Brass & Copper / Taiwan-Based Metalworking Fluid Manufacturer & Supplier For 39 Years | HLJH

Processing brass/copper/bronze alloy / HAI LU JYA HE Co., Ltd. (HLJH) have been focusing on manufacturing and marketing the industrial lubricants more than 30 years. Our fundamental belief is to make a harmful, friendly with lives, businesses, and leaving a lasting legacy for generations to come. We offer metalworking fluids (water-based cutting fluid, neat cutting oil), rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain.

Processing brass/copper/bronze alloy

Brass & Copper

Selection of cutting fluid for brass and copper alloy

Has your brass/bronze/copper get discolored during machining? You have to check your cutting oil first. As a manufacturer of cutting oils, we understand that cutting fluids are generally compounding mineral oil and multi additives to stable pH level, lubricity. However, sulfur and chlorine compounds, sometimes called extreme pressure (EP) additives, provide for even greater lubricity. But, they are not suitable for each metal materials.


coolant get color change
coolant get color change

Most brasses, bronzes, and copper are stained when exposed to cutting oils containing active sulfur and chlorine. Some formula (additive) has reacted with oxygen, water, and carbon dioxide in the sump, when machining copper and brass. Thus, sulfurized and sulfochlorinated oils should not be used.

Besides, lubricity and cleaning are also most important things. If your cutting oils do not have enough lubricity, metal chips will stick on tools, and even scratch the workpieces. If the chips settled in the sump, no filtered immediately, it will caused oxidize. That is why the coolant form that same patina in the sump....

Hai Lu Jya He recommend MORESCO NN-254T and MORESCO NN-205T neat cutting oils with non-active sulfurized. For water-based cutting fluid, we recommend MORESCO BS-6S semi-synthetic cutting oil and WILL AIE-73 semi-synthetic cutting oil without chlorine additives. These cutting oils are especially good on brass, and provide excellent performances during machining.

If the above products can not fit your requirements, please fill out the form below or Contact Us. We will contact you as soon as possible. We can offer another product for your reference. Just let us know your needs.

Neat Cutting Oil

Product ModelDensity 15°CViscosity 40°CPackage
MORESCO NN-254T0.85-0.8823-2618L / 200L
MORESCO NN-205T0.87220.0618L / 200L

Water Soluble Cutting Fluid

Product ModelDensity 15°CViscosity 40°CPackage
MORESCO BS-6S0.975118L / 200L
WILL AIE-730.984718L / 200L
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ISO 9001:2015 Certified Industrial Lubricants Manufacturer And Supplier Since 1982 | HLJH

Located in Taiwan, HAI LU JYA HE CO., LTD has been an industrial lubricant manufacturer and supplier. Main products, include metalworking fluids, industrial lubricants, soluble cutting oils, semi-synthetic cutting oils, synthetic cutting fluids, neat cutting oils, rust preventive oils, slideway oils and hydraulic oils, which can reach 150 tons of cutting fluids per month.

HAI LU JYA HE Co., Ltd. (HLJH) have been focusing on manufacturing and marketing the industrial lubricants more than 30 years. Our fundamental belief is to make a harmful, friendly with lives, businesses, and leaving a lasting legacy for generations to come. We offer metalworking fluids (water-based cutting fluid, neat cutting oil), rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain. Our fundamental belief is to offer harmful and friendly products such as water-based cutting oils, neat cutting oil, rust preventive oil, hydraulic oil, slideway oil, spindle oil, gear oil and so on that cover the whole industrial lubricant value chain.

HLJH has been offering customers high-quality metalworking oils and fluids, both with advanced technology and 39 years of experience, HLJH ensures each customer's demands are met.