L-HM Anti-Wear Hydraulic Oil (High Pressure, Ash-Free)

Category:

Hydraulic Oil

Machine Manufacturing

Keywords:

Intermediate | Amine Antioxidants | Phenolic Antioxidants | Complex Antioxidant Blends | Pre-dispersed Masterbatches

Information

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Product Name:
L-HM Anti-Wear Hydraulic Oil (High Pressure, Ash-Free)

Product Name:

Viscosity grade:
32#/46#/68#/100#

Product Quality Standards

Product Description

This product is formulated using premium hydrogenated base oil, combined with a variety of high-quality ash-free additives—such as extreme-pressure, anti-wear, antioxidant, rust-inhibiting, and anti-corrosion agents—through advanced manufacturing processes.

Product Performance

A unique zinc-free anti-wear formula that effectively protects silver-containing components, extending the lifespan of silver or silver-plated parts.

Outstanding wear resistance and extreme-pressure performance, effectively extending the system's operational lifespan.

Outstanding thermal stability and oxidation resistance extend oil change intervals;

Outstanding anti-foaming and air-release properties ensure the system delivers hydrostatic pressure energy with sensitivity, precision, and smooth operation.

Outstanding demulsibility allows water mixed into the oil to separate quickly, ensuring proper lubrication of the oil.

Technical Specifications

GB 11118.1-2011

Scope of application

Suitable for various types of domestically or internationally sourced high- and ultra-high-pressure hydraulic equipment equipped with vane pumps (operating pressure above 17.5 MPa) and piston pumps (operating pressure above 28 MPa). This includes the high-pressure hydraulic systems found in large-scale construction machinery such as cranes, excavators, dump trucks, and more. Particularly recommended for precision hydraulic systems containing copper- or silver-based components.

Technical indicators

Project		Quality Standards				Experimental Method
Project		32#	46#	68#	100#	Experimental Method
Kinematic viscosity (40°C), mm²/s ²/s		28.8–35.2	41.4–50.6	61.2–74.8	90–110	GB/T 265
Flash Point (Open Cup), °C	≥	175	185	195	205	GB/T 3536
Pour point, °C	≤	-15	-9	-9	-9	GB/T 3535
Moisture, %	≤	Traces	Traces	Traces	Traces	GB/T 260
Mechanical impurities, %	≤	None	None	None	None	GB/T 511
Foam Properties / (mL/mL)
24°C	≤	150/0	150/0	150/0	150/0	GB/T 12579
93.5°C	≤	75/0	75/0	75/0	75/0
24°C later	≤	150/0	150/0	150/0	150/0
Copper Sheet Corrosion (100°C, 3h) / Grade		≤1	≤1	≤1	≤1	GB/T 5096
Liquid Phase Rusting (Method B)		Rust-free	Rust-free	Rust-free	Rust-free	GB/T 11143
Oxidation Stability (Rotating Oxygen Bomb, 150°C), min	≥	600	600	600	600	SH/T 0193
Air release value (50°C), min	≤	6	10	13	Report	SH/T 0308
Demulsibility / min (40-37-3, 54°C)	≤	30	30	30	/	GB/T 7305
Emulsion-breaking resistance/min (40-37-3, 82°C)	≤	/	/	/	30	GB/T 7305

Instructions for Use and Precautions

According to equipment lubrication guidelines, select oil products with appropriate viscosity. During use and storage/transportation, prevent contamination by foreign objects and strictly avoid mixing in mechanical impurities or water. Ensure the oil tank remains clean—when changing the oil, thoroughly flush both the tank and oil lines—and never mix it with oils of different types.