Castrol Hyspin AWH 46 (205 L) – ISO VG 46 Anti-Wear Hydraulic Oil for Industrial & Mobile Systems

Product Overview

Castrol Hyspin AWH 46 is a premium quality hydraulic fluid designed for systems requiring ISO VG 46 viscosity and strong anti-wear performance. This hydraulic oil blends high-viscosity-index base stocks with an advanced zinc-based anti-wear additive system to deliver reliable lubrication under both moderate and severe service conditions. The 205-litre drum format is ideal for heavy-volume use in industrial workshops, maintenance facilities, and mobile equipment fleets, offering cost efficiencies and operational continuity.

Whether applied in manufacturing machinery, construction hydraulics, earth-moving equipment, or large-scale mobile hydrostatic systems, Hyspin AWH 46 ensures optimal protection against wear, corrosion, foaming and thermal degradation. The product is engineered to maintain viscosity stability across wide temperature ranges, provide excellent pump performance, and support long service intervals with consistent system cleanliness.

Key Features & Benefits

Anti-Wear Protection
The formulation uses a zinc-based additive system that significantly reduces surface wear on hydraulic pumps, valves and actuators under high pressure and high load conditions. This reduces downtime, replacement costs, and maintenance frequency.

Wide Viscosity Index & Stable Flow
With a high viscosity index and low pour point, the fluid maintains proper thickness at elevated temperatures and good flow at low ambient temperatures. This makes it suitable for both industrial indoor plants and mobile equipment exposed to wide temperature swings.

Superior Oxidation & Thermal Stability
Hyspin AWH 46 resists breakdown under thermal stress and continuous operation. This means fewer sludge and deposit build-ups, cleaner circuits and longer fluid life compared to conventional oils.

Excellent Demulsibility and Water Separation
Exposure to water or condensation is common in hydraulics. Hyspin AWH is engineered to drain water rapidly, preserving lubrication performance and protecting internal components from corrosion or cavitation damage.

Corrosion & Rust Inhibition
Ferrous and non-ferrous metals are protected from corrosion thanks to the additive system. This is especially valuable for machines in humid or outdoor environments where moisture ingress and water-borne threats exist.

Foam and Air Control
The formulation includes antifoam and air-release additives that ensure hydraulic systems respond reliably without air entrainment, cavitation risk or erratic control response.

Filterability & System Cleanliness
Designed to maintain cleanliness in systems with fine filtration, Hyspin AWH 46 helps reduce filter plug-offs, maintain flow, and extend component life thanks to robust base oil and additive selection.

Applications

Castrol Hyspin AWH 46 is suitable for a wide variety of hydraulic applications including:

• Industrial hydraulic systems: presses, injection moulders, stamping machines, machine tools

• Mobile hydraulic equipment: excavators, wheel loaders, articulated haulers, forestry machines

• Construction and earth-moving: graders, backhoes, asphalt pavers

• Agricultural hydraulics: tractors, harvesters, sprayers, loader arms

• Large hydraulic power packs and mobile fluid reservoirs

• Systems operating in high temperature or contaminated environments where extended oil life is vital

• Workshops and maintenance fleets looking for bulk supply and high reliability

This oil is not intended for use in systems requiring food-grade, biodegradable or zinc-free hydraulic fluids unless explicitly approved.

Typical Physical Properties

Note: Typical values only. Actual batch results may vary within standard tolerances.

Handling & Storage Advice

• Store the product in a clean, dry, and well-ventilated indoor environment, away from direct sunlight or sources of ignition.

• Keep containers sealed when not in use to prevent contamination by dust, moisture, and other fluids.

• Avoid exposure to temperatures above 60 °C or below freezing; if outdoor storage is unavoidable, store drums horizontally to minimise water ingress.

• Use dedicated, clean pumps and hoses when dispensing to avoid cross-contamination with other fluids.

• Clearly label bulk tanks and storage containers to prevent mixing with incompatible materials.

• Dispose of used oil and filters according to local environmental regulations and authorised disposal procedures.

• Wear appropriate personal protective equipment when handling, and refer to the Safety Data Sheet for full health and safety guidance.

• Ideal shelf life: approximately 5 years when stored in original sealed packaging under correct conditions.