
United Kingdom
Tel +44 (0)1793 452111
Product Data
ALPHASYN PG RANGE
PHYSICAL CHARACTERISTICS
Castrol Alpha SP Range Alphasyn PG 150 Alphasyn PG 220 Alphasyn PG 320 Alphasyn PG 460
ISO Viscosity Grade 150 220 320 460
Kinematic Viscosity
@ 40oC, cSt 150 220 320 460
@ 100oC, cSt 27.8 39.7 55.7 79.5
Viscosity Index 225 235 240 255
Relative Density @ 20oC 1.05 1.06 1.06 1.06
Pour Point, oC -39 -39 -36 -36
Air Release Value @ 75oC mins 12 12 12 12
Open Flash Point, oC 260 262 268 268
Foam Seq 1 Tendency/Stability, 30/Nil 30/Nil 30/Nil 30/Nil
mls
Rust Test, Distilled Water, Pass Pass Pass Pass
IP135A
Copper Corrosion, 3 hrs @ 1B 1B 1B 1B
100°C, IP154
4-Ball EP Test Weld Point, kg 225 230 235 240
4-Ball Wear Test 1 hr @ 30kg, 0.30 0.28 0.27 0.26
mm
Timken OK Load, lbs 65 70 70 80
FZG Gear Test Failure Load 12+ 12+ 12+ 12+
Stage Pass
MATERIALS COMPATIBILITY
Alphasyn PG synthetic oils have different material compatibilities than mineral oils. The following
are satisfactory:-
|
